Operator's Manual WG4815E/968999120 WG3613E/968999117 WG3613BF/968999365 WG3613EC/968999756 Please read the operator’s manual carefully and make sure you understand the instructions before using the machine.
©2008 HTC. All rights reserved. Beatrice, NE. Printed in U.S.A.
Contents INTRODUCTION................................................................ 5 Congratulations........................................................... 5 General........................................................................ 5 Driving and Transport on Public Roads....................... 5 Operating..................................................................... 5 Good Service............................................................... 6 Symbols and Decals.........................
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 Operating 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.
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. IMPORTANT INFORMATION Xxxx xxxxxx xxxxx xxxx xxxxxxxxx xxxxxx xxxxxxxxx. xx xxxxxxxx xxxx xxxxxx.
symbols and decals Read Operator’s Manual Shut off engine and remove key before performing any maintenance or repair work Whole body Severing of fingers exposure to and toes thrown objects Keep a safe distance from the machine Use on slopes no greater than 10° No passengers Do not open or remove safety shields while engine is running Careful backing up, watch for other people Careful going forward, watch for other people Moving sharp blades under cover 8 - Husqvarna
SAFETY WARNING! 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. This symbol means that important safety instructions need to be emphasized. It concerns your safety. These instructions are for your safety. Read them carefully.
SAFETY • • • • • • • • Do not operate the machine while under the influence of alcohol or drugs. 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.
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 that you have first aid equipment close at hand when using the machine. Never use the machine when barefoot.
SAFETY • • • • 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 try to stabilize the machine by putting your foot on the ground. 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 driver’s floor plate or any 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 • • • • • • • • • • 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. Never make adjustments with the engine running.
CONTROLS This operator’s manual describes the Husqvarna WalkBehind Mower. The machine is fitted with a Kawasaki four-stroke overhead valve 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 2 4 5 6 1 1. 2. 3. 4. 5.
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. 8011-476 Recoil starter grip Ignition Switch The ignition key switch is placed on the control panel.
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 Neutral Bail The neutral bail keeps the unit from moving while idling. The bail will lock the drive levers in neutral position and must be activated when starting the engine. Parking Brake The parking brake on gear drive machines is applied when neutral bail is in lock position. 8011-477 Neutral bail Blade Engagement Lever The blade engagement lever is on the left support by the control panel. In order to engage the blades, push the lever forward.
CONTROLS Fuel Tank The machine has one fuel tank. The tank volume is 5.3 gallons / 20 liters. The engine should run on a minimum of 87-octane unleaded gasoline (no oil mix). Also see Technical Data concerning methanol and ethanol fuels. When operating in temperatures below 32° F. (0° C.), use fresh, clean winter grade gasoline to help insure good cold weather starting. WARNING! Gasoline is highly flammable. Observe caution and fill the tank outdoors (see the safety instruction).
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 position. WARNING! Be thoroughly familiar with control operation and function before using the mower.
operation Starting the Engine WARNING! Do not run the engine indoors, in enclosed or poorly ventilated spaces. Engine exhaust fumes contain poisonous carbon monoxide. Move blade engagement lever to the OFF position, so the interlock will allow engine to start. 8011-474 Blade engagement lever Check gear shift lever to be sure it is in the neutral position.
OPERATION Open fuel shut-off valve. 8011-438 Fuel shut off valve - open Turn ignition key to ON position. 8011-438 Ignition key Set throttle control and engage the choke (if needed). Do not use choke when the engine is warm.
operation IMPORTANT INFORMATION Do not let the 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. If the engine won’t start in three pulls, open the choke and try again. Warm engine momentarily, then disengage the choke until engine runs smoothly, approximately half throttle. 8011-476 Recoil starter grip WARNING! Be sure all persons are clear of area before engaging the blades.
operation Gearbox The gear drive machines have a 5-speed gearbox. The gear selector is placed under the control panel. Only shift gear when the machine is standing still and on level ground. Running 1. Depress one operator presence lever and shift transmission to the desired gear. 2. Unlock the motion control levers by pushing the neutral bail down, out of the neutral slots. Slowly release both levers at the same time to begin forward motion.
operation Reverse Depress one operator presence lever and shift transmission to the reverse gear. Grip motion control levers before shifting gear. WARNING! Do not drive up or down hills with slopes greater than 10 degrees. Do not drive across slopes. 8011-482 Gear shift lever Operating on hills To operate on slopes is a dangerous mowing job. Read the Safety Instructions section “Driving on Slopes”. • The slowest speed possible should be used before starting up or down hills.
