Husqvarna WG4815E, WG3613E User Manual

Operator´s manual

WG4815E/968999120
WG3613E/968999117

Please read the operator’s manual carefully and make sure you

understand the instructions before using the machine.

English

OPERATOR’S MANUAL

MOWER

WG3613E WG4815E

Contents

Contents ..................................................................1

Introduction ............................................................3

Congratulations ...................................................3

General ...............................................................3

Driving and Transport on Public Roads ..............3

Towing ................................................................3

Operating ............................................................3

Good Service ......................................................4

Manufacturing Number .......................................4

Symbols and Decals ..............................................5

Safety Instructions .................................................7

General Use ........................................................7

Driving on Slopes ................................................9

Children .............................................................10

Maintenance .....................................................11

Transport ...........................................................13

Customer responsibilities ..................................13

Controls ................................................................14

Control Locations ..............................................14

1. Recoil Starter Grip ........................................15

2. Ignition Switch ...............................................15

3. Motion control levers .....................................16

4. Operator Presence Levers ............................16

5. Gear shift lever ..............................................17

6. Neutral Bail ...................................................17

7. Throttle Control and Choke Control ..............18

8. Blade Engagement Lever .............................18

9. Refueling .......................................................19

10. Fuel Shut-off Valve .....................................20

Accessories .......................................................20

Operation ..............................................................21

Before Starting ..................................................21

Starting the Engine ...........................................22

Gearbox ............................................................25

Running .............................................................25

Reversing ..........................................................26

To operate on hills ............................................26

Mowing Tips .....................................................26

Stopping ............................................................28

Stopping the Engine ..........................................29

Adjustment of cutting height ..............................30

Moving machine by Hand .................................33

Maintenance ........................................................ 34

Maintenance Schedule ..................................... 34

Ignition System ................................................. 36

Checking the Safety System ............................ 37

Checking the Engine's Cooling Air Intake ........ 38

Replacing the Air Filter ..................................... 39

Replacing the Fuel Filter .................................. 40

Checking the Fuel Pump’s Air Filter ................. 40

Checking Tire Pressures .................................. 40

Checking the Parking Brake ............................. 41

Checking the V-belts ........................................ 41

Checking the Blades ........................................ 42

Brake Rod Adjustment ..................................... 42

Under side of rear deck .................................... 42

Cleaning and Washing ..................................... 43

Caster Wheels .................................................. 43

Hardware .......................................................... 43

Blade replacement ........................................... 44

Lubrication ........................................................... 45

Lubrication Schedule ........................................ 45

General ............................................................ 45

Lubricating the Cables ..................................... 46

Lubricating in Accordance with the Lubrication

Schedule .......................................................... 46

Trouble Shooting Guide ..................................... 51

Storage ................................................................. 53

Winter Storage ................................................. 53

Service ............................................................. 53

Wiring diagrams .................................................. 54

Technical data .................................................... 55

Torque Specifications ....................................... 56

Conformity Certificates ....................................... 57

USA requirements ............................................ 57

Service Journal .................................................. 58

Delivery Service ............................................... 58

After the First 8 Hours ...................................... 58

25-Hour Service ............................................... 59

50-Hour Service ............................................... 60

100-Hour Service ............................................. 61

300-Hour Service ............................................. 62

At Least Once Each Year ................................. 63

English-1

WARNING !

Failure to follow safe 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 componets contain or
emit chemicals known to the State of California to cause cancer and birth defects or
other reproductive harm.

English-2

INTRODUCTION

Introduction

Congratulations

Thank you for purchasing a Husqvarna Walk-BehindMower. This machine is built for the greatestefficiency
and rapid mowing primarily of large areas. Controls in one place and a transmission regulated by steering
controls contribute to the machine’s performance.

This manual is a valuable document. Following the instructions (use, service, m aintenance, etc.)
can considerably increase the l ifespan of your machine and even increase its resale value.

If you sell your machine, be sure to give this Operator’s Manual to the new owner.
The final chapter of this Operator ’s Manual comprises a Service Journal. E nsure that service and repair

work is documented. A well kept service journal reduces service costs for the season-based maintenance
and affects the machine’s resale value. Take the Operator’s Manual along when the machine is l eft to the
workshop 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.

Driving and Transport on Public Roads

Check applicable road traffic regulations bef ore driving and transport on public roads. If the machine is
transported, you should always use approved fastening equipment and ensure that the machine is well
anchored.

Towing

Do not tow this machine, it may cause damage to the drive system.
Do not tow any trailers, etc. with this mower. They may jackknife or overturn causing damage to the mower

and possibly serious injury to the operator.

Operating

This machine is constructed only f or mowing grass on lawns and other free and level ground without
obstacles such as stones, tree stubs, etc. The machine can also be used for other tasks when equipped
with special accessories provided by the manufacturer,for which the operating instructions are provided in
conjunction with delivery. All other types of use are incorrect. The m anufacturer’s directions concerning
operation, maintenance, and repairs must be carefully followed.

Lawnmowers 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 that are familiar with the
machine’s special characteristics and who are well versed in the safety instructions.

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.

English-3

INTRODUCTION

Good Service

Husqvarna’sproducts 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 t he certificate
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:

This Operator’s Manual belongs to the
machine with manufacturing number:

Engine Transmission

Manufacturing Number

The machine’s manufacturing number can be found on the printed plate of the rear part of the chassi.
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 state the type designation and serial number when ordering spare parts.

The engine’s manufacturing number is stated on a barcode decal. This is placed on t he left side of the
crankcase. The pl ate states:

• The engine’s serial number (E/NO).

• The engine’s type designation (Code).
Please state these when ordering spare parts.

English-4

SYMBOLS AND DECALS

Symbols and Deca ls

These symbols are found on the machine and i n the operator’s manual.
Study them carefully so that you know what they m ean.

WARNING!
Xxxxxxx xxxx xxxxxxxx xxx x

Xxxxx xxxxxx xx.
xx xxxxxxxx xxxxx xxx xx.

Used in this publication to notify the reader of a risk of personal injury, particularly if the reader should
neglect to follow instructions given in the manual.

IMPORTANT INFORMATION
Xxxxxxx xxxx xxxxxxxx xxx xxx

xxxx xxxxxx xx.

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.

Warning!

Noise emissions to
the surroundings in
accordance with the
European Union’s
directive. The
machine’s emission
is stated in the
chapter TECHNICAL

and on the

DATA

decals.
Only machines for European market.

Fast

CE conformity
marking

Warning! Rotating
blades, keep away
from the discharge
deck

ChokeSlow

Do not touch rotating
parts

Fuel

Use
protective
glasses

Useprotective
gloves

Do not stand here

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SYMBOLS AND DECALS

Moving sharp blades
under cover

Keep a safe
distancefrom
the machine.

Read
Operator´s
Manual.

Whole body
exposure to
thrown
objects.

Severing of
fingers & toes.

Rotating
blades

Shut off engine
& remove key
before
performing any
maintenance or
repair work.

English-6

SAFETY INSTRUCTIONS

Safety Instructions

These instructions are for your safety.Read them carefully.

WARNING!
This symbol means that important safety instructions need to be emphasized. It

concerns your safety.

General Use

• Read all instructions in this operator’s
manual and on t he machine before
starting i t. Ensure that you understand
them and then abide by them.

