Spx Cooling Technologies Marley Class F400 Users Manual

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/ Marley Class F400 Cooling Tower /

User Manual 93-1288A

2

Contents

These instructions assist in obtaining efficient, long life from Marley

counterflow cooling towers. Direct questions concerning cooling tower

operation and maintenance to your Marley sales representative. Al-

ways include your tower serial number when writing for information

or ordering parts. Look for this number on the sidewall casing.

The following defined terms are used throughout this manual to

bring attention to the presence of hazards of various risk levels, or

to important information concerning the life of the product.

Indicates presence of a hazard which can cause severe personal

injury, death or substantial property damage if ignored.

Indicates presence of a hazard which will or can cause personal injury

or property damage if ignored.

Indicates special instructions on installation, operation or maintenance

which are important but not related to personal injury hazards.

Warning

Caution

Note

Note

Before Startup ........................................................................................ 3

Starting Procedure ................................................................................. 4

Operation ................................................................................................ 4

Tower Maintenance ................................................................................ 6

Water Treatment ..................................................................................... 8

Spare Parts ........................................................................................... 12

Seasonal Shutdown Instructions .......................................................... 12

Tower Cleaning ..................................................................................... 13

Troubleshooting .................................................................................... 14

Safety ................................................................................................... 15

Inspection and Maintenance Schedule ................................................ 16

Inspection Checklist ............................................................................. 18

3

Before Start-up

Among other sources, outbreaks of Legionnaires’ disease have re-

portedly been traced to cooling towers. Maintenance procedures

that prevent amplification and dissemination of Legionella and other

airborne bacteria should be formulated and implemented BEFORE

systems are operated and continued reqularly thereafter to avoid the

risk of sickness or death

CLEANING–New installations should be cleaned and treated with biocides

by a water treatment expert before startup. Remove any dirt and trash which

has accumulated in the cold water basin. Remove any sediment from the

cold water collection basin, sump, and screens. Use a water hose to flush

cold water collection basins.

OPERATE WATER SYSTEM–Start the circulating water pumps. Increase

the flow of circulating water gradually to match design water flow rate.

Circulate water over the cooling tower continuously for several days

before starting the mechanical equipment and placing the cooling tower

into continuous operation.

When starting in cold weather, follow procedures outlined in Cold

Weather Operation.

INSPECTION–It is imperative that all operating assemblies be inspected

before they are placed in operation. The following is a list of components

to be checked before starting the tower:

1–Check drive shaft alignment. Realign if necessary. See Marley Drive

Shaft Service Manual.

2– Check tightness of bolts in fan cylinder joints.

3–Check tightness of the following bolted joints in the fan and drive as-

semblies:

a–Fan hub clamp bolts. See Marley Fan User Manual for correct torque

setting).

b–Fan hub cover bolts.

c–Geareducer® and motor mounting bolts.

d—Drive shaft coupling and guard bolts.

4–Check Geareducer oil for sludge or water by draining off and testing a

sample as outlined in the Geareducer User Manual. Check Geareducer

oil level at “oil level” mark on the side of the case. Add oil as required.

Note

➠

Warning

4

The oil level placard must be adjusted so that its “full” mark is at the

same elevation as the “full” mark on the side of the Geareducer case.

Check oil lines to be sure there are no leaks. See Geareducer User

Manual for oil filling procedure and list of recommended lubricants.

5–Rotate fan by hand to be sure of free rotation and ample tip clearance.

See Fan User Manual.

6–Check motor insulation with a “Megger”. See Maintenance Section of

Marley Electric Motor User Manual.

7–Lubricate the motor according to motor manufacturer’s instructions.

8–Test run each fan separately for a short time. Check for excessive vibra-

tion or unusual noise. If either is present, see Troubleshooting Guide

on pages 14 and 15 of this manual. Fan must rotate clockwise when

viewed from above. Recheck Geareducer oil level.

9–Check functioning of make-up water supply.

