Husqvarna 536 LIXP Chainsaw User Manual
Contents
1. 1 Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with spark plug 2 Remove screws retaining drive cover and remove drive cover from lawn mower housing See Fig 20 LAWN MOWER HOUSING FIG 20 3 Remove drive cable from anchor then detach spring from idler arm assembly See Fig 21 IDLER ARM ASSEMBLY DRIVE CABLE ANCHOR DRIVE BELT DRIVE PULLEY BELT KEEPER HOUSING HOLE FIG 21 4 Pivot idler arm assembly to slacken drive belt then remove drive belt from drive pulley belt keepers and idler arm 5 Turn lawn mower on its side Make sure air filter and carburetor are up 6 Remove screw securing debris shield Note that the debris shield has a tab which fits into a gap in the housing See Fig 22 15 HOUSING HOLE CRANKSHAFT BLADE ADAPTER HARDENED WASHER SHIELD WASHER x SS BLADE BOLT FIG 22 7 Use a wood block between blade and mower housing to prevent blade from turning when removing blade bolt NOTE Protect your hands with gloves and or wrap blade with heavy cloth 8 Remove blade bolt 9 Remove blade attaching hardware bolt lock washer hardened washer blade adapter and debris shield as one assembly Remove drive belt from blade adapter and debris shield discard old belt TO REPLACE DRIVE BELT See Figs 20 23 1 Place new drive belt in the belt retainer of the debri2. Bearing Axle Support Gear Case Assembly See Breakdown Bearing Ball Wheel Bracket Gear Case Drive Pulley Screw Pulley Drive Nut Hex Flangelock Bolt Idler Pulley Assembly V Groove O Ring Nut Hex Flangelock Nut Hex Lock Idler Arm Pulley Idler Bolt Hex Head Shoulder Screw 1 4 20 x 1 16 KEY PART NO NO 30 532 18 34 57 31 532 08 83 48 32 532 18 43 68 33 5382 08 39 23 34 53218 36 95 35 5382 18 59 94 36 532 18 82 91 37 532 17 50 98 38 81200 00 58 39 532 17 51 03 40 532 17 51 05 41 532 17 51 04 42 532 18 41 72 43 532 18 70 92 44 53218 70 90 45 532 16 34 09 46 532 18 43 69 47 53218 34 38 48 532 16 96 75 49 532 18 70 89 50 532 18 36 88 51 532 18 83 31 52 532 17 51 02 53 532 18 70 91 54 532 18 83 30 55 532 18 73 56 56 532 18 59 13 DESCRIPTION Cover Dust Wheel Washer Flat 3 8 Wheel Assembly Rear 9 x 2 1 4 Nut Hex Hubcap Knob Spring Torsion Pawl E Ring Pinion Gear Retainer Drive LH Disc Drive Seal Friction Lever Selector Wheel Height Rear Lever Selector Wheel Height Front Screw Wheel Assembly Front 9 x 2 1 4 Bushing Front Axle Retainer Hairpin Cotter Torque Shaft Assembly Front Belt Drive Pinion Assembly LH Retainer Drive RH Rear Axle Assembly Pinion Assembly RH Decal Drive Control Decal Drive Control Adjustment bottom NOTE All component dimensions given in U S inches 1 inch 25 4 mm 2002 2 18 8 LES 69282
3. FRONT HANDLE ROUND DOOR STARTER ROPE FIG 12 2 Remove grass catcher with clippings from lawn mower using both front and rear handles 3 Empty clippings from bag using rear handle and strap The weight of the grass will open the door 4 Snap door shut over frame before installing grass catcher on mower NOTE Do not drag the bag when emptying it will cause unnecessary wear REAR 2 HANDLE Q FRONT HANDLE FIG 13 OPERATION BEFORE STARTING ENGINE ADD OIL See Figs 14 and 15 Your lawnmower is shipped without oil inthe engine For type and grade of oil to use see ENGINE in the Maintenance section of this manual A CAUTION DO NOT overfill engine with oil or it will smoke heavily from the muf fler on startup 1 Be sure lawnmower is level 2 Remove oil dipstick from oil fill Spout 3 Engine holds 18 5 ounces of oil For type and grade of oil to use see ENGINE in the Maintenance section of this manual 4 Pour oil slowly Do not overfill Wait one minute to al low oil to settle Use guage on oil fill cap dipstick for checking level Insert dipstick into the tube and rest the oil fill cap on the tube DO NOT thread the cap into the tube when taking reading 5 Always be sure to tighten dipstick before starting engine IMPORTANT e Check oil level before each use Add oil if needed Fill to full line on dipstick e Change the oilafter every 25 hours of operation or each
4. 05 70 72 Seal 4 532 18 39 08 Drive Shaft 5 532 16 08 18 Bearing Needle Thrust 6 532 07 78 81 Bearing 7 532 16 08 17 Washer Thrust 8 532 85 08 48 Key Hi pro 9 532 18 41 34 Shaft Worm 10 532 16 06 79 Gear Helical 11 532 16 06 73 Gear Case Lower 12 532 05 70 79 Washer Hardened 13 812 00 00 39 E Ring 14 532 08 64 47 Plug 532 75 03 69 Grease NOTE All component dimensions given in U S inches 1 inch 25 4 mm 19 ROTARY LAWN MOWER MODEL NUMBER 55B21HV 55B21HVA PRODUCT NUMBER 954 22 32 27 Le ROTARY LAWN MOWER MODEL NUMBER 55B21HV 55B21HVA PRODUCT NUMBER 954 22 32 27 KEY PART NO NO 532 18 60 03 532 06 53 22 532 18 34 83 532 18 52 28 532 18 34 81 812 00 00 14 532 18 60 02 532 18 34 79 532 18 63 02 O gt O1 Q N 9 81741 13 18 10 53218 43 31 11 532 18 34 63 12 e 13 532 18 37 70 14 532 18 45 72 15 532 15 04 06 16 532 18 04 59 17 532 18 03 93 18 873 90 04 00 19 532 18 74 92 20 874 78 04 10 21 532 75 00 97 22 23 532 18 36 09 24 532 75 11 52 25 532 18 34 45 26 532 18 34 46 27 532 10 73 39 28 532 18 59 95 29 53218 34 47 30 532 18 60 01 31 532 18 34 78 32 53218 34 45 33 532 18 60 00 lt 532 18 63 01 DESCRIPTION Handle Grassbag Rear Hairpin Cotter Rod Rear Handle Grassbag Grassbag Frame Grassbag E Ring Door Grassbag Rod Pivot Grassbag Assembly Complete Consists of Key Numbers 1 8 Scre