• Learn how to use the machine and its
controls safely and learn how to stop
quickly. Also learn to recognize the safety
decals.

• Only allow the machine to be used by
adults who are familiar with its use.

• Make sure nobody else is in the vicinity of
the machine when you start the engine,
engage the drive, or run the machine.

• Make sure animals and people maintaina
safe distance from the machine.

• Stop the machine if someone enters t he
work area.

• Clear the area of objects such as stones,
toys, steel wire, etc. that may become
caught in the blades and thrown out
before operating unit.

Read the operator’s manual before starting the
machine

8011-630

• Beware of t he discharge deck and do not
point it at any one. Do not use the
machine without the discharge chute in
place.

• Stop the engine and prevent it from
starting before you clean the discharge
deck.

• Remember that the operator is
responsible for dangers or accidents.

• Never take passengers. The machine is
only intended for use by one person.

• Always look down and behind before and
during reversing maneuvers. Look out for
both large and small obstacles.

• Slow down before turning.

8011-631

Clear the area of objects before mowing

8011-632

Never take passengers

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SAFETY INSTRUCTIONS

• Shut off the blades when not mowing.

• Be careful when turning around fixed
objects, so that the bl ades do not hit
them. Never drive over foreign objects.

• Only use the machine in daylight or in
other well-lit conditions. Keep the
machine a safe distance from holes or
other irregularities.Pay attention to other
possible risks.

• Never use the machine if you are tired, if
you have consumed alcohol, or if you are
takingother drugs or medication that can
affect your vision, judgment, or
coordination.

• Beware of traffic when working near or
crossing a road.

• Never leave the machine unsupervised
with the engine running. Always shut
down the blades, engage the parking
brake if so equipped, stop the engine,
and remove the ignition key before
leaving the machine.

• Neverallow children or otherpersons not
trained in the use of the machine to use
or service it. Local laws may regulate the
age of the user.

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 colorless, poisonous
gas. Do not use t he machine
in enclosed spaces.

8011-633

Keep children away from the work area

WARNING!
When using the machine, approved personal protective equipment should 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 toecaps.

• Always wear approved protective glasses
or a full visor when assembling or driving.

• Always wear gloves when handling t he
blades.

• Never wear loose clothing that can get
caught in moving parts.

• Use ear protectors to avoid impaired
hearing.

8011-670

Personal protective equipment

English-8

SAFETY INSTRUCTIONS

Driving on Slopes

Driving on slopes is one of the operations
where the risk is greatest that the driver will
lose controlor the machine willtip over,which
can result in serious injury or death. All
slopes require extra caution. If you cannot
reverse up a slope or if you feel unsure,
do not mow the slope.

Do as follows

• Remove obstacles such as stones,
tree branches, etc.

• Watch out for and avoid driving over
furrows, holes, and bumps. On uneven
terrain, the machine can tip more easily.
Long grass can hide obstacles.

• Mow up and down, not side-to-side.

• If machine stops while going uphill,
disengage blades and back down slowly.

• Drive evenly and slowly. Use small
movements of the steering controls.

• Be extra cautious with any additional
equipment, which can alter the
machine’s stability.

Do not

• Do not make sudden changes in speed
or direction.

• Do not drive the machine on terrain that
slopes more than 10°.

• Do not mow near verges, ditches, or
banks. The machine can suddenly spin
around if a wheel goes over the edge of
adroporditch,orifanedgegivesway.

• Do not mow wet grass. It is slippery,and
the tires can lose their grip, so that the
machine slides.

• Avoid unnecessary turns on slopes, and
if it proves necessary, turn slowly and
gradually downward, if possible.

8011-634

Mow up and down, not side-to-side

8011-635

Be extra cautious when driving on slopes

• Avoid starting or stopping on a slope. If
the tires begin to slip, shut off the blades
and drive slowly straight down the slope.

English-9

SAFETY INSTRUCTIONS

Children

• Serious accidentsmay occur if you fail to
be on guard f or children in the vicinity of
the machine.Children are often attracted
to the machine and mowing work. Never
assume that children will stay where you
last saw them.

• Keepchildrenawayfromthemowing
area and under close supervision by
another adult.

• Keep an eye out and shut off the
machine if children enter the work area.

• Beforeand during a reversing maneuver,
look backward and downward for small
children.

• Never allow a child to ride with you.
They can fall off and injure themselves
seriously or prevent risk-free
maneuvering of the machine.

• Never allow children to operate the
machine.

• Be particularly cautious near corners,
bushes, trees, or other objects that block
your view.

8011-636

Never allow children to operate the machine

English-10

SAFETY INSTRUCTIONS

D

Maintenance

WARNING!
The engine must not be started when the protective plate for the mower deck’s drive

belt is removed.

• Stop the engine. Prevent the enginefrom
starting by removing the spark plug
cables from the spark plugs or by
removing the ignition key before making
any adjustments or performing
maintenance.

• Never fill the fuel tank indoors.

• Fuel and fuel fumes are poisonous and
extremely flammable. Be especially
cautious when handling fuel, as
carelessness can result i n personal
injury or fire.

• Onlystore fuel in containers approved for
the purpose.

• Never remove the fuel tank cap and
never fill the fuel tank while the engine is
running.

• Allow the engine to cool before refueling.
Do not smoke. Do not fill fuel in the
vicinity of sparks or open flames.

• If leaks arise in the fuel system, the
engine must not be started until the
problem has been resolved.

• Store the machine and fuel in such a way
that there is no risk of leaking fuel or fuel
vapor leading t o damages.

• Check the fuel level before each use and
leave space for the fuel to expand,
because the heat from the engine and
the sun may otherwise cause the fuel to
expand and overflow.

• Avoid overfilling. If you spill fuel on the
machine,wipe up the spill and wait untilit
has evaporated before starting the
engine. If you have spilled fuel on your
clothing, change your clothing.

• Allow the machine to cool before taking
any actions in the engine compartment.

• Ensurethat nuts and bolts,especially the
fasteningboltsfor the bladeattachments,
are properly tightened and that the
equipment is in good condition.

8011-637

Never fill the fuel tank indoors

WARNING!
The engine, the exhaust system

componentsbecome very warm
during operation.
Risk for burns if touched.

8011-777

o not smoke when using machine.

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SAFETY INSTRUCTIONS

• Do not modify safety equipment. Check
regularly to be sure it works properly.
The machine must not be driven wi th
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 you run the
engine too fast, you risk damaging the
machine components.

• Never use the machine indoors or in
spaces lacking proper ventilation. The
exhaustfumes contain carbonmonoxide,
an odorless, poisonous, and lethal gas.

• Stop and inspect the equipment if you
run over or into anything. If necessary,
make repairs before starting.

• Never make adjustments with the engine
running.

• Themachine is testedand approvedonly
with the equipment originally provided or
recommended by the manufacturer.

• The blades are sharp and can cause
cutsand gashes. Wrap the blades or use
protective gloves when handling them.

• Check the parking brake’s functionality
regularly. Adjust and service as
necessary.

• When mowing in familiar areas use the
mulch deck.

• Reduce the risk of fire by removing
grass, leaves, and other debris that may
haveaccumulated on the machine. Allow
the machine to cool before putting it in
storage.

• Have your mower i nspected and
serviced each year by an authorized
Husqvarna dealer.

