Husqvarna Rz4216 Users Manual OM, RZ4216, 2009 11, ZERO TURN
RZ4216 to the manual 9e0aa26e-1884-4e42-be09-a59cfcf230b2
2015-01-24
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Page Count: 57
Operator Manual
RZ4216 / 966455801
Please read the operator’s manual carefully and make sure you
understand the instructions before using the machine.
©2009 Husqvarna. All rights reserved.
Beatrice, NE. Printed in U.S.A.
In order to implement improvements, specications and designs can be altered without
prior notication.
Note that no legal demands can be placed based on the information contained in these
instructions.
Use only original parts for repairs. The use of other parts voids the warranty.
Do not modify or install non-standard equipment to the unit without consent from the
manufacturer. Modications to the unit may cause unsafe operations or damage the unit.
When this product is worn out and no longer used, it should
be returned to the reseller or other party for recycling.
WARNING!
Failure to follow cautious operating practices can result in serious injury to the
operator or other persons. The owner must understand these instructions, and must
allow only trained persons who understand these instructions to operate the mower.
Each person operating the mower must be of sound mind and body and must not be
under the inuence of any mind altering substance.
WARNING!
Engine exhaust, some of its constituents, and certain vehicle components contain or
emit chemicals known to the State of California to cause cancer and birth defects or
other reproductive harm.
WARNING!
Battery posts, terminals and related accessories contain lead and lead compounds,
chemicals known to the State of California to cause cancer and birth defects or other
reproductive harm. Wash hands after handling.
5
Congratulations
Thank you for purchasing a Husqvarna ride-on
mower. This machine is built for superior efciency
to rapidly mow primarily large areas. A control panel
easily accessible to the operator and a hydrostatic
transmission regulated by steering controls both
contribute to the machine’s performance.
This manual is a valuable document. Read the
contents carefully before using or servicing the
machine. The following of instructions (use, service,
maintenance, etc.) by all who operate this machine
is important for the safety of the operator and others.
It can also considerably increase the life span of the
machine and increase its resale value.
If you sell your machine, be sure to give the operator’s
manual to the new owner.
The nal chapter of this operator’s manual provides a
Service Journal. Ensure that service and repair work
are documented. A well-kept service journal reduces
service costs for the maintenance and affects the
machine’s resale value. Please contact your dealer for
more information. Take the operator’s manual along
when the machine is taken to your dealer for service.
General
In this operator’s manual, left and right, backward and
forward are used in relation to the machine’s normal
driving direction.
Continuous dedication to improve our products require
that specications and design are subject to change
without notice.
Driving and Transport on Public Roads
Check applicable road trafc regulations before
transporting on public roads. If the machine is
transported, you must always use approved fastening
equipment and ensure that the machine is well
anchored. DO NOT operate this machine on public
roadways.
Towing
If machine is equipped with a tow hitch, use extreme
caution when towing. Never allow children or others in
or on towed equipment.
Make wide turns to avoid jack-kning. Travel slowly
and allow extra distance to stop. Do not tow on sloped
ground. The weight of the towed equipment may
cause loss of traction and loss of control.
Follow the manufacturer’s recommendation for weight
limits for towed equipment. Do not tow near ditches,
canals, and other hazards.
Operating
This machine is constructed only for mowing grass
on lawns and even ground without obstacles such
as stones, tree stumps, etc. The machine can also
be used for other tasks when equipped with special
accessories provided by the manufacturer. Operating
instructions for the accessories are provided with
delivery. All other types of uses are incorrect. The
manufacturer’s directions concerning operation,
maintenance, and repairs must be carefully followed.
Lawn mowers and all power equipment, can be
potentially dangerous if used improperly. Safety
requires good judgement, careful use in accordance
with these instructions and common sense.
The machine must only be operated, maintained,
and repaired by persons familiar with the
machine’s special characteristics and who are also
knowledgeable about the safety instructions. Use only
approved repair parts to maintain this machine.
Accident prevention regulations, other general safety
regulations, occupational safety rules, and trafc
regulations must be followed without fail.
Unauthorized modications to the design of the
machine may absolve the manufacturer from liability
for any resulting personal injury or property damage.
6
Good Service
Husqvarna’s products are sold all over the world
and only in specialized retail stores with complete
service.. This ensures that you as a customer receive
only the best support and service. Before the product
is delivered, the machine has, for example, been
inspected and adjusted by your retailer. See the
certicate in the Service Journal in this operator’s
manual.
When you need spare parts or support in service
questions, warranty issues, etc., please consult
the following professional:
Manufacturing Number
The machine’s manufacturing number can be found
on the printed plate afxed to the left in the engine
compartment. Stated on the plate, from the top are:
The machine’s type designation (I.D.).•
The manufacturer’s type number (Model).•
The machine’s serial number (Serial no.)•
Please have the type designation and serial number
available when ordering spare parts.
The engine’s manufacturing number is stamped on
one of the valve covers.
The plate states:
The engine’s model.•
The engine’s type.•
Code•
Please have these available when ordering spare
parts.
The wheel motors and hydrostatic pumps have a
barcode decal afxed at the rear.
This Operator’s Manual belongs to the machine with
the manufacturing number:
Engine Transmission
7
R N
These symbols are found on the machine and in the
operator’s manual.
Study them carefully so that you know what they
mean.
IMPORTANT INFORMATION
Xxxx xxxxxx xxxxx xxxx xxxxxxxxx xxxxxx
xxxxxxxxx. xx xxxxxxxx xxxx xxxxxx.
Reverse Neutral Fast Slow Choke Fuel
Warning! Parking Brake CE conformity Warning! Rotating blades, Do not touch parts
marking. Only for keep away from the
European market discharge deck
Battery acid is corrosive, explosive and ammable Do not stand here
Noise emissions to the
surroundings in accordance with
the European Union’s directive.
The machine’s emission is stated
in the chapter TECHNICAL DATA
and on the decals.
Only machines for European
market
Use protective glasses Use protective gloves
WARNING!
Xxxx xxxxxx xxxxx xxxx xxxxxxxxx
xxxxxx xxxxxxxxx. xx xxxxxxxx xxxx
xxxxxx.
Used in this publication to notify the reader of a risk
of personal injury or death, particularly if the reader
should neglect to follow instructions given in the
manual.
Used in this publication to notify the reader of a risk
of material damage, particularly if the reader should
neglect to follow instructions given in the manual.
Used also when there is a potential for misuse or
misassembly.
8
Read Shut off engine and Keep a safe Use on slopes No passengers
Operator’s remove key before distance from no greater
Manual performing any the machine than 10°
maintenance or repair work
Whole body Severing of ngers Do not open or Careful backing up, Careful going
exposure to and toes remove safety watch for other forward, watch for
thrown objects shields while people other people
engine is running
Moving sharp blades under cover
9
WARNING!
This symbol means that important
safety instructions need to be
emphasized. It concerns your safety.
Safety Instructions
These instructions are for your safety. Read them carefully.
General Operation
Read, understand, and follow all instructions on •
the machine and in the manual before starting.
Do not put hands or feet near rotating parts or •
under the machine. Keep clear of the discharge
opening at all times.
Only allow responsible adults, who are familiar •
with the instructions, to operate the machine.
Clear the area of objects such as rocks, toys, wire, •
etc., which could be picked up and thrown by the
blades.
Be sure the area is clear of bystanders before •
operating. Stop machine if anyone enters the
area.
Never carry passengers. The machine is only •
intended for use by one person.
Do not mow in reverse unless absolutely •
necessary. Always look down and behind before
and while backing.
Never direct discharged material toward anyone. •
Avoid discharging material against a wall or
obstruction. Material may ricochet back toward
the operator. Stop the blades when crossing
gravel surfaces.
Do not operate machine without the entire grass •
catcher, discharge guard, or other safety devices
in place and working
Slow down before turning.•
Never leave a running machine unattended. •
Always turn off blades, set parking brake, stop
engine, and remove keys before dismounting.
