Operator´s manual W21 W53 Please read these instructions carefully and make sure you understand them before using the machine.
OPERATOR’S MANUAL 21" PUSH MOWER Contents Contents..............................................................1 Introduction ........................................................3 Congratulations ...............................................3 General ...........................................................3 Driving and Transport on Public Roads ..........3 Towing.............................................................3 Operating ........................................................
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 Read Operator´s Manual. Shut off engine & remove spark plug wire before performing any maintenance or repair work. Moving sharp blades under cover can sever fingers. 6-English Whole body exposure to thrown objects. Severing of fingers & 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. 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.
SAFETY INSTRUCTIONS • Shut down the blades when not mowing. • 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.
SAFETY INSTRUCTIONS • 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.
SAFETY INSTRUCTIONS • 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.
SAFETY INSTRUCTIONS • 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.
SAFETY INSTRUCTIONS • 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.
CONTROLS Controls This operator’s manual describes the Husqvarna Pro Push Mower. The mower is fitted with a Kawasaki engine.
CONTROLS Engine Speed CAUTION: 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. The engine speed was set at the factory for optimum performance.
CONTROLS . WARNING! Gasoline is highly flammable. Observe caution and fill the tank outdoors (see the safety rules). WARNING! Fill to bottom of filler neck. Do not overfill. Wipe off any spilled oil or fuel. Do not store, spill or use gasoline near an open flame. When operating in temperatures below 32˚ F. (0˚ C.), use fresh, clean winter grade gasoline to help insure good cold weather starting.
CONTROLS Blade Brake Control (BBC) Models: W21SBK, W53SBEK 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 8019-037 1. OPC 2. BBC 3. Ground speed bail To engage BBC, press the control forward as shown in illustration.
CONTROLS Cutting height The cutting deck height is obtained by raising the wheels for low cut and lower 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. 2 1 3 8019-038 8019-039 1. Lever backward to lower mower Lever forward to raise mower 2. Lever 3.
CONTROLS Shut Off Engine Models: W21SBK, W53SBEK To stop engine, release OPC bail to stop blades. Pull back on throttle control to stop engine 2 1 Stop Engine 8019-047 1. OPC bail 2. Throttle control Models: W21SK, W53SEK Pull throttle control back to slow speed. Release OPC bail to stop engine. 2 1 8019-020 Stop Engine 1. OPC bail 2. Throttle control Model: W21K Pull throttle control back to slow speed. Release OPC bail to stop engine.
CONTROLS 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 covert to mulching or discharging operation, remove grass catcher and close rear door. SIDE DISCHARGING • Rear door must be closed. • Open mulcher door and install discharge deflector under door. • Mower is now ready for discharging operation.
OPERATION Before Starting Engine ADD OIL CAUTION: 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. 2. Remove oil dipstick from oil fill spout. 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 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: W53SEK, W53SBEK 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 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 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. ALWAY 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 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. 2. 33 Position the throttle/choke control lever at the handle to the “Choke” position. Loosen cable clamp and slide cable forward to the internal stop on the carburetor linkage. That position is the choke position. 3.
MAINTENANCE Replacing Air Filter Kawasaki Engine 1 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, distrupting operation. For this reason, it is important to replace the air filter regularly (see the heading Maintenance Schedule for the proper service interval). 2 3 Cleaning/replacing the air filter is carried out as follows: 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 re-sharpened blade with stamped “GRASS SIDE” facing towards ground/grass (down) or “THIS SIDE UP” facing deck and cutter housing. • Install and tighten blade bolt securely.
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.
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! Engine oil can be very hot if it is drained directly after stopping the engine. Allow the engine to cool somewhat first. 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.
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. 8011-734 Changing the oil filter Check the oil level in the engine, fill if necessary.
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) • Cutting height too low. • Lift on blade worn off. l• Catcher not venting air. Hard to push • 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 • Grass catcher too full. • Handle height position not right for you. • Belt wear. • Belt off of pulley. • Drive cable worn or broken.
STORAGE Storage To ready the machine for storage, follow these steps: Winter Storage 1. Thoroughly clean the machine, especially under the mower deck. Touch up damage to the paint and spray a thin layer of oil on the underside of the mower deck to avoid corrosion. 2. Inspect the machine for worn or damaged parts and tighten any nuts or screws that may have become loose. Fuel stabilizers are an acceptable option as regards to the sticky residues that can occur during storage.. 3.
TECHNICAL DATA Technical Data W21K/968999283 W21SK/968999284 Engine Manufacturer Kawasaki Type FJ180V-A5S21-R Power 6 HP/4.5 kW Lubrication Pressure, with filter Oil capacity excl filter 0.69 qt. (0.65L) Oil capacity incl filter 0.90 qt. (0.85L) Engine oil, Synthetic Engine oil, Mineral, Class API: SF, SE, SH OR SJ Fuel Gasoline Fuel tank capacity 0.53 gal. (2.0L) Spark plugs / gap NGK BPR5ES .030” (.