5. MOWER See Figs 9 thru 11 Your lawn mower was shipped ready to be used as a mulcher To convert to rear bagging or side discharging REAR BAGGING e Remove knob securing mulcher door to lawn mower housing e Open mulcher door and insert tabs of discharge chute into hinge bracket opening and position rear of chute over threaded stud DISCHARGE CHUTE TABS _ ae HINGE BRACKET FIG 9 MULCHER DOOR e Secure rear of discharge chute to lawn mower housing with knob e Place rear handle of grass catcher on the crossbar of the lawn mower s lower handle as shown e Lift the round door of the discharge chute and place the grass catcher into place on the discharge chute NOTE Be sure round door of discharge chute rests on grass catcher as shown e Mower is now ready for rear bagging operation e Toconvertto mulching operation remove grass catcher and discharge chute Secure mulcher door to mower housing with knob e Toconvertto side discharging operation remove grass catcher and discharge chute Install side discharge deflector and secure it to lawn mower housing with knob REAR HANDLE CROSSBAR GRASS CATCHER DISCHARGE CHUTE THREADED MULCHER DOOR FIG 10 SIDE DISCHARGING e Grass catcher and discharge chute must be re moved e Open mulcher door and install front of side discharge deflector beneath it as shown e Secure rear of side discharge deflector to lawn mower housing with
6. 5 Husqvarna A SAFETY RULES Safe Operation Practices for Walk Behind Mowers A IMPORTANT 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 DO NOT I GENERAL OPERATION e Read understand and follow all instructions on the machine and in the manual s before starting Be thor oughly familiar with the controls and the proper use of the machine before starting e Do not put hands or feet near or under rotating parts Keep clear of the discharge opening at all times Only allow responsible individuals who are familiar with the instructions to operate the machine e Clear the area of objects such as rocks toys wire bones sticks etc which could be picked up and thrown by the blade e Be sure the area is clear of other people before mow ing Stop machine if anyone enters the area Do not operate the mower when barefoot or wearing open sandals Always wear substantial foot wear e Do not pull mower backwards unless absolutely nec essary Always look down and behind before and while moving backwards e Do not operate the mower without proper guards plates grass catcher or other safety protective devices in place e See manufacturer s instructions for proper operation and installation of accessories Only use accessories approved by the manufacturer e Stop the blade s whe
7. CPSC SAFETY REQUIREMENTS Our rotary walk behind power lawn mowers conform to the safety standards of the American National Standards Institute and the U S Consumer Product Safety Commission OPERATOR PRESENCE CONTROL BAR must be held down to the handle to start the blade Release to stop the blade THROTTLE ENGINE CONTROL used for starting and stopping the engine and allows you to select either FAST or SLOW engine speed MULCHER DOOR allows conversion to discharge or bagging operation BLADE BRAKE CONTROL used to engage the blade after the engine is started STARTER HANDLE used for starting the engine DRIVE CONTROL LEVER used to engage power pro pelled forward motion lawn mower DUAL POINT HEIGHT ADJUSTER used to adjust cutting height of lawn mower OPERATION adic The operation of any lawn mower can result in foreign objects thrown into the eyes which can result in severe eye damage Always wear safety glasses or eye shields while operating your lawn mower or peters performing any adjustments or repairs We recommend standard safety glasses or a wide vision safety THAN NO SIGHT mask over spectacles HOW TO USE YOUR LAWN MOWER THROTTLE ENGINE CONTROL See Fig 5 The engine is controlled by a throttle control located on the side of the upper handle Choke position is for starting a cold engine fast position is for starting a warm engine normal cutting trimming and better grass bagging SL
8. E ENGINE GOVERNOR WHICH IS FACTORY SET FOR PROPER ENGINE SPEED OVERSPEEDING THE ENGINE ABOVE THE FACTORY HIGH SPEED SETTING CAN BE DANGEROUS IF YOU THINK THE ENGINE GOVERNED HIGH SPEED NEEDS ADJUSTING CONTACT YOUR NEAREST AUTHORIZED SERVICE CENTER WHICH HAS PROPER EQUIPMENT AND EXPERIENCE TO MAKE ANY NECESSARY ADJUSTMENTS STORAGE Immediately prepare your lawn mower for storage at the end of the season or ifthe unit will not be used for 30 days or more LAWN MOWER When lawn mower is to be stored for a period of time clean it thoroughly remove all dirt grease leaves etc Store in a clean dry area 16 1 Clean entire lawn mower See CLEANING in the Maintenance section of this manual 2 Lubricate as shown in the Maintenance section of this manual 3 Be sure that all nuts bolts screws and pins are se curely fastened Inspect moving parts for damage breakage and wear Replace if necessary 4 Touch up all rusted or chipped paint surfaces sand lightly before painting STORAGE HANDLE See Figs 25 and 26 You can fold your lawn mower handle for storage 1 Loosen the two 2 handle knobs on sides of the upper handle and allow handle to fold down to the rear 2 Remove the two 2 handle knobs and carriage bolts on sides of the lower handle and pivot entire handle assembly forward and allow it to rest on mower 3 Reinstall knobs and carriage bolts to lower handle or handle brackets for safe keepi