Disengage blades when not mowing. Shut •
off engine and wait for all parts to come to a
complete stop before cleaning the machine,
removing the grass catcher, or unclogging the
discharge guard.
8011-512
Read the operator’s manual before starting the machine
8011-513
Clear the area of objects before mowing
WARNING!
THIS CUTTING MACHINE IS CAPABLE
OF AMPUTATING HANDS AND FEET
AND THROWING OBJECTS. FAILURE
TO OBSERVE THE FOLLOWING
SAFETY INSTRUCTIONS COULD
RESULT IN SERIOUS INJURY OR
DEATH.
10
Operate machine only in daylight or good articial •
light.
Do not operate the machine while under the •
inuence of alcohol or drugs.
Watch for trafc when operating near or crossing •
roadways.
Use extra care when loading or unloading the •
machine into a trailer or truck.
Always wear eye protection when operating •
machine.
Data indicates that operators age 60 years and •
above are involved in a large percentage of riding
mower-related injuries. These operators should
evaluate their ability to operate the riding mower
safely enough to protect themselves and others
from serious injury.
Follow the manufacturer’s recommendation for •
wheel weights or counterweights.
Anyone who operates this machine must rst read •
and understand this Operation Manual. Local laws
may regulate the age of the user.
Keep machine free of grass, leaves or other •
debris buildup which can touch hot exhaust or
engine parts and burn. Do not allow the mower
deck to plow leaves or other debris which can
cause buildup to occur. Clean any oil or fuel
spillage before operating or storing the machine.
Allow machine to cool before storage.•
8011-520
Never take passengers
WARNING!
Engine exhaust and certain vehicle
components contain or emit
chemicals considered to cause
cancer, birth defects, or other
reproductive system damage. The
engine exhaust contains carbon
monoxide, which is an odorless,
colorless, poisonous gas. Do not use
the machine in enclosed spaces.
11
Personal Safety Equipment
Make sure that you have rst aid equipment close •
at hand when using the machine.
Never use the machine when barefoot.•
Always wear protective shoes or boots, preferably •
with steel toe caps.
Always wear approved protective glasses or a full •
visor when assembling or driving.
Always wear gloves when handling the blades.•
Never wear loose clothing that can get caught in •
moving parts.
Use ear protectors to avoid damage to hearing.•
Slope Operation
Slopes are a major factor related to loss of control and
tip-over accidents, which can result in severe injury or
death. Operation on all slopes requires extra caution.
If you cannot back up the slope or if you feel uneasy
on it, do not mow it.
Mow up and down slopes (10 degrees maximum), •
not across.
Watch for holes, ruts, bumps, rocks, or other •
hidden objects. Uneven terrain could overturn the
machine. Tall grass can hide obstacles.
Choose a low ground speed so that you will not •
have to stop while on the slope.
Do not mow on wet grass. Tires may lose traction.•
Avoid starting, stopping, or turning on a slope. If •
the tires lose traction, disengage the blades and
proceed slowly straight down the slope.
Keep movement on the slopes slow and gradual. •
Do not make sudden changes in speed or
direction, which could cause machine to roll over.
Use extra care while operating machine with •
grass catchers or other attachments; they can
affect the stability of the machine.
Do not use on steep slopes.•
Do not try to stabilize the machine by putting a •
foot on the ground.
Do not mow near drop-offs, ditches, or •
embankments. The machine could suddenly roll
over if a wheel is over the edge or if the edge
caves in.
WARNING!
When using the machine, approved personal protective equipment (shown in illustrations)
shall be used. Personal protective equipment cannot eliminate the risk of injury but it
will reduce the degree of injury if an accident does happen. Ask your retailer for help in
choosing the right equipment.
8011-670a
Personal protective equipment
6003-004
Mow up and down, not side to side
WARNING!
Do not drive up or down hills with
slopes greater than 10 degrees. Do
not drive across any slopes.
12
8011-517
Never allow children to operate the machine
8011-518
Keep children away from work area
Children
Tragic accidents can occur if the operator is not
alert to the presence of children. Children are often
attracted to the machine and the mowing activity.
Never assume that children will remain out of the path
of danger.
Keep children out of the mowing area and in the 1.
watchful care of a responsible adult other than the
operator.
Be alert and turn machine off if a child enters the 2.
area.
Before and while backing, look behind and down 3.
for small children.
Never carry children, even with the blades shut 4.
off. They may fall off and be seriously injured or
interfere with safe machine operation. Children
who have been given rides in the past may
suddenly appear in the mowing area for another
ride and be run over or backed over by the
machine.
Never allow children to operate the machine.5.
Use extra care when approaching blind corners, 6.
shrubs, trees, or other objects that may block the
view of a child.
13
8011-516
Never fill the fuel tank indoors
Safe Handling of Gasoline
To avoid personal injury or property damage, use
extreme care in handling gasoline. Gasoline is
extremely ammable and the vapors are explosive.
Extinguish all cigarettes, cigars, pipes, and other 1.
sources of ignition.
Use only approved gasoline container.2.
Never remove gas cap or add fuel with the engine 3.
running. Allow engine to cool at least two (2)
minutes before refueling.
Never fuel the machine indoors.4.
Never store the machine or fuel container where 5.
there is an open ame, spark, or pilot light such
as on a water heater or other appliance.
Before beginning to refuel, minimize the risk of 6.
static electricity by touching a metal surface.
Never ll containers inside a vehicle or on a truck 7.
or trailer bed with plastic liner. Always place
containers on the ground away from the vehicle
when lling.
Remove gas-powered equipment from the truck 8.
or trailer and refuel it on the ground. If this is not
possible, refuel such equipment with a portable
container, rather than from a gasoline dispenser
nozzle.
Keep the nozzle in contact with the rim of the fuel 9.
tank or container opening at all times until fueling
is complete. Do not use a nozzle lock-open
device.
If fuel is spilled on clothing, change clothing 10.
immediately.
Never overll fuel tank. Replace gas cap and 11.
tighten securely.
Do not start the engine near spilled fuel.12.
Never use gasoline as a cleaning agent.13.
If leaks arise in fuel system, engine must not be 14.
started until problem has been resolved.
Check the fuel level before each use and leave 15.
space for the fuel to expand, as the heat from the
engine and the sun may otherwise cause the fuel
to expand and overow.
WARNING!
The engine must not be started when the driver’s oor plate or any protective plate for the
mower deck’s drive belt is removed.
WARNING!
The engine and the exhaust system
become very hot during operation.
There is risk for burns if touched.
Allow engine and exhaust system to
cool at least two (2) minutes before
refueling.
14
8011-515
Never drive the machine in an enclosed space
General Maintenance
Never operate machine in a closed area.•
Keep all nuts and bolts tight to be sure the •
equipment is in safe working condition.
Never tamper with safety devices. Check their •
proper operation regularly.
Keep machine free of grass, leaves, or other •
debris buildup. Clean oil or fuel spillage and
remove any fuel-soaked debris. Allow machine to
cool before storing.
If the machine strikes a foreign object, stop and •
inspect the machine. Repair, if necessary, before
restarting.
Never make any adjustments or repairs with the •
engine running.
Check grass catcher components and the •
discharge guard frequently and replace with
manufacturer’s recommended parts, when
necessary.
Mower blades are sharp. Wrap the blade or wear •
gloves, and use extra caution when servicing
them.
Check brake operation frequently. Adjust and •
service as required.
Maintain or replace safety and instruction labels, •
as necessary.
Do not modify safety equipment. Check regularly •
to be sure it works properly. The machine must not
be driven with defective or unmounted protective
plates, protective cowlings, safety switches, or
other protective devices.
Do not change the settings of governors and •
avoid running the engine with overly high engine
speeds. If the engine runs too fast, there is risk for
damaging the machine components.
