Gasoline containing up to 10% ethanol
(E10) is acceptable for use in this
machine. The use of any gasoline
exceeding 10% ethanol (E10) will void
the product warranty.
Operator Manual
M-ZT61 / 967177008
Please read the operator manual carefully and make sure
you understand the instructions before using the machine.
To implement improvements, specifications and designs can be altered without prior notification.
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.
Modifications 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.
SERVICE JOURNAL ........................................................ 57
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 influence 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 cause cancer and birth defects or other reproductive harm. Wash
hands after handling.
INTRODUCTION
Congratulations
Thank you for purchasing a Husqvarna ride-on
mower. This machine is built for superior efficiency
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) 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
manual to the new owner.
The final chapter of this operator 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 manual along
when the machine is taken to your dealer for service.
General
In this operator 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 specifications and design are subject to change
without notice.
Driving and Transport on Public Roads
Check applicable road traffic 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 the towed equipment. Make wide turns to avoid
jack-knifing. 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 judgment, 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 traffic
regulations must be followed without fail.
Unauthorized modifications to the design of the
machine may absolve the manufacturer from liability
for any resulting personal injury or property damage.
INTRODUCTION
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
certificate in the Service Journal in this operator
manual.
When you need spare parts or support in service
questions, warranty issues, etc., please consult
the following professional:
This manual belongs to the machine with the
manufacturing number:
Manufacturing Number
The machine’s manufacturing number can be found
on the printed plate affixed to the right side 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 either
on one of the valve covers or an affixed serial plate.
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 affixed at the rear.
EngineTransmission
6
SYMBOLS AND DECALS
These symbols are found on the machine and in the
operator manual.
Study them carefully so that you know what they
mean.
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.
RN
ReverseNeutralFastSlowChokeFuel
Warning!Parking BrakeCE conformity marking. Only
for European market
Use protective glasses
Use protective gloves
Do not stand here
7
Read Operator Manual
SYMBOLS AND DECALS
Shut off engine and
remove key before
performing any
maintenance or
repair work
Keep a safe
distance from the
machine
Use on slopes no
greater than 10°No passengers
Whole body
exposure to
thrown objects
Moving sharp blades under cover
Severing of fingers
and toes
Do not open or
remove safety
shields while
engine is running
Battery acid is corrosive, explosive and flammable
Careful backing up,
watch for
other people
Careful going forward,
Warning! Rotating blades,
keep away from the
discharge deck
watch for
other people
Do not touch parts
8
SAFETY
Safety Instructions
These instructions are for your safety. Read them
carefully.
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.
General Operation
• Read, understand, and follow all instructions on
the machine and in the manual before starting.
• It is recommended that someone be aware that
you are mowing and can provide help in case of
injury or accident.
• 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.
WARNING!
This symbol means that important safety
instructions need to be emphasized. It
concerns your safety.
8011-512
Read the operator manual before starting the machine
8011-513
Clear the area of objects before mowing
9
SAFETY
• Operate machine only in daylight or good artificial
light.
• Do not operate the machine while under the
influence of alcohol or drugs.
• Watch for traffic 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.
• Wear proper Personal Protective Equipment
(PPE) while operating this machine, including (at
a minimum) sturdy footwear, eye protection, and
hearing protection. Do not mow in shorts and/or
footwear with open toes.
• 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 first 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 the hot exhaust or engine
parts and burn. Do not allow the mower deck to
plow leaves or other debris, causing 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.
10
SAFETY
Personal Safety Equipment
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.
• Make sure that you have first 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.
8011-670a
Personal protective equipment
WARNING!
Do not drive up or down hills with slopes
greater than 10 degrees. Do not drive
across any slopes.
6003-004
Mow up and down, not side to side
11
SAFETY
• 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!
CHILDREN CAN BE INJURED BY THIS
EQUIPMENT. The American Academy
of Pediatrics recommends that children
be a minimum of 16 years of age before
operating a riding lawn mower. Keep
children out of the mowing area and in
the watchful care of a responsible adult
other than the operator.
8011-519
Be extra cautious when driving on slopes
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
watchful care of a responsible adult other than the
operator.
• Be alert and turn machine off if a child enters the
area.
• Before and while backing, look behind and down
for small children.
• Never carry children, even with the blades shut
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.
• Use extra care when approaching blind corners,
shrubs, trees, or other objects that may block the
view of a child.
8011-518
Keep children away from work area
12
8011-517
Never allow children to operate the machine
SAFETY
Safe Handling of Gasoline
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
before refueling.
To avoid personal injury or property damage, use
extreme care in handling gasoline. Gasoline is
extremely flammable and the vapors are explosive.
• Extinguish all cigarettes, cigars, pipes, and other
sources of ignition.
• Use only approved gasoline container.
• Never remove gas cap or add fuel with the engine
running. Allow engine to cool before refueling.
• Never fuel the machine indoors.
• Never store the machine or fuel container where
there is an open flame, spark, or pilot light such as
on a water heater or other appliance.
• Before beginning to refuel, minimize the risk of
static electricity by touching a metal surface.
• Never fill containers inside a vehicle or on a truck
or trailer bed with plastic liner. Always place
containers on the ground away from the vehicle
when filling.
• Remove gas-powered equipment from the truck
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 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
immediately.
• Never overfill fuel tank. Replace gas cap and
tighten securely.
• Do not start the engine near spilled fuel.
• Never use gasoline as a cleaning agent.
• If leaks arise in fuel system, engine must not be
started until problem has been resolved.
• Check the fuel level before each use and leave
space for the fuel to expand, as the heat from the
engine and the sun may otherwise cause the fuel
to expand and overflow.
8011-516
Never fill the fuel tank indoors
WARNING!
The engine must not be started when
the driver’s floor plate or any protective
plate for the mower deck’s drive belt is
removed.
13
SAFETY
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 flames 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.
14
8011-515
Never drive the machine in an enclosed space
CAUTION!
Use protective glasses for
maintenance work.
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.
SAFETY
Sparking can occur when working with the battery
and the heavy cables of the starter circuit. This can
cause battery explosion, fire or eye injury. Sparking
in this circuit can not occur after the chassis cable
(normally negative, black) is removed from the battery.
WARNING!
Avoid electrical sparking and its
consequences by the following routines:
• Use protective goggles.
• Ensure that the fuel filler cap is mounted tightly
and no flammable substances are stored in an
open vessel.
