Multiquip Portable Generator Dca45Ssiu4 Users Manual

Multiquip Portable Generator dca45ssiu4 Generators_portable_supersilent_DCA45SSIU4_rev_1_60_hz_manual_DataId_19054_Version_2

dca45ssiu4 to the manual de8e4cef-f862-41a0-ba5a-7fc82b845764

2015-02-09

: Multiquip Multiquip-Multiquip-Portable-Generator-Dca45Ssiu4-Users-Manual-558556 multiquip-multiquip-portable-generator-dca45ssiu4-users-manual-558556 multiquip pdf

Open the PDF directly: View PDF .
Page Count: 82

Download
Open PDF In Browser	View PDF

Operation and Parts Manual

Whisperwatt™ Series

MODEL dca45ssiu4
60hz generator

(isuzu 4JJ1t DIESEL ENGINE)
PARTS LIST NO. M1870301104

Revision #1 (10/24/13)
To find the latest revision of this
publication, visit our website at:
www.mqpower.com

THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.

proposition 65 warning

Diesel engine exhaust and some of

page 2 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

Reporting Safety Defects

If you believe that your vehicle has a defect that could cause a crash or could
cause injury or death, you should immediately inform the National Highway
Traffic Safety Administration (NHTSA) in addition to notifying Multiquip at
1-800-421-1244.
If NHTSA receives similar complaints, it may open an investigation, and if it
finds that a safety defect exists in a group of vehicles, it may order a recall and
remedy campaign. However, NHTSA cannot become involved in individual
problems between you, your dealer, or Multiquip.
To contact NHTSA, you may either call the Vehicle Safety Hotline toll-free at
1-888-327-4236 (TTY: 1-800-424-9153), go to http://www.nhtsa.dot.gov; or
write to:
Administrator
NHTSA
1200 New Jersey Avenue S.E.
Washington, DC 20590
You can also obtain information about motor vehicle safety from
http://www.safecar.gov.

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 3

Table of Contents

DCA45SSIU4 Generator

Proposition 65 Warning............................................ 2
Reporting Safety Defects.......................................... 3
Table Of Contents..................................................... 4
Parts Ordering Procedures....................................... 5
Safety Information............................................... 6-11
Specifications......................................................... 12
Dimensions............................................................. 13
Installation.............................................................. 14
Installation.............................................................. 15
General Information................................................ 16
Major Components................................................. 17
Generator Control Panel......................................... 18
Engine Operating Panel.................................... 20-21
Output Terminal Panel Familiarization............... 22-24
Load Application..................................................... 25
Generator Outputs.................................................. 26
Generator Outputs/Gauge Reading........................ 27
Output Terminal Panel Connections.................. 28-29
Inspection/Setup................................................ 30-33
Generator Start-Up Procedure ......................... 34-35
Generator Shut-Down Procedures......................... 36
Maintenance...................................................... 37-39
Trailer Maintenance........................................... 40-43
Trailer WirIng Diagram............................................ 44
Generator Wiring Diagram...................................... 45
Engine Wiring Diagram........................................... 46
Controller Wiring Diagram...................................... 47
Troubleshooting (Generator)................................... 48
Troubleshooting (Diagnostic Lamp)........................ 49
Explanation Of Code In Remarks Column............. 50
Suggested Spare Parts.......................................... 51

Component Drawings

Generator Assembly.......................................... 52-53
Control Box Assembly....................................... 54-59
Engine and Radiator Assembly......................... 60-63
Output Terminal Assembly................................. 64-65
Battery Assembly.............................................. 66-67
Muffler Assembly............................................... 68-69
Fuel Tank Assembly .......................................... 70-71
Enclosure Assembly.......................................... 72-75
Rubber Seals Assembly.................................... 76-77
Nameplate and Decals Assembly ..................... 78-79
Terms And Conditions Of Sale — Parts................. 80

page 4 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

www.multiquip.com

Parts Ordering Procedures
Ordering parts has never been easier!
choose from three easy options:

Order via Internet (Dealers only):

best Deal!

Effective:
January 1st, 2006

If you have an MQ Account, to obtain a Username
and Password, E-mail us at: parts@multiquip.
com.

Order parts on-line using Multiquip’s SmartEquip website!
■ View Parts Diagrams
■ Order Parts
■ Print Specification Information

To obtain an MQ Account, contact your
District Sales Manager for more information.

Use the internet and qualify for a 5% Discount
on Standard orders for all orders which include
complete part numbers.*

Goto www.multiquip.com and click on
Order Parts to log in and save!

Note: Discounts Are Subject To Change

Order via Fax (Dealers only):

All customers are welcome to order parts via Fax.
Domestic (US) Customers dial:
1-800-6-PARTS-7 (800-672-7877)

Fax your order in and qualify for a 2% Discount
on Standard orders for all orders which include
complete part numbers.*
Note: Discounts Are Subject To Change

order via phone: Domestic (US) Dealers Call:
1-800-427-1244

non-Dealer Customers:
Contact your local Multiquip Dealer for
parts or call 800-427-1244 for help in
locating a dealer near you.

International Customers should contact
their local Multiquip Representatives for
Parts Ordering information.

When ordering parts, please supply:
❒
❒
❒
❒
❒
❒

Dealer Account Number
Dealer Name and Address
Shipping address (if different than billing address)
Return Fax Number
applicable model number
Quantity, part number and Description of each part

❒

Specify preferred method of Shipment:
✓ UPS/Fed Ex
✓ DHL
■ Priority One
✓ Truck
■ Ground
■ Next Day
■ Second/Third Day

NOTICE
All orders are treated as Standard Orders and will
ship the same day if received prior to 3PM PST.
We aCCept all maJor CreDIt CarDS!

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 5

Safety Information
Do not operate or service the equipment before reading the
entire manual. Safety precautions should be followed at all
times when operating this equipment. Failure to read and
understand the safety messages and operating instructions
could result in injury to yourself and others.

Potential hazards associated with the operation of this
equipment will be referenced with hazard symbols which
may appear throughout this manual in conjunction with
safety messages.

SaFetY meSSageS
The four safety messages shown below will inform you
about potential hazards that could injure you or others. The
safety messages specifically address the level of exposure
to the operator and are preceded by one of four words:
DANGER, WARNING, CAUTION or notICe.
SaFetY SYmbolS
DANGER
Indicates a hazardous situation which, if not avoided,
WIll result in DEATH or SerIoUS InJUrY.
WARNING
Indicates a hazardous situation which, if not avoided,
CoUlD result in DEATH or SerIoUS InJUrY.
CAUTION
Indicates a hazardous situation which, if not avoided,
CoUlD result in mInor or moDerate InJUrY.
NOTICE
Addresses practices not related to personal injury.

page 6 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

Safety Information
general SaFetY
CAUTION
never operate this equipment without proper protective
clothing, shatterproof glasses, respiratory protection,
hearing protection, steel-toed boots and other protective
devices required by the job or city and state regulations.

never operate this equipment when not
feeling well due to fatigue, illness or when
under medication.
never operate this equipment under the influence of
drugs or alcohol.

never use accessories or attachments that are not
recommended by MQ Power for this equipment. Damage
to the equipment and/or injury to user may result.
alWaYS know the location of the nearest
fire extinguisher.
alWaYS know the location of the nearest
first aid kit.
alWaYS know the location of the nearest
phone or keep a phone on the job site. Also, know the
phone numbers of the nearest ambulance, doctor and
fire department. This information will be invaluable in
the case of an emergency.

GENERATOR SAFETy
DANGER

alWaYS check the equipment for loosened threads or
bolts before starting.
DO NOT use the equipment for any purpose other than
its intended purposes or applications.
NOTICE
This equipment should only be operated by trained and
qualified personnel 18 years of age and older.
Whenever necessary, replace nameplate, operation and
safety decals when they become difficult read.
Manufacturer does not assume responsibility for any
accident due to equipment modifications. Unauthorized
equipment modification will void all warranties.

never operate the equipment in an explosive
atmosphere or near combustible materials. An
explosion or fire could result causing severe
bodily harm or even death.
WARNING
never disconnect any emergency or safety devices.
These devices are intended for operator safety.
Disconnection of these devices can cause severe injury,
bodily harm or even death. Disconnection of any of these
devices will void all warranties.
CAUTION
never lubricate components or attempt service on a
running machine.
NOTICE
alWaYS ensure generator is on level ground before use.
alWaYS keep the machine in proper running condition.
Fix damage to machine and replace any broken parts
immediately.
alWaYS store equipment properly when it is not being
used. Equipment should be stored in a clean, dry location
out of the reach of children and unauthorized personnel

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 7

Safety Information
ENGINE SAFETy
DANGER
The engine fuel exhaust gases contain poisonous carbon
monoxide. This gas is colorless and odorless, and can
cause death if inhaled.
The engine of this equipment
requires an adequate free
flow of cooling air. never
operate this equipment in
any enclosed or narrow area
where free flow of the air is
restricted. If the air flow is
restricted it will cause injury to people and property and
serious damage to the equipment or engine.
WARNING
DO NOT place hands or fingers inside engine
compartment when engine is running.
never operate the engine with heat shields or
guards removed.
Keep fingers, hands hair and clothing away
from all moving parts to prevent injury.
DO NOT remove the radiator cap while the
engine is hot. High pressure boiling water
will gush out of the radiator and severely
scald any persons in the general area of
the generator.
DO NOT remove the coolant drain plug while the engine
is hot. Hot coolant will gush out of the coolant tank and
severely scald any persons in the general area of the
generator.
DO NOT remove the engine oil drain plug while the
engine is hot. Hot oil will gush out of the oil tank and
severely scald any persons in the general area of the
generator.
CAUTION
never touch the hot exhaust manifold,
muffler or cylinder. Allow these parts to cool
before servicing equipment.

NOTICE
never run engine without an air filter or with a dirty air
filter. Severe engine damage may occur. Service air filter
frequently to prevent engine malfunction.
never tamper with the factory settings
of the engine or engine governor. Damage
to the engine or equipment can result
if operating in speed ranges above the
maximum allowable.
Wet stacking is a common problem with diesel engines
which are operated for extended periods with light or
no load applied. When a diesel engine operates without
sufficient load (less than 40% of the rated output), it will
not operate at its optimum temperature. This will allow
unburned fuel to accumulate in the exhaust system,
which can foul the fuel injectors, engine valves and
exhaust system, including turbochargers, and reduce
the operating performance.
In order for a diesel engine to operate at peak efficiency,
it must be able to provide fuel and air in the proper ratio
and at a high enough engine temperature for the engine
to completely burn all of the fuel.
Wet stacking does not usually cause any permanent
damage and can be alleviated if additional load is
applied to relieve the condition. It can reduce the system
performance and increase maintenance. Applying an
increasing load over a period of time until the excess
fuel is burned off and the system capacity is reached
usually can repair the condition. This can take several
hours to burn off the accumulated unburned fuel.
State Health Safety Codes and Public Resources
Codes specify that in certain locations, spark arresters
must be used on internal combustion engines that use
hydrocarbon fuels. A spark arrester is a device designed
to prevent accidental discharge of sparks or flames
from the engine exhaust. Spark arresters are qualified
and rated by the United States Forest Service for this
purpose. In order to comply with local laws regarding
spark arresters, consult the engine distributor or the
local Health and Safety Administrator.

page 8 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

Safety Information
FUel SaFetY
DANGER
DO NOT start the engine near spilled fuel or combustible
fluids. Diesel fuel is extremely flammable and its vapors
can cause an explosion if ignited.

Make sure the hitch and coupling of the towing vehicle
are rated equal to, or greater than the trailer “gross
vehicle weight rating.”
alWaYS inspect the hitch and coupling for wear. never
tow a trailer with defective hitches, couplings, chains, etc.

alWaYS refuel in a well-ventilated area, away from
sparks and open flames.

Check the tire air pressure on both towing vehicle and
trailer. Trailer tires should be inﬂated to 50 psi cold.
Also check the tire tread wear on both vehicles.

alWaYS use extreme caution when working with
ﬂammable liquids.

alWaYS make sure the trailer is equipped with a safety
chain.

DO NOT fill the fuel tank while the engine is running
or hot.

alWaYS properly attach trailer’s safety chains to towing
vehicle.

DO NOT overfill tank, since spilled fuel could ignite if it
comes into contact with hot engine parts or sparks from
the ignition system.

alWaYS make sure the vehicle and trailer directional,
backup, brake and trailer lights are connected and
working properly.

Store fuel in appropriate containers, in well-ventilated
areas and away from sparks and flames.

DOT Requirements include the following:

never use fuel as a cleaning agent.
DO NOT smoke around or near the
equipment. Fire or explosion could result
from fuel vapors or if fuel is spilled on a
hot engine.

TOWING SAFETy
CAUTION
Check with your local county or state safety
towing regulations, in addition to meeting
Department of Transportation (DOT)
Safety Towing Regulations, before towing
your generator.
Refer to MQ Power trailer manual for additional safety
information.
In order to reduce the possibility of an accident while
transporting the generator on public roads, alWaYS
make sure the trailer that supports the generator and
the towing vehicle are mechanically sound and in good
operating condition.
alWaYS shutdown engine before transporting

• Connect and test electric brake operation.
• Secure portable power cables in cable tray with tie
wraps.
The maximum speed for highway towing is 55 mph unless
posted otherwise. Recommended off-road towing is not to
exceed 15 mph or less depending on type of terrain.
Avoid sudden stops and starts. This can cause skidding,
or jack-knifing. Smooth, gradual starts and stops will
improve towing.
Avoid sharp turns to prevent rolling.
Trailer should be adjusted to a level position at all times
when towing.
Raise and lock trailer wheel stand in up position when
towing.
Place chock blocks underneath wheel to prevent rolling
while parked.
Place support blocks underneath the trailer’s bumper
to prevent tipping while parked.
Use the trailer’s swivel jack to adjust the trailer height to
a level position while parked.

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 9

Safety Information
eleCtrICal SaFetY
DANGER
DO NOT touch output terminals during
operation. Contact with output terminals
during operation can cause electrocution,
electrical shock or burn.
The electrical voltage required to
operate the generator can cause severe
injury or even death through physical contact with live
circuits. Turn generator and all circuit breakers OFF
before performing maintenance on the generator or
making contact with output terminals.
never insert any objects into the output
receptacles during operation. This is
extremely dangerous. The possibility exists
of electrical shock, electrocution or
death.
Backfeed to a utility system can cause
electrocution and/or property damage.
never connect the generator to a
building’s electrical system without
a transfer switch or other approved
device. All installations should be
performed by a licensed electrician in accordance with
all applicable laws and electrical codes. Failure to do so
could result in electrical shock or burn, causing serious
injury or even death.

power Cord/Cable Safety
DANGER
never let power cords or cables lay in water.
never stand in water while AC power from the
generator is being transferred to a load.
never use damaged or worn cables or cords when
connecting equipment to generator. Inspect for cuts in
the insulation.
never grab or touch a live power
cord or cable with wet hands. The
possibility exists of electrical shock,
electrocution or death.