Be very careful when handling battery acid. Acid •
on skin can cause serious corrosive burns. If
battery acid is spilled on skin, rinse immediately
with water.
Acid in the eyes can cause blindness, contact a •
doctor immediately.
Be careful when servicing the battery. Explosive •
gases form in the battery. Never perform
maintenance on the battery when smoking or near
open ames or sparks.
The battery can explode and cause serious injury •
or damage.
Ensure that the equipment is in good condition •
and that all nuts and bolts, especially those
fastening the blade attachments, are properly
tightened and torqued.
WARNING!
The battery contains lead and lead
compounds, chemicals that are
considered to cause cancer, birth
defects, and other reproductive
system damage. Wash your hands
after handling the battery.
WARNING!
Use protective glasses for
maintenance work.
15
Sparking can occur when working with the battery
and the heavy cables of the starter circuit. This can
cause battery explosion, re or eye injury. Sparking
in this circuit can not occur after the chassis cable
(normally negative, black) is removed from the battery.
Use protective goggles.•
Ensure that the fuel ller cap is mounted tightly •
and no ammable substances are stored in an
open vessel.
6003-009
Do not smoke when performing maintenance on the battery.
The battery can explode and cause serious injury/damage.
8009-728
Risk of sparking
WARNING!
Avoid electrical sparking and its
consequences by the following
routines:
8011-514
Regularly clean deck
Never work with the starter circuit if there is spilled •
fuel.
Disconnect the negative cable from the battery •
rst and reconnect it last.
Do not make a bridge short circuit across the •
starter relay to run the starter.
Never use the machine indoors or in spaces •
lacking proper ventilation. The exhaust fumes
contain carbon monoxide, an odorless,
poisonous, and lethal gas.
Stop to inspect the equipment if the machine runs •
over or into anything. If necessary, make repairs
before starting.
Never make adjustments with the engine running.•
The machine is tested and approved only with the •
equipment originally provided or recommended
by the manufacturer. Only use approved repair
parts for the machine.
The blades are sharp and can cause cuts and •
gashes. Wrap the blades or use protective gloves
when handling them.
Check the parking brake’s functionality regularly. •
Adjust and service as necessary.
The mulch blades should only be used in familiar •
areas when higher quality mowing is desired.
Reduce the risk of re by removing grass, leaves, •
and other debris that may have accumulated on
the machine.
Allow the machine to cool before putting it in •
storage.
Regularly clean deck and underside of deck, •
avoid spraying engine and electrical components
with water.
16
IMPORTANT INFORMATION
The parking brake is not sufcient to lock the
machine in place during transport. Ensure that
the machine is well fastened to the transport
vehicle. Always reverse the machine onto the
transport vehicle to avoid tipping it over.
WARNING!
Escaping hydraulic oil under
pressure can have sufcient force
to penetrate the skin, causing
serious injury. If injured by escaping
uid, see a doctor at once. Serious
infection or reaction can develop
if proper medical treatment is not
administered immediately.
Transport
The machine is heavy and can cause serious •
crushing injuries. Be extra cautious when it is
loaded on or unloaded from a vehicle or trailer.
Use an approved trailer to transport the machine. •
Activate the parking brake, turn off the fuel supply,
and fasten the machine with approved fastening
devices, such as bands, chains, or straps, when
transporting.
Do not operate this machine on public roadways.•
Check and abide by local trafc regulations •
before transporting the machine on any road.
Do not tow this machine: it may cause damage to •
the drive system.
Load the unit onto truck or trailer by driving up •
ramps of suitable strength using a slow speed. Do
not lift! The machine is not intended to be lifted by
hand.
Towing
If machine is equipped with a tow hitch, use extreme
caution when towing. Never allow children or others in
or on towed equipment..
Make wide turns to avoid jack-kning. Travel slowly
and allow extra distance to stop. Do not tow on sloped
ground. The weight of the towed equipment may
cause loss of traction and loss of control.
Follow the manufacturer’s recommendation for weight
limits for towed equipment. Do not tow near ditches,
canals, and other hazards.
Spark Arrestor
A spark arrestor for the mufer is available through
your authorized Husqvarna dealer.
WARNING!
This mower is equipped with an
internal combustion engine and
should not be used on or near any
unimproved forested, bush covered
or grassy lands unless the engine's
system is equipped with a spark
arrestor meeting applicable local or
state laws (if any).
17
This operator’s manual describes the Husqvarna Zero
Turn Rider. The rider is tted with a Briggs & Stratton
16 HP* four-stroke overhead valve engine.
Transmission from the engine is made via belt-driven
hydraulic pumps. Using the left and right steering
controls, the ow is regulated and thereby the
direction and speed.
Cutting height handle1.
Park brake2.
Choke/throttle control3.
Ignition switch4.
Motion control levers5.
Blade control lever6.
Fuel tank cap7.
Fuel shut off valve8.
Bypass linkage9.
Control Locations
8058-070
*The power rating of the engines indicated is the average
net power output (at specied rpm) of a typical production
engine for the engine model measured to SAE standard
J1349/ISO1585. Mass production engines may differ from
this value. Actual power output for the engine installed
in the nal machine will depend on the operating speed,
environmental conditions and other variables.
18
8050-003
Steering controls
Steering Control Levers
The machine’s speed and direction are continuously
variable using the two steering controls. The steering
controls can be moved forward or backward about
a neutral position. Furthermore, there is a neutral
position, which is locked if the steering controls are
moved outward.
When both controls are in the neutral position (N), the
machine stands still.
By moving both controls an equal amount forward
or backward, the machine moves in a straight line
forward or backward respectively.
In order, for example, to turn right while moving
forward, move the right control towards the neutral
position. The rotation of the right wheel is reduced and
the machine turns to the right.
Zero turn can be achieved by moving one control
backward (behind the neutral position) and carefully
moving the other steering control forward from its
neutral position. The rotation direction when zero
turning is determined by which steering control is
moved backward behind the neutral position. If the left
steering control is pulled backward, the machine turns
to the left. Use extra care when using this maneuver.
If the steering controls are in uneven positions when
standing still or do not t in the slots for moving the
controls outward, they can be adjusted.
8050-004
1. Forward
2. Neutral
3. Neutral slot, Neutral lock
4. Reverse
Motion control lever, right side
WARNING!
The machine can turn very rapidly if
one steering control is moved much
further forward than the other.
19
Throttle Control
The throttle control regulates the engine speed and
thereby the rate of rotation of the blades.
In order to increase or decrease the engine speed,
the control is moved forward or back respectively.
Avoid idling the engine for long periods, as there is a
risk of fouling the spark plugs.
USE FULL THROTTLE WHEN MOWING, for best
mower performance and battery charging.
Parking Brake
The parking brake is found on the right side of the
machine. Pull the lever backward to activate the brake
and forward to release it.
IMPORTANT INFORMATION
The machine must stand absolutely still when
applying the parking brake. Always set the
parking brake before dismounting. Release
the parking brake before moving the mower.
Ignition Switch
The ignition key is placed on the control panel and is
used to start and stop the engine.
IMPORTANT INFORMATION
Do not run the starter for more than ve
seconds each time. If the engine does not
start, wait about 10 seconds before retrying.
8050-005
Parking brake not activated
8050-006
Throttle control
8050-006
Ignition switch
20
Choke Control
The choke control is used for cold starts in order to
provide the engine with a richer fuel mixture.
For cold starts the throttle knob should be pushed
forward all of the way.
Refueling
Read the safety instructions before refueling. The
machine has one fuel tank, just behind the seat. The
tank volume is 3 gallons (11.4 liters).
Make sure the fuel cap is properly tightened and the
cap gasket is not damaged.
The engine will run on a minimum of 85-octane
unleaded gasoline (no oil mix). Environmentally
adapted alkylate gasoline can be used. See also
Technical Data concerning ethanol fuel. Methanol fuel
is not allowed. Do not use E85 alcohol based fuel.
Damage to engine and components may occur.