• Never work with the starter circuit if there is spilled
fuel.
• Disconnect the negative cable from the battery
first and reconnect it last.
• Do not make a bridge short circuit across the
starter relay to run the starter.
6003-009
Do not smoke when performing maintenance on the battery.
The battery can explode and cause serious injury/damage.
• 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 fire 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.
8009-728
Risk of sparking
8011-514
Regularly clean deck
15
SAFETY
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 traffic 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.
• When loading or unloading this machine, do not
exceed the maximum recommended operation
angle of 10O.
WARNING!
Use extreme caution when loading the
machine into a truck or trailer using
ramps. There is the possibility of serious
injury or death if the machine falls off the
ramps.
IMPORTANT INFORMATION
The parking brake is not sufficient 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.
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-knifing. 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
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).
In the state of California the above is required by
law (Section 4442 of the California Public Resources
Code).
Other states may have similar laws. Federal laws
apply on federal lands.
A spark arrestor for the muffler is available through
any authorized Husqvarna dealer.
WARNING!
Escaping hydraulic oil under pressure
can have sufficient force to penetrate the
skin, causing serious injury. If injured
by escaping fluid, see a doctor at once.
Serious infection or reaction can develop
if proper medical treatment is not
administered immediately.
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 arrester meeting applicable
local or state laws (if any). If a spark
arrestor is used, it should be maintained
in effective working order by the
operator.
16
SAFETY
Rollover Protection System (ROPS)
The ROPS increases the basic weight of the unit by 73
lbs/33 kg.
• Do not use ROPS as a lifting, attaching or
anchoring point.
• Do not use ROPS for wrecking or towing.
• Do not exceed Max GVW: 2822 lbs/1283 kg.
• Read machine’s operator manual before each
use.
• Securely fasten the seat belt if the unit has a
ROPS.
• Where possible, avoid operating the unit near
ditches, embankments and holes.
• Reduce speed when turning, crossing slopes and
on rough, slick or muddy surfaces.
• Stay off slopes too steep for safe operation.
• Watch where you are going, especially at row
ends, on roads and around trees.
• Do not permit others to ride.
• Operate the mower smoothly - no jerky turns,
starts or stops.
• When mower is stopped, set brakes securely and
use park brake.
• If any part of ROPS is damaged, the entire ROPS
must be replaced.
• Check all bolts including seat belt for correct
torque before each use.
• Check ROPS structure for damage before each
use.
• ROPS bar is NOT intended for use in sub zero
temperatures.
WARNING!
The rollover protection system's
capabilities may be impaired by damage
if the mower is overturned or if alteration
to the ROPS occurs. If these conditions
take place, the total structure MUST be
replaced.
17
CONTROLS
This operator manual describes the Husqvarna
Zero Turn Rider. The rider is fitted with a four-stroke
overhead valve engine.
Transmission from the engine is made via belt-driven
Control Locations
4
5
hydraulic pumps. Using the left and right steering
controls, the flow is regulated and thereby the
direction and speed.
3
2
1
18
6
7
8
1. Motion control levers
2. Park brake
3. Tracking knob
4. Fuel tank - left
5. Hydro releases levers
6. Ignition switch
11
10
9
7. Hour meter
8. Throttle control
9. Blade switch
10. Deck lift
11. Deck release
CONTROLS
Motion 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.
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.
8065-105
Steering controls
WARNING!
The machine can turn very rapidly if one
steering control is moved much further
forward than the other.
1. Forward
2. Neutral
3. Neutral slot, Neutral lock
4. Reverse
Motion control lever pattern (right side)
8065-053
19
CONTROLS
Parking Brake
The parking brake is found on the left of the machine.
Pull the lever backward to activate the brake and push
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 switch is placed on the control panel and
is used to start and stop the engine.
Push in and turn the key clockwise to start the engine.
On models equipped with headlights, turn the key
clockwise to ACCESSORY for headlight use.
8058-182
Parking brake
IMPORTANT INFORMATION
Do not run the starter for more than five
seconds each time. If the engine does not start,
wait about 10 seconds before retrying.
Blade Switch
To engage the mower deck, pull the blade switch knob
out. The mower blades are disengaged when the knob
is pressed down fully.
8058-043
Ignition switch
20
8058-043
Blade switch
CONTROLS
Throttle Control
The throttle control regulates the engine speed and
thereby the rate of rotation of the blades, assuming
the blade switch is pulled out, see Engaging the
Mower Deck.
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.
Hour Meter
The hour meter displays the total operating time with
the blade activated.
The display on the hour meter will turn on the oil can
icon after every fifty hours of use and will stay on
for two hours or until the meter is manually reset. To
manually reset the timer, turn the ignition key to the run
position and then engage and disengage the blade
switch five times at one second intervals.
8050-043
Throttle control
Fuel Shut Off Valve
The fuel shut off valve is centered behind the rear of
the seat. The valve is off when the handle tab is turned
perpendicular to the fuel line.
8050-043
Hour meter
8065-010
Fuel shut off valve in the CLOSED position.
21
CONTROLS
Tracking Knob
If the mower is not tracking straight, check the air
pressure in both rear tires. Recommended air pressure
for the rear tires is 15 psi (1 bar).
1. Tracking adjustments are made using the tracking
bolt and tracking knob. The tracking bolt and
tracking knob act as limiting devices for the motion
control levers when in the full-forward position.
2. For preliminary tracking adjustment, move unit
to an open, unobstructed area such as an empty
parking lot or open field.
3. Back the tracking bolt out until flush with nut.
4. Loosen tracking knob out until flush with nut.
5. Test operate unit by driving it at full throttle and the
full forward position on both motion control levers.
Gradually turn in the tracking bolt on the right hand
side until the unit noticeably starts drifting right.
6. Drive forward at full throttle with both motion
control levers in the full forward position. Gradually
turn in the tracking knob (left side) until unit tracks
straight.
8058-224
Tracking adjustment
Fuses
Fuses are located on the left hand side of the machine.
They are accessed by tilting the seat forward. Fuses
are flat pin fuses type as used in automobiles.
There are two fuses with ratings and functions:
• 20 A, Primary fuse
• 7.5 A, Mower deck coupling
8050-082
Fuses
22
CONTROLS
Cutting Height Adjuster
The desired cutting height is set with the height pin.
The cutting height pedal releases the deck lift to place
the deck at the selected height.