Make sure power cables are securely connected to the
generator’s output receptacles. Incorrect connections
may cause electrical shock and damage to the
generator.
NOTICE
alWaYS make certain that proper power or extension
cord has been selected for the job. See Cable Selection
Chart in this manual.

grounding Safety
DANGER
alWaYS make sure that electrical circuits are properly
grounded to a suitable earth ground (ground rod) per
the National Electrical Code (NEC) and local codes
before operating generator. Severe injury or death by
electrocution can result from operating an ungrounded
generator.
never use gas piping as an electrical ground.

BATTERy SAFETy
DANGER
DO NOT drop the battery. There is a possibility that the
battery will explode.
DO NOT expose the battery to open flames,
sparks, cigarettes, etc. The battery contains
combustible gases and liquids. If these
gases and liquids come into contact with a
flame or spark, an explosion could occur.
WARNING
alWaYS wear safety glasses when
handling the battery to avoid eye irritation.
The battery contains acids that can cause
injury to the eyes and skin.
Use well-insulated gloves when picking up the battery.
alWaYS keep the battery charged. If the battery is not
charged, combustible gas will build up.
alWaYS recharge the battery in a well-ventilated
environment to avoid the risk of a dangerous concentration
of combustible gasses.

page 10 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

Safety Information
If the battery liquid (dilute sulfuric acid) comes into
contact with clothing or skin, rinse skin or clothing
immediately with plenty of water.

emISSIonS InFormatIon

If the battery liquid (dilute sulfuric acid) comes into
contact with eyes, rinse eyes immediately with plenty
of water and contact the nearest doctor or hospital to
seek medical attention.

The diesel engine used in this equipment has been
designed to reduce harmful levels of carbon monoxide
(CO), hydrocarbons (HC) and nitrogen oxides (NOx)
contained in diesel exhaust emissions.

CAUTION
alWaYS disconnect the negatIve battery terminal
before performing service on the generator.
alWaYS keep battery cables in good working condition.
Repair or replace all worn cables.

envIronmental SaFetY/DeCommISSIonIng
NOTICE
Decommissioning is a controlled process used to safely
retire a piece of equipment that is no longer serviceable.
If the equipment poses an unacceptable and unrepairable
safety risk due to wear or damage or is no longer cost
effective to maintain (beyond life-cycle reliability) and is to
be decommissioned (demolition and dismantlement),be
sure to follow rules below.

NOTICE

This engine has been certified to meet US EPA Evaporative
emissions requirements in the installed configuration.
Attempting to modify or make adjustments to the engine
emission system by unauthorized personnel without proper
training could damage the equipment or create an unsafe
condition.
Additionally, modifying the fuel system may adversely affect
evaporative emissions, resulting in fines or other penalties.

emission Control label
The emission control label is an integral part of the emission
system and is strictly controlled by regulations.
The label must remain with the engine for its entire life.
If a replacement emission label is needed, please contact
your authorized engine distributor.

DO NOT pour waste or oil directly onto the ground, down
a drain or into any water source.
Contact your country's Department of
Public Works or recycling agency in your
area and arrange for proper disposal of
any electrical components, waste or oil
associated with this equipment.
When the life cycle of this equipment is over, remove
battery and bring to appropriate facility for lead
reclamation. Use safety precautions when handling
batteries that contain sulfuric acid.
When the life cycle of this equipment is over, it is
recommended that the trowel frame and all other metal
parts be sent to a recycling center.
Metal recycling involves the collection of metal from
discarded products and its transformation into raw
materials to use in manufacturing a new product.
Recyclers and manufacturers alike promote the process
of recycling metal. Using a metal recycling center
promotes energy cost savings.

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 11

Specifications
Model
Type
Armature Connection
Phase
Standby Output
Prime Output
Voltage
Frequency
Speed
Aux. AC Power
Aux. Voltage/Output
Model
Type
No. of Cylinders
Bore x Stroke
Displacement
Rated Output
Starting
Coolant Capacity
Lube Oil Capacity
Fuel Type
Fuel Tank Capacity
Fuel Consumption
Battery

Table 1. Generator Specifications
DCA-45SSIU4
Revolving field, self ventilated,
open protected type synchronous generator
Star with Neutral
Zigzag
3
Single
49.4 KVA (39.6 kW)
28.6 KW
45 kVA (36 KW)
26 KW
240 or 480V
240 or 120V
60 Hz
1800 rpm
Single Phase, 60 Hz
4.8 Kw (2.4 kW x 2)
Table 2. Engine Specifications
ISUZU 4JJ1T
4 cycle, water-cooled, direct injection, turbo-charged
4 cylinders
3.76 in. x 4.13 in. (95.4 mm x 105 mm)
183 cu. in. (3,000 cc)
57 HP/1800 RPM
Electric
2.96 gal. (11.2 liters)
3.96 gal. (15.0 liters)
#2 Diesel Fuel
26 gal. (100 liters)
2.8 gal. (10.6 L)/hr at full load
12V 72Ah x 1

page 12 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

Dimensions

Figure 1. Dimensions

Table 3. Dimensions
Reference
Letter

Dimension in. (mm)

Reference Letter

Dimension in. (mm)

30.31 in. (770 mm.)

76.38 in. (1,940 mm.)

25.00 in. (635 mm.)

49.21 in. (1,250 mm.)

29.05 in. (738 mm.)

35.43 in. (900 mm.)

24.21 in. (615 mm.)

29.05 in. (945 mm.)

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 13

Installation

Figure 2. Typical Generator Grounding Application

page 14 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

Installation
Outdoor Installation

Generator Grounding

Install the generator in a area that is free of debris,
bystanders, and overhead obstructions. Make sure the
generator is on secure level ground so that it cannot slide
or shift around. Also install the generator in a manner so
that the exhaust will not be discharged in the direction of
nearby homes.

To guard against electrical shock and possible damage to
the equipment, it is important to provide a good EARTH
ground.

The installation site must be relatively free from moisture
and dust. All electrical equipment should be protected from
excessive moisture. Failure to do will result in deterioration
of the insulation and will result in short circuits and
grounding.
Foreign materials such as dust, sand, lint and abrasive
materials have a tendency to cause excessive wear to
engine and alternator parts.
CAUTION
Pay close attention to ventilation when operating the
generator inside tunnels and caves. The engine exhaust
contains noxious elements. Engine exhaust must be
routed to a ventilated area.

Indoor Installation
Exhaust gases from diesel engines are extremely
poisonous. Whenever an engine is installed indoors the
exhaust fumes must be vented to the outside. The engine
should be installed at least two feet from any outside wall.
Using an exhaust pipe which is too long or too small can
cause excessive back pressure which will cause the engine
to heat excessively and possibly burn the valves.

Article 250 (Grounding) of the National Electrical Code
(NEC) provides guide lines for proper grounding and
specifies that the cable ground shall be connected to the
grounding system of the building as close to the point of
cable entry as practical.
NEC articles 250-64(b) and 250-66 set the following
grounding requirements:
1. Use one of the following wire types to connect the
generator to earth ground.
a. Copper - 10 AWG (5.3 mm2) or larger.
b. Aluminum - 8 AWG (8.4 mm2) or larger.
2. When grounding the generator (Figure 2) connect the
ground cable between the lock washer and the nut on
the generator and tighten the nut fully. Connect the
other end of the ground cable to earth ground.
3. NEC article 250-52(c) specifies that the earth ground rod
should be buried a minimum of 8 ft. into the ground.
NOTICE
When connecting the generator to any buildings
electrical system ALWAYS consult with a licensed
electrician.

Mounting
The generator must be mounted on a solid foundation (such
as concrete) and set firmly on the foundation to isolate
vibration of the generator when it is running. The generator
must set at least 6 inches above the floor or grade level (in
accordance to NFPA 110, Chapter 5-4.1). DO NOT remove
the metal skids on the bottom of the generator. They are
to resist damage to the bottom of the generator and to
maintain alignment.

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 15

General Information
Generator

Open Delta Excitation System

The MQ Power Model DCA45SSIU4 generator (Figure 3) is
a high quality portable (requires a trailer for transport) power
source for telecom sites, lighting facilities, power tools,
submersible pumps and other industrial and construction
machinery.

The DCA45SSIU4 generator is equipped with the state of
the art “Open-Delta” excitation system. The open delta
system consist of an electrically independent winding
wound among stationary windings of the AC output
section.
There are four connections of the open delta A, B, C and
D. During steady state loads, the power from the voltage
regulator is supplied from the parallel connections of A to
B, A to D, and C to D. These three phases of the voltage
input to the voltage regulator are then rectified and are the
excitation current for the exciter section.
When a heavy load, such as a motor starting or a short
circuit occurs, the automatic voltage regulator (AVR)
switches the configuration of the open delta to the series
connection of B to C. This has the effect of adding the
voltages of each phase to provide higher excitation to the
exciter section and thus better voltage response during the
application of heavy loads.
The connections of the AVR to the AC output windings are
for sensing only. No power is required from these windings.
The open-delta design provides virtually unlimited excitation
current, offering maximum motor starting capabilities. The
excitation does not have a “fixed ceiling” and responds
according the demands of the required load.

Engine Operating Panel
The “Engine Operating Panel” is provided with the following:
Tachometer
Water Temperature Gauge
Warning Lamp
Pre-Heat Lamp
Oil Pressure Gauge
Charging Ammeter Gauge
Fuel Level Gauge
Panel Light/Panel Light Switch
ECU Controller
Engine Speed Switch

Generator Control Panel
The “Generator Control Panel” is provided with the following:
Frequency Meter (Hz)
AC Ammeter (Amps)
AC Voltmeter (Volts)
Ammeter Change-Over Switch
Voltmeter Change-Over Switch
Voltage Regulator
3-Pole, 110 amp Main Circuit Breaker
“Control Box” (located behind the Gen. Control Panel)
• Automatic Voltage Regulator
• Current Transformer
• Over-Current Relay
• Starter Relay
• Voltage Selector Switch

Engine
The DCA45SSIU4 is powered by a 4 cylinder, water
cooled, direct injection, turbocharged ISUZU 4JJ1T diesel
engine. This engine is designed to meet every performance
requirement for the generator. Reference Table 2 for engine
specifications.
In keeping with MQ Power’s policy of constantly improving
its products, the specifications quoted herein are subject
to change without prior notice.

Output Terminal Panel

Electric Governor System

The “Output Terminal Panel” is provided with the following:
Three 120/240V output receptacles (CS-6369), 50A
Three auxiliary circuit breakers, 50A
Two 120V output receptacles (GFCI), 20A
Two GFCI circuit breakers, 20A
Five output terminal lugs (3Ø power)

The electric governor system controls the RPMs of the engine.
When the engine demand increases or decreases, the
governor system regulates the frequency variation to ±.25%.

Extension Cables
When electric power is to be provided to various tools or
loads at some distance from the generator, extension cords
are normally used. Cables should be sized to allow for
distance in length and amperage so that the voltage drop
between the generator and point of use (load) is held to
a minimum. Use the cable selection chart (Table 6) as a
guide for selecting proper extension cable size.

page 16 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

Major Components

1
45

AUTO

MANUAL

OFF/RESET
LOW OIL PRESSURE
HIGH COOLANT TEMPERATURE
OVERCRANK
OVERSPEED
ENGINE RUNNING

MOOOOO-20001Q

1000

2000

3000

RPM

Denyo

Table 4. Generator Major Components
ITEM NO.
DESCRIPTION
1
Output Terminal Panel Assembly
2
Output Receptacles Assembly
3
Air Filter Assembly
4
Muffler Assembly
5
Fuel Tank Assembly
6
Engine Assembly
7
Battery Assembly
8
Generator Assembly
9
Engine Operating Panel Assembly
10
Generator Control Panel Assembly

Figure 3. Major Components

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 17

Generator Control Panel

1
7

DECREASE

INCREASE

2
V
U

AUTO

MANUAL

OFF/RESET

W
OFF

V-W

LOW OIL PRESSURE
HIGH COOLANT TEMPERATURE
OVERCRANK
OVERSPEED
ENGINE RUNNING

W-U

U-V
OFF

MOOOOO-20001Q

1000

2000

3000

RPM

Figure 4. Generator Control Panel

The definitions below describe the controls and functions
of the DCA45SSIU4 Generator Control Panel (Figure 4).
1. Voltage Regulator Control — Allows ±15% manual
adjustment of the generator’s output voltage.
2. Main Circuit Breaker—This three-pole, 110A main
breaker is provided to protect the the U,V, and W
Output Terminal Lugs from overload.

Located behind the generator control panel is the Generator
Control Box. This box contains some of the necessary
electronic components required to make the generator
function.
The Control Box is equipped with the following major
components:
Over-Current Relay

3. Ammeter Change-Over Switch — This switch allows
the AC ammeter to indicate the current flowing to the
load connected to any phase of the output terminals,
or to be switched off. This switch does not effect the
generator output in any fashion, it is for current reading
only.

Automatic Voltage Regulator (AVR)

4. Voltmeter Change-Over Switch — This switch allows
the AC voltmeter to indicate phase to phase voltage
between any two phases of the output terminals or to
be switched off.

Main Circuit Breaker

5. AC Voltmeter — Indicates the output voltage present
at the U,V, and W Output Terminal Lugs.
6. AC Ammeter — Indicates the amount of current the
load is drawing from the generator per leg selected by
the ammeter phase-selector switch.
7. Frequency Meter — Indicates the output frequency
in hertz (Hz). Normally 60 Hz.

Starter Relay
Current Transformer
Voltage Selector Switch

NOTICE
Remember the overcurrent relay monitors the current
flowing from the U,V, and W Output Terminal Lugs
to the load.
In the event of a short circuit or over current condition,
it will automatically trip the 110 amp main breaker.
To restore power to the Output Terminal Panel, press
the reset button on the overcurrent relay and place the
main circuit breaker in the closed position (ON).

page 18 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

Notes

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 19

ENGINE OPERATING PANEL

4
5

DECREASE

INCREASE

6
V
U

AUTO

MANUAL

OFF/RESET

W
OFF

V-W

LOW OIL PRESSURE
HIGH COOLANT TEMPERATURE
OVERCRANK
OVERSPEED
ENGINE RUNNING

W-U

U-V
OFF

MOOOOO-20001Q

1000

2000

3000

RPM

Figure 5. Engine Operating Panel

page 20 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

ENGINE OPERATING PANEL
The definitions below describe the controls and functions of
the DCA-45SSIU4 Engine Operating Panel (Figure 5).