• Use only authentic Husqvarna
replacement parts to insure that the
safety and quality of your mower is
maintained.

8011-638

Never drive the machine in an enclosed space

Use protective glasses at
maintenance work.

• Safety decals should be replaced if they
are missing or illegible. Decals can be
purchased from your Husqvarna dealer.

English-12

8011-639

Clean the machine regularly

SAFETY INSTRUCTIONS

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 parkingbrake, turn
off the fuel supply, and fasten the
machine with approved fastening
devices, such as bands, chains, or
ropes, when transporting.

• Check and abide by local traffic
regulations before transporting or driving
the machine on any road.

• Do not tow this machine, it may cause
damage to the drive system.

• Do not tow any trailers, etc. with this
mower. They may jackknife or overturn
causing damage to the mower and
possibly serious injury to the operator.

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. Reverse the
machine onto the transport vehicle to
avoid tipping it over.

Customer responsibilities

• Read and observe the safety rules.

• Followa regular schedule in maintaining,
caring for and using your mower.

• Follow the instructions under
"Maintenance” and "Storage” sections of
this owner’s manual.

WARNING!
This mower is equipped with an internal combustion engine and should not be

used on or near any unimproved forest-covered, bush-covered or grass-covered
land unless the engine’s exhaust system is equipped with a spark arrester
meeting applicable local or state laws (if any). If a spark arrester is used, it should
be maintained in effective working order by the operator.

A spark arrester for the muffler is available
through your authorized Husqvarna dealer.

English-13

CONTROLS

L

Controls

This operator’s manual describes the
Husqvarna Walk-Behind Mowers WG3613E
and WG4815E. The machines are fitted wi th
a Kawasaki four-stroke V-Twin engine, for
data see “Technicaldata” on page 55.

Transmissionfromthe engine is madevia two
V-belt, one for each wheel. Using the left and
right motion controls, the speed of the rear
wheels is regulated for steering of the
machine.

8011-473

Walk behind mower

8011-776

ocations of the controls

Control Locations

Page Page

1. Recoil starter grip 15 6. Neutral bail 17

2. Ignition switch 15 7. Throttle control and
choke control

3. Motion control levers 16 8. Blade engagement lever 18

4. Operator presence levers 16 9. Fuel cap 19

5. Gear shift lever 17 10. Fuel shut-off valve 20

English-14

18

CONTROLS

R

I

1. Recoil Starter Grip

IMPORTANT IN FORMATION
Do not let recoil cord snap back by itself.

This may damage the cord or the recoil
starter assembly.

Pull the recoil starter grip slowly until you feel
compression, then pull it briskly.

Normally this engine will not backfire. If you
get backfires, contact your Husqvarna dealer
for service.

2. Ignition Switch

Theignitionkeyswitchisplacedonthe
control panel.

8011-476

ecoil starter grip

8011-475

gnition key

English-15

CONTROLS

3. Mo tion control levers

The machine’s speed and direction are
continuously variable using the two motion
control levers.

When both controls are in the neutral
position, the machine stands still. The
controls can be locked in neutral position by
the Neutral bai l

By moving both controls an equal amount the
machine moves in a straight line forward.

WARNING!
The machine can turn very

rapidly if one steering control
is moved much further than the
other.

In order, for example, to turn right while
moving forward, move the right control
towards the handle (neutral position). The
rotation of the right wheel is reduced and the
machine turns to the right.

To stop forward travel pull levers back.

4. Operator Presence Levers

Located on the handle. As an additional
safety feature, these mowers are equipped
with an Operators Presence System. This is
an electrical interlock safety system which is
activated by depressing either one or both of
the Operator Presence Levers at the handle
grips.

8011-478

Motion controls levers

Releasing both Operators Presence Levers
while mowing or transporting will break the
electrical circuit and cause the engine and
mower to stop. The mower will not st op
immediately after releasing the O.P. levers,
some travel does occur.

One or both levers must be pressed against
the handle for the engine to remain running,
when the blades are engaged or neutral lock
bail is not l ocked in drive levers.

English-16

8011-683

Operator presence levers

CONTROLS

5. Gear shift lever

Gear shift lever has 5 gears speed. There is
also a neutral gear and reverse gear.

Grip motion control levers before shifting
gears. This will clutch the gearbox.

6. Neutral Bail

Keeps the unit from moving while idling. The
neutral bail will lock the drive levers in neutral
position and must be activated when starting
the engine.

8011-482

Gear drive lever in neutral position

Parking Brake

The parking brake on geardrive machines is
applied when neutral bail is in lock position.

8011-477

Neutral bail

English-17

CONTROLS

7. Throttle Control and Choke Control

Choke Control

The choke control is used for cold starts to
provide the engine with a richer fuel mixture.

The choke control is combined with the
Throttle control. To engage the choke, the
throttle control is moved past the max rpm
setting to i ts choke position.

Do not use the choke when starting a warm
engine.

Throttle Control

The throttle control regulates the engine
speed and thereby the rate of rotation of the
blades,assuming the control forengaging the
mower deck is pulled forward, see “8. B lade
Engagement Lever” on page 18.

8011-682

Choke control

In order to increase or decrease the engine
speed, the control is moved forward or
backward respectively.

Avoid idling the engine for long periods, as
there is a risk of the spark plugs fouling.

USE FULL THROTTLE WHEN MOWING,for
best mower performance.

8. Blade Engagement Lever

The blade engagement lever is on t he left
support by the control panel.

In order to engage the blades, push the lever
forward. The blades are disengaged when
the lever is pulled backward.

The blade engagement lever needs to be
adjusted so the lever does not come in
contact with control panel when the lever is in
the off position.

8011-682

Throttle control

English-18

8011-474

Blade engagement lever

CONTROLS

9. Refueling

The machine has one fuel tank. The tank
volume is 5.3 gallons / 20 liters.

The engine should be run on a mi nimum of
87-octane unleaded gasoline (no oil mix).
Alsosee TechnicalData concerningmethanol
and ethanol fuels.

WARNING!
Gasoline is highly flammable.

Observe caution and fill the
tank outdoors
(see the safety rules).

.

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.

When operating in temperatures below 32° F.
(0°C.), use fresh, clean winter grade gasoline
to help insure good cold weather starting.

8011-418

Fuel tank

IMPORTANT INFORMATION
Experience indicates that alcohol

blended fuels (called gasohol or using
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 the run until the fuel
lines and carburetor are empty. Use fresh
fuel the next season. See Storage
Instructions for additional i nformation.
Never use engine or carburetor cleaners
in the fuel tank or permanent damage
may occur.

English-19

CONTROLS

10. Fuel Shut-off Valve

The fuel shut-off valve i s placed on the fuel
line below the f uel tank. The valve has two
positions; ON and OFF. The illustration
shows the valve in the closed (OFF) position.

IMPORTANT I NFORMATION
Close fuel valve at the end of each mowing

job.

Accessories

For mulching, there i s a BioClip attachment
available. This is mounted underneath the
mower deck and consists of control plates
and BioClip blades.

8011-437

Fuel shut off valve, closed (OFF)

BioClip attachment

8011-566

English-20

OPERATION

D

N

Operation

WARNING!
Be thoroughly familiar with all

controlstheir function and how
to operate them before
operating the mower.

Before Starting

• Read the sections “Safety Instructions”
on page 7, and “Controls” on page 14,
before starting the machine.