For transport, push the lift pedal fully forward until the
deck lift latches in the transport (highest) position.
Seat Adjustment Lever
The seat can be adjusted lengthways. The lever is
located under the right side of the seat (as seen by the
driver in the seat). When making adjustments the lever
is moved to the left.
2
1
8058-223
1. Release pedal
2. Height pin
Cut height selection pedals
IMPORTANT INFORMATION
Seat should not be adjusted while unit is in
motion.
Hydro Release Levers
The levers are located on each side of the rear of the
unit below the rear engine plate. The bypass linkage is
used when manual pushing or pulling the unit.
See Moving Machine By Hand in the Operation
section.
WARNING!
Bypass linkages are located close to the
muffler. To prevent burns, the engine
should be shut off and allowed to cool
before the bypass linkage levels are
handled.
8065-125
Seat adjustment
Right side, ZT linkage
8065-097
23
CONTROLS
Refueling
IMPORTANT INFORMATION
It is recommended that fuel be added to both
tanks on initial start up.
Read the safety instructions before refueling. The
capacity for the tank is 5 gallons (19 liters).
Regularly check the gas cap gasket for damage and
keep the cap properly tightened.
The engine will run on a minimum of 87-octane
unleaded gasoline (no oil mix). Environmentally
adapted alkylate gasoline can be used. See Technical
Data concerning ethanol fuel. Methanol fuel is not
allowed. Do not use E85 alcohol based fuel. Damage
to the engine and components may occur.
When operating in temperatures below 32° F. (0° C.),
use fresh, clean winter grade gasoline to help insure
good cold weather starting.
8058-227
Fuel tank
WARNING!
Gasoline is highly flammable. Observe
caution and fill the tank outdoors (see
the safety instruction).
WARNING!
The engine and the exhaust system
become very hot during operation.
Risk for burns if touched.
Allow engine and exhaust system to cool
before refueling
WARNING!
Fill to bottom of filler neck. Do not
overfill. Wipe off any spilled oil or fuel.
Do not store, spill or use gasoline near
an open flame.
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.
24
OPERATION
Read the Safety section and following pages, if you
are unfamiliar with the machine.
Training
Due to unique steering capabilities, zero turn mowers
are far more maneuverable than typical riding mowers.
This section should be reviewed in its entirety prior to
attempting to move the mower under its own power.
When first operating the mower or until becoming
comfortable with controls, use a reduced throttle
speed and reduced ground speed. DO NOT move
control levers to the furthest forward or reverse
positions during initial operation.
First time users should become familiar with the
mower’s movement on a hard surface, such as
concrete or blacktop PRIOR to attempting to operate
on turf. Until the operator becomes comfortable with
the mower controls and zero turning capability, overly
aggressive maneuvers may damage turf.
Steering
To move forward and backward
The direction and speed of the mower’s movements
are 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 the mower (see Moving Machine By Hand in the Operation section) to an
open, flat area without other people, vehicles or
obstacles nearby. To move the unit under its own
power, the operator must sit in the seat and start
the engine (see Before Starting in the Operation
section). Adjust the engine speed to idle, disengage
the parking brake but do not engage the blades at
this time. Rotate control levers inward. As long as
the control levers have not been moved forward or
backwards, the mower will not move.
Slowly move both control levers forward slightly. This
will allow mower to start moving forward in a straight
line. Pull the control levers back to the neutral position
and the mower should stop moving.
Pull back slightly on control levers, allowing the mower
to move backwards. Push the control levers forward 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, first 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,
complete the turn.
25
OPERATION
Roll Bar and Safety Belt
Operate the unit with the roll bar in the raised and
locked position and use the seat belt. There is no
rollover protection when the roll bar is down. If it is
necessary to lower roll bar, do not wear the seat belt.
Raise the roll bar as soon as clearance permits.
WARNING!
The seat belt must be used when the roll
bar is in upright position.
Before Starting
1. Read the sections Safety and Controls before
starting the machine.
2. Perform the daily maintenance before starting
See Maintenance Schedule in the Maintenance
section.
3. Check that there is sufficient fuel in the fuel tank.
4. Adjust the seat to the desired position.
8065-011
Roll bar in upright position
5. Set the deck cutting height.
The following conditions must be fulfilled before the
engine can be started:
• The blade switch for engaging the mower blades
must be depressed.
• The parking brake must be on.
• Both steering controls must be in the locked
(outer) neutral position.
26
8065-125
Seat adjustment
8065-223
Set deck cutting height
OPERATION
Starting the Engine
1. Sit on the seat.
2. Raise the mower deck to the transport position by
setting the lift pedal fully forward.
3. Activate the parking brake.
4. Disengage the mower blades by pressing the
blade switch down.
8058-225
Set mower deck to the transport position
5. Move the steering controls outward to the locked
(outer) neutral position.
8058-043
Press the control for disengaging the mower deck
8058-226
Place controls in neutral position
27
OPERATION
6. Move the throttle to the middle position.
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.
7. Open the fuel tank valve.
8. Press in and turn the ignition key to the start
position.
8058-050
Set the throttle
IMPORTANT INFORMATION
Do not run the starter for more than 5 seconds
each time. If the engine does not start, wait
about 10 seconds before retrying.
9. When the engine starts, immediately release the
ignition key back to the run position.
10. Set the engine speed with the throttle. Allow the
engine to run at a moderate speed, approximately
mid throttle, for 3-5 minutes before loading it too
heavily. USE FULL THROTTLE WHEN MOWING.
28
8065-013
Fuel valve in the OPEN position
OPERATION
Weak Battery
If the battery is too weak to start the engine, it should
be recharged. (See Battery in the Maintenance
section.)
WARNING!
Lead-acid batteries generate
explosive gases. Keep sparks, flame
and smoking materials away from
batteries. Always wear eye protection
when around batteries.
IMPORTANT INFORMATION
The 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 the mower to start other vehicles.
Jumper Cables Use
1. Connect each end of the RED cable to the
POSITIVE (+) terminal on each battery, taking care
not to short against chassis.
2. Connect one end of the BLACK cable to the
NEGATIVE (-) terminal of the fully charged battery.
3. Connect the other end of the BLACK cable to a
good CHASSIS GROUND on the mower with the
discharged battery, away from the fuel tank and
battery.
To remove cables, reverse order
4. Remove BLACK cable first from chassis and then
from the fully charged battery.