WARNING!
Fill to bottom of ller neck. Do not
overll. Wipe off any spilled oil or fuel.
Do not store, spill or use gasoline near
an open ame.
WARNING!
The engine and the exhaust system,
become very hot during operation.
Risk for burns if touched.
Allow engine and exhaust system to
cool at least two (2) minutes before
refueling
WARNING!
Gasoline is highly ammable. Observe
caution and ll the tank outdoors (see
the safety instruction).
IMPORTANT INFORMATION
Experience indicates that alcohol blended
fuels (called gasohol, ethanol or methanol)
can attract moisture which leads to separation
and formation of acids during storage. Acidic
gas can damage the fuel system of an engine
while in storage. To avoid engine problems,
the fuel system should be emptied before
storage of 30 days or longer. Drain the gas
tank, start the engine and let it run until the
fuel lines and carburetor are empty. Use fresh
fuel the next season. See Storage Instructions
for additional information. Never use engine
or carburetor cleaners in the fuel tank or
permanent damage may occur.
8050-007
Choke control
8050-012
Fuel tank
21
Fuel Shut Off Valve
The fuel shut off valve is located in the fuel line under
the seat. Tilt seat forward for access. The fuel valve is
ON when the valve is parallel to the fuel line. Rotate
the valve ¼ turn clockwise to turn fuel OFF.
8050-010
Fuel shut off valve in the OPEN position.
8058-085
The mower deck’s lifting lever
Mower Deck Lifting Lever
The lifting lever is used to place the mower deck in
the transport position or one of the 6 different cutting
height positions.
The cutting height is set by placing a lever in the
notch for the desired cutting height.
The lifting lever can also be used to temporarily adjust
the cutting height, such as when passing a minor
bump in the lawn.
IMPORTANT INFORMATION
In order to obtain an even cutting height, it is
important that the air pressure is 15 psi in all
tires.
IMPORTANT INFORMATION
Always use the high position (F) to transport.
Tracking
If the mower is not tracking straight, check the
air pressure in both rear tires. Recommended air
pressure is 15 psi. (1 bar) Tracking must be checked
on a at and level concrete or blacktop surface.
If the unit still does not track straight contact your
Husqvarna workshop for adjustments.
22
Manual Transport
When pushing or pulling the mower, be sure to
engage the EZT Hydrogear bypass linkages. The EZT
bypass linkages are located on the rear of the frame,
below the rear engine guard.
Raise the deck into the highest cutting position.•
Pull the EZT bypass linkages out and into the •
slots. Release linkages to hold in the bypass
position.
Release park brake.•
To reengage the EZT’s to drive, reverse the above •
procedure.
8050-018
Set bypass linkages into slots on both sides
Blade Control Lever
To engage the mower blades, slowly lift the lever up
and into the the lock notch.
8058-074
Mower deck blade control lever in the disengaged position
WARNING!
No adjustments or maintenance to be
carried out unless:
the engine stopped•
the ignition key removed•
the parking brake activated•
23
Read the Safety section and following pages, if you
are unfamiliar with the machine.
Training
Zero turn mowers are far more maneuverable than
typical riding mowers due to their unique steering
capabilities.
We suggest that this section be reviewed in its entirety
prior to attempting to move the mower under its own
power. Additionally, we suggest when rst operating
the mower, use a reduced throttle speed and reduced
ground speed by NOT moving control levers to the
furthest forward or reverse positions during initial
operation, or until operator becomes comfortable
with controls. We also suggest rst time users, or new
users to Zero Turn mowers to become familiar with
the mower’s movement on a hard surface, such as
concrete or blacktop PRIOR to attempting to operate
on turf. Until operator becomes comfortable with
mower controls and zero turning capability, they may
damage turf due to overly aggressive maneuvers.
IMPORTANT INFORMATION
When control levers are in the reverse position
they return to neutral when released. This may
cause the mower to suddenly stop.
Steering
To move forward and backward
The direction and speed of the mower’s movements
is effected by the movement of the control lever(s)
on each side of mower. The left control lever controls
the left wheel. The right control lever controls the right
wheel.
First time users should push mower (see Manual
Transport in the Operation section) to an open, at
area, without other people or vehicles/obstacles
nearby. In order to move unit under its own power,
the operator must be in the seat, start engine (see
Before Starting in Operation section), adjust engine
speed to idle, disengage parking brake, do not
engage blades at this time, rotate control levers
inward. As long as the control levers have not been
moved forward or backwards, mower will not move.
Slowly move both control levers forward slightly. This
will allow mower to start moving forward in a straight
line. Pull back on control levers to the neutral position
and mower should stop moving. Pull back slightly on
control levers, this will allow mower to start moving
backwards. Push forward on control levers to the
neutral position and mower should stop moving.
To turn to the right
While moving in a forward direction, pull the right lever
back towards the neutral position while maintaining
the position of the left lever, this will slow the rotation
of the right wheel and cause the machine to turn in
that direction.
To turn to the left
While moving in a forward direction pull the left lever
back towards the neutral position while maintaining
the position of the right lever, this will slow the rotation
of the left wheel and cause the machine to turn in that
direction.
To zero turn
While moving in a forward direction, rst pull both
control levers back until the mower stops or slows
dramatically.
Then by alternating one lever slightly to the forward
position and the other in the reverse position.
24
Before Starting
Read the sections Safety Instructions and •
Controls before starting the machine.
Perform the daily maintenance before starting •
(see Maintenance Schedule in the Maintenance
section).
Check that there is sufcient fuel in the fuel tank.•
Adjust the seat to the desired position.•
The following conditions must be fullled before the
engine can be started:
The driver must be seated on the seat.•
The blade control lever for engaging the mower •
blades must be down in the lower position.
The parking brake must be on.•
Both steering controls must be in the locked •
(outer) neutral position.
Starting the Engine
Sit on the seat.1.
Raise the mower deck by pulling the lifting lever 2.
upward to the transport position (F).
Activate the parking brake.3.
Disengage the mower blades by lowering the blade
control lever out of the lock notch and into the down
position.
8050-020
Start conditions
8058-085
Raise the mower deck
8058-074
Set the blade control lever to the down position
25
Move the steering controls outward to the locked
(outer) neutral position.
Move the throttle to the middle position.
If the engine is cold, the choke control should be
pushed forward to its extent.
8050-008
Set the throttle
8050-028
Place controls in neutral position
8050-007
Choke control
26
8050-135
Turn to START position
8050-136
Release ignition to the RUN position
8050-010
Open the fuel valve
Open the fuel valve.
Press in and turn the ignition key to the start position
When the engine starts, immediately release the
ignition key back to the run position.
IMPORTANT INFORMATION
Do not run the starter for more than 5 seconds
each time. If the engine does not start, wait
approximately 10 seconds before retrying.
27
Slowly slide the choke control back to the middle
position when the engine has started.
Set the desired engine speed with the throttle. Allow
the engine to run at a moderate speed, “half throttle”
for 3-5 minutes before loading it to heavily. USE FULL
THROTTLE WHEN MOWING (no choke).
WARNING!
Engine exhaust and certain vehicle
components contain or emit chemicals
considered to cause cancer, birth
defects, or other reproductive system
damage. The engine exhaust contains
carbon monoxide, which is a odorless,
colorless, poisonous gas. Do not use
the machine in enclosed spaces.
8050-007
Use full throttle when mowing
8011-642
Jumper cable connection
IMPORTANT INFORMATION
Your mower is equipped with a 12-volt
negative grounded system. The other vehicle
must also be a 12-volt negative grounded
system. Do not use your mower to start other
vehicles.
If your battery is too weak to start the engine, it should
be recharged. (See Battery in the Maintenance
section.)
If jumper cables are used for emergency starting,
follow this procedure:
Jumper cables
Connect each end of the RED cable to the 1.
POSITIVE (+) terminal on each battery, taking
care not to short against chassis.
Connect one end of the BLACK cable to the 2.