If the engine does not engage (start) by the third
attempt, the engine will be shutdown by the engine
controller’s Over Crank Protection mode. If the engine
engages at a speed (RPM's) that is not safe, the
controller will shutdown the engine by initializing the
Over Speed Protection mode.

Also the engine controller will shut down the engine in
the event of low oil pressure, high coolant temperature,
low coolant level, and loss of magnetic pickup.
These conditions can be observed by monitoring the
LED status indicators on the front of the controller
module.

1. Warning Lamp — This lamp will illuminate whe a
critical engine fault has occured.
2. Preheat Lamp — As the engine cranks, this lamp
will illuminate to indicate automatic preheating of
the engine glow plugs. When the lamp turns off, this
indicates that the preheat cycle is complte and the
engine will start automatically.
3. Panel Light — Normally used in dark areas or at night
time. When activated, panel lights will illuminate. When
the generator is not in use be sure to turn the panel
light switch to the OFF position.
4. Panel Light Switch — When activated will turn on
control panel light.
5. Oil Pressure Gauge — During normal operation this
gauge should read between 42 ~71 psi. (290~490 kPa).
When starting the generator the oil pressure may read
a little higher, but after the engine warms up the oil
pressure should return to the correct pressure range.
6. Water Temperature Gauge — During normal operation
this gauge be should read between 167°~203°F (75°
~95°C
7. Charging Ammeter Gauge — Indicates the current
being supplied by the engine’s alternator which
provides current for generator’s control circuits and
battery charging system.
8. Fuel Gauge — Indicates amount of diesel fuel
available.
9. Tachometer — Indicates engine speed in RPM’s for 60
Hz operation. This meter should indicate 1800 RPM’s
when the rated load is applied. In addition a built in hour
meter will record the number of operational hours that
the generator has been in use.
10. Engine Speed Switch — This switch controls the
speed of the engine (low/high).
11. Auto START/STOP Engine Controller (ECU) — This
controller has a vertical row of status LED's (inset), that
when lit, indicate that an engine
malfunction (fault) has been
detected. When a fault has been
detected the engine controller will
evaluate the fault and all major
faults will shutdown the generator.
During cranking cycle, the ECU
will attempt to crank the engine for
10 seconds before disengaging.

A. MPEC Control Switch — This switch controls the
running of the unit. If this switch is set to the OFF/
RESET position, the unit will not run. When this switch
is set to the manual position, the generator will start
immediately.

If the generator is to be connected to a building’s
AC power source via an automatic transfer switch
(isolation), place the switch in the AUTO position. In this
position, should an outage occur, the automatic transfer
switch (ATS) will start the generator automatically
via the generator’s auto-start contacts connected to
the ATS’s start contacts. Please refer to your ATS
installation manual for further instructions for the
correct installation of the auto-start contacts of the
generator to the ATS.

B. Low Oil Pressure — Indicates the engine pressure
has fallen below 15 psi (103 kPa). The oil pressure
is detected using variable resistive values from the
oil pressure sending unit. This is considered a major
fault.
C. High Coolant Temperature — Indicates the engine
temperature has exceeded 230°F (110°C). The engine
temperature is detected using variable resistive values
from the temperature sending unit. This is considered
a major fault.
D. Overcrank Shutdown — Indicates the unit has
attempted to start a pre- programmed number of
times, and has failed to start. The number of cycles
and duration are programmable. It is pre-set at 3
cycles with a 10 second duration. This is considered
a major fault.
E. Overspeed Shutdown — Indicates the engine is
running at an unsafe speed. This is considered a
major fault.
F. Engine Running — Indicates that engine is running
at a safe operating speed.

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 21

OUTPUT TERMINAL PANEL FAMILIARIZATION
Output Terminal Panel

Output Terminal Familiarization

The Output Terminal Panel (Figure 6) shown below is
located on the right-hand side (left from control panel) of
the generator. Lift up on the cover to gain access to
receptacles and terminal lugs.

The “Output Terminal Panel ” (Figure 6) is provided with
the following:
Three 120/240V output receptacles @ 50 amp

NOTICE

Three Circuit Breakers @ 50 amps

Terminal legs “O” and “Ground” are considered bonded
grounds.

Two 120V GFCI receptacles @ 20 amp
Two GFCI Circuit Breakers @ 20 amps
Five Output Terminal Lugs ( U, V, W, O, Ground)

1Ø AND 3Ø,
480 -120 VAC
OUTPUT TERMINALS

NEUTRAL
TERMINAL

GROUND
TERMINAL

HARD WIRE
HOOKUP PANEL
U

BLACK

RED

BLUE WHITE

GREEN

CIRCUIT BREAKERS
FOR GFCI RECEPTACLES

CIRCUIT BREAKERS
FOR CS-6369 TWIST
LOCK RECEPTACLES

120 VAC, 20 AMP
GFCI RECEPTACLES

ACCESS DOOR
LIFT TO OPEN
RECEPTACLE
AND
CIRCUIT BREAKER
PANEL

X
CS-6369
TWIST-LOCK

AUX. POWER RECEPTACLES
120/240V, 50 AMPS

Figure 6. Output Terminal Panel

page 22 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

OUTPUT TERMINAL PANEL FAMILIARIZATION
120 VAC GFCI Receptacles
There are two 120 VAC, 20 amp GFCI (Duplex Nema
5-20R) receptacles provided on the output terminal panel.
These receptacles can be accessed in any voltage
selector switch position. Each receptacle is protected by a
20 amp circuit breaker. These breakers are located directly
above the GFCI receptacles. Remember the load output
(current) of both GFCI receptacles is dependent on the load
requirements of the U, V, and W output terminal lugs.
Pressing the reset button resets the GFCI receptacle after
being tripped. Pressing the test button (See Figure 7) in
the center of the receptacle will check the GFCI function.
Both receptacles should be tested at least once a month.

Each auxiliary receptacle is protected by a 50 amp circuit
breaker. These breakers are located directly above the
GFCI receptacles. Remember the load output (current) on
all three receptacles is dependent on the load requirements
of the Output Terminal Lugs.
Turn the voltage regulator control knob (Figure 9) on the
control panel to obtain the desired voltage. Turning the knob
clockwise will increase the voltage, turning the knob
counter-clockwise will decrease the voltage.

Figure 9. Voltage Regulator Control Knob

Removing the Plastic Face Plate (Hard Wire
Hookup Panel)
The Output Terminal Lugs are protected by a plastic
face plate cover (Figure 10). Un-screw the securing bolts
and lift the plastic terminal cover to gain access to the
terminal enclosure.
After the load wires have been securely attached to the
terminal lugs, reinstall the plastic face plate.
Figure 7. G.F.C.I. Receptacle

Twist Lock Dual Voltage 120/240 VAC Receptacles
There are three 120/240V, 50 amp auxiliary twist-lock (CS6369) receptacles (Figure 8) provided on the output
terminal panel. These receptacles can only be accessed
when the voltage selector switch is placed in the singlephase 240/120 position.

Figure 10. Plastic Face Plate (Output Terminal
Lugs)

Figure 8. 120/240V Twist-Lock Auxiliary
Receptacles

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 23

OUTPUT TERMINAL PANEL FAMILIARIZATION
Connecting Loads

Over Current Relay

Loads can be connected to the generator by the Output
Terminal Lugs or the convenience receptacles (Figure 11).
Make sure to read the operation manual before attempting
to connect a load to the generator.

An over current relay (Figure 12) is connected to the main
circuit breaker. In the event of an overload, both the circuit
breaker and the over current relay may trip. If the circuit
breaker can not be reset, the reset button on the over
current relay must be pressed. The over current relay is
located in the control box.

To protect the output terminals from overload, a 3-pole,
110A main circuit breaker is provided. Make sure to switch
ALL circuit breakers to the OFF position prior to starting
the engine.

Figure 12. Over Current Relay
Figure 11. Connecting Loads

page 24 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

Load Application
Single Phase Load

Three Phase Load

Always be sure to check the nameplate on the generator
and equipment to insure the wattage, amperage, frequency,
and voltage requirements are satisfactorily supplied by the
generator for operating the equipment.

When calculating the power requirements for 3-phase
power use the following equation:

Generally, the wattage listed on the nameplate of the
equipment is its rated output. Equipment may require
130—150% more wattage than the rating on the nameplate,
as the wattage is influenced by the efficiency, power factor
and starting system of the equipment.
NOTICE
If wattage is not given on the equipment’s name plate,
approximate wattage may be determined by multiplying
nameplate voltage by the nameplate amperage.
WATTS = VOLTAGE x AMPERAGE
The power factor of this generator is 0.8. See Table 5 below
when connecting loads.
Table 5. Power Factor By Load
Type of Load
Power Factor
Single-phase induction motors

0.4-0.75

Electric heaters, incandescent lamps
Fluorescent lamps, mercury lamps
Electronic devices, communication
equipment
Common power tools

1.0
0.4-0.9
1.0
0.8

Maximum Allowable Cable Length

Current
in
Amperes

At 100
Volts

At 200
Volts

#10 Wire

#12 Wire

#14 Wire

#16 Wire

2.5

300

600

1000 ft.

600 ft.

375 ft.

250 ft.

600

1200

500 ft.

300 ft.

200 ft.

125 ft.

7.5

900

1800

350 ft.

200 ft.

125 ft.

100 ft.

1200

2400

250 ft.

150 ft.

100 ft.

1800

3600

150 ft.

100 ft.

65 ft.

2400

4800

125 ft.

75 ft.

50 ft.

If 3Ø load (kVA) is not given on the equipment
nameplate, approximate 3Ø load may be determined
by multiplying voltage by amperage by 1.732.
NOTICE
Motors and motor-driven equipment draw much greater
current for starting than during operation.
An inadequate size connecting cable which cannot carry
the required load can cause a voltage drop which can
burn out the appliance or tool and overheat the cable. See
Table 6.
When connecting a resistance load such as an
incandescent lamp or electric heater, a capacity of up to
the generating set’s rated output (kW) can be used.
When connecting a fluorescent or mercury lamp, a
capacity of up to the generating set’s rated output (kW)
multiplied by 0.6 can be used.
When connecting an electric drill or other power tools,
pay close attention to the required starting current
capacity.

Table 6. Cable Selection (60 Hz, Single Phase Operation)
Load in Watts

NOTICE

When connecting ordinary power tools, a capacity of up to
the generating set’s rated output (kW) multiplied by 0.8 can
be used.
DANGER
Before connecting this generator to any building’s
electrical system, a licensed electrician must install
an isolation (transfer) switch. Serious damage to
the building’s electrical system may occur without this
transfer switch.

CAUTION: Equipment damage can result from low voltage

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 25

GENERATOR OUTPUTS
Generator Output Voltages

Generator Amperage

A wide range of voltages are available to supply voltage for
many different applications. Voltages are selected by using
the voltage selector switch (Figure 13). To obtain some of
the voltages as listed in Table 7 (see below) will require a
fine adjustment using the voltage regulator (VR) control
knob located on the control panel.

Table 8 shows the maximum amps the generator can
provide. DO NOT exceed the maximum amps as listed..

Voltage Selector Switch
The voltage selector switch (Figure 13) is located above
the output terminal panel’s Hard Wire Hook-up Panel. It
has been provided for ease of voltage selection.

Table 8. Generator Maximum Amps
Rated Voltage

Maximum Amps

1Ø 120 Volt

100 amps (4 wire)

1Ø 240 Volt

50 amps (4 wire)

3Ø 240 Volt

108 amps

3Ø 480 Volt

54 amps

GFCI Receptacle Load Capability
The load capability of the GFCI receptacles is directly
related to the voltage being supplied at either the output
terminals or the 2 twist lock auxiliary receptacles.
Tables 9 and 10 show what amount of current is available
at the GFCI receptacles when the output terminals and
twist lock receptacles are in use. Be careful that your load
does not to exceed the available current capability at the
receptacles.
Figure 13. Voltage Change-Over Board

Voltage Selector Switch Locking Button

Table 9. 1Ø GFCI Receptacle Load Capacity

26.0
24.8

Available Load
Current (Amps)
GFCI Duplex
5-20R 120V
0
5 amps/receptacle

23.6

10 amps/receptacle

22.4

15 amps/receptacle

21.2

20 amps/receptacle

KW in Use
Twist Lock (C6369)

The voltage selector switch has a locking button to protect
the generator and load from being switched while the
engine is running. To lock the voltage selector switch, press
and hold the red button located at the bottom of the switch.
CAUTION
NEVER change the position of the voltage selector
switch while the engine is running. ALWAYS place
circuit breaker in the OFF position before selecting
voltage.

1Ø 240/120V

Table 10. 3Ø GFCI Receptacle Load Capacity
KVA in Use
(UVWO Terminals)
3Ø 240/480V

Table 7. Voltages Available
Three Phase
(Switchable)

208V

220V

240V

416V

440V

480V

Single Phase
(Switchable)

120V

1127V

139V

240V

254V

277V

Available Load
Current (Amps)
GFCI Duplex
5-20R 120V

0 amps/receptacle

40.9

5 amps/receptacle

36.7

10 amps/receptacle

32.6

15 amps/receptacle

28.4

20 amps/receptacle

page 26 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

GENERATOR OUTPUTS/gauge reading
How to Read the Output Terminal Gauge

Reading Amperage

The AC ammeter and AC voltmeter change-over switches
on the control panel DO NOT effect the generator output.
They are provided to help observe how much power is being
supplied, produced at the UVWO terminals lugs.

To determine the amperage at a terminal lug, set the AC
Ammeter Change-Over Switch to the appropriate setting
(Figure 17) to activate the AC Ammeter Gauge (Figure 18)
and read the available amperage at the terminal lug.

Before taking a reading from either gauge, set the Voltage
Selector Switch (Figure 14) to the position which produces
the required voltage (For example, for 3Ø 240V, choose
the center 3Ø 240/139V position on the voltage selector
switch.)

For example, to measure the amperage at the U terminal
lug, set the AC Ammeter Change-Over Switch to U and
read the AC Ammeter Gauge.

Figure 17. AC Ammeter
Change-Over Switch

Figure 18. AC Ammeter
(Amp Reading on U Lug)

NOTICE
Figure 14. Voltage Selector Switch
240/139V 3Ø Positio

NOTICE

The ammeter gauge will only show a reading when
the Output Terminal Lugs are connected to a load
and in use.

For 3Ø 208V/1Ø,120V, place the Voltage Selector
Switch in the 3 Phase 240/139 position.