5. Remove RED cable last from both batteries.
8011-642
Jumper cable connection
29
OPERATION
Running
1. Release the parking brake by moving the lever
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 first setting the parking brake will shut off
the engine.
2. Move the steering controls to the neutral position
(N).
8058-182
Release the parking brake
WARNING!
Make sure that no one is near mower
when engaging blade switch.
Make sure the work area is free from
objects that could be thrown by the
rotating blades.
3. Move throttle control to full throttle.
4. Engage the mower deck by pulling out the blade
switch.
8058-266
Place controls in neutral position
30
8058-053
Engage the mower deck and move throttle to full.
OPERATION
Operating on Hills
Read the Safety Instructions Driving on Slopes in the
Safety Instructions.
WARNING!
Do not drive up or down hills with slopes
greater than 10 degrees. Do not drive
across slopes.
• 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.
IMPORTANT INFORMATION
Control levers return to neutral when released.
This may cause the mower to suddenly stop.
8058-226
Place controls in neutral position
• 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.
8058-182
Release the parking brake to restart movement
31
OPERATION
Stopping the Engine
For all models, move the throttle to the minimum
position (tortoise symbol). If the engine has been
worked hard, allow it to idle a minute to attain a
normal operating temperature before stopping. To
prevent fouling the spark plugs, avoid idling the
engine for longer periods.
1. Disengage the mower deck by depressing the
blade switch.
2. Raise the mower deck by pressing the foot pedal
forward to the transport position.
3. When the machine is standing still, activate the
parking brake by pulling the lever upward.
4. Turn the ignition key to the stop position.
8058-046
Disengage the mower deck and move throttle to minimum
5. Move the steering controls outward.
6. Remove ignition key. To prevent unauthorized use,
always remove the key when leaving the mower.
IMPORTANT INFORMATION
Leaving the ignition switch in any other
position than OFF will cause the battery to be
discharged.
32
8058-223
Raise deck to transport position
8058-266
Place controls in neutral position to stop
OPERATION
Mowing Tips
• Observe and flag rocks and other fixed 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
first 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 finest 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 flooding water on top surface, engine
and electrical components.
• When the mulching kit is used, it is important that
the mowing interval is frequent and that the deck
is cleaned more often.
WARNING!
Clear the lawn of stones and other
objects that can be thrown out by the
blades.
8011-603b
Mowing pattern
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.
33
Moving Machine By Hand
OPERATION
WARNING!
No adjustments or maintenance should
be carried out unless:
• the engine stopped
• the ignition key removed
• the parking brake activated
When pushing or pulling the mower, engage the
bypass linkages with the hydro release levers. The
levers are located on each side of the rear of the unit
below the engine plate.
Raise the deck to the highest (transport) position.
Pull the bypass linkages up and out of the keyhole
slots. Release the lever with the head outside the
bracket and held into the bypass setting.
To reengage the hydro to drive, reverse the above
procedure.
WARNING!
Bypass linkages are located close to the
muffler. To prevent burns, the engine
should be shut off and allowed to cool
before the bypass linkage levels are
handled.
2
1
8058-091
1. Release lever locked into the bypass position
2. Release lever, engaged
Right side, ZT-3400 linkage
WARNING!
Use extreme caution when loading the
machine into a truck or trailer using
ramps. There is the possibility of serious
injury or death if the machine falls off the
ramps.
34
MAINTENANCE
MAINTENANCE
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 connections
Sharpen3)/ Replace mower blades
Clean the engine’s cooling air intake
Clean the air cleaner’s foam pre-filter
Clean the air cleaner’s paper filter cartridge 2)
Check/adjust the parking brake
Inspect muffler/spark arrester
2)
2)
DailyAt least
once
each
BeforeAfter50250500
year
Maintenance interval
in hours
●
■
●
♦
■
●
●
●●●●
♦
♦♦♦♦
♦♦♦♦
♦♦♦♦
●●●●
●●●●
●●●●
■■■■
■■
■■
●●●●
♦♦♦♦
1)
First change after 8-10 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)
Performed by authorized service workshop.
● = Described in this manual
♦ = Not described in this manual
■ = Refer to the engine manufacturer's manual
35
MAINTENANCE
MAINTENANCE
Check/adjust throttle cable
Check the condition of belts, belt pulleys
Change the engine oil
Replace the engine oil filter
Clean/replace the spark plugs
Replace the fuel filter
Replace paper air filter
Check the caster wheels (every 200 hours)
Replace the air cleaner’s foam pre-filter
Change the hydraulic oil (every 500 hours)
Replace the hydraulic oil filter (every 500 hours)
Dismantle and inspect starter 3) (every 500 hours)
Check/adjust the mower deck
Check the engine valve clearance
Perform the 500-hour service
1)
2)
2)
3)
3)
DailyAt least
once
each
BeforeAfter50250500
year
Maintenance interval
in hours
■
●●
■■
■■
■■
●●
■■
●●
■
●●
●●
♦
●●
♦♦
♦♦
1)
First change after 8-10 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)
Performed by authorized service workshop.
● = Described in this manual
♦ = Not described in this manual
■ = Refer to the engine manufacturer's manual
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.
36
MAINTENANCE
Battery
The mower is equipped with a maintenance free
battery and 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.
• See chart for charging times.
WARNING!
Always wear eye protection when
around batteries.
Battery Removal
Corrosion and dirt on the battery and terminals can
cause the battery to lose power.
1. Open the terminal access doors.
2. Disconnect BLACK battery cable first, then the
RED battery cable and remove the battery from
the machine.
3. Rinse the battery with plain water and dry.
4. Clean terminals and battery cable ends with wire
brush until shiny.
5. Coat terminals with grease or petroleum jelly
6. Reinstall battery.
STANDARD
BATTERY
12.6V100%
12.4V75%20 min.35 min.48 min.90 min.
12.2V50%45 min.75 min.95 min.180 min.
12.0V25%65 min.115 min.145 min.280 min.
11.8V0%85 min.150 min.195 min.370 min.
STAT E
OF
CHARGE
*Charging time depends on battery capacity,
condition, age, temperature and efficiency of charger
APPROXIMATE BATTERY CHARGING TIME*
TO FULL CHARGE AT 80OF / 27OC
Maximum Rate at:
50 Amps30 Amps20 Amps10 Amps
- FULL CHARGE -
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.
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
first to prevent sparks from accidental
grounding.
