Husqvarna WHF4817 User's Manual
Contents
1. from your Husqvarna dealer 8 The hydraulic system including all hoses and fittings should be checked frequently for wear or leaks Never check for leaks with your hands use a piece of cardboard or wood Hy draulic oil under pressure could be injected into your body and must be surgically removed within a few hours 10 11 SETUP AND ADJUSTMENTS Uncrate mower Lift up on handles until mower is level Using the hardware provided in the literature package insert 3 bolts per side into the frame side where the front frame connects to the rear deck See FIG 1 A pry bar can be used to align the holes 3 HOLES TO INSERT BOLTS INTI WO EDGES TO BE PARALLEL FIGURE 1 Line up the back edge of the front frame with the front edge of the wheel motor mount so they are parallel and tighten the hardware Remove the hood from the frame and install the deck belt Be sure the belt is still wrapped around the clutch pulley under the rear deck See FIG 2 With the hood off mount the muffler on the engine using the provided hardware Reinstall hood Cut the plastic wire ties holding the operator presence levers down Check tire pressure in all four tires rear tires 15 PSI front tires 20 25 PSI Check engine oil with dipstick Add if needed per engine manufactures specifications See engine manual Check hydraulic oil level Should be an 1 0 below the bottom of the fill t2. Hj Husqvarna Operators Manual Models 968999252 WHF4817 968999253 WHF5219 Please read these instructions carefully and make sure you understand them before using the machine MANUAL NO 539110585 REV IR 02 04 04 Thank you for buying a HUSQVARNA Before operating your new mower read understand and follow the important safety instructions and the other instructions contained in this manual Lawnmowers and all power equipment can be potentially dangerous if used improperly SAFETY REQUIRES GOOD JUDGEMENT CAREFUL USE IN ACCORDANCE WITH INSTRUC TIONS AND COMMON SENSE Congratulations on the purchase of your Husqvarna mower This manual has been prepared for the owners and operators of the floating deck walk behind hydro commercial mowers Read understand and follow the safety and operating instructions A 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 sub stance 1 Keep all shields guards and safety devices in place and in proper working condition 2 Stop engine and remove spark plug wires or remove key before adjusting servicing or per forming maintenance TECHNICAL ASSISTANCE If you
3. XX xX X X x Xx x xx KK X X X Notes 1 Change engine oil and filter after first 50 hours and then every 100 hours 2 Change hydraulic oil and filter after the first 250 hours or season and then every 500 hours 3 During dusty or dry conditions cleaning and replacement should be more frequent 4 Refer to engine manual for more information 12 TROUBLE SHOOTING PROBLEM POSSIBLE CAUSES Engine won t start Blade switch engaged Neutral lock bail not locked Fuel valve closed No fuel Spark plug wires off Bad spark plugs Blown fuse Mower will not move Pump bypass valves open or moves slowly or with Pump drive belt loose or off difficulty Hydraulic system failure Air in the hydraulic system Blades won t engage Blade belt off of pulleys Blown fuse Uneven cut Tire pressure uneven Blades bent check tip to tip one blade thickness Air foil of blade worn or bent Blades dull Ground speed too fast Grass accumulation under deck Cut is ragged Mower moves when ie Motion control linkage out of adjustment in neutral position Pump arms loose or out of adjustment 1 Tire pressure uneven 2 Motion control linkage adjustment 3 Soft terrain 4 Slope too steep 5 Tracking not adjusted Mower pulls left or right When a problem occurs do not overlook the simple causes Hj Husqvarna