10–Make sure the blowdown will carry the proper amount of water.

Starting Procedure

WATER SYSTEM–Fill the cold water collection basin and circulating water

system until the operating water level is reached. See Operation Section,

below. Prime and start the circulating water pumps. Increase the flow of

circulating water gradually to design water flow rate to avoid water ham-

mer which could damage the distribution piping system.

Clean the sump screens several times during the first weeks of op-

eration. After this, clean sump screens weekly.

When starting in cold weather, follow procedures outlined in Cold

Weather Operation.

STARTING FAN–Start the fan. After 30 minutes of operating time to permit

Geareducer oil to come up to operating temperature, check motor load

with watt meter, or take operating volt and ampere readings and calculate

motor hp. Refer to Marley Fan User Manual for instructions. Pitch fans

to pull correct contract horsepower when circulating design water rate at

design hot water temperature.

Operation

Entering water temperature in excess of 125°F may result in fill de-

formation.

Note

Note

Caution

5

TOWER PERFORMANCE–Keep the cooling tower clean and water dis-

tribution uniform to obtain continued maximum cooling capacity.

The capacity of a cooling tower to cool water to a given cold water tem-

perature varies with the wet-bulb temperature and the heat load applied

to the cooling tower.

As the wet-bulb temperature drops, the cold water temperature also

drops. However, the cold water temperature does not drop linearly with

the wet-bulb temperature.

A cooling tower will not control heat load. The flow rate of water circulated

through the cooling tower will determine the temperature range of cool-

ing in conjunction with a given heat load. The hot water and cold water

temperatures will increase with higher heat loads.

HOT WATER DISTRIBUTION SYSTEM–Maintain uniform water distribu-

tion at the nozzles (uniform spray cone). The amount of water circulated

should approximate the contract requirements and the nozzle pressure

should be kept constant. Lower pressures may indicate excessive losses

in the piping system and/or insufficient pump capacity; greater pressures

might indicate clogged nozzles and/or overpumping. If a greatly reduced

water flow rate is desired, it may be advisable to change nozzle sizes to

obtain the desired pressure and maintain proper water distribution. An

SPX Cooling Technologies engineer can advise minimum and maximum

flow rates for even distribution.

COLD WATER COLLECTION BASIN–A suitable depth must be maintained

to keep the pumps from pulling air into the line. The amount of “make-up”

water required to keep the water in the collection basin at the required

depth depends upon the “evaporation loss” and “blowdown” .

FAN DRIVE–When using two-speed motors, allow a time delay of 20

seconds minimum after de-energizing the high-speed winding and before

energizing the low-speed winding. Tremendous stresses are placed on

driven machinery and motors unless the motors are allowed to slow to

low-speed RPM or less before the low-speed winding is energized.

COLD WEATHER OPERATION–During periods of low temperature op-

eration, 35°F to 40°F or below, ice will form on the relatively dry parts of

the cooling tower that are in contact with the incoming air. Primarily, this

includes the air inlet and adjacent structural framing. Your understanding of

➠

6

Caution

cold weather operation will be enhanced if you read “Operating Cooling

Towers in Freezing Weather” Marley Technical Report #H-003.

Ice forming characteristics on any given cooling tower will vary, depending

on velocity and direction of wind, circulating water rate, and heat load.

Excessive ice formation may be controlled by regulating air and water flow

through the tower by one or more of the following procedures:

1–Shut the fan down. This reduces the cooling air rate to a minimum and

increases the quantity of warm water at the air inlet to a maximum.

However, normal “fan off” operation causes reverse air flow by aspira-

tion and may cause water blowout and therefore must be done with

caution and monitoring. For automatic operation, a timer switch can be

provided to shut the fan down for a few minutes each hour.

2–When a cooling tower has two-speed motors, operate the fans at half

speed forward. This reduces the cooling air rate (heat transfer) and

increases the quantity of warm water at the air inlet.

3–With no heat load on the circulating water, icing cannot be controlled.