• Perform the daily maintenance before
starting(see “Maintenance Schedule” on
page 34).

• Check that there is sufficient fuel in the
fuel tank.

The following conditions must be fulfilled
before the engine can be started:

• The control for engaging the blades must
be in disengaged position.

• The neutral bail for the motion control
levers must be in locked position.

WARNING!
Do not operate the mower if the

interlock safety system allows
operation or starting in any
unsafe condition.

8011-474

isengaged blades

8011-477

eutral lock bail

English-21

Starting the Engine

B

G

N

WARNING!
Never run the engine indoors,

in enclosed or poorly
ventilated spaces. Engine
exhaust fumes contain
poisonous carbon monoxide.

1. Move blade engagement lever to the
OFF position, so the interlock will allow
engine to start.

OPERATION

2. Check gear shifter to be sure it is in the
neutral position.

3. While on level terrain, squeeze both
motion control levers and lift up on the
neutral bail to lock it into the neutral lock
position. This will ensure that the mower
is braked.

8011-474

lade engagement l ever

8011-482

ear shifter

8011-477

eutral bail in neutral lock position

English-22

4. Open fuel shut-off valve.

F

I

C

P

5. Turn i gnition key to ON position.

OPERATION

8011-438

uel shut-off valve, Open

6. Setthrottle controland engage the choke
(if needed).
Do not use choke when the engine is
warm.

IMPORTANT IN FORMATION
Do not let recoil cord snap back by itself.

This may damage the cord or the recoil
starter assembly.

7. Pull the recoil starter grip slowly until you
feel compression, then pull it briskly.

If the engine won´t start in three pulls,
open the choke and try again.

8011-475

gnition key

8011-682

hoke and Throttle controls

8011-476

ull the starter grip

English-23

8. Warm engine momentarily,then

P

B

disengage the choke until engine runs
smoothly, approximately 1/2 throttle.

WARNING!
Be sure all persons are

clear
of area before engaging the
blades.

IMPORTANT IN FORMATION
To prolong spindle bearing clutch and belt

life engage and disengage blades at
approximately ½ throttle.

9. Depress one operator presence lever.
Engage the blades and set the desired
rpm. The best cutting and bagging is
obtained with engine at top rpm. Grip
motion control levers before shifting
gears.

OPERATION

English-24

8011-683

resence lever

8011-474

lade engaged

OPERATION

Gearbox

The gear drive machines have a 5-speed
gearbox. The gear selector is placed under
the control panel.

Only shift gear when the machine is standing
still and on level ground.

Running

1. Depress one operator presence lever
and shift t ransmission to the desired
gear.

2. Unlock the motion control levers by
pushing the neutral bail down out of the
neutral slots. Slowly release both levers
at the same time to begin forward
motion.

3. The steering system of this mower uses
individual right and left motion control
leverson the handle bars. Squeezing the
lever will reduce tension on the wheel
drive belt eliminating power to that
wheel. With the opposite wheel still
under power a turn is accomplished.

4. If the motion control lever is squeezed
even tighter t he brake will be applied t o
that wheel and a tighter more abrupt turn
is accomplished. - turn left by squeezing
the left hand lever or turn right by
squeezing the right hand lever. If you
squeeze both levers the mower will stop.

8011-482

Gear selector

8011-403

1. Operator Presence Lever

2. Drive Lever

3. Neutral Bail

4. Handle

E-handle with bail in neutral position

English-25

OPERATION

Reversing

Depress one operator presence lever and
shift transmission to the reverse gear. Grip
motion control levers before shifting gear.

T o operate on hills

To operate on slopes is a dangerous mowing
job. Read the Safety Instructions section
“Driving on Slopes” on page 8.

8011-482

Clutch drive before shifting gear

WARNING!
Do

not drive up or down hills
with slopes greater than 10
degrees. And do not drive
across any slopes.

• The slowest speed possible should be
used before starting up or down hills.

• Avoid stopping or changing speed on
hills.

• Make all turns slowly.

Mowing Tips

• Observe and mark rocks and other fixed
objects in order to avoid collisions.

• The cutting deck should be properly
leveled for best mowing performance.
The blades should be parallel to the
ground or slightly tipped down in the
front.

WARNING!
Clear the lawn of stones and

other objects that can be
thrown out by the blades.

• Only use sharp blades.

• Check tire pressure. Different pressure
can cause uneven mowing results.

• The left hand side of the deck should be
used for trimming.

English-26

• Drive so that clippings are discharged
onto the area that has been cut. Have
the cut area to the right of the mower.
This will result in more even distribution
of clippings and a more uniform cut. To
avoid clippings spraying on roads etc,
mow the first two patterns in opposite
direction.

• Begin with a high cutting height and
reduce it until the desired mowing result
is attained.

The average lawn should be cut to 2 1/2"
(64 mm) during the cool season and to
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
15 cm (6") 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 l ow speed (the machine
moves slowly).If the grass is not too long
and dense, the driving speed can be
increased without noticeably
depreciating the mowing result.

OPERATION

8011-409

Mowing patterns

• The finest lawns are obtainedby mowing
often. The mowing becomes more even
and the grass clippings more evenly
distributedover the mown area. The total
time taken is not increased as a higher
drivingspeed can be used without poorer
mowing results.

• Avoid mowing wet lawns. The mowing
result is poorer because the wheels sink
into the soft lawn, clumps build, and t he
grass clippings will fasten under the
cowling.

English-27

• Hose the mower deck with water after
each use. Hose especially underneath.
Do not sprayhigh pressure spray directly
on top of s pindles.

• Avoid getting engine too wet.

WARNING
Never drive the m achine on

terrain that slopes more
than 10

o

.

Mow slopes up and dow n,
never side-to-side. Avoid
sudden directional changes.

Stopping

Emergency stop

OPERATION

8011-514

Clean mower deck after each use

Release both hands from the operate
presence lever handles.
When both operatorpresence levers return to
their outer position, the engine will quit and
the mower will stop.

or
Pull both drive levers firmly against handle

grips and hold them securely in place. Use
thumbs to lift the neutral bail up into the
neutral slot. Then stop engine by pulling
throttle control back and shut off the key
switch.

Normal operating stop

1. Pull both drive levers ( traction levers)
firmly toward the handle grips to stop
forward motion.

2. Use thumbs to lift neutral bail into the
neutral slots.

3. Move the throttle control to the slow
position.

4. Move blade engagement control to the
off position.

5. Move shift lever to the neutral position.

6. Stop engine, refer to “Stopping the
Engine” on page 29.

IMPORTANT I NFORMATION
Close fuel valve at the end of each mowing

job.

English-28

OPERATION

P

D

I

F

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.

1. When the machine is standing still, set
the neutral bail in the lock position.

2. Disengage the blades by pulling the
blade egagement l ever back.

8011-477

arking brake

3. Movethe throttle to theminimum position
(tortoisesymbol). Turn the ignition key to
the stop position.

4. Remove the ignition key.

5. Shut OFF the f uel valve.

IMPORTANT I NFORMATION
Close fuel valve at the end of each mowing

job.

8011-474

isengage the blades

8011-475

gnition key

8011-437

uel valve

English-29

OPERATION

1
2
A

R

1
2
3

C

Adjustment of cutting height

The cutting height can be adjusted by three
methods:

• Moving spacers between the upper side
and the lower side of the caster swivel
according to "Cutting height table". For
instruction, see below.