4. have any questions pertaining to your mower contact your dealer To locate the nearest dealer please call 1 800 HUSKY 62 For technical assistance please write Husqvarna 7349 Statesville Road Charlotte NC 28269 or call 1 800 HUSKY MD A WARNING amp THE ENGINE EXHAUST FROM THIS PRODUCT CONTAINS CHEMICALS KNOWN TO THE STAT OF CALIFORNIA TO CAUSE CANCER BIRTH DEFECTS OR OTHER REPRODUCTIVE HARM Continuous dedication to improve our products require that specifications and design are sub ject to change without notice Table of Contents GROUND SPEED LEVER DRIVE LEVER OPERATOR PRESENCE NS ZS oy AS T 25 KEY SWITC g x SA ee N DEFLECTOR CHUTE l SET z DIN 2004 Husqvarna All right reserved Beatrice NE Printed in U S A 3 N CASTER TIRE SAFETY TRAINING 1 2 3 4 Read this manual carefully and question your dealer if something is not clear Be thoroughly familiar with the controls and proper use of the equipment Never allow children teenagers or people un familiar with these instructions to use the mower Do not mow while people particularly children or pets are nearby PREPARATION 1 The use of personal protective equipment such as but not limited to protection for the eyes ears feet and head is recommended Never operate the mower without proper guards covers safety switches and devices in place and properly functioning Inspect these
5. console The key switch must be turned on blades disengaged and neutral lock bail locked in drive levers be fore starting Fuel shut off valve Located under the tank sup port in the fuel line Pump release valves Located at the back side of the pumps Used to release the system so unit may be moved by hand when not running NOTE Only rotate about a 1 4 to 1 2 of a turn to release system Operator presence levers Located on the handle One or both levers must be pressed against the handle for the mower to remain run ning when the blades are engaged or the ground speed lever is not in the neutral posi tion Choke control Use when starting cold engine do not run choke when engine is warm STARTING AND OPERATION 1 2 3 Making sure the blades are disengaged the neutral lock bail locked and the fuel valve on Adjust choke if needed turn key to on posi tion Start the engine Once the engine is running adjust the throttle Holding down at least one of the operator pres ence levers engage blades and set RPM to maximum NOTE Be sure all persons are clear of area before engaging the blades To prolong spindle bearing and belt life engage and disengage blades at approximately 1 2 throttle Set the ground speed lever to the desired po sition Release the neutral lock bail MAINTENANCE Engine oil level Check daily with engine cold and on a flat surface Remove the dipstick and wipe clean Reinsert
6. ed lever to the fast posi tion Start the mower with the neutral lock bail locked in the drive levers check for tire rota tion Using two 9 16 open end wrenches loosen the jam nut on the bottom of the turn buckle on the motion control linkage Turn the turnbuckle until the tire stops turning Holding down the O P lever release the neutral lock bail from the drive levers This will cause the tires to rotate in full forward Squeeze the drive levers back and re lock the neutral lock bail Verify that the tire is not turning Retighten the 9 16 jam nut Repeat on other side if necessary GROUND SPEED NEUTRAL ADJUSTMENT Jack up the rear of the unit until the rear wheels are off of the ground Secure with jack stands Verify that the neutral lock bail locked in the drive levers See Neutral Lock Adjustments to ad just if necessary Loosen the jam nut on the ground speed stop bolt on the front of the con sole and back it out a little Move the ground speed lever to the rear position If the tires do not stop adjustment of the tracking knob and tracking bolt may be required Loosen the jam nut on the tracking bolt and turn it until the bolt just contacts the drive left drive lever Turn the tracking knob until the threaded portion just con tacts the right drive lever Holding down the O P lever unlock the neutral lock bail If the tires ro tate then the tracking SETUP AND ADJUSTMENTS bolt and tracking knob will need to be
7. ffects could damage the engine Engine oil Change oil to manufacturers speci fications Stop engine and remove key Drain oil when engine is warm Thoroughly clean around cap before removing Remove oil drain cap from the right side of engine block and replace drain cap Remove oil filter and replace Put a light coat 10 12 13 14 of clean oil on the filter gasket before install ing Fill engine with oil using manufacturers specs see Kawasaki owner s manual Start engine and idle slowly to allow the oil to recoat the interior of the engine and then inspect for leaks Hydraulic oil Check daily Thoroughly clean around cap Remove cap Oil level should be 1 below the bottom of the fill tube If not add oil NOTE Use only synthetic 15W 50 Mobil 1 Tire pressure Check every 25 to 50 hours Rear tires require 15 psi and caster tires 20 psi Belts Check every 25 hours Stop engine and remove key Check the condition of all belts Lubrication every 25 hours Caster tires and front caster pivots Clean grease zerk thoroughly before greas ing Fuel filter Replace annually or as needed Hydraulic filter and oil Change every 500 hours or yearly Stop engine and remove key Clean around the filter and the drain plug on the bot tom side of the tank Remove the filter and al low any oil to drain from the filter head Then replace with new filter Use only Husqvarna p n 102606 filter which has a bypass