Replacing battery
1. Lift seat and rotate forward.
2. Open terminal access doors
3. Using two ½" wrenches disconnect BLACK battery
cable then RED battery cable.
4. Using a 7/16 wrench, remove the bolts on either side
of the terminal guard and lift off guard.
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 terminal guard.
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. Close access doors.
11. Lower seat.
2
1
2
8066-049
1. Terminal guard
2. Access doors
Battery cleaning and installation
37
MAINTENANCE
Safety System
This machine is equipped with a safety system
that prevents starting or driving under the following
conditions.
The engine can only be started when:
• The mower deck is disengaged.
• The steering controls are in the outer, locked
neutral position.
• 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
driver's seat.
8058-228
Conditions for starting
IMPORTANT INFORMATION
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.
Tire Pressures
Fill tire pressures to 15 psi / 103 kPa / 1 bar.
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
sufficient braking action.
WARNING!
Faulty adjustment result in reduced
braking ability and can cause an
accident.
IMPORTANT INFORMATION
The machine must be standing still when
applying the parking brake.
IMPORTANT INFORMATION
DO NOT add any type of tire liner or foam fill
material to the drive tires. Excessive loads
created by foam filled tires will cause premature
failures.
Only use O.E.M. specified tires.
8058-182
Parking brake
38
MAINTENANCE
Deck Belt
Deck Belt Removal
Park on a level surface. Apply park brake. Lower the
deck into the lowest cutting position.
1. Remove foot plate and belt shields.
2. Using a ratchet or breaker bar with a 9/16" socket
on the spring idler bolt, relieve the tension on the
belt.
3. Remove any dirt or grass that may have
accumulated around the cutter housings and
entire deck surface.
4. Carefully roll the belt over the top of the cutter
housing pulleys.
5. Remove the belt from around the electric clutch on
the engine shaft and off the mower deck.
8058-063
Slackening the belt tensioner
Deck Belt Installation
NOTE: For ease in installing the deck belt, refer to the
routing decal on the deck.
1. Wrap the deck belt around the electric clutch
pulley that is located on the engine shaft.
2. Route the belt forward between the spring loaded
and stationary pulleys.
3. Place belt around spring loaded idler pulley.
4. Wrap the belt around the stationary idler pulley
and around the mandrel housings.
5. Push inward on the idler arm and carefully route
belt over stationary idler pulley. Once belt is
properly routed, slowly release idler arm to tension
belt.
6. Check that there are not twists in the belt and that
the routing matches the routing decal.
7. Replace belt shields on both mandrel housings
and secure with fasteners.
8050-843
Belt routing, deck belt
39
MAINTENANCE
Pump Belt
The belts are not adjustable. Replace belts if they
begin to slip from wear.
Replacing Pump Belt
Park the mower on a level surface. Engage the
parking brake.
Belt Removal
From the top side of the deck:
1. Remove the deck belt (see Deck Belt Removal in
this section of the manual).
2. Tilt seat forward to access fan covers. Remove
both fan covers.
From the underside of the mower:
3. Remove clutch stop to access the belt.
4. With a ½" breaker bar and using the square
opening in the pump idler arm, shift the arm to
create slack in the belt.
5. With the idler arm in the slack position, slip a
screwdriver, clevis pin or similar into the 3/8" hole in
the plate that sits between the two fan covers. This
will keep the idler in the extended position and
allow removal of the breaker bar.
6. Remove belt from the engine and pump pulleys
over the top of the fans.
8058-064
Remove fan covers
Belt Installation
1. If the pump is not locked in the extended position,
repeat Steps 4 and 5 from the above instructions.
2. Slip the belt over the fans and route it between the
idler pulleys.
3. Place the belt over the right and left idler pulleys.
4. Place the belt on the engine pulley.
5. Use the breaker bar to hold the tension off the belt
while removing the implement used as a brace in
the plate.
6. Replace and secure clutch stop.
7. Reinstall the fan shields.
8. Reinstall the deck belt. (See Deck Belt Installation in this section of the manual).
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.
3
1
2
8058-060
1. Electric clutch
2. Idler arm release placement
3. Clutch stop
Pump belt removal
40
MAINTENANCE
Cutting Blades
To attain the best mowing effect, it is important that
blades are well sharpened and not damaged.
Replace blades that have been bent or cracked when
hitting obstacles.
Let the service workshop decide whether a blade
with large nicks can be repaired/ground or must be
replaced. Balance the blades after sharpening.
Check the blade mounts.
Blade Replacement
WARNING!
Blades are sharp. Protect your
hands with gloves and/or wrap
blades with a heavy cloth when
handling.
3
1. Remove blade bolt by turning counterclockwise.
2. Install new or resharpened blade with stamped
GRASS SIDE facing towards ground/grass
(down) or THIS SIDE UP facing deck and spindle
housing.
3. Install and tighten blade bolt securely.
4. Torque blade bolt to 45-55 ft-lbs (122 Nm).
IMPORTANT INFORMATION
Special blade bolt is heat treated.
Replace with a Husqvarna bolt if required.
Do not use lower grade hardware than specified.
2
1
8058-167
1. Blade
2. Blade bolt (special)
3. Cutter housing
Blade attachment
IMPORTANT INFORMATION
The sharpening of blades should be carried out
by an authorized service workshop.
41
MAINTENANCE
Adjusting the Mower Deck
Check the tire pressure before adjustment of the
mower deck. See Tire Pressures in Maintenance
section. Faulty mower deck adjustments will cause an
uneven mowing result.
Leveling deck
Adjust the deck while the mower is on a level
surface. Make sure the tires are inflated to the correct
pressure. See Technical Data / Transmission. If tires
are under or over inflated, you cannot properly adjust
your deck.
Four slots control the height and pitch of the mower
deck. The deck should be adjusted slightly higher in
the rear.
NOTE: To insure accuracy of leveling procedure,
mower deck drive belt must be installed prior to
leveling deck.
1. Wear heavy gloves. Turn each outer blade tip to
align with the deck side-to-side.
2. Measure from the floor surface up to the bottom
of the blade tip on the discharge side of the
mower deck. Retain this measurement. Move to
the opposite side, check that measurement is the
same. If adjustment is required, loosen the locknut
and move mounting bolt up or down in slot until
both side-to-side measurements are equal. Retain
measurement.