• Moving spacers between the upper side
and the lower side of the blades
according to "Cutting height table". For
removing and installation of blades, refer
to “Blade replacement” on page 44.

• Rearaxle height adjustmentaccording to
the following instruction.

1. To adjust rear axle, stop engine and
place motion control levers in the neutral
lock position, remove spark plug wires.

2. Remove l ower belt shield from underside
of rear deck for better access to axle
adjustment bolts.

3. Loosen axle pivot bolts and axle
adjustment bolts. See illustration.

4. Place a jack under center of rear deck,
raise the jack slightly so axle adjustment
bolts may be removed.

5. With the jack, raise or lower the rear
deck to the desired position using the
chart to ensure proper height.

6. Reinstall the axle adjustment bolts and
tighten. A tapered punch may be used to
help align the holes.

8011-408

. Axle pivot bolt
. Securing bolts (Loosen each side)

-D. Axle adjustment bolts

ear axle height adjustment

7. Using the "Cutting height table", find the
correct number of spacers to be placed
under the caster swivel.

8. Remove the lynch pin and washer from
the top of the caster and reposition
spacers to the desired cutting height
from the table. See illustration.

IMPORTANT I NFORMATION
It may be necessary to readjust drive and

brake linkages.

8011-405

IMPORTANT INFORMATION
To achieve the best quality cut, the blades

should be level with the ground or slightly
tipped forward.

English-30

. Machinery bushing
. Caster swivel
. ½" "C" Spacers

aster height adjustment

Cutting height table

OPERATION

Axle

position

A0411/2"(38

Spacers

below

caster arm

1413/4"(44

Blade

spacers

undercutter

housing

313/4"(44

2 2" (51 mm)
121/4"(57

021/2"(64

3 2" (51 mm)
221/4"(57

121/2"(64

Cutting

height

mm)

mm)

mm)

mm)

mm)

mm)

mm)

023/4"(70

mm)

B2421/2"(64

mm)

323/4"(70

mm)
2 3" (76 mm)
131/4"(83

mm)
031/2"(89

mm)

3 4 3" (76 mm)

331/4"(83

mm)
231/2"(89

mm)
133/4"(95

mm)
0 4" (102 mm)

English-31

OPERATION

Axle

position

C3431/4"(83

Spacers

below

caster arm

4431/2"(89

Blade

spacers

undercutter

housing

331/2"(89

2 3 3/4 (95

1 4" (102 mm)
0 4 1/4" (108

333/4"(95

2 4" (102 mm)
1 4 1/4" (108

Cutting

height

mm)

mm)

mm)

mm)

mm)

mm)

mm)
0 4 1/2" (114

mm)

D4433/4"(95

mm)
3 4" (102 mm)
2 4 1/4" (108

mm)
1 4 1/2" (114

mm)
0 4 3/4" (121

mm)

5 4 4" (102 mm)

3 4 1/4" (108

mm)
2 4 1/2" (114

mm)
1 4 3/4" (121

mm)

English-32

0 5" (127 mm)

OPERATION

Moving machine by Hand

In order for the machine to be moved with the
engine turned off, make sure the gear shift
lever is in the neutral position and the motion
control levers are not in the locked position.
The locked position is used when the machine
is parked.

8011-482

Gear shift lever in neutral position

English-33

MAINTENANCE

Maintenance

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 an
authorized service workshop i s recommended i n order to maintain your machine in the best possible
condition and to ensure safe operation.

Read Safety Instructions section “Maintenance” on page 10.

z = Described in this manual
 = Not described in this manual

Daily

mainte-

nance

Maintenance Page Before After 25 50 100 300

Check for fuel and oil leakages ­Check the parking brake 41
Check the engine’s oil level (every r efueling) 47
Front and rear tires 40
Check the fuel pump’s air filter 40
Check the safety system 37
Check/clean the engine’s cooling air intake 38
Check the cutting deck 42

Check underside of rear deck 42
Check hardware (screws, nuts, etc.) 43
Start the engine and blades, listen for unusual

sounds
Clean under the mower deck 43

Inspect/Replace blades
Check the condition of belts, belt pulleys, etc. 41

Check for damage ­Check the tire pressures 40
Thoroughly clean around the engine ­Clean around belts, belt pulleys, etc. -

2)

44



z

z

z

z

-

z

Weekly
mainte-

nance

At
least
once
each

year

Maintenanceinterval

in hours

z

z

zz

z

z

z



z

z

z



z





English-34

MAINTENANCE

Daily

mainte-

nance

Maintenance Page Before After 25 50 100 300

Check/adjust the cutting height ­Linkages and adjustments 43
Check throttle and choke cables 46
Clean the air cleaner’s pre-filter (foam) 39

Clean the air cleaner’s filter cartridge

2)

39

Weekly
mainte-

nance

At

Maintenanceinterval
least
once
each

year

in hours



z

z

zz

zz

(paper filter)
Change the engine oil

1)

Replace the engine oil filter (every 200 hours) 47
Clean/Replace the spark plugs 36
Replace the fuel filter 40
Clean the cooling fins -

Check the engine valve clearance

4)

Replace the air cleaner ’s pre-filter (foam) 39
Replace the air filter (paper filter,

every 200 hours)

2)

Check the caster wheel bolt (every 200 hours) 43

67

39

zz

zz

zz

zz



-



zz

zz

z

Lubricate according to Lubrication Schedule 65
Perform the 300-hour service

4)

95

Check/adjust the parking brake -

1)

Firstchangeafter 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.

zz zzzzz





z = Described in this manual
 = Not described in this manual

WARNING!
No adjustments or maintenance to be carried out unless:

• The engine is stopped.

• The ignition key has been removed.

• The parking brake is on.

English-35

MAINTENANCE

4

Ignition System

The engine is equipped with an el ectronic
ignition system. Only the spark plugs require
maintenance.

For recommendedspark plugs, see Technical
Data.

1. Remove the ignition cable boot and
clean around the spark plug.

2. Remove the spark plugs with a spark
plug socket wrench.

3. Check the spark plugs. Replace the
sparkplug if the electrodes are burned or
if the insulation is cracked or damaged.
Clean the spark plug with a steel brush if
it is to be reused.

4. Measure the electrode gap with a
gapping tool. The gap should be 0.030”
(0.75 mm). Adjust as necessary by
bending the side electrode.

5. Reinsertthe spark plugs, turning by hand
to avoid damaging the threads.

6. After the spark plug is seated, tighten it
using a spark plug wrench so that the
washeris compressed. Usedspark plugs
should be turned 1/8 of a turn from the
seated position. New spark plugs should
be turned 1/4 of a turn from the seated
position.

IMPORTANT INFORMATION
Fitting the wrong spark plug type can

damage the engine.
Inadequately tightened spark pl ugs can

cause overheating and damage the
engine. Tightening the spark plugs too
hard can damage the threads in the
cylinder head.

8011-05

Measure the electrode gap

7. Connect the ignition cable.

English-36

MAINTENANCE

Checking the 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 blades are disengaged.

2. The neutral bail must be in the locked
position.

Make daily inspections to ensure that the
safetysystem works by attempting to start the
engine when one of the conditions is not met.