NEGATIVE (-) terminal of the fully charged battery.
Connect the other end of the BLACK cable to a 3.
good CHASSIS GROUND on the mower with the
discharged battery, away from the fuel tank and
battery.
To remove cables, reverse order
Remove BLACK cable rst from chassis and then 1.
from the fully charged battery.
Remove RED cable last from both batteries.2.
WARNING!
Lead-acid batteries generate
explosive gases. Keep sparks,
ame and smoking materials away
from batteries. Always wear eye
protection when around batteries.
28
Running
Release the parking brake by moving the lever 1.
downward.
NOTE: The mower is equipped with an operator
presence system. When the engine is running,
any attempt by the operator to leave the seat
without rst setting the parking brake will shut off
the engine.
Move the steering controls to the neutral position 2.
(N).
WARNING!
Ensure that no one is near mower when
engaging blade control lever.
Select the cutting height by placing the lever into 3.
the desired notch.
Engage the mower blade by sliding the lever 4.
upwards and into the lock notch.
Move throttle control to full throttle.5.
The machine’s speed and direction are 6.
continuously variable using the two steering
controls. When both controls are in the neutral
position, the machine stands still.
By moving both controls an equal amount forward
or backward, the machine moves in a straight line
forward or backward respectively.
In order, for example, to turn right while moving
forward, move the right control towards the neutral
position. The rotation of the right wheel is reduced
and the machine turns to the right.
Turning on the spot (zero turn) can be achieved
by moving one control backward (behind the
neutral position) and carefully moving the other
steering control forward from its neutral position.
8050-005
Parking brake not activated
8058-085
Mower deck’s lifting lever
8058-075
Mower blade control lever locked into blade engagement
29
WARNING!
Do not drive up or down hills with
slopes greater than 10 degrees. Do not
drive across slopes.
Operating on Hills
Read the Safety Instructions Driving on Slopes in the
Safety Instructions.
The slowest speed possible should be used •
before starting up or down hills.
Avoid stopping or changing speed on hills.•
If stopping is absolutely necessary, pull drive •
levers into the neutral position and push to the
outside of the unit and engage the parking brake.
To restart movement, release the parking brake.•
Pull the control levers back to the center of the •
mower and press forward to regain forward
motion.
Make all turns slowly.•
IMPORTANT INFORMATION
When in reverse, control levers return to
neutral when released. This may cause the
mower to suddenly stop.
8050-020
Start conditions
30
Mowing Tips
Observe and ag rocks and other xed objects to •
avoid collisions.
Begin with a high cutting height and reduce it until •
the desired mowing result is attained.
The average lawn should be cut to
2½" (64 mm) during the cool season and over 3"
(76 mm) during the hot months. For healthier and
better looking lawns, mow often after moderate
growth.
For best cutting performance, grass over 6" (15
cm) in height should be mowed twice. Make the
rst cut relatively high, the second to the desired
height.
The mowing result will be best with a high engine •
speed (the blades rotate rapidly) and low speed
(the rider moves slowly). If the grass is not
too long and dense, the driving speed can be
increased without negatively affecting the mowing
result.
The nest lawns are obtained by mowing often. •
The lawn becomes more even and the grass
clippings more evenly distributed over the mown
area. The total time taken is not increased as a
higher operating speed can be used without poor
mowing results.
Avoid mowing wet lawns. The mowing result is •
poorer because the wheels sink into the soft lawn,
clumps build, and the grass clippings fasten
under the cowling.
Hose the mower deck underside with water after •
each use. When cleaning, the mower deck shall
be raised into the transport position. Make sure
the mower is cooled and the engine is off.
Use compressed air to clean top surface of the •
deck. Avoid ooding water on top surface, engine
and electrical components.
When the mulching kit is used, it is important that •
the mowing interval is frequent.
WARNING!
Clear the lawn of stones and other
objects that can be thrown out by the
blades.
WARNING!
Never drive the rider on terrain that
slopes more than 10 degrees. Mow
slopes up and down, never side to side.
Avoid sudden directional changes.
8011-603
Mowing pattern
31
Stopping the Engine
Allow the engine to idle a minute in order to attain
normal operating temperature before stopping it, if
it has been worked hard. Avoid idling the engine for
longer periods, as there is a risk of the spark plugs
fouling.
Disengage the mower deck by sliding the blade •
control lever out of the lock notch and down into
the lower position.
8058-085
Raise the mower deck with the lifting lever
Raise the mower deck by pulling the lifting lever •
upward to the transport position.
When the machine is standing still, activate the •
parking brake by pulling the lever backward.
Move the throttle to the minimum position (tortoise •
symbol). Turn the ignition key to the stop position.
Never use choke to stop the engine.
Move the steering controls outward.•
Remove key. Always remove key when leaving the •
mower to prevent unauthorized use.
IMPORTANT INFORMATION
Leaving the ignition switch in any other
position than “OFF” will cause the battery to
be discharged.
8058-074
Disengage the mower blades
32
Manual Transport
When pushing or pulling the mower, be sure to
engage the EZT Hydrogear bypass linkages. The EZT
bypass linkages are located on the rear of the frame,
below the rear engine guard.
Raise the deck into the highest cutting position.•
Pull the EZT bypass linkages out and into the •
slots. Release linkages to hold in the bypass
position.
Release park brake.•
To reengage the EZT’s to drive, reverse the above •
procedure.
8050-018
Set bypass linkages into slots on both sides
33
Maintenance Schedule
The following is a list of maintenance procedures that
must be performed on the machine. For those points
not described in this manual, visit an authorized
service workshop. An annual service carried out by
Check the parking brake ●
Check the engine’s oil level (every refueling) ■
Check the safety system ●
Check for fuel and oil leakages ♦
Check/clean the engine’s cooling air intake ■
Check the mower deck ●
Check for loose hardware (screws, nuts) ●
Clean under the mower deck ●
Start the engine and blades, listen for unusual sounds ♦
Check for damage ♦
Thoroughly clean around the engine ♦
Clean around belts, belt pulleys ♦
Check the tire pressures ●
Check battery ●
Sharpen/replace mower blades ●
Clean the engine’s cooling air intake 2) ■ ■
Clean the air cleaner’s pre-lter 2) (foam) ■ ■
Clean the air cleaner’s lter cartridge 2) (paper lter) ■ ■
Check/adjust the parking brake ♦ ♦
Maintenance Before After
Daily Weekly At
least
once
each
year
Maintenance interval in
hours
25 50 100 300
an authorized service workshop is recommended to
maintain your machine in the best possible condition
and to ensure safe operation.
Read Maintenance in the Safety section.
1) First change after 5-8 hours. When operating with a heavy load or at high ambient temperatures, replace
every 50 hours.
2) In dusty conditions, cleaning and replacement are required more often.
3) For daily use, the machine should be lubricated twice weekly.
4) Performed by authorized service workshop.
● = Described in this manual
♦ = Not described in this manual
■ = See engine manufacturers’ Owners Manual
34
1) First change after 5-8 hours. When operating with a heavy load or at high ambient temperatures, replace
every 50 hours.
2) In dusty conditions, cleaning and replacement are required more often.
3) For daily use, the machine should be lubricated twice weekly.
4) Performed by authorized service workshop.
● = Described in this manual
♦ = Not described in this manual
■ = See engine manufacturers’ Owners Manual
Check/adjust throttle cable ●
Check the condition of belts, belt pulleys ● ●
Change the engine oil 1) ■ ■
Replace the engine oil lter ■ ■
Clean/replace the spark plugs ■ ■
Check the caster wheels (every 200 hours) ●
Check/adjust the mower deck ● ●
Check the engine valve clearance 4) ♦ ♦
Perform the 300-hour service 4) ♦ ♦
Lubricate according to Lubrication Schedule 3,4) ●●●●●
Maintenance Before After
Daily Weekly At
least
once
each
year
Maintenance interval in
hours
25 50 100 300
WARNING!