3. Turn both outer blades to align with the deck in
front-to-rear manner. Reposition rear mounting
bolts up or down until rear of mower deck is
positioned level to 1/8" higher in the rear than the
side-to-side measurement.
4. Confirm measurements once again. Blade tips
should be level in a side-to-side manner. In the
rear, blade tips should be level to 1/8" higher than
side-to-side measurement. In the front, blade
tips should be level to 1/8" lower than side-to-side
measurement.
NOTE: This will place the mower deck in a
standard measurement position. Depending on
the type of grass being mowed or environmental
conditions, additional adjustments may be
required to achieve the desired cut.
WARNING!
Blades are sharp. Protect your
hands with gloves and/or wrap
blades with a heavy cloth when
handling.
Set blades to begin leveling.
3
1. Front lift arm
2. Chain
3. Rear lift arm
4. Slotted deck hanger plates
Leveling the mower deck
8058-157
1
2
4
8011-601
42
MAINTENANCE
Anti-scalp Rollers
Anti-scalp rollers keep the deck in the proper position
to help prevent scalping in most terrain conditions. Do
not adjust the rollers to support the deck.
Rollers are properly adjusted when they are just
slightly off of the ground when the deck is at the
desired cutting height in the operating position.
IMPORTANT INFORMATION
Adjust anti-scalp rollers with the mower on a
flat level surface.
The anti-scalp rollers can be set in three positions:
• Upper position 1 to 2½" (25 to 63 mm) grass.
• Middle position 2½" to 4" (63 to 102 mm) grass.
• Lower position 4" to 5" (102 to 127 mm) grass.
The rollers should be approximately ¼" (6.5 mm) from
ground. Do not adjust the rollers to support the deck.
8058-054
Anti-scalp rollers
IMPORTANT INFORMATION
To avoid deck damage, the anti-scalp rollers
must not be adjusted to support the deck.
Caster Wheels
Check every 200 hours. Check that wheels rotate
freely.
Removal and Installation
Remove nut and caster bolt. Pull the wheel out of the
fork.
To reInstall, reverse the order. Tighten caster bolt.
If wheels do not rotate freely, take the unit to the dealer
for service.
Hardware
Check daily. Inspect the entire machine for loose or
missing hardware.
8058-014
Caster wheel
43
MAINTENANCE
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 dirt sticks.
Do not spray water on the top of the mower deck. Use
compressed air to clean the top side of mower deck.
Regularly clean deck and underside of the deck with
normal water pressure. Do not use a high pressure
washer or steam cleaner. Avoid spraying engine and
electrical components with water.
Do not rinse hot surfaces with cold water. Let unit cool
before washing.
Use protective glasses when
cleaning and washing.
ZT-3400 Powertrain
IMPORTANT INFORMATION
Any servicing dealer attempting a warranty
repair must have prior approval before
conducting maintenance of a Hydro-Gear®
product, unless the servicing dealer is a current
Authorized Hydro-Gear Service Center.
Regular external maintenance of the ZT-3400
Powertrain™ should include the following:
1. Check oil level in expansion tanks. When the
engine is cold, the tanks should be at the FULL
COLD level.
2. Inspect the vehicle drive belt, idler pulley(s), and
idler spring(s). Insure that no belt slippage can
occur. Slippage can cause low input speed to the
transmission.
3. Inspect the transmission cooling fan for broken or
bent blades. Remove any obstructions such as
grass clippings, leaves or dirt.
4. Inspect the parking brake and vehicle linkage to
insure proper action and adjustment of the parking
brake.
5. Inspect the vehicle control linkage to the
directional control arm on the transaxle. Also,
make sure the control arm is securely fastened to
the trunnion arm of the transaxle.
6. Inspect the bypass mechanism on the transaxle
and unit linkage to make sure it rotates and
releases fully.
44
Lubrication Schedule
LUBRICATION
12/12 Every yearLubricate with grease gunFilter change
1/52 Every Week
1/365 Every dayOil changeLevel check
Change hydraulic drive filters.
*
p Change engine oil every 50 hours.
General
Remove the ignition key to prevent unintentional
movements during lubrication.
When lubricating with an oil can, it must be filled with
engine oil.
When lubricating with grease, unless otherwise stated,
use high grade molybdenum disulphide grease.
For daily use, the machine should be lubricated twice
weekly.
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.
8065-095
45
LUBRICATION
Wheel and Deck Zerks
Use only good quality bearing grease.
Grease from well-known brand names (petrochemical
companies, etc.) usually maintains a good quality.
Front Wheel Mount
Lubricate with a grease gun until the grease is forced
out.
Front Wheel Bearings
Lubricate 3-4 strokes with a grease gun on each set of
wheel bearings.
Deck Spindle
Lower the cutting deck completely.
If a grease gun without rubber hose is used, the foot
plate must be removed to access the center spindle.
Lubricate with a grease gun, 2-3 strokes per spindle.
8058-068
Lubricating front wheels
46
8058-131
Deck spindle
8058-058
Center spindle
LUBRICATION
Transaxle (Transmission) Fluid Change
This transaxle is designed with an external filter for
ease of maintenance. To ensure constant fluid quality
levels and longer life, an oil filter change interval of
every 200 hours is recommended.
The following procedure is performed with the
transaxles installed in the mower and the mower on
level ground. Apply the pump release valve for each
transaxle and set the parking brake.
1. Remove the three ¼" filter guard screws and filter
guard. Clean any loose debris from around the
perimeter of the filter. See illustration.
2. Place an oil drain pan (12" or more diameter and
8 qt. capacity is optimal) beneath the oil filter.
Remove the oil filter from the transaxle.
Drain old oil filters of all free-flowing oil prior
to disposal. Place used oil in appropriate
containers and dispose of it in accordance with
laws in your area.
11. Install and torque the top port plugs to 180 in./lbs.
12. Continue to fill the transaxles through the
expansion tank until the FULL COLD line is
reached (this will take approximately 23 additional
ounces).
13. Reinstall the expansion tank cap by hand. Do not
overtighten.
14. Proceed to purging procedure.
2
3. After the oil has drained, wipe the filter base
surface and apply a film of new oil to the gasket of
the replacement filter.
4. Install the new filter by hand, turning it threequarters to one full turn after the filter gasket
contacts the filter base surface.
5. Reinstall the filter guard. Torque screws to
65 in/lbs. each.