TECHNICAL DATA Technical Data W21SBK/968999286 W53SBEK/968999287 Engine Manufacturer Type Power Lubrication Kawasaki FJ180V-AS22-R FJ180V-AS63-R 6.0 HP (4.5 kW) Pressurized, with filter Oil capacity excl filter 0.69 qt. (0.65L) Oil capacity incl filter 0.90 qt. (0.85L) Engine oil, Syntetic Engine oil, Mineral, Class Fuel API Class SH OR SJ 10W-30 Gasoline Fuel tank capacity 0.53 gal. (2.0L) Spark plugs / gap NGK BPR5ES .030” (.
TECHNICAL DATA Technical Data W53SEK/968999289 Engine Manufacturer Kawasaki Type FJ180V-AS62-R Power 6.0 HP (4.5 kW) Lubrication Pressurized, with filter Oil capacity excl filter 0.69 qt. (0.65L) Oil capacity incl filter 0.90 qt. (0.85L) Engine oil, Syntetic Engine oil, Mineral, Class API Class SH OR SJ 10W-30 Fuel Gasoline Fuel tank capacity 0.53 gal. (2.0L) Spark plugs / gap NGK BPR5ES .030” (.
TECHNICAL DATA When this product is worn out and no longer used, it shall be returned to the reseller or other party for recycling. In order to implement improvements, specifications and designs can be altered without prior notification. Note that no legal demands can be placed based on the information contained in these instructions. Use only original parts for repairs. The use of other parts voids the warranty.
TECHNICAL DATA TORQUE SPECIFICATIONS HEX HEAD CAP SCREWS The to rque values sho wn sho uld be used as a general guideline when specific to rque values are no t given. U.S. Standard Hardw are Shank Size (Diameter in inches, fine or coarse thread) Grade SAE grade 5 SAE grade 8 Flangelock Screw w/ Flangelock Nut ft./lbs Nm ft./lbs Nm ft.
CONFORMITY CERTIFICATES Conformity Certificates EU declaration of conformity Only applicable to European versions Husqvarna AB, Beatrice NE USA declares under sole responsibility that the machine types stated on page 1 of this manual, from 2005's serial numbers and onwards (the year is clearly stated in plain text on the rating plate with subsequent serial number), complies with the requirements of the COUNCIL'S DIRECTIVES: - of June 22, 1998 "relating to machinery" 98/37/EC, annex IIA.
SERVICE JOURNAL Service Journal Action Date, mtr reading, stamp, sign Delivery Service 1. Check that the right amount of oil is in the engine. 2. Fill with fuel and open the fuel shut off valve ( if so equipped). 3. Start the engine. 4. Check that there is drive to both wheels (if so equipped). 5. Check the mower deck height. 6. Check the idle speed 7. Check the engine high idle speed 8. Inform the customer about: The need and advantages of following the service schedule.
SERVICE JOURNAL After the First 5-8 Hours 1. Change engine oil.
SERVICE JOURNAL Action Date, mtr reading, stamp, sign 25-Hour Service 1. Check the fuel pump’s air filter. 2. Sharpen/Replace mower blades if required. 3. Check spark plug wire. 4. Lubricate according to lubrication chart. 5. Check/clean the engine’s cooling air intake. 6. Clean the air cleaner’s pre-filter (foam).
SERVICE JOURNAL Action 50-Hour Service 1. Perform the 25-hour service. 2. Clean/replace the air cleaner’s filter cartridge (paper filter) (shorter intervals for dusty operating conditions). 3. Change engine oil. 4. Lubricate according to lubrication chart.
SERVICE JOURNAL Action Date, mtr reading, stamp, sign 100-Hour Service 1. Perform the 25-hour service. 2. Perform the 50-hour service. 3. Change the engine oil filter. 4. Clean/replace the spark plugs. 5. Replace the fuel filter. 6. Clean the cooling fins on the engine. 7. Check V-belts. 8. Check tighten wheel axle bolts (every 200 hours). 9. Change the air filter’s paper cartridge.
SERVICE JOURNAL Action 300-Hour Service 1. Inspect the machine. Come to agreement with the customer as to which additional work is to be carried out. 2. Perform the 25-hour service. 3. Perform the 50-hour service. 4. Perform the 100-hour service. 5. Check/adjust the mower deck. 6. Clean the combustion chamber and grind the valve seats. 7. Check the engine valve clearance. 8. Replace the air cleaner’s pre-filter (foam).
SERVICE JOURNAL Action Date, mtr reading, stamp, sign At Least Once Each Year 1. Clean the engine’s cooling air intake (25 hours). 2. Replace the air cleaner’s pre-filter (foam) (300 hours). 3. Replace the air filter’s paper cartridge. 4. Change the engine oil (50 hours). 5. Replace the engine oil filter (100 hours). 6. Check/adjust the cutting height. 7. Clean/Change the spark plugs (100 hours). 8. Change the fuel filter (100 hours). 9. Clean the cooling fins (100 hours). 10.
SERVICE JOURNAL Action 60-Englishh Date, mtr reading, stamp, sign ´®z+RPT¶6{¨ ´®z+RPT¶6{¨
SERVICE JOURNAL Action Date, mtr reading, stamp, sign English-61
115 04 85-26 ´®z+RPT¶6{¨ ´®z+RPT¶6{¨ 2007-02-23