Before performing any service or adjustment checklist:
Engage the parking brake.•
Place the Blade-switch in the disengaged position.•
Turn the ignition switch to “OFF” position and remove the key.•
Make sure the blades and all moving parts have completely stopped.•
Disconnect the spark plug wire from all spark plugs and place the wire where it •
cannot come in contact with the plug.
35
Battery
Your mower is equipped with a maintenance free
battery that does not need servicing. However,
periodic charging of the battery with an automotive
type battery charger will extend its life.
Keep battery and terminals clean.•
Keep battery bolts tight.•
Recharge at 6-10 amperes for 1 hour•
To clean battery and terminals
Corrosion and dirt on the battery and terminals can
cause the battery to “leak” power.
Open the terminal access doors.1.
Remove the red terminal guard.2.
Disconnect BLACK battery cable rst, then the 3.
RED battery cable and remove the battery from
the machine.
Rinse the battery with plain water and dry.4.
Clean terminals and battery cable ends with wire 5.
brush until shiny.
Coat terminals with grease or petroleum jelly6.
Reinstall battery.7.
Replacing battery
1. Lift seat and rotate forward.
2. Remove the terminal guard.
3. Using two ½" wrenches disconnect BLACK battery
cable then RED battery cable.
4. Unscrew the knob and remove battery hold down.
5. Carefully remove the battery from the mower.
6. Install new battery with terminals in the same
position as the old battery.
7. Reinstall battery hold down.
8. First connect RED battery cable to positive (+)
battery terminal with hex bolt and hex nut.
9. Connect BLACK grounding cable to negative (-)
battery terminal with remaining hex bolt and hex
nut.
10. Fit the terminal guard.
11. Lower seat.
IMPORTANT INFORMATION
Do not attempt to open or remove caps or
covers. Adding or checking level of electrolyte
is not necessary.
Always use two wrenches for the terminal
screws.
8050-109
Battery cleaning and installation
WARNING!
Do not short battery terminals by
allowing a wrench or any other object
to contact both terminals at the same
time. Before connecting battery, remove
metal bracelets, wristwatch bands,
rings, etc.
Positive terminal must be connected
rst to prevent sparks from accidental
grounding.
Always use protective glasses when
handling the battery.
STANDARD
BATTERY
STATE
OF
CHARGE
APPROXIMATE BATTERY CHARGING TIME*
TO FULL CHARGE AT 80OF / 27OC
Maximum Rate at:
50 Amps 30 Amps 20 Amps 10 Amps
12.6V 100%
- FULL CHARGE -
12.4V 75% 20 min. 35 min. 48 min. 90 min.
12.2V 50% 45 min. 75 min. 95 min. 180 min.
12.0V 25% 65 min. 115 min. 145 min. 280 min.
11.8V 0% 85 min. 150 min. 195 min. 370 min.
*Charging time depends on battery capacity,
condition, age, temperature and efciency of charger
36
Safety System
The machine is equipped with a safety system that
prevents starting or driving under the following
conditions.
The engine can only be started when:
1. The mower deck is disengaged.
2. The steering controls are in the outer, locked
neutral position.
3. The driver is sitting in the driver’s seat.
4. The parking brake is on.
Make daily inspections to ensure that the safety
system works by attempting to start the engine
when one of the conditions is not met. Change the
conditions and try again.
If the machine starts when one of these conditions
is not met, turn the machine off and repair the safety
system before using the machine again.
Make sure the engine stops when the park brake
is not engaged and the operator leaves the seated
position.
Check that the engine stops if the mower blades are
engaged and the driver temporarily moves off the
drivers seat.
IMPORTANT INFORMATION
In order to be able to drive, the driver must
sit in the seat and release the parking brake
before the steering controls can be moved into
the neutral position, otherwise the engine will
stop.
8050-020
Start conditions
Tire Pressures
All tires should be at 15 psi / 103 kPa / 1 bar.
8011-564
Tire pressures
37
Parking Brake
Visually check that no damage is found on the lever,
links, or switch belonging to the parking brake.
Perform a standstill test and check that there is
sufcient braking action.
To adjust the parking brake, contact the Husqvarna
service workshop.
WARNING!
Faulty adjustment can result in reduced
braking ability and can cause an
accident.
8050-005
Check for proper operation of parking brake
V-belts
Check every 100 hours of operation. Check for severe
cracking and large nicks.
NOTE: The belt will show some small cracks in normal
operation.
The belts are not adjustable. Replace belts if they
begin to slip from wear.
Deck Belt
To replace deck belt
Deck belt removal.
Park on a level surface. Apply park brake.1.
Lower the deck to the lowest cutting position.2.
Disengage the clutch by sliding the blade control 3.
lever downwards.
8058-074
Disengage clutch to replace deck belt
8050-013
Check deck belt for excessive wear
Carefully lift the belt away from belt keepers and 4.
off deck pulleys and remove from deck.
Replace belt (refer to the belt routing decal on the 5.
deck) and re-engage clutch.
38
3
2
1
WARNING!
The engine and the exhaust system,
become very hot during operation. Risk
for burns if touched. Allow engine and
exhaust system to cool at least two (2)
minutes.
EZT Belt
To replace EZT belt
Park the mower on a level surface. Engage the park
brake.
EZT belt removal
NOTE: Be careful not to damage the fan blades on
the EZT as this can affect cooling or damage the EZT.
Remove the deck belt (see 1. To Replace Deck Belt
in this section of the manual).
Create slack in the belt by pushing the spring 2.
loaded idler arm inward. Rotate arm to release
belt tension.
The belt should now be able to be removed from 3.
the engine pulley and EZT pulleys.
Belt installation
Wrap the EZT belt around the EZT pulleys.1.
Route the belt around the inside of the idler pulley.2.
Wrap the belt around the engine pulley.3.
Cutting Blades
In order to attain the best mowing effect, it is important
that the blades are well sharpened and not damaged.
Bent or cracked blades or blades with large nicks
should be replaced.
Damaged blades should be replaced when hitting
obstacles that result in a breakdown. Let the service
workshop decide whether the blade can be repaired/
ground or must be replaced.
Balance the blades after sharpening.
Check the blade mounts.
Blade replacement
Remove blade bolt by turning counterclockwise.1.
Install new or resharpened blade with stamped 2.
“GRASS SIDE” facing towards ground/grass
(down) or “THIS SIDE UP” facing deck and cutter
housing.
Install and tighten blade bolt securely.3.
Torque blade bolt to 45-55 ft/lbs (60-75 Nm).4.
WARNING!
Blades are sharp. Protect your hands
with gloves and/or wrap blades with a
heavy cloth when handling.
The sharpening of blades should be
carried out by an authorized service
workshop.
IMPORTANT INFORMATION
Special blade bolt is heat treated.
Replace with a Husqvarna bolt if required.
Do not use lower grade hardware than
specied.
8052-007
1. Blade
2. Cutter housing
3. Blade bolt (special)
Blade attachment
39
Adjusting the Mower Deck
Check the tire pressure before adjustment of the
mower deck. See Checking Tire Pressure in
Maintenance. Faulty mower deck adjustments will
cause an uneven mowing result.
Leveling Deck
Position the mower on a level, preferably 1.
concrete, surface.
Check the pressure in all four tires. See 2. Technical
Data section.
Rotate blade to align side to side.3.
Turn front adjuster nut(s) to level deck side to 4.
side.
WARNING!
Before performing any service or adjustment checklist:
1. Engage the parking brake.
2. Place the Blade switch in the disengaged position.
3. Turn ignition switch to “OFF” position and remove the key.
4. Make sure the blades and all moving parts have completely stopped.
5. Disconnect the spark plug wire from all spark plugs and place the wire where it cannot
come in contact with the plug.
WARNING!
Blades are sharp. Protect your hands
with gloves and/or wrap blades with a
heavy cloth when handling.
