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.
OPERATOR’S MANUAL 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 ...............................
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.
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.
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.
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.
SYMBOLS AND DECALS Shut off engine and Read Operator´s remove spark plug wire before Manual. performing any maintenance or repair work. Moving sharp blades under cover can sever fingers. English-6 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.
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.
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.
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.
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.
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.
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.
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.
CONTROLS Controls This operator’s manual describes the Husqvarna Pro Push Mower. The mower is fitted with a Kawasaki engine.
CONTROLS Engine Speed CAUTION: The engine speed was set at the factory for optimum performance. Speed is not adjustable Federal regulations require an engine control to be installed on this lawn mower in order to minimize the risk of blade contact injury. DO NOT under any circumstances attempt to defeat the function of the operator control. The blade turns when the engine is running.
CONTROLS . WARNING! Gasoline is highly flammable. Observe caution and fill the tank outdoors (see the safety rules). IMPORTANT INFORMATION 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.
CONTROLS Blade Brake Control (BBC) Models: W21SBK, W53SBEK, W21SBKC The Blade Brake Control (BBC) engages the blade drive. The Operator Presence Control (OPC) must be engaged and the engine running to engage the BBC. 1 3 Illustration shows ground speed bail engaged to operate in transport mode. Release ground speed bail to prevent movement. 2 Operator Presence Control (OPC) 8019-037 1. OPC 2. BBC 3. Ground speed bail To engage BBC, press the control forward as shown in illustration.
CONTROLS Cutting height 2 The cutting deck height is obtained by raising the wheels for low cut and lowering wheels for high cut, adjust cutting height to suit your requirements. Medium position is best for most lawns. To change your cutting height, squeeze adjuster lever toward wheel. Move wheel up or down to suit your requirements. Be sure all wheels are in the same setting. NOTE: Adjuster is properly positioned when plate tab inserts into hole in lever.
CONTROLS Shut Off Engine 2 Models: W21SBK, W53SBEK, W21SBKC To stop engine, release OPC bail to stop blades. Pull back on throttle control to stop engine 1 Stop Engine 8019-047 1. OPC bail 2. Throttle control 2 Models: W21SK, W53SEK, W21SKC Pull throttle control back to slow speed. Release OPC bail to stop engine. 1 Stop Engine 8019-020 1. OPC bail 2. Throttle control 2 Model: W21K, W21KC Pull throttle control back to slow speed. Release OPC bail to stop engine. 1 8019-048 Stop Engine 1.
CONTROLS Mulching Kits are available separately, containing blade and mulch plug. To Convert Mower Your lawn mower was shipped as a rear discharge mower. To convert to bagging or side discharge: REAR BAGGING • Lift rear door of the lawn mower and place the grass catcher frame hooks onto the door pivot pins. • To convert to mulching or discharging operation, remove grass catcher and close rear door. Rear Bagging 8019-049 SIDE DISCHARGING • Discharge flap must be closed.
CONTROLS English-20
OPERATION Before Starting Engine CAUTION: ADD OIL DO NOT overfill engine with oil, or it will smoke on startup. Your lawn mower is shipped without oil in the engine. For type and grade of oil to use see “ENGINE” in the Maintenance section of this manual or the engine manual. 1. Be sure lawnmower is level. IMPORTANT INFORMATION 2. Remove oil dipstick from oil fill spout. Check oil level before each use. Add oil if needed. Fill to full line on dipstick. 3. Engine holds 0.90 qt.(0.85L) of oil.
OPERATION TO START ENGINE NOTE: Due to protective coatings on the engine, a small amount of smoke may be present during the initial use of the product and should be considered normal. 2 3 To start a cold engine, push the throttle control lever to the choke position. 1 Models: W21SBK & W53SBEK, W21SBKC Pull starter cord briskly. It is not necessary to engage OPC control. Do not engage ground speed control bail. When engine starts, move the throttle control to fast position.
OPERATION Transmission Selector BBC Self propelled Models Only Models: W21SBK, W53SBEK, W21SBKC Mowing Prepare the area before mowing. Look for obstacles, remove foreign objects and clear the work area of pets and bystanders. Check the equipment for fuel, oil, loose fasteners etc. Make sure the equipment is in top shape. Correct any defects before using the mower. Select the appropriate speed with the transmission lever. • Position 1 on the transmission selector is the slowest speed.