8. ion NOTE To begin motion the operator must move the ground speed lever forward before disen gaging the neutral lock bail After you release the neutral lock bail allow the drive levers to move forward at the same time The mower will move in a straight line in that direction Movement of the right drive lever forward will cause the right wheel to rotate in a forward di rection Movement of the left drive lever for ward will cause the left wheel to rotate in a for ward direction To stop forward travel pull le vers back into the stop position To turn right while moving in a forward direc tion pull the right drive lever back towards the stop position this will slow the right wheel and cause the mower to turn in that direction To turn left while moving in forward direction pull the left drive lever back towards the stop position this will slow the left wheel and cause the mower to turn in that direction Blade engagement switch Located on the left side of the console To engage the blades pull up on the switch Push down on the switch to disengage the blades Throttle control Located on the right side of the console Use the throttle to control the engine RPM 6 8 10 11 Tracking knob Located on the front side of the ground speed lever If the mower will not travel in a straight line on a smooth surface turn the tracking knob the proper direction until it straight ens out Key switch Located on the
9. items daily for their condition and proper op eration If the condition or operation of any of these devices is questionable they must be replaced or repaired before using the mower Thoroughly inspect the area to be mowed and remove all stones sticks wire and other de bris that may be thrown by the mower Also note or mark other obstacles such as holes stumps etc Do not operate the mower when barefoot or wearing open shoes Always wear substantial footwear and long pants Fill gas tank before starting mower DO NOT SMOKE near gasoline containers Do not fill gas tank indoors or when engine is hot or run ning Clean off any spilled gasoline before start ing the mower OPERATION 1 2 3 Mow only in daylight or good artificial light Do not operate the mower in wet grass if pos sible Mow across slopes Use extreme caution when mowing or turning on slopes Always turn to the downhill side Do not mow excessively steep slopes mower may tip over and cause injury or death Use caution when backing up Stop the blades when crossing surfaces other than grass or when traveling to and from the area to be mowed Never operate the mower with defective bro ken or excessively worn parts Keep all guards shields and safety devices in place and in proper working order 7 Do not change the engine governor settings or over speed the engine Operating the engine at excessive speeds will increase the hazard of injur
10. lug wire or wires 2 Check tension on the belt If it feels loose ad justment will need to be made 3 Loosen the nut on the bottom of the idler pul ley 4 Slide the idler pulley against the belt retighten the nut while applying pressure to the idler pul ley INTERLOCK SAFETY SYSTEM The interlock safety system is to prevent the en gine form starting if the blade switch is engaged or the neutral lock bails is unlocked It also causes engine shutdown if the operator falls from or at tempts to leave the operator position while the blades are engaged or the neutral lock bail is un locked After the engine starts the operator must hold either the left or right O P lever down before engaging the blades or unlocking the neutral lock bail If neither O P lever is held the engine will stop Check the function of the safety electrical system on a regular basis 1 Engine must kill if blades are engaged without at least one O P lever held down 2 Engine must kill if the neutral lock bail is un locked from the drive levers without holding down at least one O P lever 3 Engine must not start unless blades are off and the neutral lock bail is locked in the drive levers 4 Do not operate the mower if the interlock safety system allows operation or starting in any un safe condition NEUTRAL LOCK ADJUSTMENT Jack up the rear of the unit until the rear wheels are off of the ground Secure with jack stands Move the ground spe
