Operator's Manual WHF4817 / 966947005 WHF3617 / 966947008 Please read the operator’s manual carefully and make sure you understand the instructions before using the machine.
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. 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. ©2009 HTC. All rights reserved. Beatrice, NE.
Contents INTRODUCTION................................................................ 5 General........................................................................ 5 Driving and Transport on Public Roads....................... 5 Operating..................................................................... 5 Good Service............................................................... 6 Symbols and Decals.................................................. 7 General Operation................................
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 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.
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.
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. Moving sharp blades under cover IMPORTANT INFORMATION Xxxx xxxxxx xxxxx xxxx xxxxxxxxx xxxxxx xxxxxxxxx.
SAFETY 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 and wire, which could be picked up and thrown by the blades. Be sure the area is clear of bystanders before operating.
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.
SAFETY • • • • 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.
SAFETY WARNING! The engine must not be started when the protective plate for the mower deck’s drive belt is removed. 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.
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.
SAFETY • • • • 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. 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.
CONTROLS This operator’s manual describes the Husqvarna WalkBehind Mower. The machine is fitted with a Kawasaki four-stroke overhead valve engine. Using the left and right drive levers, the speed of the rear wheels is regulated for steering the machine. Control Locations 13 12 11 10 9 8 7 6 5 4 3 1 2 8062-036 1. 2. 3. 4. 5. 6. 7. 14 - Husqvarna Fuel Cap/Tank Throttle Control Choke Control Ground Speed Control Blade Engagement Control Hour Meter (optional) Ignition Switch 8.
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. Recoil starter grip 8062-006 Ignition Switch The ignition key switch is located on the control panel at the lower right.
CONTROLS Operator Presence Levers Located on the handle, the Operator Presence System levers serve as an additional safety feature. An electrical interlock safety system is activated by depressing either one or both of the Operator Presence Levers at the handle grips. Releasing both Operators Presence Levers while mowing or transporting will break the electrical circuit and cause the engine and mower to stop. The mower will not stop immediately after releasing the OP levers and some travel occurs.
CONTROLS Throttle Control The throttle control regulates the engine speed and thereby the rate of rotation of the blades, assuming the blade engagement control is engaged (pulled up). In order to increase or decrease the engine speed, the control is moved forward or backward respectively. Avoid idling the engine for long periods, as there is a risk of the spark plugs fouling. For best mower performance, USE FULL THROTTLE WHEN MOWING.
CONTROLS Parking Brake The parking brake is located behind the right hand tire and is applied by pressing the pedal downwards. To disengage the parking brake, push down and pivot the pedal to the rear. Parking brake 8062-005 Blade Engagement Control The blade engagement control is on the center control panel. In order to engage the blades, pull the control upwards. The blades are disengaged when the lever is pushed down. WARNING! Gasoline is highly flammable.
CONTROLS Fuel Shut-off Valve The fuel shut off valve is placed on the fuel line below the fuel tank. The valve is on when the turn lever is parallel to the fuel line. The shut off position will have the turn lever running perpendicular to the fuel line. See illustration. 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. Fuel shut off valve - closed (OFF) 8062-007 Fuel Tank The machine has one fuel tank.
operation Before Starting • Read the sections on Safety and Controls before starting the machine. • Perform the daily maintenance before starting (see Maintenance Schedule). • Check that there is sufficient fuel in the fuel tank. The following conditions must be fulfilled before the engine can be started: • The control for engaging the blades must be in disengaged (down) position. • The speed control lever must be in the start position.
operation Starting the Engine Open fuel shut-off valve. Fuel shut off valve - open 8062-007 Turn ignition key to ON position. Ignition key 8062-003 Set throttle control at the lowest position and engage the choke (if needed). Do not use choke when the engine is warm.
operation WARNING! Do not run the engine indoors, in enclosed or poorly ventilated spaces. Engine exhaust fumes contain poisonous carbon monoxide. Confirm that the speed control lever is in the start position. IMPORTANT INFORMATION Do not let the recoil cord snap back by itself. This may damage the cord or the recoil starter assembly. Speed control in the start position 8062-009 Pull the recoil starter grip slowly until you feel compression, then pull briskly.