6. Repeat steps on the opposite side.
7. Drain old oil filters of all free flowing oil prior to
disposal. Place used oil in appropriate containers
and dispose of it in accordance with laws in your
area.
8. Remove the top port plug (see illustration) from the
left side and right side of the transaxles prior to
filling with oil. This will allow the transaxles to vent
during oil fill.
9. Remove the cap from the transaxles’ expansion
tank located on the vehicle frame.
10. Fill with 20W50 motor oil until oil just appears
at the bottom of each transaxles’ top port
(approximately 2 quarts per transaxle, 4 quarts
total). Install the top port lug into each transaxle as
the oil level reaches the port.
3
1
8019-010
1. Filter guard
2. Transaxle filter
3. Top port plug
ZT-3400 filter change
47
LUBRICATION
Transmission Purging
Due to the effects air has on efficiency in hydrostatic
drive applications, it is critical to purge the system.
These purge procedures should be implemented
any time a hydrostatic system has been opened to
facilitate maintenance or any additional oil has been
added to the system.
Resulting symptoms in hydrostatic systems may be:
• Noisy operation.
• Lack of power or drive after short term operation.
• High operation temperature and excessive
expansion of oil.
• Shortened component life.
Before starting, make sure the oil tank is at the proper
oil level. If not, fill to the specifications outlined above.
The following procedures are best performed with the
vehicle drive wheels off the ground, then repeated
under normal operating conditions.
See Moving Machine By Hand in the Operation
section for bypass linkage adjustments.
1. Disengage the brake, if activated.
2. With the bypass linkage disengaged and the
engine running at fast idle, slowly move the
directional control in both forward and reverse
directions five or six times. As air is purged from
the unit, the oil level will drop.
3. With the bypass linkage engaged and the engine
running, slowly move the directional control in both
forward and reverse directions five or six times.
Check the oil level and add oil as required after
stopping the engine.
4. It may be necessary to repeat Steps 2 and 3 until
all the air is completely purged from the system.
When the hydraulic drive operates at normal noise
levels and moves smoothly forward and reverse at
normal speeds, the hydraulic drive is considered
purged.
5. After the vehicle has been used two times, the oil
level should be checked while the oil is cold and
adjusted accordingly.
48
TROUBLESHOOTING GUIDE
ProblemCause
Engine will not start• Blade switch is engaged
• Steering controls are not locked in the neutral position
• Parking brake is not activated
• Battery is dead
• Contamination in the carburetor or fuel line
• Fuel supply is closed or the tap for the fuel tank
is in the wrong position
• Clogged fuel filter or fuel line
• Faulty ignition system
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 Safety System
in the Maintenance section
Engine runs rough• Faulty carburetor
• Clogged fuel filter or jet
• Clogged ventilation valve on the fuel cap
• Fuel tank nearly empty
• Fouled spark plug
• Spark plug is loose
• Rich fuel mixture or fuel-air mixture (gasoline)
• Wrong fuel type (gasoline)
• Water in the fuel (gasoline)
• Clogged air filter
Engine seems weak• Clogged air filter
• Fouled spark plugs
• Carburetor incorrectly adjusted
49
TROUBLESHOOTING GUIDE
ProblemCause
Machine vibrates• Blades are loose
• Blades are incorrectly balanced
• Engine is loose
Engine overheats• Clogged air intake or cooling fins
• Engine overloaded
• Poor ventilation around engine
• Defective engine speed regulator
• Too little or no oil in the engine
• Fouled spark plug
Battery not charging• Poor contact with battery terminal cable connectors
• Charging lead is disconnected
Machine moves slowly, unevenly,
or not at all
Mower deck not engaging• Drive belt for the mower deck has come loose
Hydraulic drive leaks oil• Damaged seals, housing, or gaskets
Uneven mowing results• Unequal tire pressure on the left and right sides
• Parking brake on
• Bypass valve on pump open
• Drive belt for the transmission gears slack or has come off
• Air in hydraulic system
• Contact for the electromagnetic coupling has loosened
• Blade switch is faulty or has come loose from cable contact
• Fuse has blown
• Air trapped in hydraulic system
• 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
50
STORAGE
Winter Storage
The machine should be readied for storage at the
end of the mowing season, or if it will not be in use for
more 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 specified 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 a stabilizer has been added.
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 flames, sparks, or a pilot light
such as in a boiler, hot water tank, clothes
drier, etc. Handle the fuel with care. It is
very flammable and can cause serious
personal injury and property damage.
Drain the fuel outdoors, into an approved
container. Store the fuel away from open
flame or any source of ignition. Never use
gasoline for cleaning. Use a degreaser
and warm water.
To ready the machine for storage, follow these steps:
1. Thoroughly clean the machine, especially under
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.
2. Inspect the machine for worn or damaged parts
and tighten any nuts or screws that may have
become loose.
3. Change the engine oil; dispose of properly.
4. Empty the fuel tanks or add a fuel stabilizer. Start
the engine and allow it to run until the carburetor
is drained of fuel or the stabilizer has reached the
carburetor.
5. Remove the spark plug and pour about a
tablespoon of engine oil into the cylinder. Turn
over the engine so that the oil is evenly distributed
and then refit the spark plug.
6. Lubricate all grease zerks, joints, and axles.
7. Remove the battery. Clean, charge, and store the
battery in a cool place, but protect it from direct
cold.
8. Store the machine in a clean, dry place and cover
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 check-up at an authorized service
workshop is a good way to ensure that the machine
performs its best the following season.
51
WIRING DIAGRAM
TIMER SCHEMATIC
52
GradeSAE Grade 5SAE Grade 8Flangelock Screw
Sizeft./lbsNmft./lbsNmft./lbsNm
¼
5
/16
3
/8
7
/16
½
9
/16
5
/8
¾
7
/8
Shank Size (Diameter in inches, fine or
coarse thread)
11/8
9121318
182428382433
314246624054
506875108
75102115156
110150165224
150203225305
250339370502
378513591801
782106014101912
TECHNICAL DATA
Torque Specifications
Hex Head Cap Screws
The torque values shown should be used as a
general guideline when specific torque values are not given.