Reading Voltage
To determine the voltage between two terminal lugs, set
the AC Voltmeter Change-Over Switch to the appropriate
setting (Figure 15) to activate the AC Voltmeter Gauge
(Figure 16) and read the available voltage between the
two lugs.
For example, to measure the voltage between the W and U
terminal lugs, set the AC Voltmeter Change-Over Switch
to W-U and read the AC Voltmeter Gauge.

Figure 15. AC Voltmeter
Change-Over Switch

Figure 16. AC Voltmeter
Gauge

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 27

OUTPUT TERMINAL PANEL CONNECTIONS
UVWO Terminal Output Voltages
Various output voltages can be obtained using the UVWO
output terminal lugs. The voltages at the terminals are
dependent on the position of the Voltage Selector Switch
and the adjustment of the Voltage Regulator Control
Knob.
Remember the voltage selector switch determines the
range of the output voltage. The voltage regulator (VR)
allows the user to increase or decrease the selected
voltage.

3Ø-240/139 UVWO Terminal Output Voltages
1. Place the voltage selector switch in the 3Ø 240/139
position as shown in Figure 19..

Figure 19. Voltage Selector Switch
3Ø-240/139V Position

2. Connect the load wires to the UVWO terminals as
shown in Figure 20.

Figure 21. Voltage Regulator Knob

3Ø-208V/1Ø-120V UVWO Terminal Output Voltages
1. Place the voltage selector switch in the 3Ø 240/139
position as shown in Figure 22.

Figure 22. Voltage Selector Switch
3Ø-240/139V Position

2. Connect the load wires to the UVWO terminals as
shown in Figure 23.

Figure 23. UVWO Terminal Lugs
3Ø-208/1Ø-120V Connections Connections

NOTICE
Figure 20. UVWO Terminal Lugs
3Ø-240/139V Connections

To achieve a 3Ø 208V output the voltage selector switch
must be in the 3Ø-240/139 position and the voltage
regulator must be adjusted to 208V..

page 28 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

OUTPUT TERMINAL PANEL CONNECTIONS
3Ø-480/277V UVWO Terminal Output Voltages

1Ø-240/120V UVWO Terminal Output Voltages

1. Place the voltage selector switch in the 3Ø 480/277
position as shown in Figure 24.

1. Place the voltage selector switch in the 1Ø 240/120
position as shown in Figure 26.

Figure 24. Voltage Selector Switch
3Ø-480/277V Position

Figure 26. Voltage Selector Switch
1Ø-240/120V Position

2. Connect the load wires to the UVWO terminals as
shown in Figure 25.

2. Connect the load wires to the UVWO terminals as
shown in Figure 27.

Figure 25. UVWO Terminal Lugs
3Ø-440/254V Connections

Figure 27. UVWO Terminal Lugs
1Ø-200/100V Connections

3. Turn the voltage regulator knob (Figure 20) clockwise
to increase voltage output, turn counterclockwise
to decrease voltage output. Use voltage regulator
adjustment knob whenever fine tuning of the output
voltage is required.

3. Turn the voltage regulator knob (Figure 21) clockwise
to increase voltage output, turn counterclockwise to
decrease voltage output. Use voltage regulator
adjustment knob whenever fine tuning of the output
voltage is required.
NOTICE
ALWAYS make sure that the connections to the UVWO
terminals are secure and tight. The possibility of arcing
exists, that could cause a fire.

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 29

inspection/SETUP
Circuit Breakers
To protect the generator from an overload, a 3-pole, 110
amp, main circuit breaker is provided to protect the U,V,
and W Output Terminals from overload. In addition two
single-pole, 20 amp GFCI circuit breakers are provided to
protect the GFCI receptacles from overload. Three 50 amp
load circuit breakers have also been provided to protect the
auxiliary receptacles from overload. Make sure to switch
ALL circuit breakers to the OFF position prior to starting
the engine.

Lubrication Oil
Fill the engine crankcase with lubricating oil through the
filler hole, but DO NOT overfill. Make sure the generator is
level and verify that the oil level is maintained between the
two notches (Figure 28) on the dipstick. See Table 11 for
proper selection of engine oil.

Fuel Check
DANGER
Fuel spillage on a hot engine can cause
a fire or explosion. If fuel spillage occurs,
wipe up the spilled fuel completely to
prevent fire hazards. NEVER smoke
around or near the generator.

Refilling the Fuel System
CAUTION
ONLY properly trained personnel who have read
and understand this section should refill the fuel tank
system.
This generator has an internal fuel tank located inside
the trailer frame and may also be equipped with an
environmental fuel tank (Figure 29). ALWAYS fill the fuel
tanks with clean fresh #2 diesel fuel. DO NOT fill the fuel
tanks beyond their capacities.

Figure 28. Engine Oil Dipstick

When checking the engine oil, be sure to check if the oil is
clean. If the oil is not clean, drain the oil by removing the
oil drain plug, and refill with the specified amount of oil as
outlined in the ISUZU Engine Owner’s Manual. Oil should
be warm before draining.
Other types of motor oils may be substituted if they meet
the following requirements:
API Service Classification CC/SC
API Service Classification CC/SD
API Service Classification CC/SE
API Service Classification CC/SF

Pay attention to the fuel tank capacity when replenishing
fuel. The fuel tank cap must be closed tightly after filling.
Handle fuel in a safety container. If the container does not
have a spout, use a funnel. Wipe up any spilled fuel
immediately.

Table 11. Recommended Motor Oil
Figure 29. Internal Fuel Tank System

page 30 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

inspection/SETUP
Refueling Procedure:
WARNING

2. Open cabinet doors on the “right side” of the generator
(from generator control panel position). Remove fuel
cap and fill tank (Figure 31).

Diesel fuel and its vapors are dangerous
to your health and the surrounding
environment. Avoid skin contact and/or
inhaling fumes.
1. Level Tanks — Make sure fuel cells are level with the
ground. Failure to do so will cause fuel to spill from the
tank before reaching full capacity (Figure 30).
CAUTION
ALWAYS place trailer on firm level ground before
refueling to prevent spilling and maximize the amount
of fuel that can be pumped into the tank.

Figure 31. Fueling the Generator

3. NEVER overfill fuel tank — It is important to read the
fuel gauge when filling trailer fuel tank. DO NOT wait
for fuel to rise in filler neck (Figure 32).

Figure 30. Only Fill on Level Ground

NOTICE
ONLY use #2 diesel fuel when refueling.

Figure 32. Full Fuel Tank

CAUTION
DO NOT OVERFILL fuel system. Leave room for fuel
expansion. Fuel expands when heated (Figure 33).

Figure 33. Fuel Expansion

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 31

inspection/SETUP
Coolant (Antifreeze/Summer Coolant/
Water)
ISUZU recommends ISUZU antifreeze/summer coolant for
use in their engines, which can be purchased in concentrate
(and mixed with 50% demineralized water) or pre-diluted. See
the ISUZU Engine Owner’s Manual for further details.

Cleaning the Radiator
The engine may overheat if the radiator fins become
overloaded with dust or debris. Periodically clean the
radiator fins with compressed air. Cleaning inside the
machine is dangerous, so clean only with the engine turned
off and the negative battery terminal disconnected.

Air Cleaner

WARNING
If adding coolant/antifreeze mix to the
radiator, DO NOT remove the radiator cap
until the unit has completely cooled. The
possibility of hot! coolant exists which can
cause severe burns.
Day-to-day addition of coolant is done from the recovery
tank. When adding coolant to the radiator, DO NOT remove
the radiator cap until the unit has completely cooled. See
Table 12 for engine, radiator, and recovery tank coolant
capacities. Make sure the coolant level in the recovery tank
is always between the “H” and the “L” markings.

Periodic cleaning/replacement is necessary. Inspect it in
accordance with the ISUZU Engine Owner’s Manual.

Fan Belt Tension
A slack fan belt may contribute to overheating, or to
insufficient charging of the battery. Inspect the fan belt for
damage and wear and adjust it in accordance with the
ISUZU Engine Owner’s Manual.
The fan belt tension is proper if the fan belt bends 10 to 15
mm (Figure 34) when depressed with the thumb as shown
below.

Table 12. Coolant Capacity
Engine and Radiator
2.88 gal (10.9 liters)
Reserve Tank
2 quarts (1.9 liters)

Operation in Freezing Weather
When operating in freezing weather, be certain the proper
amount of antifreeze (Table 13) has been added.
Table 13. Anti-Freeze
Operating Temperatures
Freezing Point
Vol %

Anti-Freeze

°C

°F

-37

-34

Figure 34. Fan Belt Tension

CAUTION
NEVER place hands near the belts or fan
while the generator set is running.

NOTICE
When the antifreeze is mixed with water, the antifreeze
mixing ratio must be less than 50%.

page 32 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

inspection/SETUP
Battery

When connecting battery do the following:

This unit is of negative ground DO NOT connect in reverse.
Always maintain battery fluid level between the specified
marks. Battery life will be shortened, if the fluid level are
not properly maintained. Add only distilled water when
replenishment is necessary.

1. NEVER connect the battery cables to the battery
terminals when the MPEC Control Switch is in either
the MANUAL position. ALWAYS make sure that the
MPEC Control Switch is in the OFF/RESET position
when connecting the battery.

DO NOT over fill. Check to see whether the battery
cables are loose. Poor contact may result in poor starting
or malfunctions. Always keep the terminals firmly
tightened. Coating the terminals with an approved battery
terminal treatment compound. Replace battery with only
recommended type battery.

2. Place a small amount of battery terminal treatment
compound around both battery terminals. This will
ensure a good connection and will help prevent
corrosion around the battery terminals.

The battery is sufficiently charged if the specific gravity
of the battery fluid is 1.28 (at 68° F). If the specific gravity
should fall to 1.245 or lower, it indicates that the battery is
dead and needs to be recharged or replaced.
Before charging the battery with an external electric source,
be sure to disconnect the battery cables.

Battery Cable Installation
ALWAYS be sure the battery cables (Figure 35) are
properly connected to the battery terminals as shown below.
The red cable is connected to the positive terminal of the
battery, and the black cable is connected to the negative
terminal of the battery.
CAUTION
ALWAYS disconnect the negative terminal FIRST and
reconnect negative terminal LAST.

NOTICE
If the battery cable is connected incorrectly, electrical
damage to the generator will occur. Pay close attention to
the polarity of the battery when connecting the battery.
CAUTION
Inadequate battery connections may cause poor
starting of the generator, and create other malfunctions.

Alternator
The polarity of the alternator is negative grounding type.
When an inverted circuit connection takes place, the
circuit will be in short circuit instantaneously resulting the
alternator failure.
DO NOT put water directly on the alternator. Entry of water
into the alternator can cause corrosion and damage the
alternator.

Wiring
Inspect the entire generator for bad or worn electrical wiring
or connections. If any wiring or connections are exposed
(insulation missing) replace wiring immediately.

Piping and Hose Connection

Figure 35. Battery Connections

Inspect all piping, oil hose, and fuel hose connections for
wear and tightness. Tighten all hose clamps and check
hoses for leaks.
If any hose (fuel or oil) lines are defective replace them
immediately.

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 33

GENERATOR START-UP PROCEDURE
Before Starting

Starting

CAUTION
The engine’s exhaust contains harmful emissions.
ALWAYS have adequate ventilation when operating.
Direct exhaust away from nearby personnel.

1. Place the voltage selector switch in the desired
voltage position (Figure 38)..

WARNING
NEVER manually start the engine with the main, GFCI or
auxiliary circuit breakers in the ON (closed) position.
1. Place the main, G.F.C.I., and aux. circuit breakers (Figure
36) in the OFF position prior to starting the engine.
Figure 38. Voltage Selector Switch

Starting (Manual)
1. Place the engine speed switch (Figure 39) in the LOW
(down) position.

Figure 36. Main, Aux. and GFCI
Circuit Breakers (OFF)

2. Make sure the voltage change-over board has been
configured for the desired output voltage.
3. Connect the load to the receptacles or the output
terminal lugs as shown in Figure 10. These load
connection points can be found on the output terminal
panel and the output terminal panel’s hard wire hookup
panel.
4. Tighten terminal nuts securely to prevent load wires
from slipping out.
5. Close all engine enclosure doors (Figure 37).

CORRECT

Figure 39. Engine Speed Switch (Low)

2. Place the MPEC control switch in the MANUAL
position to start the engine (Figure 40).

Figure 40. MPEC Control Switch
(Manual Position)

3. Depending on the temperature of the coolant (cold
weather conditions), the pre-heat lamp (Figure 41) will
light (ON) and remain on until the pre-heating cycle has
been completed. After completion of the pre-heating
cycle, the light will go OFF and the engine will start up
automatically.

INCORRECT

Figure 37. Engine Enclosure Doors

Figure 41. Pre-Heat Lamp

page 34 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

GENERATOR START-UP PROCEDURE
4. Once the engine starts, let the engine run for 1-2
minutes. Listen for any abnormal noises. If any
abnormalities exist, shut down the engine and correct
the problem. If the engine is running smoothly, place
the engine speed switch (Figure 42) in the HIGH (up)
position.

Figure 42. Engine Speed Switch (High)

5. The generator’s frequency meter (Figure 43) should be
displaying the 60 cycle output frequency in HERTZ.

8. The engine oil pressure gauge (Figure 47) will indicate
the oil pressure of the engine. Under normal operating
conditions the oil pressure is approximately 42 to 71
psi. (290~490 kPa).

Figure 47. Oil Pressure Gauge

9. The coolant temperature gauge (Figure 48) will
indicate the coolant temperature. Under normal
operating conditions the coolant temperature should
be between 167°~203°F (75°~95°C) (Green Zone).

Figure 43. Frequency Meter

6. The generator’s AC-voltmeter (Figure 44) will display
the generator’s output in VOLTS. If the voltage is not
within the specified tolerance, use the voltage
adjustment control knob (Figure 45) to increase or
decrease the desired voltage.

Figure 48. Coolant Temperature Gauge

10. The tachometer gauge (Figure 49) will indicate the
speed of the engine when the generator is operating.
Under normal operating conditions this speed is
approximately 1800 RPM’s.

Figure 44. Voltmeter
Figure 49. Engine Tachometer Gauge

Figure 45. Voltage Adjust Control Knob

7. The ammeter (Figure 46) will indicate zero amps with
no load applied. When a load is applied, the ammeter
will indicate the amount of current that the load is
drawing from the generator.

Figure 46. Ammeter (No Load)

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 35

GENERATOR SHUT-DOWN PROCEDURES
11. Place the main, GFCI, and aux. circuit breakers in the
ON position (Figure 50).

2. Place the engine speed switch (Figure 53) in the “LOW”
(down) position..

Figure 53. Ignition Switch (Normal)

Figure 50. Main, Aux. and GFCI
Circuit Breakers (ON)

12. Observe the generator’s ammeter (Figure 51) and
verify it reads the anticipated amount of current with
respect to the load. The ammeter will only display a
current reading if a load is in use.