operation Running Depress one operator presence lever and move the speed control to the desired speed. Pull the blade engagement control upwards. Set the desired rpm with the throttle. The best cutting and bagging is obtained with engine at top rpm. While on level terrain, squeeze both drive levers slightly. Using thumbs, slide each neutral lock out the locked position. Slowly release both drive levers at the same time to begin forward motion.
operation Mowing Tips • • • • • • • • • • • • • • Observe and mark rocks and other fixed objects in order to avoid collisions. Properly level the cutting deck for best mowing performance. The blades should be parallel to the ground or slightly tipped down in the front. Use only sharp blades. Check tire pressure. Different pressure can cause uneven mowing results. Use the left hand side of the deck for trimming. Mow so clippings are discharged onto the area that has been cut.
operation 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, and fasten the machine with approved fastening devices, such as bands, chains, or straps, when transporting. Do not operate this machine on public roadways.
operation Turn the ignition key to the stop position. Remove the ignition key. Ignition key 8062-003 Shut OFF the fuel valve. Fuel shut off valve - closed (OFF) 8062-007 Set the parking brake.
operation Cutting Height Adjustment WARNING! Before performing any service or adjustment checklist • Make sure the blades and all moving parts have completely stopped. • Turn the ignition switch to “OFF” position and remove the key. • Remove spark plug wire. To change the deck cutting height - hook the deck latch onto the latch pin on each side of the frame. Use the height of cut decal to find the corresponding hole for the desired height. Push the retainer pin into the correct hole in the height rod.
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 “Maintenance” in the Safety Instructions section. 1) First change after 5-8 hours.
MAINTENANCE Daily Maintenance Weekly Before After At Maintenance interval least in hours once each year 25 50 100 300 Check/adjust throttle and choke cables Check the condition of belts, belt pulleys Change the engine oil 1) Replace the engine oil filter Clean/replace the spark plugs Replace the fuel filter Replace the air filter (paper filter) 2) Check the caster wheels (every 200 hours) Replace the air cleaner’s pre-filter 2) (foam) Check/adjust the mo
MAINTENANCE Ignition System The engine is equipped with an electronic ignition system. Only the spark plugs require maintenance. 1. For recommended spark plugs, see Technical Data. 2. Remove the ignition cable boot and clean around the spark plug. 3. Remove the spark plug with a spark plug socket wrench. 4. Check the spark plug. Replace the spark plug if fouled, the electrodes are burned or if the insulation is cracked or damaged. Clean the spark plug with a steel brush if it is to be reused. 5.
MAINTENANCE Engine 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. Check and clean the cooling air intake 8062-015 Throttle 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.
MAINTENANCE Air Filter Maintenance 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 and operation is disrupted. It is important to replace the air filter regularly (see the heading Maintenance Schedule for the proper service interval). WARNING! The engine and the exhaust system become very hot during operation. Risk for burns if touched. Allow engine and exhaust system to cool at least two (2) minutes.
MAINTENANCE 1. Remove the wing nuts for the air filter and remove the paper filter. Remove the paper filter 8062-030 1. Tap the paper filter against a fixed surface to remove dust. If the paper filter is still dirty, it must be replaced. 2. To refit - check that the seal on the bottom of the paper filter is whole and not compressed flat. 3. Mount the paper filter in the air filter housing and tighten the wing nuts. 4. Refit the prefilter on the paper filter. 5.
MAINTENANCE Tire Pressures All tires should be at 15 psi / 103 kPa / 1 bar. Tire pressures 8062-026 Deck belt Check every 100 hours of operation. Check for severe cracking and large nicks. NOTE: The belt will show some small cracks in normal operation. Replacing belt Open the belt shield. Use a ratchet with a ½ socket extension on the spring idler arm to relieve the tension on the belt. Slide the belt off the pulley and fully remove the belt. Reverse the procedure for installation.