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11. OW position is for light cutting trimming and fuel economy and STOP position is for stopping the engine oe a FAST SLOW FIG 5 BLADE CONTROL See Fig 6 CAUTION When the blade control is engaged the blade turns When the blade control is disengaged the blade stops e Your lawn mower has a blade brake clutch fastened to the engine crankshaft which starts or stops the blade To start the blade hold the operator presence control bar downto the handle and push the blade brake control lever forward until it latches To stop the blade release the operator presence control bar Do not start the blade in deep uncut grass Move lawn mower out of uncut grass before starting blade CAUTION Federal regulations require this blade brake control to minimize the risk of blade contact injury Do not under any circumstances attempt to defeat the function of this control BLADE BRAKE CONTROL LEVER OPERATOR PRESENCE CONTROL BAR fo f f f f BLADE DISENGAGED FIG 6 DRIVE CONTROL See Fig 7 e Self propelling is controlled by holding the operator presence control bar down to the handle and pulling the drive control lever rearward to the handle The farther toward the handle the lever is pulled the faster the unit will travel e Forward motion will stop when either the operator pres ence control bar or drive control lever are released To stop forward motion without stopping blade rele
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13. ase the drive control lever only Hold operator presence control bar down against handle to continue mowing without self propelling NOTE If after releasing the drive control the mower will not roll backwards push the mower forward slightly to disengage drive wheels OPERATOR PRESENCE CONTROL BAR l CONTROL LEVER TO ENGAGE DRIVE CONTROL DISENGAGED ADJUSTMENT BUTTON ON DRIVE UNDERSIDE CONTROL FIG 7 DRIVE CONTROL ADJUSTMENT See Fig 7 Over time the drive control system may become loose resulting in decreased speed There is a button on the underside of the drive control housing to increase tension on the drive cable Proceed as follows 1 Turn unit off and disconnect spark plug wire from spark plug 2 Pullout button on underside of drive control then push it back in 3 Operate mower to test drive speed If there is no increase your drive belt is worn and should be re placed OPERATION TO ADJUST CUTTING HEIGHT See Fig 8 Both front wheels are adjusted by a single lever on the left front wheel Likewise both rear wheels are adjusted by a single lever on the left rear wheel e Pull adjuster lever toward wheel To raise mower move lever forward to desired position To lower mower move the lever toward the rear Be sure to adjust both front and rear wheels to the same height HEIGHT ADJUSTER LEVER LEVER BACKWARD TO LOWER MOWER LEVER FORWARD TO RAISE MOWER FIG 8 TO CONVERT
14. ch 5 hours of use LUBRICATION CHART 2 ENGINE OIL MULCHER DOOR HINGE PIN 1 REAR DOOR HINGE IX YX D HANDLE BRACKET MOUNTING PINS 1 SPRAY LUBRICANT 2 SEE ENGINE IN MAINTENANCE SECTION MAINTENANCE LAWN MOWER Always observe safety rules when performing any main tenance TIRES e Keep tires free of gasoline oil or insect control chem icals which can harm rubber e Avoid stumps stones deep ruts sharp objects and other hazards that may cause tire damage DRIVE WHEELS Check rear drive wheels each time before you mow to be sure they move freely The wheels not turning freely means trash grass cuttings etc are in the drive wheel area and must be cleaned to free drive wheels If necessary to clean the drive wheels be sure to clean both rear wheels BLADE CARE For best results mower blade must be kept sharp Replace bent or damaged blades TO REMOVE BLADE See Fig 18 1 Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with spark plug 2 Turn lawn mower on its side Make sure air filter and carburetor are up 3 Use a wood block between blade and mower housing to prevent blade from turning when removing blade bolts NOTE Protect your hands with gloves and or wrap blade with heavy cloth 4 Remove blade bolts by turning counter clockwise TO REPLACE BLADE See Fig 18 1 Position the blade and spacer Be sure the tra
15. el stabilizer ENGINE OIL Drain oil with engine warm and replace with clean en gine oil See ENGINE in the Maintenance section of this manual CYLINDER 1 Remove spark plug 2 Pour one ounce 29 ml of oil through spark plug hole into cylinder 3 Pull starter handle slowly a few times to distribute oil 4 Replace with new spark plug OTHER Do not store gasoline from one season to another e Replace your gasoline can if your can starts to rust Rust and or dirt in your gasoline will cause problems e f possible store your unit indoors and cover it to give protection from dust and dirt e Cover your unit with a suitable protective cover that does not retain moisture Do not use plastic Plastic cannot breathe which allows condensation to form and will cause your unit to rust IMPORTANT NEVER COVER MOWER WHILE ENGINE AND EXHAUST AREAS ARE STILL WARM CAUTION Never store the lawn mower with gasoline in the tank inside a build ing where fumes may reach an open flame or spark Allow the engine to cool before storing in any enclosure TROUBLESHOOTING POINTS Does not start Dirty air filter Clean replace air filter Out of fuel Fill fuel tank Stale fuel Empty fuel tank and refill tank with fresh clean gasoline Water in fuel Empty fuel tank and refill tank with fresh clean gasoline Spark plug wire is disconnected Connect wire to plug Bad spark plug Replace spark plug Lo
16. g parts have stopped and turn fuel valve to OFF position if you do not intend to restart the engine soon TO START ENGINE See Fig 16 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 1 Be sure fuel valve is in the ON position 2 To start a cold engine move handle mounted throttle choke control lever to CHOKE position 3 Pull starter handle quickly Do not allow starter rope to snap back 4 Slowly move throttle control lever to FAST position after engine starts e To start a warm engine move throttle control lever to FAST position then follow steps above OPERATION FIG 16 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 e For extremely heavy cutting reduce the width of cut by overlapping previously cut path and mow slowly e For better grass bagging and most cutting conditions the engine speed should be set in the fast position e Pores in cloth grass catchers can become filled with dirt and dust with use and catchers will collect less grass To prevent this regularly hose catcher off with water and let dry before using e Keep