3. Let the engine cool by running it at low speed for 3-5
minutes with no load applied.
4. Place the MPEC Control Switch (Figure 54) to the
OFF/RESET position.

Figure 54. MPEC Control Switch (Off/Reset)

5. Verify that all status LEDs on the MPEC display are
OFF (not lit).
Figure 51. Ammeter (Load)

13. The generator will run until manually stopped or an
abnormal condition occurs.
WARNING
NEVER stop the engine suddenly except in an
emergency.

Normal Shutdown Procedure

6. Remove all loads from the generator.
7. Inspect entire generator for any damage or loosening
of components that may have occurred during
operation.

Emergency Shutdown Procedure
1. Place the MPEC Control Switch (Figure 54) in the
OFF/RESET position.

To shutdown the generator, use the following procedure:
1. Place both the MAIN, GFCI and LOAD circuit breakers
as shown in Figure 52 to the OFF position..

Figure 52. Main, GFCI and Load
Circuit Breakers Off

page 36 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

Maintenance
10 Hrs
DAILY
X
X
X
X
X
X

Table 14. Inspection/Maintenance

Engine

Generator

Check Engine Fluid Levels
Check Air Cleaner
Check Battery Acid Level
Check Fan Belt Condition
Check for Leaks
Check for Loosening of Parts
Replace Engine Oil and Filter * 1
Clean Air Filter
Check Fuel Filter/Water Separator Bowl
Clean Unit, Inside and Outside
Change Fuel Filter
Clean Radiator and Check Coolant Protection Level*2
Replace Air Filter Element * 3
Check all Hoses and Clamps * 4
Clean Inside of Fuel Tank
Measure Insulation Resistance Over 3M ohms
Check Rotor Rear Support Bearing

250 Hrs

500 Hrs

1000
Hrs

X
X
X
X
X
X
X
X
X
X
X

*1 Replace engine oil and filter at 100 hours, first time only.
*2 Add “Supplemental Coolant Additives (SCA’S)” to recharge the engine coolant.
*3 Replace primary air filter element when restriction indicator shows a vacuum of 625 mm (25 in. H20).
*4 If blowby hose needs to be replaced, ensure that the slope of the blowby hose is at least a 1/2 inch per foot,
with no sags or dips that could collect moisture and/or oil.

General Inspection
Prior to each use, the generator should be cleaned and
inspected for deficiencies. Check for loose, missing or
damaged nuts, bolts or other fasteners. Also check for
fuel, oil, and coolant leaks. Use Table 14 as a general
maintenance guideline. Engine Side, refer to the Engine
Instruction Manual.

Air Cleaner
Every 250 hours: Remove air cleaner element (Figure 55)
and clean the heavy duty paper element with light spray of
compressed air. Replace the air cleaner as needed.

Air Cleaner with Dust Indicator
This indicator (Figure 55) is attached to the air cleaner.
When the air cleaner element is clogged, air intake
restriction becomes greater and the dust indicator signal
shows RED meaning the element needs changing or
service. After changing the air element, press the dust
indicator button to reset the indicator.

Figure 55. Air Cleaner/Indicator

NOTICE
The air filter should not be changed until the indicator
reads “RED”. Dispose of old air filter. It may not be
cleaned or reused.

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 37

Maintenance
If the engine is operating in very dusty or dry grass
conditions, a clogged air cleaner will result. This can lead to
a loss of power, excessive carbon buildup in the combustion
chamber and high fuel consumption. Change air cleaner
more frequently if these conditions exists.

Fuel Addition
Add diesel fuel (the grade may vary according to season
and locations).

Removing Water from the Fuel Tank
After prolonged use, water and other impurities accumulate
in the bottom of the tank. Occasionally inspect the fuel
tank for water contamination and drain the contents if
required.
During cold weather, the more empty volume inside the
tank, the easier it is for water to condense. This can be
reduced by keeping the tank full with diesel fuel.

Cleaning Inside the Fuel Tank
If necessary, drain the fuel inside the fuel tank completely.
Using a spray washer (Figure 56) wash out any deposits
or debris that have accumulated inside the fuel tank.

Fuel Tank Inspection
In addition to cleaning the fuel tank, the following
components should be inspected for wear:
Rubber Suspension — look for signs of wear or
deformity due to contact with oil. Replace the rubber
suspension if necessary.
Fuel Hoses — inspect nylon and rubber hoses for signs
of wear, deterioration and hardening.
Fuel Tank Lining — inspect the fuel tank lining for signs
of excessive amounts of oil or other foreign matter.

Replacing Fuel Filter
Replace the fuel filter cartridge with new one every 500
hours or so.
Loosen the drain plug at the lower top of the fuel filter.
Drain the fuel in the fuel body together with the mixed
water. DO NOT spill the fuel during disassembly.
Vent any air

Air Removal
If air enters the fuel injection system of a diesel engine,
starting becomes impossible. After running out of fuel,
or after disassembling the fuel system, bleed the system
according to the following procedure. See the ISUZU
Engine Manual for details.
To restart after running out of fuel, turn the switch to the
“ON” position for 15-30 seconds. Try again, if needed.

Figure 56. Fuel Tank Cleaning

page 38 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

Maintenance
Check Oil Level

Radiator Cleaning

Check the crankcase oil level prior to each use, or when the
fuel tank is filled. Insufficient oil may cause severe damage
to the engine. Make sure the generator is level. The oil
level must be between the two notches on the dipstick as
shown in Figure 28.

The radiator (Figure 57) should be sprayed (cleaned) with
a high pressure washer when excessive amounts of dirt
and debris have accumulated on the cooling fins or tube.
When using a high pressure washer, stand at least 5 feet
(1.5 meters) away from the radiator to prevent damage to
the fins and tube.

Replacing Oil Filter
Remove the old oil filter.
Apply a film of oil to the gasket on the new oil filter.
Install the new oil filter.
After the oil cartridge has been replaced, the engine oil
will drop slightly. Run the engine for a while and check for
leaks before adding more oil if needed. Clean excessive
oil from engine.

Flushing Out Radiator and Replacing
Coolant
Open both cocks located at the crankcase side and at
the lower part of the radiator and drain coolant. Open
the radiator cap while draining. Remove the overflow
tank and drain.
Check hoses for softening and kinks. Check clamps for
signs of leakage.

Figure 57. Radiator Cleaning

Generator Storage
For long term storage of the generator the following is
recommended:

Tighten both cocks and replace the overflow tank.

Drain the fuel tank completely. Treat with a fuel stabilizer
if necessary.

Replace with coolant as recommended by the engine
manufacturer.

Completely drain the oil from the crankcase and refill if
necessary with fresh oil.

Close radiator cap tightly.

Clean the entire generator, internal and external.

Flush the radiator by running clean tap water through
radiator until signs of rust and dirt are removed. DO
NOT clean radiator core with any objects, such as a
screwdriver.

Cover the generating set and store in a clean, dry place.

WARNING
Allow engine to cool when flushing out
radiator. Flushing the radiator while hot
could cause serious burns from water or
steam.

Disconnect the battery.
Make sure engine coolant is at proper level.
If generator is mounted on a trailer, jack trailer up and
place on blocks so tires do not touch the ground or block
and completely remove the tires.

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 39

Trailer Maintenance
Trailer Maintenance
This section is intended to provide the user with generic
trailer service and maintenance information. The service
and maintenance guidelines referenced in this section refer
to a wide range of trailers.
Remember periodic inspection of the trailer will ensure safe
towing of the generator and will prevent personal injury and
damage to the equipment.
The definitions below describe some of the major
components of a typical trailer that would be used with
generator.
1. Fuel Cell — Provides an adequate amount of fuel for
the equipment in use. Fuel cells must be empty when
transporting equipment.
2. Braking System — System employed in stopping
the trailer. Typical braking systems are electric, surge,
hydraulic, hydraulic-surge and air.
3. GVWR — Gross Vehicle Weight Rating (GVWR) is
the maximum number of pounds the trailer can carry,
including the fuel cell (empty).
4. Frame Length — Measurement is from the ball hitch
to the rear bumper (reflector).
5. Frame Width — Measurement is from fender to
fender
6. Jack Stand — Trailer support device with maximum
pound requirement from the tongue of the trailer.
7. Coupler — Type of hitch used on the trailer for
towing.

8. Tire Size — Indicates the diameter of the tire in
inches (10,12,14, etc.), and the width in millimeters
(175,185,205, etc.). The tire diameter must match the
diameter of the tire rim.
9. Tire Ply — The tire ply (layers) number is rated in
letters; 2-ply,4-ply,6-ply, etc.
10. Wheel Hub — The wheel hub is connected to the
trailer’s axle.
11. Tire Rim — Tires mounted on a tire rim. The tire rim
must match the size of the tire.
12. Lug Nuts — Used to secure the wheel to the wheel
hub. Always use a torque wrench to tighten down
the lug nuts. See Table 18 and Figure 60 for lug nut
tightening and sequence.
13. Axle — Indicates the maximum weight the axle can
support in pounds, and the diameter of the axle
expressed in inches. Please note that some trailers
have a double axle. This will be shown as 2-6000 lbs.,
meaning two axles with a total weight capacity of 6000
pounds.
14. Suspension — Protects the trailer chassis from shocks
transmitted through the wheels. Types of suspension
used are leaf, Q-flex, and air ride.
15. Electrical — Electrical connectors (looms) are provided
with the trailer so the brake lights and turn signals can
be connected to the towing vehicle.
16. Application — Indicates which units can be employed
on a particular trailer.

page 40 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

Trailer Maintenance
Brakes

Hydraulic Surge Brakes

Trailer brakes should be inspected the first 200 miles of
operation. This will allow the brake shoes and drums to seat
properly. After the first 200 mile interval, inspect the brakes
every 3,000 miles. If driving over rough terrain, inspect the
brakes more frequently.
Figure 58 displays the major hydraulic surge brake
components that will require inspection and maintenance.
Please inspect these components as required using steps
1 through 8 and Table 15 as listed below:

Hydraulic surge brakes (Figure 58) should not require any
special attention with the exception of routine maintenance
such as shoe and lining replacement. Brake lines should
be periodically checked for cracks, kinks, or blockage.

Brake Adjustment
1. Place the trailer on jack stands. Make sure the jack
stands are placed on secure level ground.
2. Check the wheel and drum for free rotation.
3. Remove the adjusting hole cover from the adjusting
slot at the bottom brake backing plate.
4. With a screwdriver or standard adjusting tool, rotate
the star wheel of the adjuster assembly to expand the
brake shoes.
5. Adjust the brake shoes outward until the pressure of
the lining against the wheel drum makes the wheel
difficult to turn.
6. Adjust, rotate the star wheel in the opposite direction
until the wheel rotates freely with slight lining drag.
7. Replace the adjusting hole cover and lower the trailer
to the ground.
8. Repeat steps 1 through 7 on the remaining brakes.

Figure 58. Hydraulic Brake Components

Actuator
Hydraulic surge braking requires the installation of an
actuator at the tongue of the trailer. Remember the surge
or push of the trailer toward the tow vehicle automatically
synchronizes the trailer brakes with the tow vehicle brakes.
As the trailer pushes against the tow vehicle the actuator
telescopes together and applies force to the master cylinder,
supplying hydraulic pressure to the trailer brakes.
Periodically check and test the surge “actuator” to make sure that
it is functioning correctly. Never use an undersize actuator.

Table 15. Hydraulic Brake Troubleshooting
Symptom

Possible Cause

Solution

No Brakes

Brake line broken or kinked?

Repair or replace.

Brake lining glazed?

Reburnish or replace.

Weak Brakes or Brakes Pull to
One Side

Locking Brakes

Noisy Brakes

Dragging Brakes

Trailer overloaded?

Correct weight.

Brake drums scored or grooved?

Machine or replace.

Tire pressure correct?

Inflate all tires equally.

Tires unmatched on the same axle?

Match tires.

Brake components loose, bent or
broken?

Replace components.

Brake drums out-of-round?

Replace.

System lubricated?

Lubricate.

Brake components correct?

Replace and correct.

Brake lining thickness incorrect or
not adjusted correctly?

Install new shoes and
linings.

Enough brake fluid or correct fluid?

Replace rubber parts
fill with dot 4 fluid.

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 41

Trailer Maintenance
Tires/Wheels/Lug Nuts

Suspension

Tires and wheels are a very important and critical
components of the trailer. When specifying or replacing the
trailer wheels it is important the wheels, tires, and axle are
properly matched.

The leaf suspension springs and associated components
(Figure 59) should be visually inspected every 6,000 miles
for signs of excessive wear, elongation of bolt holes, and
loosening of fasteners. Replace all damaged parts
(suspension) immediately. Torqued suspension components
as detailed in Table 17.

CAUTION
ALWAYS wear safety glasses when
removing or installing force fitted parts.
Failure to comply may result in serious
injury.
CAUTION
DO NOT attempt to repair or modify a
wheel. DO NOT install in inner tube to
correct a leak through the rim. If the rim is
cracked, the air pressure in the inner tube
may cause pieces of the rim to explode (break off) with
great force and cause serious eye or bodily injury.

Figure 59. Major Suspension Components

Tire Wear/Inflation
Tire inflation pressure is the most important factor in tire
life. Pressure should be checked cold before operation DO
NOT bleed air from tires when they are hot!. Check inflation
pressure weekly during use to insure the maximum tire life
and tread wear.
Table 16 (Tire Wear Troubleshooting) will help pinpoint the
causes and solutions of tire wear problems.
Table 16. Tire Wear Troubleshooting

Spring Eye Bolt

Wear Pattern

Cause

Item

Torque (Ft.-Lbs.)

3/8" U-Bolt

Min-30 Max-35

7/16" U-Bolt

Min-45 Max-60

1/2" U-Bolt

Min-45 Max-60

Shackle Bolt

Snug fit only. Parts must rotate freely.
Locking nuts or cotter pins are
provided to retain nut-bolt assembly.

Solution

Shoulder Type
Shackle Bolt

Center Wear

Over inflation.

Adjust pressure to particular
load per tire manufacturer.

Edge Wear

Under inflation.

Adjust pressure to particular
load per tire manufacturer.

Side Wear

Loss of camber
or overloading.

Make sure load does not
exceed axle rating.
Align wheels.

Toe Wear

Incorrect toe-in.

Align wheels.

Cupping

Out-of-balance.

Check bearing adjustment
and balance tires.

Wheel lockup and
tire skidding.

Avoid sudden stops when
possible and adjust brakes.

