Husqvarna WGP3616, 966638502, 966638501 Manual

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Operator Manual

WGP3616 / 966638501

WGP4818 / 966638502

Please read the operator’s manual carefully and make sure you understand the instructions before using the machine.

To implement improvements, specifications and designs can be altered without prior notification. Note that no legal demands can be placed based on the information contained in these instructions. Use only original parts for repairs. The use of other parts voids the warranty.

Do not modify or install non-standard equipment to the unit without consent from the manufacturer. Modifications to the unit may cause unsafe operations or damage the unit.

When this product is worn out and no longer used, it should be returned to the reseller or other party for recycling.

Contents

INTRODUCTION................................................................	5
General Information.....................................................	5
Driving and Transport on Public Roads......................	5
Operating....................................................................	5
Good Service..............................................................	6
Symbols and Decals..................................................	7
Safety..............................................................................	8
General Operation.......................................................	8
Personal Safety Equipment.......................................	10
Slope Operation........................................................	10
Safe Handling of Gasoline........................................	12
General Maintenance................................................	13
Transport...................................................................	14
Customer Responsibilities.........................................	14
Spark Arrester...........................................................	14
Controls.....................................................................	15
Control Locations......................................................	15
Recoil Starter Grip.....................................................	16
Ignition Switch...........................................................	16
Motion control levers.................................................	16
Operator Presence Levers........................................	17
Thumb Latch.............................................................	17
Blade Engagement Lever...............................	17
Throttle......................................................................	18
Gear Shift Lever........................................................	18
Refueling...................................................................	19
Fuel Shut-off Valve...........................................	19
Fuel Tank.........................................................	19
Accessories...............................................................	19
Operation.....................................................................	20
Before Starting..........................................................	20
Starting the Engine....................................................	21
Gearbox....................................................................	23
Running.....................................................................	24
Operating On Hills.....................................................	24
Stopping....................................................................	25
Emergency Stop..............................................	25
Normal Operating Stop...................................	25
Braking............................................................	25
Stopping the Engine........................................	25

Manual Transport......................................................	26
Cutting Height Adjustment........................................	26
Cutting Height Table..................................................	27
Mowing Tips..............................................................	28
Maintenance...............................................................	29
Maintenance Schedule.............................................	29
V-belts.......................................................................	30
Deck belt.........................................................	30
Belt Routing.....................................................	31
Safety System............................................................	32
Function Check...............................................	32
Cutting Blades...........................................................	32
Blade replacement..........................................	32
Parking Brake............................................................	33
Brake Rod Adjustment..............................................	33
Tire Pressures............................................................	34
Caster Wheels...........................................................	34
Cleaning....................................................................	34
Hardware...................................................................	34
LUBRICATION.................................................................	35
Front Wheel Mount....................................................	36
Front Wheel Bearings................................................	36
Rear Wheel................................................................	36
Brake Arms................................................................	36
Mower Deck Lever....................................................	37
Couplings..................................................................	37
Drive Wheel Idle Arms...............................................	37
TROUBLESHOOTING......................................................	38
STORAGE........................................................................	40
Winter Storage...........................................................	40
Service......................................................................	40
schematics..................................................................	41
TECHNICAL DATA...........................................................	42
Torque Specifications................................................	43
CONFORMITY CERTIFICATES........................................	44
SERVICE JOURNAL........................................................	45

WARNING!

Failure to follow cautious operating practices can result in serious injury to the operator or other persons. The owner must understand these instructions, and must allow only trained persons who understand these instructions to operate the mower.

Each person operating the mower must be of sound mind and body and must not be under the influence of any mind altering substance.

WARNING!

Engine exhaust, some of its constituents, and certain vehicle components contain or emit chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

INTRODUCTION

Congratulations

Thank you for purchasing a Husqvarna Walk-Behind mower. This machine is built for superior efficiency to rapidly mow primarily large areas. A control panel easily accessible to the operator and a transmission regulated by steering controls both contribute to the machine’s performance.

This manual is a valuable document. Read the contents carefully before using or servicing the machine. Following the instructions (use, service, maintenance, etc.) is important for the safety of the operator and others. It can also considerably increase the life span of the machine and increase its resale value.

If you sell your machine, be sure to give the operator’s manual to the new owner.

The final chapter of this operator’s manual provides a Service Journal. Ensure that service and repair work are documented. A well-kept service journal reduces service costs for the maintenance and affects the machine’s resale value. Take the operator’s manual along when the machine is taken to your dealer for service.