Towers must not be operated with reduced water rate and/or no heat

load during freezing weather. If a bypass directly into the cold water

basin is used, all water must be bypassed.

Reverse operation of fans is not recommended . See “Fan Drive” for

fan speed change precautions.

INTERMITTENT OPERATION–When the unit is operated intermittently

during winter weather, it is necessary that the water be drained from the

tower piping to insure protection against freezing and possible rupture.

Tower Maintenance

Always shut off electrical power to the tower fan motor prior to

performing any inspections that may involve physical contact with

the mechanical or electrical equipment in or on the tower. Lock out

and tag out any electrical switches to prevent others from turning

the power back on. Service personnel must wear proper personal

protective clothing and equipment.

Well-maintained equipment gives the best operating results and the least

maintenance cost. SPX recommends setting up a regular inspection

schedule to insure effective, safe operation of the cooling tower. Use the

schedule on page 16 to obtain continuously good performance with the

Warning

7

least tower maintenance. See Cooling Tower Inspection Check List in this

manual. Keep a continuous lubrication and maintenance record for each

cooling tower.

HOT WATER DISTRIBUTION SYSTEM–Keep the circulating water and

distribution system (piping and nozzles) clean and free of dirt, algae, and

scale. Algae and scale may clog nozzles, eliminators, fill, and piping, and

may collect on the equipment served thus reducing its performance.

An access hatch in the fan deck with ladder to an intermediate platform

provides means for inspection of the plenum area above the eliminators.

Removal of an access hatch at the plenum level allows access to the

spray chamber for inspection and maintenance of the nozzles and top of

fill. Provide surface protection before walking on the fill.

DRIFT ELIMINATORS–Eliminators should be kept clean.

Do not walk or step on the eliminators without planking and safety

harness.

COLD WATER COLLECTION BASIN (supplied by others)–Inspect collec-

tion basin occasionally for leaks and repair if necessary. Keep cold water

outlets clean and free of debris. Makeup and circulating water controls must

operate freely and maintain the desired water quantity in the system.

DRIVE SHAFT–Check drive shaft alignment and condition of couplings

every six months. See the Drive Shaft User Manual for correcting mis-

alignment, balancing, or replacing parts.

ELECTRIC MOTOR–Lubricate and maintain each electric motor in ac-

cordance with the manufacturer’s instructions. If repair work is necessary,

contact the nearest representative of the motor manufacturer. See Warranty

Section of Marley Electric Motors User Manual.

FAN–Inspect fan blade surfaces every six months. For detailed mainte-

nance information, refer to Marley Fan User Manual.

GEAREDUCER–Make weekly and monthly oil checks. Inspect internal

parts during seasonal oil change. Refer to the Geareducer User Manual

for detailed maintenance instructions.

PAINTING–Periodically clean and, if necessary, recoat all metal parts

subject to corrosion.

Warning

8

Water Treatment

BLOWDOWN–Blowdown, or bleed-off, is the continuous removal of a

portion of the water from the circulating system. Blowdown is used to

prevent the dissolved solids from concentrating to the point where they

will form scale. The amount of blowdown required depends upon the cool-

ing range (the difference between the hot and cold water temperatures)

and the composition of the make-up water (water added to the system to

compensate for losses by blowdown, evaporation and drift). The follow-

ing table shows the amount of blowdown required to maintain different

concentrations with various cooling ranges:

BLOWDOWN–% OF CIRCULATING RATE

egnaRgnilooC snoitartnecnoCforebmuN

X5.1 X0.2 X5.2 X0.3 X0.4 X0.5 X0.6

)C°87.2(F°5 87.83.52.81.11.80.60.

)C°65.5(F°01 85.187.15.83.52.81.41.

)C°33.8(F°51 83.2 81.187.85.83.82.22.

)C°11.11(F°02 81.3 85.1 50.187.15.83.03.

)C°98.31(F°52 89.3 89.1 23.189.46.84.83.