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18. iling edge of blade opposite sharp edge is up toward the engine and install the blade bolts 2 Use block of wood between blade and lawn mower hous ing and tighten the blade bolts turning clockwise e The recommended tightening torque is 36 44 ft lbs IMPORTANT BLADE BOLTS ARE HEAT TREATED IF BOLTS NEED REPLACING REPLACE ONLY WITH APPROVED BOLTS SHOWN IN REPAIR PARTS SECTION OF THIS MANUAL TRAILING EDGE SPACER TO SHARPEN BLADE NOTE We do not recommend sharpening blade but if you do be sure the blade is balanced Care should be taken to keep the blade balanced An unbalanced blade will cause eventual damage to lawn mower or engine e The blade can be sharpened with a file or on a grind ing wheel Do not attempt to sharpen while on the mower e To check blade balance drive a nail into a beam or wall Leave about one inch of the straight nail exposed Place center hole of blade over the head of the nail If blade is balanced it should remain in a horizontal position If either end of the blade moves downward sharpen the heavy end until the blade is balanced GRASS CATCHER e The grass catcher may be hosed with water but must be dry when used e Check your grass catcher often for damage or dete rioration Through normal use it will wear If catcher needs replacing replace only with approved replace ment catcher shown in the Repair Parts section of this manual Give the lawn mower model number whe
19. ine 5 Slowly pour oil down the oil fill spout stopping every few ounces to check the oil level with the dipstick 6 Stop adding oil when you reach the FULL mark on the dipstick Wait a minute to allow oil to settle 7 Continue adding small amounts of oil rechecking the dipstick until oil level settles at FULL DO NOT over fill or engine will smoke heavily from the muffler on startup 8 Always be sure to retighten oil dipstick before starting engine 9 Reconnect spark plug wire to spark plug AIR FILTER Your engine will not run properly and may be damaged by using a dirty air filter Replace the air filter every 100 hours of operation or every season whichever occurs first Service air cleaner more often under dusty conditions See the maintenance section of your engine manual MUFFLER Inspect and replace corroded muffler as it could create a fire hazard and or damage SPARK PLUG Replace spark plug at the beginning of each mowing season or after every 100 hours of operation whichever occurs first Spark plug type and gap setting are shown in the PRODUCT SPECIFICATIONS section of this manual CLEANING IMPORTANT FOR BEST PERFORMANCE KEEP MOWER HOUSING FREE OF BUILT UP GRASS AND TRASH CLEAN THE UNDERSIDE OF YOUR MOWER AFTER EACH USE CAUTION Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with spark plug e Clean the underside of your lawn mower by
20. ine crankshaft 2 Contact a qualified service center 3 Blade adapter broken 3 Replace blade adapter 4 Blade dragging in grass 4 Move lawn mower to cut grass or other hard surface before starting 5 Defective Blade Brake Control 5 Replace Blade Brake Control Grass catcher 1 Cutting height too low 1 Raise cutting height not filling 2 Lift on blade worn off 2 Replace blade if so equipped 3 Catcher not venting air 3 Clean grass catcher Hard to push 1 Grass is too high or wheel height is too low 1 Raise cutting height 2 Rear of lawn mower housing or cutting 2 Raise rear of lawn mower housing one 1 blade dragging in heavy grass setting higher 3 Grass catcher too full 3 Empty grass catcher 4 Handle height position not right for you 4 Adjust handle height to suit BBC does 1 Defective Blade Brake Control 1 Replace Blade Brake Control not engage Loss of drive or slowing of 1 Belt wear 1 Check replace drive belt 2 Belt off of pulley 2 Check reinstall drive belt 3 Drive cable worn or broken 3 Put belt on pulleys replace belts if broken 4 Loose drive control system 4 Adjust drive control drive speed ROTARY LAWN MOWER MODEL NUMBER 55B21HV 55B21HVA PRODUCT NUMBER 954 22 32 27 GEAR CASE ASSEMBLY PART NUMBER 532 18 36 99 KEY PART NO NO DESCRIPTION 1 817 54 10 11 Screw Tapping 10 24 x 668 2 532 16 06 72 Gear Case Upper 3 532
21. is lawn mower does not cover items that have been subjected to operator abuse or negli gence To receive full value from the warranty opera tor 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 the Service and Adjustments section of this manual e Atleast once a year replace the spark plug clean or replace air filter element and check blade for wear A new spark plug and clean new air filter element assure proper air fuel mixture and help your engine run better and last longer e Follow the maintenance schedule in this manual BEFORE EACH USE 1 Check engine oil level 2 Check for loose fasteners 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 12 po of j s V re O Y w _ rs C E 1 Change more often if operating under a heavy load or in high outdoor temperatures 2 Service more often if operating in dirty or dusty conditions 3 Replace blades more often when mowing in sandy soil 4 Charge 48 hours at end of season 5 And after ea