MAINTENANCE Cutting Blades WARNING! Blades are sharp. Protect your hands with gloves and/or wrap blades with a heavy cloth when handling. To achieve the best mowing effect, the blades must be well sharpened and not damaged. Bent or cracked blades or blades with large nicks should be replaced. Damaged blades should be replaced when hitting obstacles that result in a breakdown. Let the service workshop decide whether the blade can be repaired/ ground or must be replaced. Balance the blades after sharpening.
MAINTENANCE Cleaning Under side of rear deck Remove grass and debris. Washing Regular cleaning and washing, especially under the mower deck, will increase the machine’s lifespan. Make it a habit to clean the machine directly after use, before the dirt sticks. Do not spray high pressure water directly on the top of the deck. Do not spray hot engine or exhaust. WARNING! Escaping hydraulic oil under pressure can have sufficient force to penetrate the skin, causing serious injury.
MAINTENANCE 12/12 1/52 1/365 25h 50h 100h 200h 300h 8062-018 12/12 Every year Lubricate with grease gun 1/52 Every Week Oil change 1/365 Every day Lubricate with oil can Level check Filter change General Remove the ignition key to prevent unintentional movements during lubrication. When lubricating with an oil can, it must be filled with engine oil. When lubricating with grease, unless otherwise stated, use a high grade molybdenum disulphide grease.
LUBRICATION Cables If possible, grease both ends of the cables and move the controls to end stop positions when lubricating. Refit the rubber covers on the cables after lubrication. Cables with sheaths will bind if they are not lubricated regularly. If a cable binds, it can disrupt operation. If a cable binds, remove the cable and hang it vertically. Lubricate it with light engine oil until the oil begins to escape from the bottom.
LUBRICATION 4. Engine Oil Filter • • • • • • • Drain the engine oil in accordance with the work description under the heading Engine Oil/Change Engine Oil. Remove the oil filter. If necessary, use a filter remover. Wipe new, clean engine oil onto the seal for the new filter. Mount the filter by hand with +¾ turn. Add replacement oil. Run the engine warm, then check that there are no leaks around the oil filter seal. Check the oil level in the engine, fill if necessary. The oil filter holds 0.1 qt (0.
LUBRICATION Engine Oil Levels Check the oil level in the engine when the machine is standing level and the engine is stopped. Remove the dipstick, wipe it clean, and then replace it. The dipstick should not be screwed into place. Take the dipstick out again and read the oil level. 8062-015 Remove the dipstick The oil level should lie between the markings on the dipstick. If the level is approaching the “ADD” mark, fill the oil to the “FULL” mark on the dipstick. Never fill to above the “FULL” mark.
TROUBLESHOOTING Problem Engine will not start. Engine runs rough. Engine seems weak. Machine vibrates. Cause • Mower deck control is engaged. • Speed control not in the start position. • Spark plug wire is off. • Contamination in the carburetor or fuel line. • Fuel shutoff valve is closed. • Clogged fuel filter or fuel line. • Empty fuel tank. • Faulty ignition system. • Faulty carburetor. • Choke control is pulled out with a warm engine. • Clogged fuel filter or jet.
TROUBLESHOOTING Problem Engine overheats. Cause • Clogged air intake. • Engine overloaded. • Poor ventilation around engine. • Defective engine speed regulator. • Too little or no oil in the engine. • Fouled spark plugs. Machine moves slowly, unevenly. • Drive belt for the transmission is slack or has come off. Mower deck not engaging. • Drive belt for the mower deck has come loose. • Mower deck control is faulty. • Tire pressures are uneven. • Blades are bent. • Blades are dull.
storage Winter Storage At the end of the mowing season (or if it will not be in use for longer than 30 days), the machine should be readied for storage. Fuel allowed to stand for long periods of time (30 days or more) can leave sticky residues that can plug the carburetor and disrupt engine function. Fuel stabilizers are an acceptable option as regards to the sticky residues that can occur during storage. Add stabilizer to the fuel in the tank or in the storage container.
schematics Lower Harness 14 WHT BlU BlK 14 RED 4.0 BlK 15.0 14 BlK 3.00 1.00 14 BlU 3.0 RED WHI 4.