Flat Spots

Table 17. Suspension Torque Requirements

Min-30 Max-50

page 42 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

Trailer Maintenance
Lug Nut Torque Requirements
It is extremely important to apply and maintain proper wheel
mounting torque on the trailer. Be sure to use only the
fasteners matched to the cone angle of the wheel. Proper
procedure for attachment of the wheels is as follows:
1. Start all wheel lug nuts by hand.
2. Torque all lug nuts in sequence (see Figure 60). DO
NOT torque the wheel lug nuts all the way down.
Tighten each lug nut in 3 separate passes as defined
by Table 18.
3. After first road use, retorque all lug nuts in sequence.
Check all wheel lug nuts periodically.
Table 18. Tire Torque Requirements
Wheel Size

First Pass
FT-LBS

Second Pass
FT-LBS

Third Pass
FT-LBS

12"

20-25

35-40

50-65

13"

20-25

35-40

50-65

14"

20-25

50-60

90-120

15"

20-25

50-60

90-120

16"

20-25

50-60

90-120

Figure 60. Wheel Lug Nuts
Tightening Sequence

NOTICE
NEVER use an pneumatic air gun to tighten wheel
lug nuts.

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 43

Trailer Wiring Diagram

Figure 61. Trailer/Towing Vehicle Wiring Diagram

page 44 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

Generator Wiring Diagram

Figure 62. Generator Wiring Diagram

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 45

Engine Wiring Diagram

Figure 63. Engine Wiring Diagram

page 46 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

controller Wiring Diagram

Figure 64. Controller Wiring Diagram

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 47

Troubleshooting (Generator)
Practically all breakdowns can be prevented by proper handling and maintenance inspections, but in the event of a
breakdown, use Table 19 shown below for diagnosis of the Generator. If the problem cannot be remedied, consult our
company’s business office or service plant.
Symptom

No Voltage Output

Low Voltage Output
High Voltage Output

Circuit Breaker Tripped

Table 19. Generator Troubleshooting
Possible Problem
Solution
AC Voltmeter defective?
Check output voltage using a voltmeter.
Is wiring connection loose?
Check wiring and repair.
Is AVR defective?
Replace if necessary.
Defective Rotating Rectifier? Check and replace.
Defective Exciter Field?
Check for approximately 17.3 ohms across J & K on CN1
Is engine speed correct?
Turn engine throttle lever to “High”.
Is wiring connections loose? Check wiring and repair.
Defective AVR?
Replace if necessary.
Is wiring connections loose? Check wiring and repair.
Defective AVR?
Replace if necessary.
Short Circuit in load?
Check load and repair.
Over current?
Confirm load requirements and reduce.
Defective circuit breaker?
Check and replace.
Over current Relay actuated? Confirm load requirement and replace.

page 48 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

Troubleshooting (Diagnostic lamp)
The engine controller of this generator diagnoses problems
that arise from the engine control system and the engine
itself. Press the diagnostic button (Figure 65) on the
diagnostic panel to determine if an engine malfunction has
occurred.

Figure 65. Diagnostic Panel

Method of Operation
1. Normally, the diagnostic lamp will be dimly lit when
the MPEC Control Switch is placed in the MANUAL
position.
2. If engine trouble occurs, the diagnostic lamp will be
brightly lit as long as the control switch is left in the
manual position.
3. The diagnostic lamp will indicate that an engine
malfunction has occurred.
NOTICE
For a complete understanding of error codes and
troubleshooting procedures, refer to the enclosed
engine instruction manual.
NOTICE
If the engine is cranked while the diagnostic switch is in
the “ON” position, the engine will not be stopped even if
the starter switch is turned to the “OFF” position. In such
case, turn the diagnostic switch to the “OFF” position.

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 49

Explanation of Code in Remarks Column
The following section explains the different symbols and
remarks used in the Parts section of this manual. Use the
help numbers found on the back page of the manual if there
are any questions.
NOTICE
The contents and part numbers listed in the parts
section are subject to change without notice. Multiquip
does not guarantee the availability of the parts listed.

Sample partS lISt
no.
1
2%
2%
3
4

part no. part name
QtY. remarKS
12345
BOLT .....................1 .....INCLUDES ITEMS W/%
WASHER, 1/4 IN. ..........NOT SOLD SEPARATELY
12347
WASHER, 3/8 IN. ..1 .....MQ-45T ONLY
12348
HOSE ..................A/R ...MAKE LOCALLY
12349
BEARING ..............1 .....S/N 2345B AND ABOVE

no. Column

QtY. Column
Numbers Used — Item quantity can be indicated by a
number, a blank entry, or A/R.
A/R (As Required) is generally used for hoses or other
parts that are sold in bulk and cut to length.
A blank entry generally indicates that the item is not sold
separately. Other entries will be clarified in the “Remarks”
Column.

remarKS Column
Some of the most common notes found in the “Remarks”
Column are listed below. Other additional notes needed
to describe the item can also be shown.
assembly/Kit — All items on the parts list with the
same unique symbol will be included when this item is
purchased.

Unique Symbols — All items with same unique
symbol

Indicated by:
“INCLUDES ITEMS W/(unique symbol)”

(@, #, +, %, or >) in the number column belong to the
same assembly or kit, which is indicated by a note in the
“Remarks” column.

Serial Number Break — Used to list an effective serial
number range where a particular part is used.

Duplicate Item Numbers — Duplicate numbers indicate
multiple part numbers, which are in effect for the same
general item, such as different size saw blade guards in
use or a part that has been updated on newer versions
of the same machine.
NOTICE
When ordering a part that has more than one item
number listed, check the remarks column for help in
determining the proper part to order.

part no. Column
Numbers Used — Part numbers can be indicated by a
number, a blank entry, or TBD.
TBD (To Be Determined) is generally used to show a
part that has not been assigned a formal part number
at the time of publication.
A blank entry generally indicates that the item is not sold
separately or is not sold by Multiquip. Other entries will
be clarified in the “Remarks” Column.

Indicated by:
“S/N XXXXX AND BELOW”
“S/N XXXX AND ABOVE”
“S/N XXXX TO S/N XXX”
Specific model number Use — Indicates that the part
is used only with the specific model number or model
number variant listed. It can also be used to show a
part is NOT used on a specific model or model number
variant.
Indicated by:
“XXXXX ONLY”
“NOT USED ON XXXX”
“make/obtain locally” — Indicates that the part can
be purchased at any hardware shop or made out of
available items. Examples include battery cables, shims,
and certain washers and nuts.
“Not Sold Separately” — Indicates that an item cannot
be purchased as a separate item and is either part of an
assembly/kit that can be purchased, or is not available
for sale through Multiquip.

page 50 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

Suggested Spare Parts
dca45SSIU4 WHISPERWATT GENERATOR with
ISUZU 4JJ1T DIESEL engine
1 to 3 units
Qty. P/N
Description
5............8980188580...........FILTER, OIL
5............8980088400...........element, fuel filter, main
5............8980758540...........element, fuel filter, pre
5............8980714010...........fuel filter feed pump
3............0602046366...........ELEMENT, AIR
1............8980388550...........BELT, FAN
1............0602122272...........UNIT, OIL PRESSURE
1............0602123261...........UNIT, WATER TEMPERATURE
1............8121468300...........SEnsor, WATER temp (ENGINE SIDE)
1............8980274560...........Sensor, OIL pressure (ENGINE SIDE)
1............1096300850...........gasket, sensor oil pressure (engine side)
1............m1310501403........radiator hose, upper
1............m1310501503........radiator hose, lower
1............0601806671...........fuse, 15 amp
1............0601806644...........fuse, 30 amp
1............0601806640...........fuse, 65 amp
1............0601810245...........bulb, alarm lamp
1............0601820602...........automatic voltage regulator
1............0601808803...........circuit breaker 1p, 20 amp
1............0601808804...........circuit breaker 2p, 50 amp
1............8971256001...........switch, warning, overheat (engine side)
NOTICE
Part number on this Suggested Spare Parts list may
supersede/replace the P/N shown in the text pages of
this book.

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 51

GENERATOR ASSY.

page 52 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

GENERATOR ASSY.
NO. PART NO.
1
B3110001102
1-1
1-2 0601820083
1-3 0601822664
1-4
B3120100804
1-5
B3120100604
1-6
B3120100704
1-7 B3111100603
1-8
B2163100004
1-9
0010304016
1-9 A B2163700004
1-9 B 0204004000
1-10 B3163200104
1-11 0342612030
1-12 0046512000
1-13 0071906309
2
0010310020
3
0042510000
4
B3130000903
4-1 0845041904
5
B3137000803
6
0016008060
7
0042508000
8
B3153000513
9
0017108035
10 B3153400504
11
B3153400404
12
0017106016
13
0010310025
14
0042510000
15
B5131300004
16
0340406040
17 0600815000
18
0041206000
19
B3131300804
20
0029205012
21
0041205000
22
0605000455
23
0030012000
23 A 0040012000
23 B 0041212000

PART NAME
QTY.
REMARKS
ROTOR ASSY
1
FIELD ASSY
1
RECTIFIER
3
ZNR
1
HOLDER, ZNR
1
INSULATOR WASHER
3
INSULATOR WASHER
5
FAN
1
COUPLING DISK..................................3............PURCHASE ITEMS 1 - 9 AS A SET
HEX HEAD BOLT
BALANCING WEIGHT
U-NUT
COUPLING WASHER
2
HEX SOCKET HD CAP SCREW
6
WASHER, FLAT
6
BEARING
1
HEX HEAD BOLT
8
WASHER, LOCK
8
STATOR ASSY
1
GROMMET
2
FIELD ASSY EXCITER
1
HEX SOCKET HD CAP SCREW
4
WASHER, LOCK
4
END BRACKET
1
HEX HEAD BOLT
6
PACKING
1
COVER, BEARING
1
HEX HEAD BOLT
3
HEX HEAD BOLT
12
WASHER, LOCK
12
COVER, END BRACKET
1
HEX HEAD BOLT
1
NUT
1
WASHER, FLAT
1
COVER, END BRACKET
1
MACHINE SCREW
4
WASHER, FLAT
4
RUBBER SUSPENSION
2
HEX NUT
2
WASHER, LOCK
1
WASHER, FLAT
2

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 53

control box ASSY.

page 54 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

control box ASSY.
NO. PART NO.
1
M1213001302
1-1 0330000185
1-2 0330000415
1-3 0330000165
1-4 0330000185
2
0601870431
2-1
0601870490
3
0021004040
4
0601823863
5
0027104016
6
0601820602
7
0027105016
8
0601801123
9
0027106020
10
0601820847
11
0601820848
12
0027104020
12A 0207004000
13
M1260500104
14
0016906016
15
0601802218
15A 0601806671
16
0027103020
17
LY-2D DC12V
17A PTF08A
17B PYCA1
18
0027104020
19 0601815153
20
0027104016
21
8121468300
22 8980980760
23 M3260500604
24
0016906016
25
0601831205
26
0601831330
27
0016906016
28 0601823240
29
0027105020
30
8972177780
31
M2260600104
32
0027105016
33
0027105016

PART NAME
QTY.
REMARKS
CONTROL BOX
1
EDGING
2
EDGING
1
EDGING
1
EDGING
1
CIRCUIT BREAKER, 3P 110A
1
COVER, CIRCUIT BREAKER
2
MACHINE SCREW
4
RELAY UNIT
2
MACHINE SCREW
4
AUTOMATIC VOLTAGE REGULATOR
1
MACHINE SCREW
4
CURRENT TRANSFORMER, 150/5A
3
MACHINE SCREW
6
OVER CURRENT RELAY
1
OVER CURRENT RELAY
1
MACHINE SCREW
2
HEX NUT
2
SET PANEL, ELECTRIC PARTS
1
HEX HEAD BOLT
4
HOLDER, FUSE
1
FUSE, 15A
3
MACHINE SCREW
1
RELAY..........................................................2.................REPLACES P/N 0601827656
BASE............................................................2.................REPLACES P/N 0601823109
CLIP.............................................................4.................REPLACES P/N 0601824400
MACHINE SCREW
4
TERMINAL
1
MACHINE SCREW
2
SENSOR, INLET AIR TEMPERATURE.......1.................REPLACES P/N 0603210240
CONTROLLER.............................................1.................REPLACES P/N 0602202688
BRACKET
1
HEX HEAD BOLT
4
PUSH BUTTON SWITCH
1
DIAGNOSTIC SWITCH
1
HEX HEAD BOLT
4
RECTIFIER
1
MACHINE SCREW
1
SENSOR, BAROMETRIC PRESSURE.......1.................REPLACES P/N 0602130220
BRACKET, SENSOR
1
MACHINE SCREW
2
MACNINE SCREW
2

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 55

control box ASSY.

page 56 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

control box ASSY.
NO. PART NO.
34
8942481610
35
8970119490
36
0027105016
37 5825500290
38
0027105016
39
M1213500704
40
0016906016
41
M1270100204
41A M1550003104
41B M1550003204
42
M1213601204
43
M1213601104
43-1 0330000075
43-2 0330000050
44
0021104035
44A 0207004000
45
0027104016
45A 0207004000
46
0016906016
47
M1213602604
48
0016906016
49
M1213602704
49-1 0317700180
50
0016906016
51
0016906016
51A 0040506000
52
M1223000903
53
0601807641
54
0601808986
55
0601801040
56
0601806859
57
0601801041
58
0601840073
59 0601840121
60
0602202641
61
0021004040
61A 0207004000
62 0601831340
63
0602103092
63A 0601810245
64 0602120095
65
0602122093
66
0602123090
67
0602121081
68
060212590

PART NAME
QTY.
REMARKS
RELAY, STARTER........................................1.................REPLACES P/N 0602202502
RELAY, SLOW PLUG...................................1.................REPLACES P/N 0602202685
MACHINE SCREW
4
RELAY..........................................................3.................REPLACES P/N 0602201400
MACHINE SCREW
3
CONTROL BOX COVER
1
HEX HEAD BOLT
4
SELECTOR SWITCH
1
DECAL : SELECTOR SW. NO.
1
DECAL : SELECTOR SW. NO.
1
SWITCH BRACKET
1
SWITCH BRACKET
1
EDGING
1
EDGING
1
MACHINE SCREW
4
HEX NUT
4
MACHINE SCREW
4
HEX NUT
4
HEX HEAD BOLT
4
SWITCH COVER
1
HEX HEAD BOLT
8
SWITCH COVER
1
SEAL RUBBER
1
HEX HEAD BOLT
2
HEX HEAD BOLT
12
TOOTHED WASHER
1
CONTROL PANEL
1
FREQUENCY METER, 45~65Hz, 240V 1
AC AMMETER, 0~75A/150A:5A
1
CHANGE-OVER SW., AMMETER
1
AC VOLTMETER, O~600V
1
CHANGE-OVER SW., VOLTMETER
1
RHEOSTAT (VR), 2W 1K OHM
1
KNOB
1
CONTROLLER, ECU(CAN77)
1
MACHINE SCREW
2
HEX NUT
2
SWITCH
1
ALARM LAMP
2
BULB, DC18V
2
TACHOMETER
1
OIL PRESSURE GAUGE
1
WATER TEMPERATURE GAUGE
1
CHARGING AMMETER
1
FUEL GAUGE
1

