WH4817E
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Operator's manual
WH4817E/968999238
WH3615E/968999237
Please read the operator’s manual carefully and make sure you
understand the instructions before using the machine.
English
OPERATOR’S MANUAL
MOWER
WH3615E WH4817E
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. Ground Speed Lever......................................15
3. Motion control levers......................................16
4. Ignition Switch................................................16
5. Operator Presence Lever...............................17
6. Throttle Control ..............................................17
7. Brake/Bypass Lever.......................................18
8. Blade Engagement Switch.............................18
9. Neutral Bail ....................................................19
10. Choke Control ..............................................19
11. Hour Meter ...................................................20
12. Tracking Knob..............................................20
13. Refueling......................................................21
14. Fuel Shut-off Valve ......................................22
Fuse ...................................................................22
Accessories........................................................22
Operation .............................................................. 23
Before Starting ...................................................23
Starting the Engine ............................................24
Driving forward...................................................26
Reversing...........................................................27
To operate on hills .............................................27
Mowing Tips ......................................................28
Stopping.............................................................29
Stopping the Engine...........................................30
Cutting height adjustment ..................................31
Moving by hand..................................................33
Maintenance ........................................................ 34
Maintenance Schedule...................................... 34
Ignition System.................................................. 36
Checking the Safety System ............................. 37
Checking the Engine's Cooling Air Intake ......... 37
Checking and Adjusting the Choke Cable......... 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
Adjustment of the handle .................................. 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 ..................................... 50
Storage................................................................. 53
Winter Storage .................................................. 53
Service .............................................................. 53
Wiring diagrams .................................................. 54
Technical Data..................................................... 56
Torque Specifications........................................ 57
Conformity Certificates....................................... 58
USA requirements............................................. 58
Service Journal ................................................... 59
Delivery Service ................................................ 59
After the First 8 Hours ....................................... 59
25-Hour Service ................................................ 60
50-Hour Service ................................................ 61
100-Hour Service .............................................. 62
300-Hour Service .............................................. 63
At Least Once Each Year.................................. 64
English-1
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 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, maintenance, etc.)
can considerably increase the lifespan 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. Ensure 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 left to the
workshop for service.
General
In this Operator’s manual, left and right, backward and forward are used in relation to the machine’snormal
driving direction.
Driving and Transport on Public Roads
Check applicable road traffic regulations before driving and transport on public roads. If the machine i s
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 for 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 manufacturer’s directions concerning
operation, maintenance, and repairs must be carefully followed.
Lawnmowers and all power equipment, can be potentially dangerous if used im properly. 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 t he
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 i s
delivered, the machine has, for example, been inspected and adjusted by your retailer, see the 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 the 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 in the operator’s manual.
Study them carefully so that you know what they mean.
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 f or 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
English-5
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 the 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 the
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 the 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
English-7
SAFETY INSTRUCTIONS
• Shut down the blades when not mowing.
• Be careful when turning around fixed
objects, so that the blades 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, apply 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 the machine
in enclosed spaces.
8011-633
Keep children away from the work area
WARNING!
When using the machine, approved personal protective equipment 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 retailerfor
help in choosing t he 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 the
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 down the
bladesand drive slowly straightdown the
slope.
English-9
SAFETY INSTRUCTIONS
Children
• Serious accidentsmay occur if you fail to
be on guard for children in the vicinity of
the machine.Children are often attracted
to the machine and mowing work. Never
assume that children will stay put 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
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 engine from
startingby 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
in personal injury or fire.
• Only store 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 to 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 until it 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.
• Never smoke or go near open flames or sparks
while using the machine
8011-637
Never fill the fuel tank indoors
WARNING!
The engine, the exhaust
system’s components become
very warm during operation.
Risk for burns if touched.
• Ensurethat nuts and bolts,especially the
fasteningboltsfor the bladeattachments,
are properly tightened and that the
equipment is in good condition.
8011-777
No smoking
English-11
SAFETY INSTRUCTIONS
• 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 wi th 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.
Use protective glasses at
maintenance work.
• 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 familiar areas use mulch
deck.