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.

Functional check

Check the function of the safety electrical
system on a regular basis.

1. Engine must stop if blades are engaged
without operator presence levers held
down.

2. Engine must stop if transmission is taken
out of neutral without holding down
operator presence levers.

3. Engine must not start unless blades are
off and transmission is in the neutral
position.

WARNING!
Do not operate the mower if the

interlock safety system allows
operating or starting in any
unsafe condition.

8011-477

Condition for starting

English-37

MAINTENANCE

5

A

Checking the Engine's Co oli ng Air Intake

Check that the engine’s cooling air intake is
free from leaves, grass, and dirt.
If the cooling air intake is clogged, engine
cooling deteriorates, which can l ead to
engine damage.

Checking and Adjusting
the Throttle and Choke Cable

8011-783

Check and clean the cooling air intake

Check that the engine responds to throttle
increases and that a good engine speed is
attained at full throttle.
Ifdoubts arise,contact the Husqvarna service
workshop.
If adjustments are necessary, they can be
made as follows for the cable:

1. Loosen the clamping screw for the
cable’s outer casing.

2. Check that the throttle cable is mounted
inthecorrectholeinthelever.

3. Set the throttle lever at full throttle with
no choke.

4. Align the hole in the speed control lever
with the hole in the base plate by moving
the lever. Insert a 6 mm dia pin (or a
screw) through the two holes.

5. Pull up the outer housing of the throttle
cable until the inner wire has almost no
slack and tighten the clamping screw.

6. Remove the 6 mm pin.

7. Make sure that the carburetor choke
valve is closed completely when the
throttle lever is moved to choke position.

8. Check engine idle speed.

8011-48

djusting the throttle cable

English-38

MAINTENANCE

6

Replacing the Air Filter

If the engine seems weak or runs unevenly,
the air filter may be c logged. If run with a dirty
air filter, the spark plugs can become fouled
disrupting operation.
For this reason, it is important to replace the air
filter regularly (see the heading Maintenance
Schedule for the proper service interval).

Cleaning/replacing the air filter is carried out
as follows:

WARNING!
Allow the exhaust system to

cool before performing

service. Risk for burns.

1. Depress the two tabs.

2. Remove the air filter cowling.

3. Remove the paper filter.

8011-48

Remove the air filter cowling

4. Remove the foam pre-filter and clean
using a mild detergent.

Squeeze it dry with a clean cloth

IMPORTANT INFORMATION
Do not used compressed air to clean the

air filter.
Do not wash the paper filter.
Do not oil the paper filter.

5. Refit the air filter as follows:
Check that the paper filter is whole.
Mount the pre-filterunder the paper filter.

Mount the paper filter in the air filter
cowling.

6. Install the filter cowling on the air filter
housing.

8011-487

Remove the paper filter

8011-488

Remove the pre-filter

8009-450

Remove dust

English-39

MAINTENANCE

5

Replacing the Fuel Filter

Replace the line-mounted fuel filter every
100 hours (once per season) or more
regularly if it is clogged.

Replace the filter as follows:

1. Move the hose clamps away from the
filter. Use flat-nosed pliers.

2. Pull the filter loose from the hose ends.

3. Push the new filter into the hose ends.
Position the filter with the ”FLOW” arrow
pointing up toward the fuel pump. If
necessary, a soap solution can be
applied to the filter ends to ease
mounting.

4. Move the hose clamps back toward the
filter.

8011-42

Fuel filter

Checking the Fuel Pump’s Air Filter

Regularly check that the fuel pump’s air filter
is free from dirt.

Remove the screws and open the pump, no
hoses need be removed.

The filter can be cleaned with a brush if
necessary.

Replace the filter on the bracket.

Checking Tire Pressures

All four tires should have a pressure of 15 PSI
(1 bar).

8009-147

The fuel pump’s air filter

English-40

8011-564

Tire pressures

MAINTENANCE

Checking th e Parking Brake

Visually check that no damage is found on
the neutral bail. Perform a test drive and
check that there is sufficent braking action.

To adjust the handbrake, contact the service
workshop if you are uncertain.Set the neutral
bail in the neutral lock position. Tighten the
wing nut. Check if the machine is braked, if
not tighten the wing nut again.

Checking the V-belts

Deck belt

Check every 100 hours of operation. Check
for severe cracking and large nicks.

NOTE: The belt will show some small cracks
in normal operation.

8011-477

The neutral bail in locked position

To replace belt lower the deck to its lowest
position. Remove the plate and belt shields.

Use a ratchet with a 9/16” socket on the
spring idler bolt to relieve the tension on the
belt. Slide the belt off of pulley and fully
remove the belt.

Reverse the proceedure for installation. See
the decal on the top of deck for belt r outing
information.

After installation is complete check the belt
for twists.

8011-775

Slackening the belt tensioner

English-41

MAINTENANCE

Checking the 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 must be replaced.

Check the blade mounts.

IMPORTANT INFORMATION
The replacement or sharpening of blades

should be carried out by an authorized
service workshop.

8011-604

Check the blades

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.

Brake Rod Adjustment

1. Make sure the rod is installed into the
proper hole in the brake arm. The brake
rod should be in the lower hole on the
brake arm.

2. To increase braking, turn the wing nut
down on the rod. Do not turn the wing nut
down too far as this will result in a
constant braking action and will
excessively wear the brake lining and
cause premature failure.

WARNING!
Blades are sharp. Protect your

hands with gloves and/or wrap
blades with a heavy cloth when
handling.

8011-774

Brake rod position

Under side of rear deck

Remove grass and debris.

English-42

MAINTENANCE

Cleaning and Washing

Regular cleaning and washing, especially
under the mower deck, will increase the
machine’s lifespan. Make i t a habit to clean
the machine directly after use, before the dirt
sticks. Do not spray high pressure water
directly on the top of the deck.

Caster Wh eel s

Check every 200 hours. Lift front of unit off of
ground so caster wheels can rotate freely.
Tightencaster bolt (34) then back off 1/2 turn.
Check that wheel rotates freely.If wheel does
not rotate freely, back the caster bolt off in
1/4 turn increments until wheel rotates freely.

8011-639

Cleaning

IMPORTANT INFORMATION
DO NOT add any type of tire liner or foam

fill material to the t ires. Excessive loads
created by foam filled tires will cause
premature failures.

Only use O.E.M. specified tires.

Foam filled tires or solid tires will void the
warranty.

Hardware

Check daily. Inspect the entire machine for
loose or missing hardware.

8011-619

Caster wheels

English-43

MAINTENANCE

Blade replacemen t

WARNING!
Blades are sharp. Protect your

hands with gloves and/or wrap
blades with a heavy cloth when
handling.

• Remove blade bolt by turning
counterclockwise.

IMPORTANT INFORMATION
To ensure proper assembly, center hole in

blade must align with star on cutter housing.

• Install new or re-sharpened blade with
stamped “GRASS side” facing towards
ground/grass (down) or “THIS SIDE UP”
facing deck and cutter housing.

• Install and tighten blade bolt securely.
Tightentorque 90 ft/lb (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.