11. the dipstick all the way but do not screw down Remove the dipstick and check oil level If oil level is low add oil Use engine manufacturers specs for type of oil Pump drive belt Stop engine and remove key Check the tension on the belt Mower blades Stop engine and remove key Inspect blades and sharpen or replace as needed Check daily or more often if needed The machine requires more power with dull blades and gives a poor cut If blades get bent replace them Blades shouldn t have any notches from hitting objects The air foil on top of the blade should be sufficient to raise the grass for cutting If blades are in good con dition sharpen at an angle of 22 to 28 degrees about 2 1 2 inches in from the tips Note After sharpening check blades for proper balance if needed correct balance to prevent exces sive vibration Safety interlock system Check daily and never operate the mower if this system is not func tioning properly Hardware Stop engine and remove key thor oughly inspect the entire machine for any miss ing or loose hardware Check daily Air cleaner Stop engine and remove key Re move plastic cover and loosen wingnut on the air cleaner Remove the foam pre cleaner and wash or replace if needed Inspect paper filter and replace if dirty Check every 25 hours daily if in very dirty conditions Fuel efficiency en gine RPM and available power goes down rap idly if the air filter is dirty Prolonged e
12. turned in the appropriate direction until the tires stop Move ground speed lever to the fast position and back to stop Verify that the tires stop Ad just if necessary Tighten jam nut on the track ing bolt With the ground speed lever to the rear turn the ground speed stop bolt until it just con tacts the bottom of the ground speed lever See Figure 3 Tighten jam nut on ground speed stop bolt Reverify that all the tires stop with the ground speed lever and the neutral lock bail GROUND SPEED ADJUSTMENT FIGURE 3 GROUND SPEED LEVER FRICTION The ground speed lever has friction washers to adjust the tension of the lever To adjust use two 9 16 wrenches and tighten or loosen the bolt and nut on each side of the friction plates See Figure 4 a FF gle SPEED ADJUSTMENT FIGURE 4 OPERATION CONTROLS f Be thoroughly familiar with all controls their function and how to operate them before oper ating the mower Drive levers Located on each side of the handle control direction of movement The left lever controls the flow of oil from the left hydro pump to the left wheel motor The right lever controls the flow of oil from the right hydro pump to the right wheel motor Ground speed lever Located in the center of the console Controls the forward speed of the mower Push the lever forward if you want to go faster pull it back to go slower or pull it all the way back to the neutral or stop posit
13. ube Mount the discharge chute to the front deck using the fasteners provided on the deck CUTTING HEIGHT fh 2 3 Stop the mower and disengage the blades Raise the deck height lever to the transport po sition Remove the height adjustment pin and place it in the desired cutting height hole Move deck height lever down onto the pin and mow NOTE anti scalp rollers must be in the proper position for maximum deck floatation See the decal on the front deck MOWER DECK LEVELING 1 2 3 Position mower on a flat surface and stop en gine Check the tire pressure of all four tires Infla tion should be 15 psi Place two 2x4 s on edge under the cutting deck from front to rear and lower the deck down onto the 2x4 s Adjust the four upper chain bolts H to the cen ter of the slot in the deck lift arms NOTE make sure deck lift blocks are tightly bolted to the frame Check chains for equal tension If unequal adjust upper chain bolt in slot Place deck in the 5 cutting height and mea sure from the cutting edge of the blade to a flat surface to check deck cutting height SETUP AND ADJUSTMENTS FRONT DECK BELT ROUTING NS Na LECTRIC CLUTCH N HE ENGINE DECK BELTS IDLER a _ SPRING LOADED DLER ARM FIXED IDLER PULLEY N CENTER DECK A PULLEY FIGURE 2 PUMP BELT 1 Before performing adjustments on pump belt turn the mower off and disconnect spark p