.etarretawgnitalucricehtfo%20.0fotfirdnodesaberasreilpitluM

EXAMPLE: 7000 GPM circulating rate, 15° cooling range. To maintain 4

concentrations, the required blowdown is .38% or .0038 times 7000 GPM

which is 26.6 GPM.

If tower is operated at 4 concentrations, circulating water will contain four

times as much dissolved solid as the make-up water, providing none of

the solids form scale or are otherwise removed from the system.

CHEMICAL TREATMENT–In some cases chemical treatment of the circu-

lating water is not required if adequate blowdown is maintained. In most

cases, however, chemical treatment is required to prevent scale formation

and corrosion. Sulfuric acid or one of the polyphosphates is most gener-

ally used to control calcium carbonate scale. Various proprietary materi-

als containing chromates, phosphates or other compounds are available

for corrosion control. When water treatment chemicals are required, the

services of reliable water treating companies should be obtained.

Slime, a gelatinous organic growth, and algae, a green moss, may grow

in the cooling tower or heat exchangers. Their presence can interfere

with cooling efficiencies. Proprietary compounds are available from

water treating companies for the control of slime and/or algae; however,

9

compounds which contain copper are not recommended. Chlorine and

chlorine containing compounds are effective algaecides and slimicides.

If used, chlorine should be added as intermittent (or shock) treatment

only as frequently as needed to control the slime and algae. Chlorine and

chlorine containing compounds should be added carefully since very high

levels of chlorine may occur at or near the point of entry into the circulat-

ing water system.

FOAMING–Heavy foaming sometimes occurs when a new tower is put into

operation. This type of foaming generally subsides after a relatively short

period of operation. Persistent foaming can be caused by the concentra-

tions of certain combinations of dissolved solids or by contamination of

the circulating water with foam-causing compounds. This type of foaming

can sometimes be minimized by increasing the blowdown, but in some

cases foam depressant chemicals must be added to the system. Foam

depressants are available from a number of chemical companies.

MAINTENANCE OF FILL PERFORMANCE

Owner must keep water clean by treatment, screening, or filtering

to avoid the possibility of fill clogging and loss of thermal perfor-

mance.

Potential Causes of Fill Clogging:

• Suspended materials—Trash, etc.

• Scale—Can be sulfates, silicates, carbonates, or oxides. Scaling effects

can be accentuated by suspended muds.

• Algae and/or Slime—Can control with chlorine or non-oxidizing biocides.

Possible Sources of Scale:

• Calcium Sulfate—From make-up and sulfates produced by sulfuric

acid for pH adjustment. Calcium sulfate should be kept below 1000 ppm

expressed as CaCO3.

• Calcium Carbonate—Generally will not form scale in the cooling tower

if carbonate scaling does not occur in the condenser.

• Exceptions: If make-up water contains surplus free carbon dioxide,

scaling may be inhibited in the condenser, but may occur in the tower fill

because of CO2 stripping.

• Silicates and Oxides—Silica scale is virtually impossible to remove. Silica

scale is unlikely if SiO2 is held below 150 ppm. Oxides, such as iron oxide,

can coat all parts of the system if soluble iron is present in concentrations

above 0.5 ppm. Iron oxides do not usually develop into thick scales but

can accentuate the development of other scales.

Warning

classF400

12

Spare Parts

SPX Cooling Technologies manufactures and maintains a stock of re-

placement parts for all cooling tower mechanical equipment. Shipment of

these parts are normally made within ten days after an order is received.

If emergency service is necessary, contact the local Marley representative

for assistance.

To prevent prolonged shutdown periods in case of damage to the me-

chanical equipment, it is suggested that the following parts be carried in

the owner’s stock:

• One fan assembly.

• One Geareducer assembly.

• One drive shaft assembly.

Be sure to furnish the tower serial number when ordering parts.

Seasonal Shutdown Instructions

Tower–Drain all tower piping.