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 57

control box ASSY.

page 58 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

control box ASSY.
NO. PART NO.
69
0601810141
70
0601831330
71
0601831395
72 M1224100104
73
0027105010
74
0027105010
75
M9220100004
76
0080200007
77
0602122272
78 M9200100004
79
0130000000
80
0304300050
81
0602120465
82
M2357202104
82A 0601806644
83
0601806640
84
M1246703404
85
M1357201602
86
M2357201802

PART NAME
PANEL LIGHT
SWITCH, PANEL LIGHT
SWITCH, ENGINE SPEED
STOPPER
MACHINE SCREW
MACHINE SCREW
SET SCREW
SNAP RING
UNIT, OIL PRESSURE
ADAPTER
ELBOW, 1/8"
LONG NIPPLE
PICK UP, TACHOMETER
FUSE HOLDER UNIT
FUSE, 30A
FUSE, 65A
WIRE HARNESS, GENERATOR
WIRE HARNESS, ENGINE
WIRE HARNESS, CONTROLLER

QTY.
1
1
1
1
2
4
2
2
1
1
1
1
1
1
1
1
1
1
1

REMARKS

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 59

ENGINE AND RADIATOR ASSY.

page 60 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

ENGINE AND RADIATOR ASSY.
NO. PART NO.
1
M1923200134
1A
8980388550
1-1
8980188580
2
0605000451
3 M2413800104
4
0030010000
5
0040010000
6
0042810000
7 M1923200064
7-1
0602011029
7-2
M1493105204
8 M9200100904
9 0150000016
10
0016908020
11
M1310501403
12
M1310501503
13
0165515147
14
M1310300903
15
0016908020
16
M1310300504
17
M1310300604
18
0016908020
19
0602046585
19A 0602046366
20
0602040651
21
0602040557
22
0016908030
23
M1373101204
24
M1373101304
25
M1326100104
26
0605515199
27
0605515225
28
0269200600
29
0605515198
30 0602022571
31
0602022561
32 0603306590
33 0603300285
34 0605511395
35
0603306395
36 0602021070
37
0269200500
38
M9602000003
39 M9200200004
40 0150000018

PART NAME
QTY.
REMARKS
ENGINE, ISUZU 4JJ1T
1
FAN BELT.....................................................1.................REPLACES P/N 0602015255
CARTRIDGE, OIL FILTER...........................1.................REPLACES P/N 0602041222
RUBBER SUSPENSION
2
COLLAR
2
HEX NUT
2
WASHER, LOCK
2
WASHER, FLAT
2
RADIATOR
1
CAP, RADIATOR
1
ACOUSTIC SHEET
2
PLUG
1
O-RING
1
HEX HEAD BOLT
6
RADIATOR HOSE
1
RADIATOR HOSE
1
HOSE BAND
4
FAN GUARD
1
HEX HEAD BOLT
4
FAN GUARD
1
FAN GUARD
1
HEX HEAD BOLT
6
AIR CLEANER
1
ELEMENT, AIR CLEANER
1
INDICATOR, AIR CLEANER
1
BRACKET, AIR CLEANER
1
HEX HEAD BOLT
2
HOSE, AIR CLEANER
1
HOSE, AIR CLEANER
1
PIPE, BLOWBY
1
HOSE BAND
1
HOSE BAND
3
BLOWBY HOSE
1
HOSE BAND
2
ADAPTER
1
90 DEGREE ELBOW
1
CONNECTOR
1
ROCKNUT
1
VALVE
1
HOSE JOINT
1
CAP
1
DRAIN HOSE
1
DRAIN JOINT
1
PLUG
1
O-RING
1

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 61

ENGINE AND RADIATOR ASSY. (continued)

page 62 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

ENGINE AND RADIATOR ASSY. (continued)
NO. PART NO.
41
0016906020
42
0199900550
43
0199900150
44
0605515106
45
M9300000003
46
M9300100003
47 0199100215
48
M1317100004
49
0016908020
50 0199100800
51 0193601300
52
0605515106
53 0602220910
54
0016908020
55
8121468300
56
8971256001
57
8980274560
58
1096300850

PART NAME
HEX HEAD BOLT
DRAIN HOSE
DRAIN HOSE
HOSE BAND
RESERVE TANK
CAP, RESERVE TANK
HOSE
BRACKET, RESERVE TANK
HEXHEAD BOLT
HOSE
HOSE
HOSE BAND
CLAMP
HEX HEAD BOLT
SENSOR, TEMP
SWITCH, WARNING OVERHEAT
SENSOR, OIL PRESSURE
GASKET, OIL PRESSURE SENSOR

QTY.
2
1
1
2
1
1
1
1
1
1
1
2
2
2
1
1
1
1

REMARKS

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 63

OUTPUT TERMINAL ASSY.

ADD THE FOLLOWING DIGITS AFTER THE PART
NUMBER WHEN ORDERING ANY PAINTED PANEL TO
INDICATE COLOR OF UNIT:
1-ORANGE 5-BLACK
2-WHITE

6-CATERPILLAR YELLOW

3-SPECTRUM GREY

7-CATO GOLD

4-SUNBELT GREEN

8-RED

THE SERIAL NUMBER MAY BE REQUIRED.

page 64 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

OUTPUT TERMINAL ASSY.
NO. PART NO.
1
M1230700103
2
M9220100204
3
M9220100104
4
0039310000
5
0040010000
6
0041410000
7
0016908025
8
M1236101203
9
M1236100704
10 0605010040
11
0027103010
11A 0030003000
11B 0041203000
12
0027103010
12A 0030003000
13
M9220100804
13A 0040006000
13B 0041206000
13C 0080200005
14
0016906016
15
M1236400004
16
M1236300004
17
0016906020
18 0601815194
19
0027104016
20
0601808803
21
0601808804
22
M1260700304
22-1 0222100150
23
0016906020
24
0601812598
25
0601812538
26
0027104016
26A 0207004000
27 M1236400104
28
0016906016
29
M1236100803
30
0010112045
31
0041212000
32
M9310200004
33
0030012000

PART NAME
QTY.
TERMINAL PANEL
1
OUTPUT TERMINAL BOLT
5
TIE SCREW
5
HEX NUT
10
WASHER, LOCK
15
WASHER, FLAT
20
HEX HEAD BOLT
5
TERMINAL COVER
1
OUTPUT WINDOW
1
HINGE
2
MACHINE SCREW
4
HEX NUT
4
WASHER, FLAT
4
MACHINE SCREW
4
HEX NUT
4
SET SCREW
2
WASHER, LOCK
2
WASHER, FLAT
2
RETAINING RING
2
HEX HEAD BOLT
4
CABLE OUTLET COVER
1
SUPPORTER, CABLE OUTLET COVER 1
HEX HEAD BOLT
6
TERMINAL
1
MACHINE SCREW
2
CIRCUIT BREAKER, 1P 20A
2
CIRCUIT BREAKER, 2P 50A
3
BREAKER FITTING COVER
1
CUSHION RUBBER
1
HEX HEAD BOLT
2
RECEPTACLE, GF-530EM 125V 20A
2
RECEPTACLE, CS6369 250V 50A
3
MACHINE SCREW
10
HEX NUT
10
COVER
1
HEX HEAD BOLT
4
TERMINAL COVER
1
HEX HEAD BOLT
2
WASHER, FLAT
2
STAY RUBBER
2
HEX NUT
2

REMARKS

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 65

BATTERY ASSY.

page 66 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

BATTERY ASSY.
NO. PART NO.
1 0602220199
2
M9310500014
3
M9103000304
4
0602220920
5
0040006000
6
M1346400804
7
M1346400704
8
9
00171120025
9A
0040512000
10
0016910020
10A 0040510000

PART NAME
QTY.
REMARKS
BATTERY
1
BATTERY SHEET
1
BATTERY BAND
1
BATTERY BOLT SET
2
WASHER, LOCK
2
BATTERY CABLE
1
BATTERY CABLE
1
CABLE..........................................................1.................MAKE LOCALLY
HEX HEAD BOLT
1
TOOTHED WASHER
1
HEX HEAD BOLT
1
TOOTHED WASHER
1

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 67

Muffler Assy.

page 68 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

Muffler Assy.
NO. PART NO.
1 M3330100902
1 M1330100703
2
0016910025
3
M1333002703
4 8943690210
5 M1333200114
6
0039308000
7
0016908035
8 M1330400304
9 M1333300004
10
0016906016
11
0602326090

PART NAME
QTY.
REMARKS
MUFFLER
1
MUFFLER
1
HEX HEAD BOLT
4
EXHAUST PIPE
1
GASKET.......................................................1.................REPLACES P/N 0602320101
GASKET
1
HEX HEAD NUT
6
HEX HEAD BOLT
4
COVER
1
BRACKET
1
HEX HEAD BOLT
4
U-BOLT SET
1

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 69

FUEL TANK ASSY.

page 70 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

FUEL TANK ASSY.
NO. PART NO.
1
M1363001702
1-1
0605505070
1-2
0605501072
1-2A 0605516090
2
M1363200104
3
M9310500104
4
0016908020
5
0207308000
6
0222100600
7
0222100085
8
M9200000003
9
M9200200004
10 0150000018
11
0016906020
12
M1363400104
13
0605515198
14
M1366700404
15
M1366700504
16
0016910025
17
M2366700104
18
0016908025
19
8980139861
19A 8980088400
20
8980758550
20A 8980758540
21
8973834270
22
1096750951
23 1096300860
24
0015310045
24A 0040010000
24B 0041210000
25
0010110080
25A 0040010000
25B 0041210000
26
8980682750
26A 8980714010
27
0016906025
28
0191301100
29
0191300400
30
0191301400
31
0191300550
32
0191301150
33
0605515109

PART NAME
QTY.
REMARKS
FUEL TANK
1
FUEL TANK CAP
1
FUEL SENDER UNIT
1
GASKET
1
TANK BAND
2
SUPPORTER SHEET
4
HEX HEAD BOLT
2
HEX NUT
2
RUBBER SHEET
1
RUBBER SHEET
1
DRAIN JOINT
1
DRAIN BOLT
1
O-RING
1
HEX HEAD BOLT
2
DRAIN HOSE
1
HOSE BAND
2
FUEL FILTER BRACKET
1
FUEL FILTER BRACKET
1
HEX HEAD BOLT
4
FUEL PUMP BRACKET
1
HEX HEAD BOLT
2
FUEL FILTER (MAIN)...................................1.................REPLACES P/N 0602042426
ELEMENT, FUEL FILTER.............................1.................REPLACES P/N 0602042515
FUEL FILTER (PRE.)...................................1.................REPLACES P/N 0602042405
ELEMENT, FUEL FILTER.............................1.................REPLACES P/N 0602042516
JOINT PIPE..................................................4.................REPLACES P/N 0602042661
JOINT BOLT.................................................4.................REPLACES P/N 0602042621
PACKING......................................................8 ................REPLACES P/N 0602042641
HEX SOCKET HEAD CAP SCREW
4
WASHER, LOCK
4
WASHER, FLAT
4
HEX HEAD BOLT
2
WASHER, LOCK
2
WASHER, FLAT
2
FUEL FEED PUMP......................................1.................REPLACES P/N 0602023240
FUEL FILTER...............................................1.................REPLACES P/N 0602042517
HEX HEAD BOLT
2
SUCTION HOSE
1
SUCTION HOSE
1
SUCTION HOSE
1
SUCTION HOSE
1
RETURN HOSE
1
HOSE BAND
10

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 71

ENCLOSURE ASSY.

ADD THE FOLLOWING DIGITS AFTER THE PART
NUMBER WHEN ORDERING ANY PAINTED PANEL TO
INDICATE COLOR OF UNIT:
1-ORANGE 5-BLACK
2-WHITE

6-CATERPILLAR YELLOW

3-SPECTRUM GREY

7-CATO GOLD

4-SUNBELT GREEN

8-RED

THE SERIAL NUMBER MAY BE REQUIRED.

page 72 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

ENCLOSURE ASSY.
NO. PART NO.
1 M1413003202
2
M1413400004
3
0016908020
4
M1423002202
4A
M1493107903
4B
0228800050
5
0016908020
6
M1423200604
6A
M1493100804
7
0019208020
8
M1423202503
9
0016908020
10
M1433001203
11
M1433001303
12
0010114030
12A 0040014000
12B 0041214000
13
0010114030
13A 0040014000
13B 0041214000
14
M1443001802
14A M1493300504
15
0016908020
16
M1443302003
17
M1443302103
17A M1493304503
18
0207006000
19
0019208020
20
M1443201203
21
M1444600004
22
0037906000
22A 0041206000
23
M9113000002
24
0021806016
24A 0030006000
25
M9110100204
26 M9116100004
27
0019208020
28
M9310000004
29
M1463002102
29A M1493504603
30
0019208020
31 M3310600004
32
0019208020

PART NAME
BASE
UNDER COVER
HEX HEAD BOLT
FRONT FRAME
ACOUSTIC SHEET
SEAL RUBBER
HEX HEAD BOLT
COVER, FRONT FRAME
ACOUSTIC SHEET
HEX HEAD BOLT
INNER COVER, FRONT FRAME
HEX HEAD BOLT
CENTER FRAME
CENTER FRAME
HEX HEAD BOLT
WASHER, LOCK
WASHER, FLAT
HEX HEAD BOLT
WASHER, LOCK
WASHER, FLAT
REAR FRAME
ACOUSTIC SHEET
HEX HEAD BOLT
REAR COVER
DUCT, REAR COVER
ACOUSTIC SHEET
SELF- LOCKING NUT
HEX HEAD BOLT
REAR DOOR
WINDOW PLATE
SELF- LOCKING NUT
WASHER, FLAT
DOOR HANDLE ASSY
MACHINE SCREW
HEX HEAD NUT
HINGE
WASHER
HEX HEAD BOLT
BLIND PLUG
ROOF PANEL
ROOF PANEL
HEX HEAD BOLT
COVER
HEX HEAD BOLT

QTY.
1
1
2
1
1
4
4
1
1
12
1
4
1
1
8
8
8
8
8
8
1
1
4
1
1
1
12
9
1
1
8
8
1
4
4
2
2
3
2
1
1
19
1
4

REMARKS

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 73

ENCLOSURE ASSY. (continued)