General Information

In this operator’s manual, left and right, backward and forward are used in relation to the machine’s normal driving direction.

Continuous dedication to improve our products require that specifications and design are subject to change without notice.

Driving and Transport on Public Roads

Check applicable road traffic regulations before transporting on public roads. If the machine is transported, you must always use approved fastening equipment and ensure that the machine is well anchored. DO NOT operate this machine on public roadways.

Operating

This machine is constructed only for mowing grass on lawns and even ground without obstacles such as stones, tree stumps, etc. The machine can also be used for other tasks when equipped with special accessories provided by the manufacturer. Operating instructions for the accessories are provided with delivery. All other types of uses are incorrect. The manufacturer’s directions concerning operation, maintenance, and repairs must be carefully followed.

Lawn mowers and all power equipment, can be potentially dangerous if used improperly. Safety requires good judgement, careful use in accordance with these instructions and common sense.

The machine must only be operated, maintained, and repaired by persons familiar with the machine’s special characteristics and who are also

knowledgeable about the safety instructions. Use only approved repair parts to maintain this machine.

Accident prevention regulations, other general safety regulations, occupational safety rules, and traffic regulations must be followed without fail.

Unauthorized modifications to the design of the machine may absolve the manufacturer from liability for any resulting personal injury or property damage.

INTRODUCTION

Good Service

Husqvarna’s products are sold through out the world and only in specialized retail stores with complete service. This ensures that you as a customer receive only the best support and service. Before the product is delivered, the machine has, for example, been inspected and adjusted by your retailer. See the certificate in the Service Journal in this operator’s manual.

When you need spare parts or support in service questions, warranty issues, etc., please consult the following professional:


This manual belongs to the machine with the	Engine	Transmission
manufacturing number:

Manufacturing Number
The machine’s manufacturing number can be found
on the printed plate affixed to the left in the engine
compartment. Stated on the plate, from the top are:
• The machine’s type designation (I.D.).
• The manufacturer’s type number (Model).
• The machine’s serial number (Serial no.)

Please have the type designation and serial number available when ordering spare parts.

The engine’s manufacturing number is stamped on a barcode decal. The decal is placed on the left side of the crankcase.

The plate states:

•The engine’s serial number (E/NO).

•The engine’s type designation (Code)

Please have these available when ordering spare parts.

symbols and decals

These symbols are found on the machine and in the operator’s manual.

Study them carefully so that you know what they mean.

WARNING!

Xxxx xxxxxx xxxxx xxxx xxxxxxxxx xxxxxx xxxxxxxxx. xx xxxxxxxx xxxx xxxxxx.

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

IMPORTANT INFORMATION

Xxxx xxxxxx xxxxx xxxx xxxxxxxxx xxxxxx xxxxxxxxx. xx xxxxxxxx xxxx xxxxxx.

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.

Reverse	Neutral	fast	Slow	fuel

Warning!	CE conformity	Warning! Rotating blades,	Do not touch parts
Warning!	marking. Only for	Warning! Rotating blades,	Do not touch parts
	marking. Only for	keep away from the
	European market	keep away from the
	European market	discharge deck
		discharge deck

Moving sharp	Use protective glasses	Use protective gloves
blades under cover

SAFETY

WARNING!

This cutting machine is capable of amputating hands and feet and

throwing objects. Failure to observe the following safety instructions could result in serious injury or death.

These instructions are for your safety. Read them carefully.

General Operation

•Read, understand, and follow all instructions on the machine and in the manual before starting.

•Do not put hands or feet near rotating parts or under the machine. Keep clear of the discharge opening at all times.

•Clear the area of objects such as rocks, toys, wire, etc., which could be picked up and thrown by the blades.

•Be sure the area is clear of bystanders before operating. Stop machine if anyone enters the area.

•Always look down and behind during reverse maneuvers. Look for both large and small obstacles.

•Never direct discharged material toward anyone. Avoid discharging material against a wall or obstruction. Material may ricochet back toward the operator. Stop the blades when crossing gravel surfaces.

•Do not operate machine without the entire grass catcher, discharge guard, or other safety devices in place and working

•Slow down before turning.

•Never leave a running machine unattended.

•Disengage blades when not mowing. Shut off engine and wait for all parts to come to a complete stop before cleaning the machine, removing the grass catcher, or unclogging the discharge chute.

•Operate machine only in daylight or good artificial light.

•Do not operate the machine while under the influence of alcohol or drugs.