During shutdown, clean the tower and make any necessary repairs. Ap-

ply protective coating as required to all metal parts. Particular attention

should be given to mechanical equipment supports, drive shaft and drive

shaft guards.

Mechanical Equipment

Geareducer (shutdown for 3 months or less).

1. Each month, drain water condensate from the lowest point of the

Geareducer and its oil system. Check oil level and add oil if necessary.

Operate to recoat all interior surfaces with oil.

2. At start-up, drain water condensate and check oil level. Add oil if nec-

essary.

Refer to Geareducer User Manual for maintenance and lubrication in-

structions.

13

Geareducer (shutdown for 3 months or more).

1. If the motors have space heaters, operate mechanical equipment one

hour each month.

2. If the motors do not have space heaters, operate mechanical equipment

one hour each week.

3. At startup, operate mechanical equipment one hour or until oil is warm,

then shut the equipment down. Drain the oil and refill with new oil.

Refer to Geareducer Manual for instruction on changing oil. Refer to

Downtime Instruction Manual for downtime exceeding six months.

Electric Motors

1. Do not start motor without determining that there will be no interference

with free rotation of the fan drive.

2. Refer to the Marley Motor User Manual.

3. If shutdown period is longer than seasonal, contact your Marley sales

representative for additional information.

Cooling Tower Cleaning

Any evaporative-type cooling tower must be thoroughly cleaned

on a regular basis to minimize the growth of bacteria, including

Legionella Pneumophilla, to avoid the risk of sickness or death.

Service personnel must wear proper personal protective equipment

during decontamination. Do NOT attempt any service unless the fan

motor is locked out.

Operators of evaporative cooling equipment, such as water cooling tow-

ers, should follow maintenance programs which will reduce to an absolute

minimum the opportunity for bacteriological contamination. Public Health

Service officials have recommended that “good housekeeping” procedures

be followed, such as: regular inspections for concentrations of dirt, scale,

and algae; periodic flushing and cleaning; and the following of a complete

water treatment program including biocidal treatment.

Visual inspection should take place at least once a week during the operat-

ing season. Periodic flushing and cleaning should be done at least twice a

year. Nozzles should be checked for clogging. Drift eliminators, and easily

accessible fill surfaces should be cleaned by use of a moderate-pressure

water nozzle, being careful not to cause physical damage. A reliable water

treatment program should be installed and maintained.

Warning

14

Troubleshooting

Remedy

1. Check power at starter. Correct any bad connections be-

tween the control apparatus and the motor.

2. Check starter contacts and control circuit. Reset overloads,

close contacts, reset tripped switches or replace failed con-

trol switches.

3. If power is not on all leads at starter make sure overload and

short circuit devices are in proper condition.

Check motor and control connections against wiring diagrams.

Check nameplate voltage against power supply. Check voltage

at motor terminals.

Check stator windings for open circuits.

Disconnect motor from load and check motor and Geareducer

for cause of problem.

Look for broken bars or rings.

Stop motor and attempt to start it. Motor will not start if single-

phased. Check wiring, controls and motor.

Check motor connections against wiring diagram on motor.

Check lubrication. Replace bade bearings.

Check voltages and currents of all three lines. Correct if required.

Check and correct bracket fits or bearing.

Rebalance.

Reinstall or replace fan.

Check voltage and current of all three lines against nameplate

values.

Check fan blade pitch. See Fan Service Manual. Check for drag

in fan drive train as from damaged bearings.

Check nameplate against power supply. Check RPM of motor

and gear ratio.

Remove grease reliefs. Run motor up to speed to purge exces-

sive grease.

If not poor machining, replace worn bearing.

Change to proper lubricant. See motor manufacturer’s instruc-

tion.

Stop motor and attempt to start it. Motor will not start if single-

phased. Check wiring, controls and motor.

Clean motor and check ventilation openings. Allow ample venti-

lation around motor.

Check with Ohmmeter

Straighten or replace shaft.

Remove plugs and regrease bearings.