8011-671

1. Blade

2. Center hole

3. Star

4. Cutter housing

5. Blade bolt (special)

Blade attachment,principal

English-44

Lubrication

Lubrication Schedule

LUBRICATION

25h1/365 50h1/52 200h 300h100h12/12

8011-685

Lubrication schedule

12/12 Every year
1/52 Every week
1/365 Every day

Lubricate with grease gun

Oil change

Filter change

Lubricate with oil can

Level check

General

Remove the ignition key to prevent unintentionalmovements during lubrication. When lubricating with an oil
can, it should be filled with engine oil.

When lubricating with grease, unless otherwise stated, use a high grade molybdenum disulfide grease or
another chassis or ball bearing grease offering good corrosion protection should be used.

For daily use, t he machine shall 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 with spirits, it must be
replaced. Gasoline or other petroleum products must not be used to clean belts.

English-45

LUBRICATION

Lubricating the Cables

If possible, lubricate both ends of the cables and move the controls to end stop positions when lubricating.
Refit the rubber covers on the cables after lubrication. Cables with sheaths will bind if they are not
lubricated regularly. If a cable binds, it can disrupt operation.

If a cable binds, remove the cable and hang it vertically. Lubricate it with thin engine oil until the oil begins
to escape from the bottom.

Hint!: Fill a small plastic bag with oil and tape it so that it seals against the sheath and allow the cable to
hang vertically from the bag overnight. If you do not succeed in lubricating the cable, it must be replaced.

Lubricatingin Accordance with the
Lubrication Schedule

1. Front Wheel Mount

Lubricate with a grease gun, one zerk for
each wheel mount, 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.

2. Front Wheel Bearings

Lubricate with a grease gun, one zerk for
each set of wheel bearings, until the greaseis
forced out.

Use only good quality molybdenum
disulphide grease.

3. Throttle and C hoke Cable, Lever

Bearings

Lubricate the cable end at the carburetor with
the oil can. M ove the controls to the end
points and lubricate again.

The throttle cable is also lubricated at the
control when the control console is removed.

8011-573

Lubricating the front wheels

English-46

8011-485

Throttle and choke cable by the carburetor

LUBRICATION

4. Changing the Oil Filter

1. Drain the engine oil in accordance with
the description in Engine Oil/Change
Engine Oil.

2. Disassemble the oil filter. If necessary,
use a filter remover.

3. Wipe new,clean engine oil on the seal of
the new filter.

4. Mount the filter by hand with + 3/4 turn.

5. Run the engine warm, then check t hat
there are no leaks around the oil filter
seal.

6. Check the oil level in the engine, fill
if necessary. The oil filter holds 0.2 qt
(0.2 liters) of oil.

5. Engine oil

8011-785

Changing the oil filter

Changing the Engine Oil

The engine oil should be changed for the first
time after 8 hours of operation. Thereafter,it
should be changed every 100 hours.

WARNING!
Engine oil can be very hot if it is

drained directly after stopping
the engine. Allow the engine to
cool somewhat first.

1. Place the machine on a flat s urface.

2. Place a container under the engine where
thehosefromtheoildrainvalveexits.

3. Remove the dipstick and open the drain
valve.

4. Allow the oil to run out into the container.

5. Then close the oil drain valve.

6. Replace the oil filter if necessary.

7. Fill with new engine oil, Refer to
“Checking the Oil Level” on page 48.

8. Start the engine.Run it for a few seconds
and re-check the oil level.

IMPORTANT INFORMATION
Used engine oil is a health hazard and

must not be disposed of on the ground or
in nature; it should always be disposed
of at a workshop or appropriate disposal
location.

Avoid skin contact; wash with soap and
water in case of spills.

8011-451

Oil drain valve

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LUBRICATION

Checking the Oil Level

Check the oil level in the engine when the
machine is standing level and the engine is
stopped.

Remove the dipstick, wipe it clean, and then
replace it.

The dipstick should not be screwed into
place.

Take the dipstick out again and read the oil
level.

The oil level should l ie between the markings
on the dipstick.If the level is approaching the
”ADD” mark, fill with oil to the ”FULL” mark on
the dipstick.

Never fill above the ”FULL” mark.

8011-452

Remove the dipstick

The oil is filled through the hole for the
dipstick.

Use engine oil SAE 30 or SAE 10W-30 or,
alternately, 10W/40, class SF–SJ
(over +32 °F / 0 °C).

Over+68°F/+20°CSAE40canbeused.
Use engine oil SAE 5W-20, class SF–SJ

(under +32 °F / 0 °C).
The engine holds 1.6 qt (1.5 liters) of oil

excluding the filter (including filter 1.8 qt,

1.7 liters).

8009-159

The dipstick markings

8009-140

Engine oils

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LUBRICATION

6. Drive wheel idle arm, right and left

Lubricate with a grease gun, one zerk for
each arm, 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.

7. Coupling

Lubricate with a grease gun, one zerk for
each coupling, until the grease is forced out.

Use only good quality molybdenum
disulphide grease.

8011-495

Lubricating drive wheel idle arm

Grease from well-known brand names
(petrochemical companies, etc.) usually
maintains a good quality.

8. Mow er deck lever

Lubricate with a grease gun, one zerk for
each lever, 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.

8011-494

Lubricating coupling

8011-715

Lubricating deck lever

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LUBRICATION

9. Rear wheel

Lubricate with a grease gun, one zerk for
each rear wheel, 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.

IMPORTANT INFORMATION
Be spartan and remove excess lubricant so

that is does not come into contact w ith
belts.

10. Brake Arms

Lubricate with a grease gun, one zerk for
each brake arm, 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.

IMPORTANT INFORMATION
Be frugal and remove excess lubricant so

that is does not come into contact with the
brake band.

8011-716

Lubricating rear wheel

8011-493

Lubricating brake arms

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TROUBLE SHOOTING GUIDE

Trouble Shooting Guide

Problem Cause

The engine will not start. • The control for engaging the mower deck is

in engaged position.

• The motion controls are not locked in the
neutral position.

• Spark plug wires off.

• Contamination in the carburetor or fuel line.

• The fuel fuel shut-off valve is closed.

• Clogged fuel filter or fuel line.

• Fuel tank empty.

The engine runs unevenly. • Faulty carburetor.

• Thechoke control is pulled out with a warm engine.

• Defective valves.

• Defective piston, cylinder, piston ring, or
cylinder head seal.

• The cylinder head bolts are loose.

• Clogged fuel filter or jet.

• Clogged ventilation valve on the fuel cap.

• Fuel tank near empty.

• Defective spark plugs.

• The spark plugs are loose.

• Defective ignition cable.

• Defective spark plug electrode.

• Defective spark plug connection.

• Rich fuel mixture or fuel-air mixture.

• Wrong fuel type.

• Water in the fuel.

• Clogged air filter.

The engine seems weak. • Clogged air filter.

• Defective spark plugs.

• Carburetor incorrectly adjusted. Worn engine.

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TROUBLE SHOOTING GUIDE

The 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.

• Defective spark plugs.

The machine moves slowly, unevenly, • Drive belt for the gear slack or

has come off.

Mower deck not engaging. • Drive belt for the mower deck has come loose.

• The control for engaging the mower deck is
faulty.

Uneven mowing results. • Different air pressure in the tires on the left and

right sides.

• Bent blades.

• Spacers for height adjustment faulty placed.

• The bl ades are blunt.

• Driving speed too high.

• The grass is too long.

• Grass collected under the mower deck.

The machine vibrates. • The bl ades are loose.