WARNING!

This symbol means that important safety instructions need to be emphasized. It concerns your safety.

8011-630

Read the operator’s manual before starting the machine

8011-631

Clear the area of objects before mowing

SAFETY

•Watch for traffic when operating near or crossing roadways.

•Only allow responsible adults, who are familiar with the instructions, to operate the machine.

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

•Use extra care when loading or unloading the machine into a trailer or truck.

•Always wear eye protection when operating machine.

•Anyone who operates this machine must first read and understand this Operation Manual. Local laws may regulate the age of the user.

•Keep machine free of grass, leaves or other debris buildup which can touch hot exhaust or engine parts and burn. Do not allow the mower deck to plow leaves or other debris which can cause buildup to occur. Clean any oil or fuel spillage before operating or storing the machine. Allow machine to cool before storage.

8011-632

Never take passengers

WARNING!

Engine exhaust and certain vehicle components contain or emit chemicals considered to cause cancer, birth defects, or other reproductive system damage. The engine exhaust contains carbon monoxide, which is a odorless, colorless, poisonous gas. Do not use the machine in enclosed spaces.

SAFETY

Personal Safety Equipment

WARNING!

When using the machine, approved personal protective equipment (shown in illustrations) shall be used. Personal protective equipment cannot eliminate the risk of injury but it will reduce the degree of injury if an accident does happen. Ask your retailer for help in choosing the right equipment.

•Make sure first aid equipment is close at hand when using the machine.

•Never use the machine when barefoot. Always wear protective shoes or boots, preferably with steel toe caps.

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

•Always wear gloves when handling the blades.

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

•Use ear protectors to avoid damage to hearing.

Slope Operation

Slopes are a major factor related to loss of control or machine tip-over accidents, which can result in severe injury or death. Operation on all slopes requires extra caution.

•Mow across slopes (10 degrees maximum), not up and down.

•Watch for holes, ruts, bumps, rocks, or other hidden objects. Uneven terrain could overturn the machine. Tall grass can hide obstacles.

•Choose a low ground speed so that you will not have to stop while on the slope.

•Do not mow on wet grass. Tires may lose traction.

•Avoid starting, stopping, or turning on a slope. If the tires lose traction, disengage the blades and proceed slowly straight down the slope.

•Keep all movement on the slopes slow and gradual. Do not make sudden changes in speed or direction, which could cause the machine to roll over.

•Use extra care while operating machine with grass catchers or other attachments; they can affect the stability of the machine.

•Do not use on steep slopes.

•Do not mow near drop-offs, ditches, or embankments. The machine could suddenly roll over if a wheel is over the edge or if the edge caves in.

8011-670

Personal protective equipment

8062-043

Mow side to side, not up and down

WARNING!

Never use the machine on terrain that slopes more than 10 degrees.

Mow slopes side to side, not up and down. Avoid sudden directional changes.

SAFETY

Children

Tragic accidents can occur if the operator is not alert to the presence of children. Children are often attracted to the machine and the mowing activity. Never assume that children will remain where you last saw them.

•Keep children out of the mowing area and in the watchful care of a responsible adult other than the operator.

•Be alert and turn machine off if a child enters the area.

•Before and while backing, look behind and down for small children.

•Never carry children, even with the blades shut off. They may fall off and be seriously injured or interfere with safe machine operation.

•Never allow children to operate the machine.

•Use extra care when approaching blind corners, shrubs, trees, or other objects that may block your view of a child.

8011-633

Keep children away from the work area

8011-636

Never allow children to operate the machine

SAFETY

Safe Handling of Gasoline

To avoid personal injury or property damage, use extreme care in handling gasoline. Gasoline is extremely flammable and the vapors are explosive.

•Extinguish all cigarettes, cigars, pipes, and other sources of ignition.

•Use only approved gasoline container.

•Never remove gas cap or add fuel with the engine running. Allow engine to cool before refueling.

•Never fuel the machine indoors.

•Never store the machine or fuel container where there is an open flame, spark, or pilot light such as on a water heater or other appliance.

•Before you begin refueling, minimize the risk of static electricity by touching a metal surface.

•Never fill containers inside a vehicle or on a truck or trailer bed with plastic liner. Always place containers on the ground away from the vehicle when filling.

•Remove gas-powered equipment from the truck or trailer and refuel it on the ground. If this is not possible, refuel such equipment with a portable container, rather than from a gasoline dispenser nozzle.