Flush bearings and relubricate.

Replace bearings.

See Fan Service Manual for blade pitching instructions.

Check transformer and setting of taps. Use higher voltage on

transformer terminals or reduce loads. Increase wire size or

reduce inertia.

Look for cracks near the rings. A new rotor may be required.

Have motor service man check motor.

Cause

Power not available at motor terminals

Wrong connections

Low voltage

Open circuit in motor winding

Motor or fan drive stuck

Rotor defective

Motor running single-phase

Motor leads connected incorrectly

Ball bearings

Electrical unbalance

Air gap not uniform

Rotor unbalance

Cooling fan hitting guard

Wrong voltage or unbalanced voltage

Overload

Wrong motor RPM

Bearings overgreased

Rotor rubs stator bore

Wrong lubricant in bearings

One phase open

Poor ventilation

Winding fault

Bent motor shaft

Insufficient grease

Deterioration of or foreign material in

grease

Bearings damaged

Incorrect fan blade pitch

Voltage too low at motor terminals be-

cause of line drop

Broken rotor bars

Trouble

Motor Will Not Start

Unusual Motor Noise

Motor Runs Hot

Motor Does Not Come Up

To Speed

15

Ladders, Stairways,

Walkways, Handrails, Covers,

Decks and

Access Doors

Davits, Derricks, and Hoists

Inspect for General Condition

Semi-annually

Semi-annually

Inspect and Repair for Safe Use

Yearly

Inspect and Repair Before Each Use

As Required

Troubleshooting

RemedyCauseTrouble

Wrong sequence of phases

Geareducer bearings

Gears

Loose bolts and cap screws

Unbalanced drive shaft or worn

couplings

Fan

Worn Geareducer bearings

Unbalanced motor

Bent Geareducer shaft

Loose fan hub cover

Blade rubbing inside of fan cylinder

Loose bolts in blade clamps

Change any two of the three motor leads.

If new, see if noise disappears after one week of operation.

Drain, flush and refill Geareducer. See Geareducer User Manual.

If still noisy, replace.

Correct tooth engagement. Replace badly worn gears. Replace

gears with imperfect tooth spacing or form.

Tighten all bolts and cap screws on all mechanical equipment

and supports.

Make sure motor and Geareducer shafts are in proper alignment

and “match marks” properly matched. Repair or replace worn

couplings. Rebalance drive shaft by adding or removing weights

from balancing cap screws. See Drive Shaft User Manual.

Make certain all blades are as far from center of fan as safety

devices permit. All blades must be pitched the same. See Fan

User Manual. Clean off deposit build-up on blades.

Check fan and pinion shaft endplay. Replace bearings as

necessary.

Disconnect load and operate motor. If motor still vibrates, rebal-

ance rotor.

Check fan and pinion shaft with dial indicator. Replace if neces-

sary.

Tighten hub cover fasteners.

Adjust cylinder to provide blade tip clearance.

Check and tighten if necessary.

Wrong Rotation (Motor)

Geareducer Noise

Unusual Fan Drive

Vibration

Fan Noise

SAFETY FIRST–The tower has been designed to provide a safe working environment while either operating

or shut down. The ultimate responsibility for safety rests with the Operator and Owner. When flow to the tower

is shut off or when portions of the tower require maintenance, temporary safety barricades may be required

around openings, and other safety precautions such as safety harnesses should be utilized where appropriate

for compliance with OSHA regulations and standards and good safety practices.