IMPORTANT INFORMATION
This procedure will place the mower in a base
measurement position. Additional adjustment
may be required to achieve desired cut for the
type of grass or conditions involved.
8050-015
Side to side adjuster nut
40
1
2
3
Caster Wheels
Check every 200 hours. Check that wheels rotate
freely. If wheels do not rotate freely take the unit to
your dealer for service.
Foam lled tires or solid tires will void the warranty.
Removal and installation of caster wheel
Remove nut (1) and caster bolt (2).1.
Pull the wheel out of the fork and take care of the 2.
sleeve (3).
Reinstall in reverse order. Tighten caster bolt.3.
8050-001
Caster wheels
IMPORTANT INFORMATION
DO NOT add any type of tire liner or foam ll
material to the tires. Excessive loads created
by foam lled tires will cause premature
failures.
Only use O.E.M. specied tires.
Cleaning
Regular cleaning and washing, especially under the
mower deck, will increase the machine’s life-span.
Make it a habit to clean the machine directly after use
(after it is cooled), before the debris sticks.
Use compressed air to clean the top side of mower
deck. For cleaning the underside of the deck, use the
cleanout port.
Attach the quick connect (from the accessory packet)
to any garden hose. After mowing, snap the hose to
the cleanout port and turn on water.
Restart the mower and engage the blades to use the
spinning action to wash away debris. Make sure the
hose is away from the mower blades.
Avoid spraying water on the engine and electrical
components.
8058-084
Clean regularly
Use protective glasses when
cleaning and washing.
Hardware
Check daily. Inspect the entire machine for loose or
missing hardware.
41
General
Remove the ignition key to prevent unintentional
movements during lubrication.
When lubricating with an oil can, it must be lled with
engine oil.
When lubricating with grease, unless otherwise stated,
use a high grade molybdenum disulphide grease.
For daily use, the machine should be lubricated twice
weekly.
8058-072
Wipe away excess grease after lubrication.
It is important to avoid getting lubricant on the belts
or the drive surfaces on the belt pulleys. Should this
happen, attempt to clean them with spirits. If the belt
continues to slip after cleaning, it must be replaced.
Gasoline or other petroleum products must not be
used to clean belts.
42
Front Wheel Mount
Lubricate with a grease gun, one zerk for each wheel
mount, until the grease is forced out.
Use only good quality bearing grease.
Grease from well-known brand names (petrochemical
companies, etc.) usually maintains a good quality.
Front Wheel Bearings
Lubricate with a grease gun, one zerk for each set of
wheel bearings, until the grease is forced out.
Use only good quality bearing grease.
IMPORTANT INFORMATION
Use minimal lubrication and remove excess
lubricant so that is does not come into contact
with belts or belt pulley drive surfaces.
8050-009
Lubricating the wheel bearings
Engine Lubrication
Refer to the engine manufacturer's manual for
maintenance and service instructions.
Steering Control Shafts
Tip the driver’s seat.
Lubricate with a grease gun, one zerk for each
steering control shaft, until the grease is forced out.
Use only good quality molybdenum disulphide
grease.
Grease from well-known brand names (petrochemical
companies, etc.) usually maintains a good quality.
8058-076
Lubricating the steering control shafts
43
Problem Cause
The engine will not start. Blade lever is engaged.•
Steering controls are not locked in neutral •
position.
Driver is not sitting in driver’s seat.•
Parking brake is not activated.•
Battery is dead.•
Contamination in carburetor or fuel line.•
Fuel supply is closed or tap for fuel tank is in •
wrong position.
Clogged fuel lter or fuel line.•
The starter does not turn the engine over. Dead battery.•
Poor contacts on the battery terminal cable •
connections.
Fuse blown.•
Ignition system faulty.•
Fault in the starter safety circuit. See Checking the •
Safety System in the Maintenance section.
The engine runs rough. Faulty carburetor.•
Choke control used with warm engine.•
Defective valves.•
Defective piston, cylinder, piston ring, or •
cylinder head seal.
Cylinder head bolts are loose.•
Clogged fuel lter or jet.•
Clogged ventilation valve on fuel cap.•
Fuel tank nearly empty.•
Fouled spark plug.•
Spark plug is loose.•
Defective ignition cable.•
Defective spark plug electrode.•
Defective spark plug connection.•
Rich fuel mixture or fuel-air mixture.•
Wrong fuel type.•
Water in fuel.•
Clogged air lter.•
44
Problem Cause
The engine seems weak. Clogged air lter.•
Fouled spark plugs.•
Carburetor incorrectly adjusted.•
The engine overheats. Clogged air intake or cooling ns.•
Engine overloaded.•
Poor ventilation around engine.•
Defective engine speed regulator.•
Soot in the combustion chamber.•
Too little or no oil in the engine.•
Fouled spark plug.•
Battery not charging. Poor contact with battery terminal cable •
connectors.
The machine moves slowly, unevenly, or not at all. Parking brake on.•
Hydraulic pump bypass linkage engaged.•
Drive belt for the transmission gears slack or has •
come off.
Defective hydraulic system.•
Air in hydraulic system.•
Mower deck not engaging. Drive belt for the mower deck has come loose.•
Contact for the electromagnetic coupling has •
loosened.
Blade switch is faulty or has come loose, from the •
cable contact.
Fuse has blown.•
Uneven mowing results. Different air pressure in the tires on left and right •
sides.
Bent blades.•
Suspension for the mower deck is uneven.•
Blades are dull.•
Driving speed too high.•
Grass is too long.•
Grass collected under the mower deck.•
The machine vibrates. Blades are loose.•
Blades are incorrectly balanced.•
Engine is loose.•
45
Winter Storage
At the end of the mowing season, the machine should
be readied for storage (or if it will not be in use for
longer than 30 days). Fuel allowed to stand for long
periods of time (30 days or more) can leave sticky
residues that can plug the carburetor and disrupt
engine function.
Fuel stabilizers are an acceptable option as regards
to the sticky residues that can occur during storage.
Add stabilizer to the fuel in the tank or in the storage
container. Always use the mixing ratios specied by
the manufacturer of the stabilizer. Run the engine for
at least 10 minutes after adding the stabilizer so that
it reaches the carburetor. Do not empty the fuel tank
and the carburetor if you have added stabilizer
To ready the machine for storage, follow these steps:
Thoroughly clean the machine, especially under 1.
the mower deck. Touch up damage to the paint
and spray a thin layer of oil on the underside of
the mower deck to avoid corrosion.
Inspect the machine for worn or damaged parts 2.
and tighten any nuts or screws that may have
become loose.
Change the engine oil; dispose of properly.3.
Empty the fuel tanks or add a fuel stabilizer. Start 4.
the engine and allow it to run until the carburetor
is drained of fuel or the stabilizer has reached the
carburetor.
Remove the spark plug and pour about a 5.
tablespoon of engine oil into the cylinder. Turn
over the engine so that the oil is evenly distributed
and then ret the spark plug.
Lubricate all grease zerks, joints, and axles.6.
Remove the battery. Clean, charge, and store the 7.
battery in a cool place, but protect it from direct
cold.
Store the machine in a clean, dry place and cover 8.
it for extra protection.
Service
When ordering spare parts, please specify the
purchase year, model, type, and serial number.
Always use genuine Husqvarna spare parts.
An annual checkup at an authorized service workshop
is a good way to ensure that the machine performs its
best the following season.
WARNING!
Never store an engine with fuel in the
tank indoors or in poorly ventilated
spaces where fuel vapor can come in
contact with open ames, sparks, or a
pilot light such as in a boiler, hot water
tank, clothes drier, etc. Handle the
fuel with care. It is very ammable and
can cause serious personal injury and
property damage. Drain the fuel into
an approved container outdoors and
far away from open ame. Never use
gasoline for cleaning. Use a degreaser
and warm water instead.
46
8058-073
47
HEX HEAD CAP SCREWS
The torque values shown should be used as a general guideline when specic torque values are not given.