schematics Upper Harness Husqvarna-45
TECHNICAL DATA WH3617 WH4817 Kawasaki Kawasaki FH541V FH541V 17 hp* / 13 kW 17 hp* / 13 kW RCJ8Y .030" / 0.75 mm RCJ8Y .030" / 0.75 mm Oil capacity excluding filter 1.5 qt / 1.4 liter 1.5 qt / 1.4 liter Oil capacity including filter 1.8 qt / 1.7 liter 1.9 qt / 1.8 liter SAE 10W30, 10W40, 5W20, 5W30, API SF-SJ SAE 10W30, 10W40, 5W20, 5W30, API SF-SJ Min 87 octane unleaded (Max ethanol 10%, Max MTBE 15%) Min 87 octane unleaded (Max ethanol 10%, Max MTBE 15%) 6 gallons / 22.
TECHNICAL DATA Torque Specifications Engine crankshaft bolt Deck pulley bolts Lug nuts Blade bolt 50 ft/lb (67 Nm) 150 ft/lb (203 Nm) 75 ft/lb (100 Nm) 90 ft/lb (122 Nm) Standard ¼" fasteners Standard 5/16" fasteners Standard 3/8" fasteners Standard 7/16" fasteners Standard ½” fasteners 9 ft/lb (12 Nm) 18 ft/lb (25 Nm) 33 ft/lb (44 Nm) 52 ft/lb (70 Nm) 80 ft/lb (110 Nm) HEX HEAD CAP SCREWS The torque values shown should be used as a general guideline when specific torque values are not given. U.S.
CONForMITY CERTIFICATES USA requirements Labels are placed on the engine and/or in the engine compartment stating that the machine will fulfill the requirements. This is also applicable to special requirements for any of the states, (California emission rules etc.). Do not remove any of these labels. Certificates can also be supplied with the machine at delivery or written in the Engine manual. Take care of them as they are valuable documents.
SERVICE JOURNAL Action Date, mtr reading, stamp, sign Delivery Service 1. Mount caster wheels. 2. Adjust tire pressure of all wheels according to Technical Data. 3. Check that the right amount of oil is in the engine. 4. Adjust the position of the drive levers. 5. Fill with fuel and open the fuel shut off valve. 6. Start the engine. 7. Check that there is drive to both wheels. 8. Check the mower deck adjustment. 9. Check: • The safety switch for the blade engagement lever.
SERVICE JOURNAL Action 25-Hour Service 1. Check the fuel pump air filter. 2. Check the tire pressures. 3. Check/clean the engine’s cooling air intake. 4. Clean the air cleaner’s prefilter (foam). 5. Check the cutting deck. 50-Hour Service 1. Perform the 25-hour service. 2. Clean/replace the air cleaner filter cartridge (paper filter) (shorter intervals for dusty operating conditions). 3. Lubricate front wheel bearings. 4. Lubricate throttle/choke cable. 5. Check/adjust the parking brake.
SERVICE JOURNAL Action 100-Hour Service 1. Perform the 25-hour service. 2. Perform the 50-hour service. 3. Change the engine oil. 4. Check whether the engine oil filter needs to be changed (every 200 hours). 5. Clean/replace the spark plugs. 6. Replace the fuel filter. 7. Clean the cooling fins on the engine and transmission. 8. Check V-belts, pulleys, etc. 9. Check tighten caster wheel axle bolts (every 200 hours). 10. Clean and check filter paper cartridge (every 200 hours). 300-Hour Service 1.
SERVICE JOURNAL Action At Least Once Each Year 1. Clean the engine’s cooling air intake (25 hours). 2. Replace the air cleaner’s prefilter (foam) (300 hours). 3. Replace the air filter paper cartridge (200 hours). 4. Change the engine oil (100 hours). 5. Replace the engine oil filter (200 hours). 6. Check/adjust the cutting height. 7. Check/adjust the parking brake (50 hours). 8. Clean/change the spark plugs (100 hours). 9. Change the fuel filter (100 hours). 10. Clean the cooling fins (100 hours). 11.
SERVICE JOURNAL Action Date, mtr reading, stamp, sign Husqvarna-53
P/N 115 142927 R1 08/15/09