Routine periodic maintenance must

be performed on all personnel access

and material handling accessories in

accordance with the following schedule:

16

Inspection and Maintenance Schedule

General Recommendations

—more frequent inspection and mainte-

nance may be desirable

D–Daily W–Weekly M–Monthly Q–Quarterly S–Semiannually Y–Yearly R–as Required

1. Inspect for clogging

M

M

W

W

2. Check for unusual noise or vibration

D

D

D

D

3. Inspect keys, keyways and set screws

S

S

S

S

4. Make sure vents are open

S

5. Lubricate (grease)

R

S

6. Check oil seals

M

7. Check operating oil level

D

8. Check static oil level

M

9. Check oil for water and sludge

M

10. Change oil

S

11. Check fan blade tip clearance

S

12. Check water level

D

D

13. Check for leakage

W

S

S

S

14. Inspect general condition

S

S

S

S

Y

S

Y

S

Y

S

S

S

Y

S

S

S

15. Tighten loose bolts

S

S

S

S

16. Clean

R

R

R

R

R

R

S

R

R

R

R

17. Repaint

R

R

R

R

18. Rebalance

R

R

19. Inspect/repair for safe use

Y

Y

Y

20. Inspect and repair before each use

R

Fan and Fan Guard

Motor

Driveshaft and Guards

Geareducer

Eliminator

Fill

Cold Water Basin

Hot Water Distribution System

Float Valve

Suction Screen

Control Valves

Structural Members

Casing

Fan Cylinder

Stairs, Ladders, Walkway, Doors, Handrails

Davits, Derricks, Hoists

17

Inspection and Maintenance Notes

18

Date Inspected Inspected By

Owner Location

Owner’s Tower Designation

Tower Manufacturer Model No. Serial No.

Process Served by Tower Operation: Continuous Intermittent Seasonal

Design Conditions GPM HW °F CW °F WB °F

Number of Fan Cells

Structure

Casing Material

Structural Material

Fan Deck Material

Stairway? Material

Ladder? Material

Handrails? Material

Interior Walkway? Material

Cold Water Basin Material

Water Distribution System

Distribution System

Header Material

Manifold Material

Branch Arms

Nozzles—Orifice diameter inches

Heat Transfer System

Fill

Inlet Face of Fill

Eliminators

Condition: 1—Good 2—Keep an eye on it 3—Needs immediate attention

❑

❑

❑

1 2 3 Comments

Inspection Checklist

Use this space to list specific items needing attention: __________________________________________________________

____________________________________________________________________________________________________________

____________________________________________________________________________________________________________

____________________________________________________________________________________________________________

____________________________________________________________________________________________________________

____________________________________________________________________________________________________________

____________________________________________________________________________________________________________

19

Mechanical Equipment

Gear Drive Units

Manufacturer Model Ratio

Oil Level: Full Add Immediately Low, check again soon

Oil Condition: Good Contains Water Contains Metal Contains Sludge

Oil Used—type

Seals

Back Lash

Fan Shaft End Play

Any Unusual Noises? No Yes Action Required:

Drive Shafts

Manufacturer Material

Fans

Manufacturer Fixed Pitch Adjustable Pitch

Diameter Number of Blades

Blade Material

Hub Material

Hub Cover Material

Blade Assembly Hardware

Blade Tip Clearance " min. " max.

Vibration Level

Fan Cylinder Height

Mech. Eqpt. Support Mat’l

Oil Fill & Drain Lines

Oil Level Sight Glass

Vibration Limit Switches

Other Components

Motor

Manufacturer

Name Plate Data: hp RPM Phase Cycle Volts

F.L. Amps Frame S.F. Special Info.

Last Lubrication—Date

Grease Used—Type

Any Unusual Noise? No Yes Action Required

Any Unusual Vibration? No Yes Action Required

Any Unusual Heat Build-up? No Yes Action Required

1 2 3 Comments

❑

❑

❑

❑

❑

❑

Inspection Checklist

❑

❑

❑

❑

Condition: 1—Good 2—Keep an eye on it 3—Needs immediate attention

❑

❑

❑

❑

❑

❑

❑

7401 WEST 129 STREET | OVERLAND PARK, KANSAS 66213 UNITED STATES | 913 664 7400 | spxcooling@spx.com

| spxcooling.com

In the interest of technological progress, all products are subject to design and/or material change without notice.

©2009 SPX Cooling Technologies, Inc. | Printed in USA

Manual 93-1288A