22. ith mower 2 Cut down two end corners of carton and lay end panel down flat 3 Remove all packing materials except padding between upper and lower handle and padding holding operator presence control bar to upper handle 4 Roll lawn mower out of carton and check carton thor ougly for additional loose parts HOW TO SET UP YOUR LAWN MOWER TO UNFOLD HANDLE See Figs 1 and 2 IMPORTANT UNFOLD HANDLE CAREFULLY SO AS NOT TO PINCH OR DAMAGE CONTROL CABLES 1 Raise lower handle to operating position and align hole in handle with one of the height positioning holes in the handle bracket 2 Insert handle bolt through handle and bracket and secure with knob 3 Repeat for opposite side of handle 4 Remove protective padding raise upper handle sec tion into place on lower handle and tighten both handle knobs 5 Remove packing material from around control bar Your handles may be adjusted for your mowing comfort Refer to ADJUST HANDLE in the Service and Adjustments section of this manual OPERATOR PRESENCE CONTROL BAR UPPER HANDLE LOWER HANDLE MOWING POSITION HANDLE BRACKET FIG 2 ASSEMBLY TO ASSEMBLE GRASS CATCHER See Figs 3 and 4 1 Slide grass catcher bag over the frame Make sure the rear handle is on top the same side as the front handle and the strap is on the bottom 2 Slip vinyl bindings over frame NOTE If vinyl bindings are too stiff hold them in warm water for a fe
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24. knob e Mower is now ready for side discharging operation e To convert to mulching operation side discharge de flector must be removed and mulcher door secured to mower housing with knob OPERATION e To convert to rear bagging operation side discharge deflector must be removed discharge chute and grass catcher installed and discharge chute secured to mower housing with knob MULCHER DOOR THREADED STUD SIDE DISCHARGE DEFLECTOR FIG 11 SIMPLE STEPS TO REMEMBER WHEN CONVERTING YOUR LAWN MOWER FOR MULCHING 1 Grass catcher discharge chute and side discharge deflector removed 2 Mulcher door secured to mower housing with knob FOR REAR BAGGING 1 Side discharge deflector removed 2 Grass catcher and discharge chute installed with discharge chute secured to lawn mower housing with knob 3 Round door of discharge chute resting on top of grass catcher FOR SIDE DISCHARGING 1 Grass catcher and discharge chute removed 2 Side discharge deflector installed and secured to mower housing with knob CAUTION Donotrun your lawn mower without mulcher door closed side dis charge deflector installed or discharge chute and approved grass catcher in place Never attemptto operate the lawn mower with mulcher door or round door removed or propped open TO EMPTY GRASS CATCHER See Figs 12 and 13 1 Open round door of discharge chute to move starter rope out and away from grass catcher
25. n ordering ENGINE LUBRICATION Use only high quality detergent oil rated with API service classification SF SJ Select the oil s SAE viscosity grade according to your expected operating temperature SAE VISCOSITY GRADES SAE 30 10W 30 es Ed j fn F 0 30 32 40 60 80 100 C 30 20 10 0 10 20 30 40 TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE NOTE Multi viscosity oils 5W30 10W30 etc improve starting in cold weather and you should check your engine oil level frequently to avoid possible engine damage from running low on oil 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 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 MAINTENANCE TO CHANGE ENGINE OIL See Fig 19 NOTE Before tipping lawn mower to drain oil empty fuel tank by running engine until fuel tank is empty 1 Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with spark plug 2 Remove engine oil cap lay aside on a clean surface 3 Tip lawn mower on its side as shown and drain oil into a Suitable container Rock lawn mower back and forth to remove any oil trapped inside of engine OIL FILLER CAP DIPSTICK AKRON FIG 19 4 Wipe off any spilled oil from lawn mower or side of eng
26. n crossing gravel drives walks or roads e Stop the engine motor whenever you leave the equip ment before cleaning the mower or unclogging the chute e Shutthe engine motor off and wait until the blade comes to complete stop before removing grass catcher e Mow only in daylight or good artificial light e Do not operate the machine while under the influence of alcohol or drugs e Never operate machine in wet grass Always be sure of your footing keep a firm hold on the handle and walk never run e Disengage the self propelled mechanism or drive clutch on mowers so equipped before starting the engine mo tor e If the equipment should start to vibrate abnormally stop the engine motor and check immediately for the cause Vibration is generally a warning of trouble e Always wear safety goggles or safety glasses with side shields when operating mower ll SLOPE OPERATION Slopes are a major factor related to slip and fall accidents which can result in severe injury All slopes require extra caution If you feel uneasy on a slope do not mow it DO e Mowacross the face of slopes never up and down Exer cise extreme caution when changing direction on slopes e Remove obstacles such as rocks tree limbs etc e Watch for holes ruts or bumps Tall grass can hide obstacles Do not trim near drop offs ditches or embankments The operator could lose footing or balance Do not trim excessively steep slope