OPERATION Set throttle control to high speed. Engage Operator Presence Control (OPC). 8019-020 Set Throttle to High Speed Engage Blade Brake Control (BBC). 8019-021 Engage OPC then BBC Engage Ground Speed Bail to begin mowing. TIP: To extend clutch life do not engage BBC and start blade while in tall grass. Start the blade in short cut grass or over a hard level surface. Allow the blade to come up to speed (1-2 seconds) before mowing grass.
OPERATION When finished mowing, release OPC bail to stop blade rotation. 1 2 Release Ground Speed Bail to stop wheel rotation. 8019-023 Release OPC bail 1. OPC bail 2. Ground speed bail Pull throttle control all the way rearward to stop engine. 1 2 8019-024 1. Ground speed bail 2.
OPERATION Self Propelled Models Only Models: W21SK, W53SEK, W21SKC Mowing Prepare the area before mowing. Look for obstacles, remove foreign objects and clear the work area of pets and bystanders. Check the equipment for fuel, oil, loose fasteners etc. Make sure the equipment is in top shape. Correct any defects before using the mower. Select the appropriate speed with the transmission lever. • Position 1 on the transmission selector is the slowest speed. • Position 2 is for moderate speed.
OPERATION Set throttle control to high speed. Set throttle to high speed 8019-028 Engage Ground Speed Bail to begin mowing. Engage Ground Speed Bail 8019-029 Release Ground Speed Control to stop. When finished mowing release OPC bail to stop blade rotation and stop engine.
OPERATION Push Models Only Model: W21K, W21KC Prepare the area before mowing. Look for obstacles, remove foreign objects and clear the work area of pets and bystanders. Check the equipment for fuel, oil, loose fasteners etc. Make sure the equipment is in top shape. Correct any defects before using the mower. Set choke control to “ON” position. Choke “ON” 8019-031 1 Engage Operator Presence Control (OPC). Start engine by pulling briskly on starter rope. 2 Start engine 8019-032 1. OPC bail 2.
OPERATION Mowing Tips Under certain conditions, such as very tall grass, it may be necessary to raise the height of cut to reduce pushing effort and to keep from overloading the engine and leaving clumps of grass clippings. It may also be necessary to reduce ground speed and/or run the lawn mower over the area a second time. • For extremely heavy cutting, reduce the width of cut by overlapping previously cut path and mow slowly.
OPERATION Mulching Mowing Tips • The special mulching blade will recut the grass clippings many times and reduce them in size so that as they fall onto the lawn they will disperse into the grass and not be noticed. Also, the mulched grass will biodegrade quickly to provide nutrients for the lawn. ALWAYS mulch with your highest engine (blade) speed as this will provide the best recutting action of the blades. • Avoid cutting your lawn when it is wet.
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 is recommended to maintain your machine in the best possible condition and to ensure safe operation. Read Safety Instructions section “Maintenance”.
MAINTENANCE General Recommendations The warranty on this lawn mower does not cover items that have been subjected to operator abuse or negligence. To receive full value from the warranty, operator must maintain mower as instructed in this manual. Some adjustments will need to be made periodically to properly maintain your unit. At least once a season, check to see if you should make any of the adjustments described in this Maintenance section.
MAINTENANCE using a spark plug wrench so that the washer is compressed. A used spark plug should be turned 1/8 of a turn from the seated position. A new spark plug should be turned 1/4 a turn from the seated position. Replace the ignition cable. Checking the Engine's Cooling 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 lead to engine damage.
MAINTENANCE Checking and Adjusting the Throttle Cable and Choke Cable Check that the engine responds to throttle increases and that a good engine speed is attained at full throttle. If doubts arise, contact the service workshop. If adjustments are necessary, they can be made as follows: 1. Position the throttle/choke control lever to full throttle (not the “Choke”) position. 2. Loosen cable clamp and slide cable rearward to the internal stop on the carburetor linkage (until strong resistance is felt).