U.S. Standard Hardware
Grade SAE Grade 5 SAE Grade 8 Flangelock Screw
w/Flangelock Nut
Shank Size (Diameter in inches, ne or coarse thread)
ft./lbs ft./lbs Nm ft./lbs Nm ft./lbs Nm
¼ 9 12 13 18
5/16 18 24 28 38 24 33
3/831 42 46 62 40 54
7/16 50 68 75 108
½ 75 102 115 156
9/16 110 150 165 224
5/8150 203 225 305
¾ 250 339 370 502
7/8378 513 591 801
11/8782 1060 1410 1912
** Grade 5 - Minimum commercial quality (lower quality not recommended)
Metric Standard Hardware
Grade Grade 8.8 Grade 10.9 Grade 12.9
Shank Size (Diameter in millimeters, ne or coarse thread)
ft./lbs ft./lbs Nm ft./lbs Nm ft./lbs Nm
M4 1.5 2 2.2 3 2.7 3.6
M5 3 4 4.5 6 5.2 7
M6 5.2 7 7.5 10 8.2 11
M7 8.2 11 12 16 15 20
M8 13.5 18 18.8 25 21.8 29
M10 24 32 35.2 47 43.5 58
M12 43.5 58 62.2 83 75 100
M14 70.5 94 100 133 119 159
M16 108 144 147 196 176 235
M18 142 190 202 269 242 323
M20 195 260 275 366 330 440
M22 276 368 390 520 471 628
M24 353 470 498 664 596 794
M27 530 707 474 996 904 1205
Torque Specications
Engine crankshaft bolt 50 ft/lb (67 Nm)
Deck pulley bolts 150 ft/lb (203 Nm)
Lug nuts 75 ft/lb (100 Nm)
Blade bolt 90 ft/lb (122 Nm)
Standard ¼" fasteners 9 ft/lb (12 Nm)
Standard 5/16" fasteners 18 ft/lb (25 Nm)
Standard 3/8" fasteners 33 ft/lb (44 Nm)
Standard 7/16" fasteners 52 ft/lb (70 Nm)
Standard ½” fasteners 80 ft/lb (110 Nm)
48
*The power rating of the engines indicated is the average
net power output (at specied rpm) of a typical production
engine for the engine model measured to SAE standard
J1349/ISO1585. Mass production engines may differ from
this value. Actual power output for the engine installed
in the nal machine will depend on the operating speed,
environmental conditions and other variables.
RZ4216
Engine
Manufacturer Briggs & Stratton
Type Intek
Power 16 hp*
Lubrication Pressure with oil lter
Oil capacity excluding lter 1.5 qts/ 1.4 liters
Oil capacity including lter 1.7 qts / 1.6 liters
Engine oil SAE 10W30, 10W30, 5W30, API SF-SJ
Fuel Min 86 octane unleaded (Maxethanol 5%, Max MTBE 15%)
Fuel tank capacity 3 gallons / 11.3 liters
Spark plugs / gap Briggs & Stratton 5066 / .030" / 0.75 mm
Cooling Air cooled
Air lter Standard
Alternator 12V / 16A
Starter Electric 12V
Transmission
Transmission EZT Hydro Gear
Speed and direction controls Dual levers, foam gripped
Speed forward 5.8 mph / 9.3 km/h
Speed reverse 3.3 mph / 5.3 km/h
Brakes Mechanical parking brake
Front caster tires, smooth tread 11 x 3.7, 4 ply
Rear tires, turf pneumatic 18 x 7.5-8
Tire pressure 15 PSI / 103 kPa / 1 bar
49
RZ4216
Equipment
Cutting width 42"
Cutting height 1½" - 4” / 2.5 cm - 10.6 cm
Number of blades 2
Blade length 15" / 37 cm
Sprung seat Standard
Blade engagement Electric clutch
Deck construction Stamped
Productivity
Output 2.78 acres/hr / 11250 m2/hr
Overall dimensions
Weight 570 lbs / 258 kg
Base machine length 75" / 191 cm
Base machine width 40" 102 cm
Base machine height 43¾" / 112 cm
Overall width, chute up 43" / 109 cm
Overall width, chute down 58 " / 147cm
50
USA requirements
Labels are placed on the engine and/or in the engine
compartment stating that the machine will fulll the
requirements. This is also applicable to special
requirements for any of the states, (California emission
rules etc.). Do not remove any of these labels.
Certicates can also be supplied with the machine at
delivery or written in the Engine manual. Take care of
them as they are valuable documents.
CE requirements
If required, the vibration data corresponding to
Directive 2002/44/EC is given in the Technical Data
Section.
The Declaration of Conformity is included in the
literature packet.
51
Action Date, mtr reading, stamp, sign
Delivery Service
1. Charge battery.
2. Adjust tire pressure of all wheels according to Technical Data.
3. Mount the steering controls in the normal position.
4. Connect the contact box to the cable for the seat’s
safety switch.
5. Check that the right amount of oil is in the engine.
6. Adjust the position of the steering controls.
7. Fill with fuel and open the fuel shut off valve.
8. Start the engine.
9. Check that there is drive to both wheels.
10. Check the mower deck adjustment.
11. Check:
The safety switch for the parking brake.
The safety switch for the mower deck.
The safety switch in the seat.
The safety switch in the steering controls.
Parking brake functionality.
Driving forward.
Driving backward.
Engaging the blades.
12. Check the idle speed
13. Check the engine high idle speed
14. Inform the customer about:
The need and advantages of following the service schedule.
The need and advantages of leaving the machine for service
every 300 hours.
The effects of service and maintaining a service journal on the
machine’s resale value.
Application areas for Mulching.
15. Fill in the sales papers
Delivery service has been carried out.
No remaining notes.
Certied:
52
Action Date, mtr reading, stamp, sign
After the First 10 Hours
1. Change engine oil.
25-Hour Service
1. Check the fuel pump’s air lter.
2. Check the hydraulic system’s oil level.
3. Check the tire pressures.
4. Lubricate the belt adjuster, mower deck.
5. Lubricate the belt adjuster, hydraulic pumps.
6. Check/clean the engine’s cooling air intake.
7. Clean air lter dust cap.
53
Action Date, mtr reading, stamp, sign
50-Hour Service
1. Perform the 25-hour service.
2. Clean/replace the air cleaner’s lter cartridge (paper lter)
(shorter intervals for dusty operating conditions).
3. Change engine oil.
4. Lubricate according to lubrication chart.
5. Check/adjust the parking brake.
100-Hour Service
1. Perform the 25-hour service.
2. Perform the 50-hour service.
3. Change the engine oil lter.
4. Clean/replace the spark plugs.
5. Replace the fuel lter.
6. Clean the cooling ns on the engine and transmission.
7. Check V-belts.
8. Check/tighten caster wheel axle bolts (every 200 hours).
9. Change the air lter’s paper cartridge.
54
Action Date, mtr reading, stamp, sign
At Least Once Each Year
1. Clean the engine’s cooling air intake (25 hours).
2. Replace the air cleaner’s pre-lter (foam) (300 hours).
3. Replace the air lter’s paper cartridge.
4. Change the engine oil (50 hours).
5. Replace the engine oil lter (100 hours).
6. Check/adjust the cutting height.
7. Check/adjust the parking brake (50 hours).
8. Clean/change the spark plugs (100 hours).
9. Change the fuel lter (100 hours).
10. Clean the cooling ns (100 hours).
11. Check the engine valve clearance.
300-Hour Service
1. Perform the 25-hour service.
2. Perform the 50-hour service.
3. Perform the 100-hour service.
4. Check/adjust the mower deck.
5. Clean the combustion chamber and grind the valve seats.
6. Check the engine valve clearance.
7. Replace the air cleaner’s prelter (foam).
55
Action Date, mtr reading, stamp, sign
P/N 115 160926 R1 11/15/09