ADD THE FOLLOWING DIGITS AFTER THE PART
NUMBER WHEN ORDERING ANY PAINTED PANEL TO
INDICATE COLOR OF UNIT:
1-ORANGE 5-BLACK
2-WHITE

6-CATERPILLAR YELLOW

3-SPECTRUM GREY

7-CATO GOLD

4-SUNBELT GREEN

8-RED

THE SERIAL NUMBER MAY BE REQUIRED.

page 74 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

ENCLOSURE ASSY. (continued)
NO. PART NO.
33
M1453201102
33A M1493410404
34
0019108055
34A 0042308000
34B 0042408000
35
0016908020
36
M1453004403
36A M1493408904
37
M1453004503
37A M1493409004
38
M1453001303
38A M1493400404
39
M1453004603
39A M1493409104
40
M1453302004
40A M1493411404
41 M1453301804
41A M1493411704
42 M1453301503
42A M1493409204
43 M1453301904
43A M1493412504
44 M1453301603
44A M1493409304
45
0207006000
46
M9113000002
47
0021806016
47A 0030006000
48 M9110100204
49 M9110100304
50 M9116100004
51
0019208000
52
0601850097
53
0027208025
54
M9310000004
55
0600800320
56
0021806016
57 0600500090
58
0021106016
59
0016908020
59A 0040508000

PART NAME
SPLASHER PANEL
ACOUSTIC SHEET
HEX HEAD BOLT
WASHER, LOCK
WASHER, FLAT
HEX HEAD BOLT
SIDE DOOR
ACOUSTIC SHEET
SIDE DOOR
ACOUSTIC SHEET
SIDE DOOR
ACOUSTIC SHEET
SIDE DOOR
ACOUSTIC SHEET
DUCT
ACOUSTIC SHEET
DUCT
ACOUSTIC SHEET
DUCT
ACOUSTIC SHEET
DUCT
ACOUSTIC SHEET
DUCT
ACOUSTIC SHEET
SELF- LOCKING NUT
DOOR HANDLE ASSY
MACHINE SCREW
HEX HEAD NUT
HINGE
HINGE
WASHER
HEX HEAD BOLT
DOOR STOPPER
MACHINE SCREW
BLIND PLUG
MANUAL PAK
MACHINE SCREW
EMBLEM
MACHINE SCREW
HEX HEAD BOLT
TOOTHED WASHER

QTY.
1
1
4
4
4
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
25
3
12
12
4
4
8
9
8
8
8
1
4
1
2
1
1

REMARKS

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 75

RUBBER SEALS ASSY.

page 76 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

RUBBER SEALS ASSY.
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

PART NO.
0228901390
0228900760
0228900610
0229400970
M1490300104
0228800515
0229400485
0228900910
0228900790
0229200540
0229200900
0229200840
0228800770
0228800470
0228800510
0228100420
0228100325

PART NAME
SEAL RUBBER
SEAL RUBBER
SEAL RUBBER
SEAL RUBBER
SEAL RUBBER
SEAL RUBBER
SEAL RUBBER
SEAL RUBBER
SEAL RUBBER
SEAL RUBBER
SEAL RUBBER
SEAL RUBBER
SEAL RUBBER
SEAL RUBBER
SEAL RUBBER
SEAL RUBBER
SEAL RUBBER

QTY.
2
1
1
3
1
1
1
1
1
1
2
1
2
1
1
2
2

REMArks

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 77

NAMEPLATE AND DECALS ASSY.

page 78 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

NAMEPLATE AND DECALS ASSY.
NO. PART NO.
PART NAME
QTY.
REMARKS
1
M1550000204
DECAL : NOTE...........................................................1............ M15000020
2
M1550000804
DECAL : NOTE...........................................................1............ M15000080
3
M15550001304
DECAL : CAUTION.....................................................1............ M15000130
4
M1550002203
DECAL : AUXILIARY OUTPUT..................................1............ M15000220
5
M1550003703
DECAL : GENERATOR CONTROL............................1............ M15000370
6
M1550003803
DECAL : ENGINE OPERATING.................................1............ M15000380
7
M2550002303
DECAL : OPERATING PROCEDURES......................1............ M25000230
8
M9500000004
DECAL : OIL DRAIN PLUG........................................1............ M90000000
9
M9500100004
DECAL : WATER........................................................1............ M90010000
10
M9500300004
DECAL : -...................................................................1............ M90030000
11
M9500300104
DECAL : +...................................................................1............ M90030010
12
M9500500104
DECAL : FUEL DRAIN PLUG....................................1............ M90050010
13
M9500500304
DECAL : DIESEL FUEL..............................................1............ M90050030
14
M9503000004
DECAL : WARNING....................................................2............ M90300000
15
M9403000103
DECAL : WATER - OIL CHECK..................................1............ M90300010
16
M9503100004
DECAL : WARNING....................................................1............ M90310000
17
M9503200004
DECAL : WARNING....................................................1............ M90320000
18
M9503200104
DECAL : DANGER.....................................................1............ M90320010
19
M9510000104
DECAL : DOCUMENT BOX LOCATED......................1............ M91000010
20
M9510100004
DECAL : CAUTION.....................................................1............ M91010000
21
M9510100403
DECAL : CAUTION.....................................................1............ M91010040
22
M9510200002
DECAL : MQ...............................................................1............ M91020000
23
M9520000004
DECAL : GROUND.....................................................1............ M92000000
24
M9520000104
DECAL : AMMETER CHANGE- OVER SWITCH.......1............ M92000010
25
M9520000204
DECAL : VOLTMETER CHANGE- OVER SWITCH....1............ M92000020
26
M9520000504
DECAL : START CONTACT........................................1............ M92000050
27
M9520000904
DECAL : DIAGNOSTIC SWITCH...............................1............ M92000090
28
M9520001104
DECAL : DIAGNOSTIC BUTTON...............................1............ M92000110
29
M9520100004
DECAL : WARNING....................................................2............ M92010000
30
M9520100204
DECAL : CAUTION.....................................................1............ M92010020A
31
M9520100304
DECAL : SAFETY INSTRUCTIONS...........................1............ M92010030
32
M9520100404
DECAL : DANGER.....................................................1............ M92010040
33
M9520100503
DECAL : WARNING....................................................1............ M92010050
34
M9520100603
DECAL : CAUTION.....................................................2............ M92010060
35
M9520200003
DECAL : CONNECTION OF OUTPUT CABLE..........1............ M92020000
36
M9520200404
DECAL ; OVER CURRENT RELAY............................1............ M92020040
37
M1560100603
STRIPE : WHISPERWATT.........................................1
38
M1560101904
DECAL : MQ POWER................................................2
39 M1560102403 STRIPE......................................................................1
40 M1560101104 STRIPE......................................................................2
41
M1560100904
STRIPE 45.................................................................2
42 M1560102503 STRIPE......................................................................1

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 79

Terms and Conditions of Sale — Parts
paYment termS

Parts must be in new and resalable
condition, in the original Multiquip
package (if any), and with Multiquip part
numbers clearly marked.

The following items are not returnable:

Multiquip reserves the right to quote and
sell direct to Government agencies, and to
Original Equipment Manufacturer accounts
who use our products as integral parts of their
own products.

SpeCIal expeDItIng ServICe

Terms of payment for parts are net 30 days.

FreIght polICY
All parts orders will be shipped collect or
prepaid with the charges added to the invoice.
All shipments are F.O.B. point of origin.
Multiquip’s responsibility ceases when a
signed manifest has been obtained from the
carrier, and any claim for shortage or damage
must be settled between the consignee and
the carrier.

mInImUm orDer
The minimum charge for orders from Multiquip
is $15.00 net. Customers will be asked for
instructions regarding handling of orders not
meeting this requirement.

retUrneD gooDS polICY
Return shipments will be accepted and
credit will be allowed, subject to the following
provisions:
1.

A Returned Material Authorization
must be approved by Multiquip prior to
shipment.

Obsolete parts. (If an item is in the
price book and shows as being
replaced by another item, it is
obsolete.)
Any parts with a limited shelf life
(such as gaskets, seals, “O” rings,
and other rubber parts) that were
purchased more than six months
prior to the return date.

Any line item with an extended
dealer net price of less than
$5.00.

Special order items.

Electrical components.

Paint, chemicals, and lubricants.

Decals and paper products.

Items purchased in kits.

The sender will be notified of any material
received that is not acceptable.

To obtain a Return Material Authorization,
a list must be provided to Multiquip
Parts Sales that defines item numbers,
quantities, and descriptions of the items
to be returned.

Such material will be held for five
working days from notification, pending
instructions. If a reply is not received
within five days, the material will be
returned to the sender at his expense.

The parts numbers and descriptions
must match the current parts price
list.

The list must be typed or computer
generated.

Credit on returned parts will be issued
at dealer net price at time of the original
purchase, less a 15% restocking
charge.

The list must state the reason(s)
for the return.

The list must reference the sales
order(s) or invoice (s) under
which the items were originally
purchased.

The list must include the name
and phone number of the person
requesting the RMA.

A copy of the Return Material Authorization
must accompany the return shipment.

Freight is at the sender’s expense. All
parts must be returned freight prepaid to
Multiquip’s designated receiving point.

10. In cases where an item is accepted, for
which the original purchase document
can not be determined, the price will be
based on the list price that was effective
twelve months prior to the RMA date.

A $35.00 surcharge will be added to the
invoice for special handling including bus
shipments, insured parcel post or in cases
where Multiquip must personally deliver the
parts to the carrier.

lImItatIonS oF Seller’S lIabIlItY
Multiquip shall not be liable hereunder for
damages in excess of the purchase price of
the item with respect to which damages are
claimed, and in no event shall Multiquip be
liable for loss of profit or good will or for any
other special, consequential or incidental
damages.

lImItatIon oF WarrantIeS
No warranties, express or implied, are
made in connection with the sale of parts or
trade accessories nor as to any engine not
manufactured by Multiquip. Such warranties
made in connection with the sale of new,
complete units are made exclusively by a
statement of warranty packaged with such
units, and Multiquip neither assumes nor
authorizes any person to assume for it
any other obligation or liability whatever in
connection with the sale of its products. Apart
from such written statement of warranty,
there are no warranties, express, implied or
statutory, which extend beyond the description
of the products on the face hereof.

Effective: February 22, 2006

11. Credit issued will be applied to future
purchases only.

PRICING AND REBATES
Prices are subject to change without prior
notice. Price changes are effective on a
specific date and all orders received on or
after that date will be billed at the revised price.
Rebates for price declines and added charges
for price increases will not be made for stock
on hand at the time of any price change.

page 80 — DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13)

notes

DCA45SSIU4 60 hz Generator • operation and parts manual — rev. #1 (10/24/13) — page 81

Operation and Parts Manual

HERE’S HOW TO GET HELP
PLEASE HAVE THE MODEL AND SERIAL
NUMBER ON-HAND WHEN CALLING
United StateS
Multiquip Corporate Office
18910 Wilmington Ave.
Carson, CA 90746
Contact: mq@multiquip.com

MQ Parts Department
Tel. (800) 421-1244
Fax (310) 537-3927

Service Department
800-421-1244
310-537-3700

800-427-1244
310-537-3700

Fax: 800-672-7877
Fax: 310-637-3284

Warranty Department
Fax: 310-537-4259

800-421-1244
310-537-3700

Fax: 310-943-2249

Technical Assistance
800-478-1244

Fax: 310-943-2238

Canada

United Kingdom

Multiquip

Multiquip (UK) Limited Head Office

4110 Industriel Boul.
Laval, Quebec, Canada H7L 6V3
Contact: jmartin@multiquip.com

Tel: (450) 625-2244
Tel: (877) 963-4411
Fax: (450) 625-8664

Unit 2, Northpoint Industrial Estate,
Globe Lane,
Dukinfield, Cheshire SK16 4UJ
Contact: sales@multiquip.co.uk

Tel: 0161 339 2223
Fax: 0161 339 3226

© COPYRIGHT 2013, MULTIQUIP INC.
Multiquip Inc, the MQ logo and the MQ Power logo are registered trademarks of Multiquip Inc. and may not be used, reproduced, or altered without written permission. All other
trademarks are the property of their respective owners and used with permission.
This manual MUsT accompany the equipment at all times. This manual is considered a permanent part of the equipment and should remain with the unit if resold.
The information and specifications included in this publication were in effect at the time of approval for printing. Illustrations, descriptions, references and technical data contained in
this manual are for guidance only and may not be considered as binding. Multiquip Inc. reserves the right to discontinue or change specifications, design or the information published
in this publication at any time without notice and without incurring any obligations.

Your Local Dealer is:

Manufactured for
Multiquip Inc.
by
DENYO CO., LTD, JAPAN

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.7
Linearized                      : Yes
Create Date                     : 2013:10:24 12:38:14-07:00
Creator                         : Adobe InDesign CS6 (Windows)
Modify Date                     : 2013:10:24 12:45:07-07:00
XMP Toolkit                     : Adobe XMP Core 5.2-c001 63.139439, 2010/09/27-13:37:26
Instance ID                     : uuid:9aaf40ed-1b1b-49de-9372-dd5ffa744450
Original Document ID            : adobe:docid:indd:77ad3a5b-a9db-11dd-954d-ebcd72b65dd8
Document ID                     : xmp.id:FC9E895FDF3CE311A678D670A0F557CF
Rendition Class                 : proof:pdf
Derived From Instance ID        : xmp.iid:F89E895FDF3CE311A678D670A0F557CF
Derived From Document ID        : adobe:docid:indd:77ad3a5b-a9db-11dd-954d-ebcd72b65dd8
Derived From Original Document ID: adobe:docid:indd:77ad3a5b-a9db-11dd-954d-ebcd72b65dd8
Derived From Rendition Class    : default
History Action                  : converted
History Parameters              : from application/x-indesign to application/pdf
History Software Agent          : Adobe InDesign CS6 (Windows)
History Changed                 : /
History When                    : 2013:10:24 12:38:14-07:00
Metadata Date                   : 2013:10:24 12:45:07-07:00
Creator Tool                    : Adobe InDesign CS6 (Windows)
Format                          : application/pdf
Producer                        : Adobe PDF Library 10.0.1
Trapped                         : False
Page Count                      : 82

EXIF Metadata provided by EXIF.tools

Multiquip Portable Generator Dca45Ssiu4 Users Manual

Multiquip Portable Generator dca45ssiu4 Generators_portable_supersilent_DCA45SSIU4_rev_1_60_hz_manual_DataId_19054_Version_2

dca45ssiu4 to the manual de8e4cef-f862-41a0-ba5a-7fc82b845764

Navigation menu

Versions of this User Manual:

Views

Navigation