27. ng e When setting up your handle from the storage position the lower handle will require manually locking into the mowing position IMPORTANT WHEN FOLDING THE HANDLE FOR STORAGE OR TRANSPORTATION BE SURE TO FOLD THE HANDLE AS SHOWN OR YOU MAY DAMAGE THE CONTROL CABLES OPERATOR PRESENCE CONTROL BAR UPPER HANDLE MOWING POSITION HANDLE BRACKET FIG 26 17 ENGINE FUEL SYSTEM IMPORTANT IT IS IMPORTANT TO PREVENT GUM DEPOSITS FROM FORMING IN ESSENTIAL FUEL SYSTEM PARTS SUCH AS CARBURETOR FUEL FILTER FUEL HOSE OR TANK DURING STORAGE ALSO EXPERIENCE INDICATES THAT ALCOHOL BLENDED FUELS CALLED GASOHOL OR USING ETHANOL OR METHANOL CAN ATTRACT MOISTURE WHICH LEADS TO SEPARATION AND FORMATION OF ACIDS DURING STORAGE ACIDIC GAS CAN DAMAGE THE FUEL SYSTEM OF AN ENGINE WHILE IN STORAGE e Empty the fuel tank by starting the engine and letting it run until the fuel lines and carburetor are empty e Never use engine or carburetor cleaner products in the fuel tank or permanent damage may occur e Use fresh fuel next season NOTE Fuel stabilizer is an acceptable alternative in mini mizing the formation of fuel gum deposits during storage Add stabilizer to gasoline in fuel tank or storage container Always follow the mix ratio found on stabilizer container Run engine at least 10 minutes after adding stabilizer to allow the stabilizer to reach the carburetor Do not empty the gas tank and carburetor if using fu
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29. of grass and grass conditions may require that an area be mulched a second time to completely hide the clippings When doing a second cut mow across perpendicular to the first cut path e Change your cutting pattern from week to week Mow north to south one week then change to east to west the next week This will help prevent matting and graining of the lawn MAINTENANCE BEFORE EACH USE MAINTENANCE SCHEDULE AFTER EACH USE BEFORE EVERY 10 STORAGE HOURS OR SEASON HOURS Check for Loose Fasteners ft w j wv Clean Inspect Grass Catcher f AW w v CheckTies v 0 Check Drive Wheels MH Clean Lawn Mower och l j W Clean under Drive Cover f Check Drive Belt Pulleys f w Check Sharpen Replace Blade Lubrication Clean and Recharge Battery Check Engine Oil level Change Engine Oil Clean Air Filter Inspect Muffler Replace Spark Plug Replace Air Filter Paper Cartridge Empty fuel system or add Stabilizer Check Sharpen Replace Blade _ Lubrication Clean and Recharge Battery J Check Engine Oillevel f w Change Engine Ol fo o Clean Air Filter ooo o o Inspect Muffler Po o Replace Spark Plug f Replace Air Filter Paper Cartridge f Empty fuel system or add Stabilizer U if so equipped xx Electric Start mowers Power Propelled mowers Use a scraper to clean under deck GENERAL RECOMMENDATIONS The warranty on th
30. or 11 Reattach drive cover with screws previously removed See Fig 20 12 Connect spark plug wire to spark plug TO ADJUST HANDLE See Fig 24 The handle on your lawn mower has multiple height posi tions adjust to height that suits you 1 Remove knob and carriage bolt on one side of the lower handle 2 While holding handle assembly remove knob and car riage bolt from opposite side align hole in handle with desired hole in handle bracket and reassemble bolt and knob and tighten securely 3 Align opposite side of handle with same positioning hole and secure with bolt and knob HANDLE BRACKET FIG 24 ENGINE Maintenance repair or replacement of the emission con trol devices and systems which are being done at the customers expense may be performed by any non road engine repair establishment or individual Warranty repairs must be performed by an authorized engine manufacturer s service outlet 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 IMPORTANT NEVERTAMPERWITHTH
31. ose blade or broken blade adapter Tighten blade bolt or replace blade adapter Control bar in released position Depress control bar to handle Control bar defective Replace control bar Fuel valve lever if equipped in OFF position 10 Turn fuel valve lever to the ON position Weak battery if equipped Charge battery Disconnected battery connector if equipped 12 Connect battery to engine Engine control lever is in STOP position Place engine control lever in FAST position Loss of power 1 Rear of lawn mower housing or cutting 1 Raise cutting height blade dragging in heavy grass 2 Cutting too much grass 2 Raise cutting height 3 Dirty air filter 3 Clean replace air filter 4 Buildup of grass leaves trash under mower 4 Clean underside of mower housing 5 Too much oil in engine 5 Check oil level 6 Walking speed too fast 6 Cut at slower walking speed Poor cut 1 Worn bent or loose blade 1 Replace blade Tighten blade bolt uneven 2 Wheel heights uneven 2 Set all wheels at same height 3 Buildup of grass leaves trash under mower 3 Clean underside of mower housing Excessive 1 Worn bent or loose blade 1 Replace blade Tighten blade bolt vibration 2 Bent engine crankshaft 2 Contact a qualified service center Starter rope 1 Engine flywheel brake is on when control 1 Depress control bar to upper handle before hard to pull bar is released pulling starter rope 2 Bent eng
32. ould you experience any problem you cannot easily remedy please contact your nearest authorized service center department We have competent well trained technicians and the proper tools to service or repair this lawn mower Please read and retain this manual The instructions will enable you to assemble and maintain your lawn mower properly Always observe the SAFETY RULES SERIAL NUMBER THE MODEL AND SERIAL NUMBERS WILL BE FOUND ON ADECAL ATTACHED TOTHE REAR OF THE LAWN MOWER HOUSING YOU SHOULD RECORD BOTH SERIAL NUMBER AND DATE OF PURCHASE AND KEEP IN A SAFE PLACE FOR FUTURE REFERENCE WARNING Battery posts terminals and related accessories contain lead and lead compounds chemicals known to the State of California to cause cancer and birth defects or other reproductive harm Wash hands after handling CAUTION Muffler and other engine parts become extremely hot during operation and remain hot after engine has stopped To avoid severe burns on contact stay away from these areas PRODUCT SPECIFICATIONS Gasoline Capacity 1 0 Quarts and Type Unleaded Regular Only Oil Type API SF Su SAE 10W 30 NGK BPR6ES Gap 030 Intake 0 015 mm Exhaust 0 020 mm 36 44 ft Ibs 49 60 N m Spark Plug Valve Clearance 0 04 mm Blade Bolt Torque SL STONER RESPONSIBILITIES Read and observe the safety rules e Follow a regular schedule in maintaining caring for and using your lawn m