MAINTENANCE Replacing Air Filter If the engine seems weak or runs unevenly, the air filter may be clogged. If run with a dirty air filter, the spark plugs can become fouled, disturbing operation. 1 For this reason, it is important to replace the air filter regularly (see the heading Maintenance Schedule for the proper service interval). To clean/replace the air filter: 2 3 WARNING! Allow the exhaust system to cool before performing service. Risk for burns.
MAINTENANCE 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.
MAINTENANCE Checking the V-belts Check every 100 hours of operation. Check for severe cracking and large nicks. NOTE: The belt will show some small cracks in normal operation. The belts are not adjustable. Replace belts if they begin to slip from wear. Checking the Blade In order to attain the best mowing effect, it is important that the blade is well sharpened and not damaged. Always use protective gloves when handling the blade. A bent or cracked blade or blade with large nicks should be replaced.
MAINTENANCE Blade replacement: WARNING! The blade is sharp. Protect your hands with gloves and / or wrap the blade with a heavy cloth when handling. 3 2 • 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 resharpened 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.
MAINTENANCE Grass Catcher • The grass catcher may be hosed with water, but must be dry when used. • Check your grass catcher often for damage or deterioration. Through normal use it will wear. If catcher needs replacing, replace only with approved replacement catcher shown in the Repair Parts section of this manual. Give the mower model number when ordering. WARNING! Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with plug.
MAINTENANCE Adjusting the Lawn Mower WARNING! Before performing any service or adjustment: 1. Release control bar and stop engine. 2. Make sure the blade and all moving parts have completely stopped. 3. Disconnect spark plug wire from spark plug and place where it cannot come in contact with plug Adjusting Cutting Height See “TO ADJUST CUTTING HEIGHT” In the Operation section of this manual.
MAINTENANCE Engine Adjustment Engine Speed Your engine speed has been factory set. Do not attempt to increase engine speed or it may result in personal injury. If you believe that the engine is running too fast or too slow, take your lawn mower to an authorized service center for repair and adjustment. Carburetor Your carburetor is not adjustable. If your engine does not operate properly due to suspected carburetor problems, take your lawn mower to an authorized service center for repair and/or adjustment.
MAINTENANCE English-41
LUBRICATION Lubrication Keep unit well lubricated (See “LUBRICATION CHART”). IMPORTANT: DO NOT OIL OR GREASE PLASTIC WHEEL BEARINGS. VISCOUS LUBRICANTS WILL ATTRACT DUST AND DIRT THAT WILL SHORTEN THE LIFE OF THE SELF-LUBRICATING BEARINGS. IF YOU FEEL THEY MUST BE LUBRICATED, USE ONLY A DRY, POWDERED GRAPHITE TYPE LUBRICANT SPARINGLY.
LUBRICATION Change the oil after every 25 hours of operation or at least once a year if the lawn mower is not used for 25 hours in one year. WARNING! Check the crankcase oil level before starting the engine and after each five (5) hours of continuous use. Tighten oil plug securely each time you check the oil level. Engine oil can be very hot if it is drained directly after stopping the engine. Allow the engine to cool first.
LUBRICATION 6. Changing the Oil Filter 1. Drain the engine oil in accordance with the work description under the heading Engine Oil/Change Engine Oil. 2. Remove the oil filter. If necessary, use a filter remover. 3. Wipe new, clean engine oil onto the seal for the new filter. 4. Mount the filter by hand with + 3/4 turn. 5. Run the engine warm, then check that 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.
TROUBLE SHOOTING GUIDE Trouble Shooting Guide Problem Cause The engine will not start. • Dirty air filter. • Out of fuel. • Stale fuel. • Water in fuel. • Spark plug wire is disconnected. • Bad spark plug. • Loose blade or broken blade adapter. • Control bar in released position. • Control bar defective. • Fuel valve lever (if equipped) in OFF position. • Rear of lawn mower housing or cutting blade Loss of Power dragging in heavy grass.
TROUBLE SHOOTING GUIDE Grass catcher not filling (if so equipped) Hard to push • Cutting height too low. • Lift on blade worn off. • Catcher not venting air. • Grass is too high or wheel height is too low. • Rear of lawn mower housing or cutting blade dragging in heavy grass. Loss of drive or slowing of drive speed English-45 • Grass catcher too full. • Handle height position not right for you. • Belt wear. • Belt off of pulley. • Drive cable worn or broken.
112280 R2 03/06/07