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. Drive so clippings are discharged onto the area that has been cut.
operation Stopping Emergency stop Release both hands from the operate presence lever handles. When both operator presence levers return to their outer position, the engine will quit and the mower will stop. or Pull both drive levers firmly against handle grips and hold them securely in place. Use thumbs to lift the neutral bail up into the neutral slot. Stop engine by pulling throttle control back and then shut off the key switch.
operation Remove the ignition key. IMPORTANT INFORMATION Close fuel valve at the end of each mowing session. 8011-438 Ignition key Shut OFF the fuel valve. 8011-437 Fuel shut off valve - closed (OFF) Manual Transport To move the machine with the engine turned off, make sure the gear shift lever is in the neutral position and the motion control levers are not in the locked position. The locked position is used when the machine is parked.
operation Cutting Height Adjustment The cutting height can be adjusted by three methods: • Moving spacers between the upper side and the lower side of the caster swivel according to “Cutting Height Table”. For instruction, see below. • Moving spacers between the upper side and the lower side of the blades according to “Cutting Height Table”. For removing and installing blades, refer to “Blade replacement”. • Rear axle height adjustment according to the following instruction. 1.
operation Cutting Height Table Axle Position Spacer Below Caster Arm Blade Spacers Under Cutter Housing Cutting Height A 0 4 1½" (38mm) 3 1¾" (44mm) 2 2" (51mm) 1 0 1 B 2 3 C 3 4 D 4 5 2¼" (57mm) 2½" (64mm) 4 1¾" (44mm) 3 2" (51mm) 2 2¼" (57mm) 1 2½" (64mm) 0 2¾" (70mm) 4 2½" (64mm) 3 2¾" (70mm) 2 3" (76mm) 1 3¼" (83mm) 0 3½" (89mm) 4 3" (76mm) 3 3¼" (83mm) 2 3½" (89mm) 1 3¾" (95mm) 0 4" (102mm) 4 3¼" (83mm) 3 3½" (89mm) 2 3¾" (95mm) 1 4" (102mm)
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. For recommended spark plugs, see Technical Data. 1. Remove the ignition cable boot and clean around the spark plug. 2. Remove the spark plug with a spark plug socket wrench. 3. 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. 4.
MAINTENANCE Safety System The machine is equipped with a safety system that prevents starting or driving under the following conditions. The engine can only be started when: 1. The blades are disengaged. 2. The neutral bail must be in the locked position. Make daily inspections to ensure that the safety system works by attempting to start the engine when one of the conditions is not met.
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. 8011-783 Check and clean the cooling air intake Throttle 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 Husqvarna 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 Replacing the Fuel Filter Replace the line-mounted fuel filter every 100 hours (once per season) or more regularly if it is clogged. To replace the filter: 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 Parking Brake Visually check that no damage is found on the neutral bail. Perform a test drive and check that there is sufficient braking action. To adjust the handbrake, contact the service workshop if you are uncertain. Set the neutral bail in the neutral lock position. Tighten the wing nut. Check if the machine is braked, if not tighten the wing nut again. 8011-477 Neutral bail in the neutral lock position V-belts Deck belt Check every 100 hours of operation.
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 Brake Rod Adjustment The brake rod should be in the lower hole on the brake arm. Make sure the rod is properly installed. To increase braking, turn the wing nut down on the rod. Do not turn the wing nut down too far as this will result in a constant braking action and will excessively wear the brake lining and cause premature failure. 8011-774 Brake rod position Caster Wheels Check every 200 hours. Lift front of unit off of ground so caster wheels can rotate freely.
LUBRICATION 12/12 1/52 1/365 25h 50h 100h 200h 300h 8011-685 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 *Change transaxles (transmission) filters. 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 Lubricating the 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 Engine Oil 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. • 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 (0.1 liters) of oil.
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. 8011-734 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.
