Husqvarna W21K, W21SK, W21SBK, W53SBEK, W53SEK User Manual

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Operator's Manual
968999283 / W21K, 968999284 / W21SK,
968999286 / W21SBK, 968999287 / W53SBEK
968999289 / W53SEK, 968999638 / W21KC
968999639 / W21SKC, 968999640 / W21SBKC
Please read the operator’s manual carefully and make sure you
understand the instructions before using the machine.
English
21" PUSH MOWER
Introduction ............................................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
Operating on Slopes .............................9
Children ..............................................10
Maintenance .......................................10
Transport ............................................12
Customer responsibilities ...................13
Controls ...............................................13
Engine Speed .....................................14
Fuel Shut Off Valve ............................14
Refueling 14 ............................................
Choke Control (All Models) ................15
Throttle Control (All Models) ...............15
Blade Brake Control (BBC) ...............16
Cutting height .....................................17
Ground Drive Bail ...............................17
To Convert Mower ..............................19
To Empty Grass Catcher ....................19
Before Starting Engine .......................20
Transmission Selector ........................22
Self Propelled Models Only ................25
Push Models Only ..............................27
Mowing Tips .......................................28
Mulching Tips .....................................29
Maintenance ........................................ 30
Maintenance Schedule ...................... 31
Before Each Use ............................... 31
Ignition System .................................. 31
Engine's Cooling Air Intake ................ 32
Throttle Cable and Choke Cable ....... 33
Replacing Air Filter ............................ 34
Replacing the Fuel Filter .................... 35
Checking Tire .................................... 35
Drive Wheels ..................................... 35
Checking the V-belts ......................... 36
Checking the Blade ........................... 36
Blade replacement: ............................ 37
Gear Case ......................................... 37
Grass Catcher ................................... 38
Muffler ................................................ 38
Cleaning ............................................ 38
Adjusting the Lawn Mower ................ 39
Engine Adjustment ............................ 40
Cleaning and Washing ...................... 40
Hardware ........................................... 40
Lubrication .......................................... 41
Mower Lubrication Chart ................... 41
Engine Lubrication ............................. 41
Trouble Shooting Guide .................... 44
Storage ................................................ 46
Winter Storage ................................... 46
Service ............................................... 46
Technical Data .................................... 47
Conformity Certificates ...................... 54
USA requirements ............................. 54
EU declaration of conformity ............. 54
Service Journal ................................... 55
Delivery Service ................................. 55
After the First 5-8 Hours .................... 56
25-Hour Service ................................. 57
50-Hour Service ................................. 58
100-Hour Service ............................... 59
300-Hour Service ............................... 60
At Least Once Each Year .................. 61

INTRODUCTION

WARNING!
Failure to follow cautious operating practices can result in serious injury to the operator or other persons. The owner must understand these instructions, and must allow only trained persons who understand these instructions to operate the mower. Each person operating the mower must be of sound mind and body and must not be under the influence of any mind altering substance.
WARNING!
Engine exhaust, some of its constituents, and certain vehicle components contain or emit chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
WARNING!
Battery posts, terminals and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.
INTRODUCTION
Introduction
Congratulations
Thank you for purchasing a Husqvarna Pro Push Mower. This machine is built for high performance and rapid mowing.
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 the 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 delivered 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.
Continuous dedication to improve our products requires 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.
Towing
Do not tow this machine, it may cause damage to the drive system.
Operating
This machine is constructed only for mowing grass on lawns and other free and even ground without obstacles such as stones, tree stumps, etc. 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 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 who 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.
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3
INTRODUCTION
Good Service
Husqvarna’s products are sold all over the world and only in specialized retail stores with complete service. This ensures that you as a customer receive only the best support and service. Before the product is delivered, the machine has, for example, been inspected and adjusted by your retailer, see the certificate in the Service Journal in this operator’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 affixed to the chassis. 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 stamped on one of the valve covers.
The plate states:
The engine’s model.
The engine’s type.
Code
Please state these when ordering spare parts.
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SYMBOLS AND DECALS
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! 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!
Use protective glasses
CE conformity marking. Only for European market
Use protective gloves
Power Take Off
Fuel
Noise emissions to the surroundings in accordance with the European Union’s directive. The machine’s emission is stated in the chapter TECHNICAL DATA and on the decals.
Only machines for European market.
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SYMBOLS AND DECALS
Read Operator´s Manual.
Moving sharp blades under cover can sever fingers.
Shut off engine and remove spark plug wire before performing any maintenance or repair work.
Whole body exposure to thrown objects.
Severing of fingers and toes.
Do not open or remove safety shields while engine is running.
Keep a safe distance from the machine.
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SAFETY INSTRUCTIONS