33. ower e Follow the instructions under Maintenance and Stor age sections of this owner s manual TABLE OF CONTENTS SAFETY RULES uuu u ee sor renee eerie inn rn Nee Arann tan Oveer 2 3 PRODUCT SPECIFICATIONS 3 CUSTOMER RESPONSIBILITIES 3 ASSEMBLY naneo ssu 4 5 OPERATION savesennisadsatisnumn msn di 6 11 MAINTENANCE SCHEDUIE 12 MAINTENANCE uLI UI III IIIa sasas 12 14 SERVICE AND ADJUSTMENTS 14 16 SIDORAQGE uuu uu u ee eee rr a bukt krk 16 17 TROUBLESrHHO0TITINQ uu ainina aaant 18 REPAIR PARTS u uuu squash aaaaskausqaoubuuuuuaquspasqiaucquqa 19 23 WAPIANTY uu azu aausSasausaanawiuqsausa 24 ASSEMBLY Read these instructions and this manual in its entirety before you attempt to assemble or operate your new lawn mower IMPORTANT THIS LAWN MOWER IS SHIPPED WITH OUT OIL OR GASOLINE IN THE ENGINE Your new lawn mower has been assembled at the factory with the exception of those parts left unassembled for ship ping purposes All parts such as nuts washers bolts etc necessary to complete the assembly have been placed in the parts bag To ensure safe and proper operation of your lawn mower all parts and hardware you assemble must be tightened securely Use the correct tools as necessary to ensure proper tightness TO REMOVE LAWN MOWER FROM CARTON 1 Remove loose parts included w
34. r operation regularly Keep machine free of grass leaves or other debris build up Clean oil or fuel spillage Allow machine to cool before storing Stop and inspect the equipment if you strike an object Repair if necessary before restarting Never attempt to make wheel height adjustments while the engine motor is running Grass catcher components are subject to wear dam age and deterioration which could expose moving parts or allow objects to be thrown Frequently check components and replace with manufacturer s recom mended parts when necessary Mower blades are sharp and can cut Wrap the blade s or wear gloves and use extra caution when servicing them Do notchange the engine governor setting or overspeed the engine Look for this symbol to point out im portant safety precautions It means CAUTION BECOME ALERT YOUR SAFETY IS INVOLVED CAUTION Always disconnect spark plug wire and place wire where it cannot contact spark plug in order to prevent accidental starting when setting up transporting adjusting or making repairs WARNING Engine exhaust some of its constituents and certain vehicle components contain or emit chemi cals known to the State of California to cause cancer and birth defects or other reproductive harm CONGRATULATIONS on your purchase of a new lawn mower It has been designed engineered and manufactured to give you the best possible dependability and performance Sh
35. rol Nut Hex Throttle Control Nut Hex Rope Guide Screw Grip Foam Bolt Engine Link Torque Spring Belt Keeper Washer Lock Nut Hex Belt Cover Lower Spacer Blade Bolt Hex Head Blade 21 Kit Housing Nut Hex 3 8 16 Washer Lock Stud Belt Guide Decal Warning not shown Owner s Manual NOTE All component dimensions given in U S inches 1 inch 25 4 mm ROTARY LAWN MOWER MODEL NUMBER 55B21HV 55B21HVA PRODUCT NUMBER 954 22 32 27 ec ROTARY LAWN MOWER MODEL NUMBER 55B21HV 55B21HVA PRODUCT NUMBER 954 22 32 27 KEY PART NO NO 1 532 18 53 12 2 532 18 82 79 3 932 18 73 53 4 532 19 02 83 D 532 18 82 78 6 532 18 16 98 7 532 18 70 97 8 532 18 62 97 9 532 18 82 80 10 532 18 59 97 11 532 18 45 71 12 81200 00 12 13 532 18 34 50 14 532 18 71 20 15 532 18 36 99 16 532 75 10 68 17 532 18 70 93 18 81754 10 11 19 532 18 47 49 20 532 13 20 10 21 532 18 37 01 22 5382 18 45 43 23 532 18 81 52 24 532 14 52 12 25 87393 05 00 26 532 18 70 98 27 532 16 60 43 28 532 16 08 29 817 06 04 10 DESCRIPTION Drive Control Assembly Complete Consists of Key Numbers 2 through 7 Cover Drive Control Top Pulley Drive Control Lever Drive Control blue Cover Drive Control Bottom Screw Torx Head 8 5 8 Bracket Mounting Drive Control Cap Drive Control Bottom Cable Drive Control Cover Assembly Drive Screw Ring Retaining Screw
36. s Do not mow on wet grass Reduced footing could cause slipping CHILDREN Tragic accidents can occur if the operator is not alert to the presence of children Children are often attracted to the machine and the mowing activity Never assume that children will remain where you last saw them Keep children out of the trimming area and under the watchful care of another responsible adult Be alert and turn machine off if children enter the area Before and while walking backwards look behind and down for small children Never allow children to operate the machine Use extra care when approaching blind corners shrubs trees or other objects that may obscure vision IV SERVICE Use extra care in handling gasoline and other fuels They are flammable and vapors are explosive Use only an approved container Never remove gas cap or add fuel with the engine running Allow engine to cool before refueling Do not smoke Never refuel the machine indoors Never store the machine or fuel container inside where there is an open flame such as a water heater Never run a machine inside a closed area Never make adjustments or repairs with the engine motor running Disconnect the spark plug wire and keep the wire away from the plug to prevent accidental starting Keep nuts and bolts especially blade attachement bolts tight and keep equipment in good condition Never tamper with safety devices Check their prope