•Keep the nozzle in contact with the rim of the fuel tank or container opening at all times until fueling is complete. Do not use a nozzle lock-open device.

•If fuel is spilled on clothing, change clothing immediately.

•Never overfill fuel tank. Replace gas cap and tighten securely.

•Do not start the engine near spilled fuel.

•Never use gasoline as a cleaning agent.

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

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

8011-637

Never fill the fuel tank indoors

WARNING!

The engine and the exhaust system become very hot during operation. There is risk for burns if touched.

Allow engine and exhaust system to cool before refueling.

8011-777

Do not smoke when using the machine

SAFETY

General Maintenance

•Never operate machine in a closed area.

•Keep all nuts and bolts tight to be sure the equipment is in safe working condition.

•Never tamper with safety devices. Check their proper operation regularly.

•Keep machine free of grass, leaves, or other debris buildup. Clean oil or fuel spillage and remove any fuel-soaked debris. Allow machine to cool before storing.

•If you strike a foreign object, stop and inspect the machine. Repair, if necessary, before restarting.

•Never make any adjustments or repairs with the engine running.

•Check grass catcher components and the discharge guard frequently and replace with manufacturer’s recommended parts, when necessary.

•Mower blades are sharp. Wrap the blade or wear gloves, and use extra caution when servicing them.

•Check brake operation frequently. Adjust and service as required.

•Maintain or replace safety and instruction labels, as necessary.

•Do not modify safety equipment. Check regularly to be sure it works properly. The machine must not be used with defective or unmounted protective plates, protective cowlings, safety switches, or other protective devices.

•Do not change the settings of governors and avoid running the engine with overly high engine speeds. If you run the engine too fast, you risk damaging the machine components.

•Use protective goggles.

•Ensure that the fuel filler cap is mounted tightly and no flammable substances are stored in an open vessel.

•Never use the machine indoors or in spaces lacking proper ventilation. The exhaust fumes contain carbon monoxide, an odorless, poisonous, and lethal gas.

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

•The machine is tested and approved only with the equipment originally provided or recommended by the manufacturer. Only use approved repair parts for the machine.

8011-638

Never operate the machine in an enclosed space

WARNING!

Use protective glasses for maintenance work.

WARNING!

The engine must not be started when the protective plate for the mower deck’s drive belt is removed.

SAFETY
• The mulch blades should only be used in familiar
areas when higher quality mowing is desired.
• Reduce the risk of fire by removing grass, leaves,
and other debris that may have accumulated on
the machine. Allow the machine to cool before
putting it in storage.
• Regularly clean deck and underside of deck,
avoid spraying engine and electrical components
with water.
Transport
• The machine is heavy and can cause serious
crushing injuries. Be extra cautious when it is
loaded on or unloaded from a vehicle or trailer.
• Use an approved trailer to transport the machine.
Activate the parking brake, turn off the fuel supply,	8011-639

and fasten the machine with approved fastening	Clean the machine regularly
devices, such as bands, chains, or straps, when
transporting.

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

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.

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

•Follow the instructions under Maintenance and Storage sections of this manual.

Spark Arrester

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

WARNING!

This mower is equipped with an internal combustion engine and should not be used on or near any unimproved forested, bush-covered or grassy 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.

CONTROLS

This machine is fitted with a Kawasaki four-stroke V-Twin engine.

Transmission from the engine is made via two V-belts,

one for each wheel. Using the left and right steering controls, the speed of the rear wheels is regulated for steering the machine.

Control Locations

3 8

8019-060

1.	Recoil Starter Grip	6.	Gear Shift Lever
2.	Ignition Switch	7.	Thumb latch
3.	Motion Control Lever	8.	Blade Engagement Lever
4.	Operator Presence Lever	9.	Fuel Cap/Tank
5.	Throttle/Choke Control	10.	Fuel Shut Off Valve

Husqvarna WGP3616, 966638502, 966638501 Manual

CONTROLS

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.

Ignition Switch

The ignition switch is placed on the control panel. To prevent unauthorized use, remove the key.

WARNING!

The machine can turn very rapidly if one steering control is moved much further than the other.

8011-498

Recoil starter grip

8019-065

Ignition switch

Motion Control Levers

The machine’s speed is regulated with 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 with the thumb latches.

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

To turn left while moving forward, pull the left control upward toward the handle (neutral position). The rotation of the left wheel is reduced and the machine turns.

To stop forward travel. pull both levers up to the handle.

8019-062

Motion control lever - left hand

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