Shank Size (Diameter in millimeters, fine or coarse thread)
M275307074749969041205
53
TECHNICAL DATA
Engine
ManufacturerKawasaki
TypeFS691V
Power23 HP
LubricationPressure w/ Oil Filter
FuelMin 87 octane unleaded (Max
ethyl alcohol 10%, Max MTBE 15%)
Fuel tanks capacity5 gallons / 18.8 liters
CoolingAir cooled
Alternator12v 15 amp @ 3600 rpm
StarterElectric
Transmission
TransmissionZT-3400 Hyrdo Gear
Speed and direction controlsDual levers, foam gripped
Speed forward0-10 mph - 0-16.1 Km/h
Speed reverse0-5 mph - 0-8 Km/h
BrakesMechanical
Front caster tires, smooth tread13 x 6.5-6
Rear tires, turf pneumatic23 x 10.5-12
Tire pressures15 PSI / 103 kPa / 1 bar
Frame
Cutting Width61" (155 cm)
Cutting Height1½"-4½" (3.8-11.4 cm)
Uncut Circle0
Number of Blades3
Blade Length21" / 53.3 cm
Anti-scalp Rollers3 adjustable
SeatPremium Comm EVC
Hinged Arm RestsYes
Hour MeterDigital
Blade Engagement200 ft-lb Ogura
Deck Construction11 gauge
Productivity4.9 acres/h / 19,829 m
Dimension
Weight955 lbs / 437 kg
Base Machine Length75½" / 192 cm
Base Machine Height42" / 107 cm
Base Machine Width49" / 125 cm
Overall Width, Chute Up61¼" / 156 cm
Overall Width, Chute Down76" / 193 cm
Overall Height, ROPS Up72" / 184 cm
54
1)
1)
The power rating as declared by
the engine manufacturer is the
average gross power output at
the specified RPM of a typical
production engine for the engine
model measured using SAE
Standards for engine gross power.
Refer to the engine manufacturer
engine specifications.
2
/h
CONFORMITY CERTIFICATES
USA requirements
Labels are placed on the engine and/or in the engine
compartment stating that the machine will fulfill 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.
Certificates can also be supplied with the machine at
delivery or written in the Engine manual. Take care of
them as they are valuable documents.
55
SERVICE JOURNAL
Action
Delivery Service
Charge and connect the battery
Adjust the tire pressure of all wheels to 15 PSI (1 bar)
Connect the contact box to the cable for the seat’s safety switch
Check hydraulic oil level
Check hydraulic hoses for kinking or leaks
Check neutral position
Fill with fuel and open the fuel shut off valve
Start the engine
Check that there is drive to both wheels
Check mower deck pitch and adjustment
Check:
Safety switch for the parking brake
Safety switch for the mower deck
Safety switch in the seat
Safety switch in the steering controls
Parking brake functionality and adjustment
Driving forward
Driving backward
Engaging the blades
Check the idle speed
Check the engine high idle speed
Inform the customer about:
Date, mtr reading, stamp, sign
¨
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The need and advantages of following the service schedule
The need and advantages of leaving the machine for service
The effects of service and maintaining a service journal on the machine’s
resale value
Application areas for mulching
Fill in the sales papers, etc.
56
¨
¨
¨
¨
Delivery service has
been carried out
No remaining notes
Certified:
SERVICE JOURNAL
Action
After 10 hours
Change the engine oil
Change the oil filter
Inspect hydraulic hoses
Inspect hydraulic belt
Inspect hydraulic filter
Check neutral position
Check safety system
Check seat belt
Check ROPS
Check fuel system for leaks
Inspect safety guards and shields
Date, mtr reading, stamp, sign
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Check brake adjustment
¨
57
SERVICE JOURNAL
Action
Daily Service
Clean debris from mower
Check engine oil level
Check the tire pressures
Check underside of deck
Inspect deck pulleys
Check/clean the engine’s cooling air intake
Check safety system
Check seat belt
Check ROPS
Check fuel system for leaks
Inspect safety guards and shields
Date, mtr reading, stamp, sign
¨
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Check brake adjustment
¨
58
SERVICE JOURNAL
Action
50-Hour Service
Clean debris from mower
Check engine oil level
Check the tire pressures
Check underside of deck
Inspect deck pulleys
Check/clean the engine’s cooling air intake
Check safety system
Check seat belt
Check ROPS
Check fuel system for leaks
Inspect safety guards and shields
Date, mtr reading, stamp, sign
¨
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Check brake adjustment
¨
59
SERVICE JOURNAL
Action
250-Hour Service
Grease fittings (caster pivots and caster wheels)
Inspect dampers
Inspect frame
Inspect throttle cable
Inspect hardware
Check the tire pressures
Change the engine oil and filter
Change air filter
Inspect spark plug
Inspect fuel filter
Check engine RPM
Clean underside of deck
Check blade pitch
Grease blade spindles
Inspect spindle bearings
Inspect deck belt and blades
Inspect idler arm bearings
Inspect deck idler pulleys
Inspect hydraulic filter
Inspect hydraulic drive belt
Inspect hydraulic hoses
Check neutral position
Inspect battery connections
Check safety system
Check seat belt
Check ROPS
Check fuel system for leaks
Inspect safety guards and shields
Check brake adjustment
Date, mtr reading, stamp, sign
¨
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60
SERVICE JOURNAL
Action
500-Hour Service
Grease fittings (caster pivots and caster wheels)
Inspect dampers
Inspect frame
Inspect throttle cable
Inspect hardware
Check the tire pressures
Change the engine oil and filter
Change air filter
Inspect spark plug
Inspect fuel filter
Check engine RPM
Clean underside of deck
Check blade pitch
Grease blade spindles
Inspect spindle bearings
Inspect deck belt and blades
Inspect idler arm bearings
Inspect deck idler pulleys
Change hydraulic oil level
Change hydraulic filter
Replace hydraulic drive belt
Inspect hydraulic hoses
Check neutral position
Inspect battery connections
Load test battery
Clean electrical connections
Inspect the clutch
Check safety system
Check seat belt
Check ROPS
Check fuel system for leaks
Inspect safety guards and shields
Check brake adjustment
Date, mtr reading, stamp, sign
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61
SERVICE JOURNAL
Action
At Least Once Each Year
Clean the engine’s cooling air intake
Replace the air cleaner’s foam pre-filter
Replace the air filter’s paper cartridge
Change the engine oil
Replace the engine oil filter
Check/adjust the cutting height
Check/adjust the parking brake
Clean/Change the spark plugs
Inspect spark plug
Check the engine valve clearance
Date, mtr reading, stamp, sign
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62
www.husqvarna.com
115 620427 Rev A
2013-07-25
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