• Reduce the risk of fire by removing
grass, leaves, and other debris that m ay
haveaccumulated on the machine. Allow
the machine to cool before putting it in
storage.
• Have your mower inspected 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
• 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 t o 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 t his
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 resp onsi bilities
• 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
Controls
This operator’s manual describes the
Husqvarna Walk-Behind Mowers WH3615E
and WH4817E. The machines are fitted with
a Kawasaki four-stroke V-Twin engine, see
Technical Data on page 56.
Transmission from the engine is made via two
IZT gears, one for each wheel.
8011-433
Walk behind mower
Locations of the controls
Control Locations
Page Page
1. Recoil starter grip 15. 8. Blade engagement switch 18.
2. Ground speed lever 15. 9. Neutral bail 19.
3. Motion control lever 16. 10. Choke control 19.
4. Ignition switch 16. 11. Hour meter 20.
5. Operator presence lever 17. 12. Tracking knob 20.
6. Throttle control 17. 13. Fuel cap 21.
7. Brake/By pass lever 18. 14. Fuel shut-off valve 22.
English-14
8011-676
CONTROLS
1. Recoil Starter Grip
IMPORTANT INFORMATION
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. Ground Speed Lever
Located in the center of the console. Controls
the forward speed of the mower. Push the
lever forward if you want to go faster, pull it
back to go slower or pull it all the way back to
the stop postion.
To begin motion, the operator must move the
ground speed lever forward before
disengaging the neutral lock bail.
Ground Speed Lever Stop is the adjustment
screw placed on the front edge of the driver´s
panel. It is used to insure ground speed lever
does not over travel drive levers into reverse.
8011-435
Recoil starter grip
8011-654
Ground Speed Lever
English-15
CONTROLS
3. Motion 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 bail
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.
8011-663
Motion control lever
To reverse, squeeze the control levers
against the handle grip.
4. Ignition Switch
The ignition key switch is placed on the
control panel.
8011-656
Ignition key
English-16
CONTROLS
5. Operator Presence Lever
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.
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 stop
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 locked in drive levers.
8011-661
Operator presence lever
6. Throttle Control
The throttle control regulates the engine
speed and thereby the rate of rotation of the
blades, assuming the control switch for
engaging the mower deck is pulled out, see
Engaging the Mower Deck.
In order to increase or decrease the engine
speed, the control is moved forward or
backward respectively.
Avoid idling the engine for longer periods, as
there is a risk of the spark plugs fouling.
8011-653
Throttle control
English-17
CONTROLS
7. Brake/Bypass Lever
Located at the back of the rear deck. Used to
apply park brake or bypass the IZT gears for
free wheel (neutral) condition.
The functions for the lever is:
1. Drive, used when operating the machine.
2. Parking, parking brake applied.
3. Bypass, used when moving the machine
by hand.
8011-411
Brake/Bypass lever
Parking Brake
The parking brake on IZT machines is applied
when the Brake/Bypass lever is set in
position 2. The parking brake must only be
used to brake a machine which is standing
still. Be careful if you release the parking
brake on sloping ground. The machine is
heavy and can move uncontrolled, especially
if the lever is set to the bypass position (3).
8. Blade Engagement Switch
In order to engage the blades, pull the knob
out. The blades are disengaged when the
knob is depressed.
The switch energizes the clutch for the V-belt
pulley, placed on the crankshaft, to drive the
blades.
8011-643
Brake/Bypass lever positions
English-18
8011-655
Engaging the mower deck
CONTROLS
9. Neutral Bail
Keeps the unit from moving while idling. The
neutral bail will lock the motion control levers
in neutral position and must be activated
when starting the engine.
To engage the neutral bail, pull the Ground
Speed Lever fully back and press up the bail
into position, see illustration.
10. Choke Control
The choke control is used for cold starts to
provide the engine with a richer fuel mixture.
8011-416
Neutral bail
For cold starts the control should be pulled
out.
Push the choke control gradually in when the
engine is started, to get the engine running
smooth.
Do not use the choke when starting a warm
engine.
8011-652
Choke control
English-19
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