LUBRICATION 6. Drive Wheel Idle Arm Lubricate with a grease gun, one zerk for each arm, until the grease is forced out. Use only good quality molybdenum disulphide grease. Grease from well known brand names (petrochemical companies, etc.) usually maintains a good quality. 8011-495 Lubricating the drive wheel idler arm 7. Coupling Lubricate with a grease gun, one zerk for each coupling, until the grease is forced out. Use only good quality molybdenum disulphide grease.
LUBRICATION 9. Rear Wheel Lubricate with a grease gun, one zerk for each rear wheel, until the grease is forced out. Use only good quality molybdenum disulphide grease. Grease from well-known brand names (petrochemical companies, etc.) usually maintains a good quality. 8011-716 Lubricating the rear wheel 10. Brake Arms Lubricate with a grease gun, one zerk for each brake arm, until the grease is forced out. Use only good quality molybdenum disulphide grease.
TROUBLESHOOTING Problem The engine will not start. The engine runs rough. The engine seems weak. The machine vibrates. 48 - Husqvarna Cause • Mower deck control is engaged. • Steering controls are not locked in the neutral position. • Spark plug wire are off. • Contamination in the carburetor or fuel line. • Fuel shutoff valve is closed. • Clogged fuel filter or fuel line. • Empty fuel tank. • Ignition system faulty. • Faulty carburetor.
TROUBLESHOOTING Problem 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. The machine moves slowly, unevenly. • Drive belt for the transmission 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.
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 8011-684 Husqvarna-51
TECHNICAL DATA Engine WG3613E WG3613BF WG3613EC WG4815E Manufacturer Kawasaki Kawasaki Type FH381V FH430V Power 13 hp* / 9.5 kW 15 hp* / 11 kW Spark plugs / gap RCJ8Y .030" / 0.75 mm RCJ8Y .030" / 0.75 mm Oil capacity excluding filter 1.6 qt / 1.5 liter 1.6 qt / 1.5 liter Oil capacity including filter 1.8 qt / 1.7 liter 1.8 qt / 1.
TECHNICAL DATA WG3613E WG3613BF WG3613EC WG4815E Overall Dimensions 445 lbs / 202 kg 470 lbs / 213 kg Weight 66" / 168 cm 66" / 168 cm Base Machine Length 37" / 94 cm 49" / 125 cm Base Machine Height 42" / 106 cm 42" / 106 cm Overall Width, Chute Up 37" / 94 cm 49" / 125 cm Overall Width, Chute Down 47" / 119 cm 59" / 150 cm Torque Specifications • Engine crankshaft bolt 50 ft/lb (67 Nm) • Deck pulley bolts 45 ft/lb (61 Nm) • Blade bolt 45-55 ft/lb (60-75 Nm) • Standard ¼" fasteners 9 f
TECHNICAL DATA Accessories Collection system Torque Specifications • Engine crankshaft bolt 50 ft/lb (67 Nm) • Deck pulley bolts 45 ft/lb (61 Nm) • Lug nuts 75 ft/lb (100 Nm) • Blade bolt 45-55 ft/lb (60-75 Nm) • Standard ¼" fasteners 9 ft/lb (12 Nm) 5 • Standard /16" fasteners 18 ft/lb (25 Nm) • Standard 3/8" fasteners 33 ft/lb (44 Nm) 7 • Standard /16" fasteners 52 ft/lb (70 Nm) • Standard ½" fasteners 80 ft/lb (110 Nm) When this product is worn out and no longer used, it should be returned to the resel
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 steering controls. 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 Date, mtr reading, stamp, sign 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.
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 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 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.
SERVICE JOURNAL Action 60 - Husqvarna Date, mtr reading, stamp, sign
SERVICE JOURNAL Action Date, mtr reading, stamp, sign Husqvarna-61
SERVICE JOURNAL Action 62 - Husqvarna Date, mtr reading, stamp, sign
WARRANTY STATEMENT SECTION 1: LIMITED WARRANTY Husqvarna Forest & Garden Company (“Husqvarna”) warrants Husqvarna product to the original purchaser to be free from defects in material and workmanship from the date of purchase for the “Warranty Period” of the product as set forth below: Lifetime Warranty (Parts and Labor): All tiller tines and trimmer shafts against breakage. Proof of purchase required.
P/N 539 106457 R02 03/03/08