• The bl ades are incorrectly balanced.

• The engine is loose.

The machine moves when in neutral postion. • The motion control linkage out of adjustment.

The machine pulls left or right. • The tire pressure uneven.

• The motion control linkage incorrectly adjusted.

• Soft terrian.

• Sloope to steep.

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• The tracking not adjusted.

• The brakes faulty adjusted.

STORAGE

Storage

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 a sticky residue that can foul the
carburetor and disrupt engine function.

Fuel stabilizers are an acceptable option as
regards sticky residues 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 you have
added stabilizer.

WARNING!
Never store an engine with fuel

in the tank indoors or in poorly
ventilated spaces where fuel
vapor can come in contact wi th
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 careless
use can cause serious personal
injury and property damage.
Drain the fuel into an approved
container outdoors and far
away from open flame. Never
use gasoline for cleaning. Use
a degreaser and w arm water
instead.

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
undersideof the mower deck in order to avoid
corrosion.

2. Inspect the machine for worn or damaged
partsand 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 even
the carburetor is drained of fuel or the
stabilizer has reached the carburetor.

5. Remove the spark plugs and pour about a
tablespoon of engine oil into each cylinder.
Turn over the engine so that the oil is evenly
distributed and then refit the spark plugs.

6. Lubricate all grease zerks, joints, and axles.

7. Store t he 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 your
machine performs i ts best the following season.

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Wiring diagrams

WIRING DIAGRAMS

English-54

8011-684

TECHNICAL DATA

Technical data

WG3613E W G 4815E

Engine

Manufacturer Kawasaki Kawasaki
Type FH381V FH430V
Power 13hp/9.5kW 15hp/11kW
Spark plugs / gap RCJ8Y/ .030” / 0.75 mm RCJ8Y/ .030” / 0.75 mm
Oil capacity excl filter 1.6 qt / 1.5 liters 1.6 qt / 1.5 liters
Oil capacity incl filter 1.8 qt / 1.7 litres 1.8 qt / 1.7 litres
Engine oil

(See viscocity digram)

Fuel Min 87 octaneunleaded

Fuel tank capacity 5.3 gallon / 20 liters 5.3 gallon / 20 liters

Transmission

Transmission Peerless 5 speed, 700 series, 9 spline
Speed forward 2.0-6.0 mph / 3.2-9.6

Speed reverse Assisted only Assisted only
Front caster tires, Smooth

tread
Rear tires, Turf pneumatic 13x6.5-6 13x6.5-6
Tire pressure front and rear 15 PSI / 103 kPa / 1 bar 15 PSI / 103 kPa / 1 bar

SAE 10W30, 10W40
SAE 30, SAE 40
API SF-SJ

(Maxmethanol5%, max
ethanol 10%, Max
MTBE 15%)

km/h

9x3.50-4, 4 ply 9x3.50-4, 4 ply

SAE 10W30, 10W40
SAE 30, SAE 40
API SF-SJ

Min 87 octane unleaded
(Max methanol 5%, max
ethanol 10%, Max MTBE
15%)

2.0-6.0 mph / 3.2-9.6 km/
h

Equipment

Cutting width 36” / 91 cm 48” / 122 cm
Cutting height 1.5” - 5” / 38 - 127 mm 1.5” - 5” / 38 - 127 mm

Productivity

Productivity

1.8 acres/h / 7290 m

2

/h 2.4 acres/h / 9720 m2/h

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TECHNICAL DATA

WG3613E W G 4815E

Overall dimensions

Weight 445 lbs / 202 kg 470 lbs / 213 kg
Base maschine lenght 66” / 168 cm 66” / 168 cm
Base machine width 37” / 94 cm 49” / 125 cm
Base machine height 42” / 106 cm 42” / 106 cm
Overall width, Chute up 37” / 94 cm 49” / 125 cm
Overall width, Chute down 47” / 119 cm 59” / 150 cm

Torque Specifications

Engine crankshaft bolt 50 ft/lb (67 Nm)
Deck pulley bolts 45 ft/lb (61 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)
When this product is worn out and no longer used, it should be returned to the dealer or other party for

recycling.

In order 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 uni t without consent from the

manufacturer. Modifications to the unit may cause unsafe operation or damage the unit.

English-56

CONFORMITY CERTIFICATES

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, (Californian 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 valuable documents.

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Service Journal

Delivery service has been carried
o

N
C

SERVICE JOURNAL

Action

Delivery Service

1. Mount the caster wheels.

2. Adjustthe tire pressure of all wheels to 1 bar (15 PSI).

3. Check t hat the right amount of oil is in the engine.

4. Adjust t he position of the steering controls.

5. Fill with fuel and open the fuel tap.

6. Start the engine.

7. Check t hat there is drive to bot h wheels.

8. Check the mower deck adjustment.

9. Check:
The safety switch for the blade engagement lever.
The safety switch for the neutral bail.
The safety switches for the O P-levers.
Parking brake functionality.
Driving forward.

Date, mtr reading, stamp, sign

Driving backward.
Engaging the blades.

10. Check t he idle speed.

11. 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 BioClip.

12. Fill in the sales papers, etc.

After t he First 8 Hours

1. Change engine oil.

ut.

o remaining notes.
ertified:

English-58

SERVICE JOURNAL

Action Date, mtr reading, stamp, sign

25-Hour Service

1. Check the fuel pump’s air filter.

2. Check the tire pressures.

3. Check/clean the engine’s cooling air intake.

4. Clean t he air cleaner’s pre-filter (foam).

5. Check the cutting deck.

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SERVICE JOURNAL

Action Date, mtr reading, stamp, sign

50-Hour Service

1. Perform the 25-hour service.

2. Clean/replace the air cleaner’s filter cartridge (paper filter)
(shorter intervals for dusty operating conditions).

3. Lubricate the front wheel bearings.

4. Lubricate the throttle/choke cable.

5. Check/adjust the parking brake.

English-60

SERVICE JOURNAL

Action Date, mtr reading, stamp, sign

100-Hour Service

1. Perform the 25-hour service.

2. Perform the 50-hour service.

3. Change engine oil.

4. Check whether the engine oil filter needs changing
(every 200 hours).

5. Clean/replace the spark plugs.

6. Replace the fuel filter.

7. Clean the cooling fins on the engine and transmission.

8. Check V-belts, pulleys etc.

9. Check tighten caster wheel axle bolts (every 200 hours).

10. Clean and check the need t o change the air filter’s
paper cartridge (every 200 hours).

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SERVICE JOURNAL

Action Date, mtr reading, stamp, sign

300-Hour Service

1. Inspect the machine. Come to agreement with the customer
as to which additional work is to be carried out.

2. Perform the 25-hour service.

3. Perform the 50-hour service.

4. Perform the 100-hour service.

5. Clean the combustion chamber and grind the valve seats.

6. Check the engine valve clearance.

7. Replace the air cleaner’s pre-filter (foam).

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SERVICE JOURNAL

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-filter (foam) (300 hours).

3. Replace the air filter’s paper cartridge (200 hours).

4. Change the engine oil (100 hours).

5. Replace the engine oil filter (200 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 filter (100 hours).

10. Clean the cooling fins (100 hours).

11. Check the play in the engine valves (300 hours).

12. Perform the 300-hour service at an authorized service workshop.

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106457R01

08/11/05