14. valve and the correct micron filter Remove one of the hydraulic lines from the bottom of the tank and allow the tank to drain reinstall the hy draulic line Fill tank with synthetic 15W 50 Mobil 1 1 below the fill tube and replace cap Block up the rear of unit until wheels will rotate freely and start engine at a slow idle move the control levers forward and run for several minutes Stop engine and recheck oil level If wheels don t response an air lock has occurred within the hydraulic system Bleed air from lines or let stand overnight to allow the air time to dissipate out of the oil Retry responses amp check the oil level Note Serious damage to the pumps and wheel motors can occur if the system is ran with an air lock MAINTENANCE CUTTER HOUSING SPINDLE ASSEMBLYS Grease housings once weekly or every 40 to 50 hours of use Use a good synthetic grease Pump grease in until a small amount purges from the popet on the underside of the deck Check the torque of the pulley bolt 45 ft lbs should be maintained SPINDLE ASSEMBLY ZERK 8 D SPECIAL BOLT LOCKWASHER lt gt HEAVY WASHER gt PULLE BUSHING HOUSING ______ POPPET BEARING SPACER SHAFT SEAL 10 MAINTENANCE WINTER STORAGE To prepare your Husqvarna mower for winter storage perform the routine maintenance and necessary adjustments and record the part numbers of worn or broken parts so the
15. y and can severely damage your ma chine 8 Keep hands feet and clothing away from ro tating parts when operating mower 9 Stop the blades and engine before leaving the operators position for any reason 10 Never make adjustments to the mower while engine and or blades are running 11 After striking a foreign object stop mower and remove key Inspect the mower for any dam age and repair it immediately before continu ing to mow 12 Never operate this equipment in an enclosed or confined area without proper ventilation of the engine exhaust 13 Do not allow any passengers to ride on the mower Keep others away from the mower when in operation TRANSPORTATION Turn off fuel valve and strap mower to trailer MAINTENANCE 1 Keep all nuts bolts and screws tight to keep mower in safe operating condition 2 Engine maintenance should comply with en gine manufactures specifications See the en gine manual for specifications 3 Never store the mower with gas in the tank in side a building where fumes can reach an open flame or spark 4 To reduce the risk of fire keep the mower free of grass leaves and excessive grease or oil 5 Have your mower inspected and serviced each year by an authorized Husqvarna dealer 6 Use only authentic Husqvarna replacement parts to insure the safety and quality of your mower is maintained 7 Safety decals should be replaced if they are missing or illegible Decals can be purchased
16. y may be ordered and replaced before the next mowing season Use only authentic Husqvarna replacement parts to insure proper fit and the saftey of your mower is maintained Treat the fuel in the tank with a fuel stablizer such as STA BIL This will minimize the formation of fuel gum deposits during storage Read and follow the mix ratio on the container Run the engine for at least 10 minutes after adding the stablizer to bring it into the carburetor These few tips will help make your mower ready when needed for the next mowing season and insure many years of dependable service Maintenance Engine 4 MAINTENACNE CHART Maintance Interval hours Daily 25 50 100 200 250 500 Hydraulics Electrical Lubricate General Check oil level Change oil and filter 1 Clean the air filter s 3 Replace air filter s 3 Check for fuel and oil leakage Clean cooling flanges 3 Check cooling air inlet Replace fuel filter Replace plugs Check oil level Check for oil leaks Change hydraulic oil 2 Change oil filter 2 Check battery Check the safety system Left and right deck struts Deck idler arm Caster swivels Castertires Deck lift lever Throttle cable Choke cable Cutter housings Deck bell cranks Lift lever Check bolts and nuts Check cutting deck Clean cutting deck 3 Clean pump compartment 3 Check tire pressure 15 psi Check belts Check and adjust throttle cable X x
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