Safety Instructions
These instructions are for your safety. Read them carefully. 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.
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 it. 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 maintain a 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.
Beware of the discharge chute 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.
Do not operate machine without the entire grass catcher, discharge guard, rear guard, or other safety protective devices in place and working.
Remember that the operator is responsible for dangers or accidents.
8019-007
Read the operator’s manual before starting the machine
8019-008
Clear the area of objects before mowing
Shut down the blades when not mowing.
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SAFETY INSTRUCTIONS
Do not put hands or feet near or under rotating parts. Keep clear of the discharge opening at all times
Do not pull mower backwards unless absolutely necessary. Always look down and behind you before and while moving backwards.
Slow down before turning.
Never operate mower in wet grass. Always be sure of your footing and walk, never run.
Be careful when mowing 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 in the ground. Pay attention to other possible risks.
Never use the machine if you are tired, if you have consumed alcohol, or if you are taking other drugs or medication that can affect your vision, judgment, or coordination.
Beware of traffic when working near or crossing a road.
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.
8019-009
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.
Never leave the machine unsupervised with the engine running. Always stop the engine before leaving the machine.
Never allow children or other persons not trained in the use of the machine to use or service it. Local laws may regulate the age of the user.
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 mowing.
8011-670a
Personal protective equipment
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SAFETY INSTRUCTIONS
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.
Stop the blade when crossing gravel drives, walks, or roads.
Shut the engine off and wait until the blade comes to a complete stop before removing grass catcher.
Disengage the self-propelled mechanism or drive clutch on mowers so equipped before starting the engine.
If the equipment should start to vibrate abnormally, stop the engine and check immediately for the cause. Vibration is generally a warning of trouble.
See manufacturer’s instructions for proper operation and installation of accessories. Use only accessories approved by the manufacturer.
Operating on Slopes
Operating on slopes is one of the operations where the risk is greatest that the operator will lose control or the machine will tip over, which can result in serious injury or death. All slopes require extra caution. 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 running over furrows, holes, and bumps. On uneven terrain, the machine can tip more easily. Long grass can hide obstacles.
Mow across the face of slopes: never up and down. Exercise extreme caution when changing direction on slopes.
Mow evenly and slowly.
If the machine stops while going uphill, back down slowly.
8019-002
Mow side to side, not up and down.
Do not
Do not make sudden changes in speed or direction.
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SAFETY INSTRUCTIONS
Do not drive the mower on terrain that slopes more than 10°.
Do not mow near verges, ditches, or banks. The operator could lose footing or balance.
Do not mow wet grass. Reduced footing could cause slipping
Do not turn on slopes unless necessary, and then, turn slowly and gradually downhill, if possible.
Avoid starting or stopping on a slope. If the tires begin to slip, shut down the blades if so equipped or shut off the engine and move slowly down the slope.
Children
Serious accidents may 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 where you last saw them.
Keep children away from the mowing area and under close supervision by another adult.
Keep an eye out and shut off the machine if children enter the work area.
Before and during a reversing maneuver, look backward and downward for children.
Never allow children to operate the machine.
Be particularly cautious near corners, bushes, trees, or other objects that block your view.
Maintenance
WARNING!
The engine must not be started when any protective plate for the mower deck’s drive belt is removed.
Stop the engine.
8019-003
Never allow children to operate the machine
Never attempt to make wheel height adjustments while the engine is running.
Only store fuel in containers approved for the purpose.
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SAFETY INSTRUCTIONS
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.
Never fill containers inside a vehicle or on a truck or trailer bed with a plastic liner. Always place containers on the ground away from your vehicle before filling.
Remove gas-powered equipment from the truck or trailer and refuel it on the ground. If this is not possible, then refuel such equipment with a portable container, rather than from a gasoline dispenser nozzle.
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.
Never remove the fuel tank cap and never fill the fuel tank while the engine is running.
8019-004
Never fill the fuel tank indoors
Use protective glasses for maintenance work.
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.
Grass catcher components are subject to wear, damage, and deterioration, which could expose moving parts or allow objects to be thrown. Frequently check components and replace with manufacture’s recommended parts, when necessary.
WARNING!
The engine and the exhaust system, become hot during operation. Risk for burns if touched.
8019-005
Never run unit in an enclosed space.
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SAFETY INSTRUCTIONS
Never make adjustments with the engine running.
Ensure that nuts and bolts, especially the fastening bolts for the blade attachments, are properly tightened, torqued and that the equipment is in good condition.
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.
Never use the mower 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.
8019-006
Clean the unit regularly
The machine is tested and approved only with the equipment originally provided or recommended by the manufacturer.
The blades are sharp and can cause cuts and gashes. Wrap the blades or use protective gloves when handling them.
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.
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 mower. Fasten the machine with approved fastening devices, such as straps, chains, or ropes, when transporting.
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SAFETY INSTRUCTIONS
Check and abide by local traffic regulations before transporting.
Do not tow this machine, it may cause damage to the drive system.
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 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.
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CONTROLS

Controls
This operator’s manual describes the Husqvarna Pro Push Mower. The mower is fitted with a Kawasaki engine.
Control Locations
8
8
Locations of the controls
Pro Push Mower
8
7
8019-040
9
11
1, 5, 6
2
3
8
10
4
8019-052
Page Page
1 Engine speed 14 7 BBC control 16
2 Fuel shut off valve 14 8 Cutting height 16
3 Fuel tank cap 14 9 Ground Speed Bail 17
4 Operator presence control (OPC) 14 10 & 11 Engine shut off 18
5 Choke control 15
6 Throttle control 15
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