37. s shield Be sure to route belt between belt keepers and through slot as shown See Fig 23 10 DEBRIS SHIELD SERVICE AND ADJUSTMENTS 2 Route the other end of the new drive belt through hole in housing 3 Reattach debris shield to housing with screw previ ously removed Be sure tab of debris shield is in gap of housing 4 Position blade on the blade adapter aligning the two 2 holes in the blade with the raised lugs on the adapter 5 Besure the trailing edge of blade opposite sharp edge is up toward the engine as shown See Fig 22 6 Install the blade bolt with the lock washer and hardened washer into blade adapter and crankshaft 7 Use block of wood between blade and lawn mower housing and tighten the blade bolt turning clockwise e The recommended tightening torque is 35 40 ft Ibs IMPORTANT BLADE BOLT IS HEAT TREATED IF BOLT NEEDS REPLACING REPLACE ONLY WITH APPROVED BOLT SHOWN IN THE REPAIR PARTS SECTION OF THIS MANUAL 8 Return mower to upright position 9 Install new drive belt into idler arm assembly then around the drive pulley Be sure belt is inside of belt keepers See Fig 21 NOTE Pulling on the drive belt to install it on the drive pulley will cause the other end of the belt to free itself from the debris shield retainer and come into contact with the pulley end of the blade adapter 10 Reattach drive cable spring to the idler arm assembly then reattach drive cable to anch
38. scraping to remove build up of grass and trash e Clean engine often to keep trash from accumulating A clogged engine runs hotter and shortens engine life e Keep finished surfaces and wheels free of all gasoline oil etc e We do not recommend using a garden hose to clean lawn mower unless the electrical system muffler air filter and carburetor are covered to keep water out Water in engine can result in shortened engine life CLEAN UNDER DRIVE COVER Clean under drive cover at least twice a Season Scrape un derside of cover with putty knife or similar tool to remove any build up of trash or grass on underside of drive cover SERVICE AND ADJUSTMENTS CAUTION TO AVOID SERIOUS INJURY BEFORE PERFORMING ANY SERVICE OR ADJUSTMENTS Release control bar and stop engine 1 2 3 into contact with the spark plug LAWN MOWER TO ADJUST CUTTING HEIGHT See TO ADJUST CUTTING HEIGHT in the Operation section of this manual Make sure the blade and all moving parts have completely stopped Disconnect the spark plug wire from the spark plug and place the wire where it cannot come REAR DEFLECTOR The rear deflector attached between the rear wheels of your mower is provided to minimize the possibility that objects will be thrown out of the rear of the mower into the operator s mowing position If the deflector becomes damaged it should be replaced SERVICE AND ADJUSTMENTS TO REMOVE DRIVE BELT See Figs 20 22
39. season You may need to change the oil more often under dusty dirty conditions See TO CHANGE EN GINE OIL in the Maintenance section of this manual ADD GASOLINE See Fig 15 e Fill fuel tank to bottom of tank filler neck Do not over fill Use fresh clean regular unleaded gasoline with a minimum of 87 octane Do not mix oil with gasoline Purchase fuel in quantities that can be used within 30 days to assure fuel freshness CAUTION Wipe off any spilled oil or fuel Do not store spill or use gasoline near an open flame Alcohol blended fuels called gasohol or using ethanol or methanol can at tract moisture which leads to separation and formation of acids during storage Acidic gas can damage the fuel sys tem of an engine while in storage To avoid engine problems the fuel system should be emptied before storage of 30 days or longer Empty the gas tank start the engine and let it run until the fuel lines and carburetor are empty Use fresh fuel next season See Storage Instructions for additional information Never use engine or carburetor cleaner products in the fuel tank or permanent damage may occur 10 J OIL FILLER CAP DIPSTICK gt fer be N LS ia 2 f SJ aa cs UPPER LIMIT Sy ge an Y KAXXI LOWER LIMIT GASOLINE FILLER CAP FIG 15 TO STOP ENGINE e To stop engine move throttle control lever to STOP position Wait until blade and all movin
40. top of engine around starter clear and clean of grass clippings and chaff This will help engine air flow and extend engine life MULCHING MOWING TIPS IMPORTANT FOR BEST PERFORMANCE KEEP MOWER HOUSING FREE OF BUILT UP GRASS AND TRASH SEE CLEANING IN THE MAINTENANCE SECTION OF THIS MANUAL e The special mulching blade will recut the grass clip pings 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 biode grade quickly to provide nutrients for the lawn Always mulch with your highest engine blade speed as this will provide the best recutting action of the blades e Avoid cutting your lawn when itis wet Wet grass tends to form clumps and interferes with the mulching action The best time to mow your lawn is the early afternoon At this time the grass has dried yet the newly cut area will not be exposed to direct sunlight e For best results adjust the lawn mower cutting height so that the lawn mower cuts off only the top one third of the grass blades See Fig 17 If the lawn is over grown it will be necessary to raise the height of cut to reduce pushing effort and to keep from overloading the engine and leaving clumps of mulched grass For extremely heavy mulching reduce your width of cut by overlapping previously cut path and mow slowly MAX 1 3 Nap W AN A Ul U mn FIG 17 e Certain types
41. w Tube Rear Skirt Skirt Rear Engine Honda Model Number GCV160 Order parts from Engine Manufacturer Cover Front Screw Hex Washer Head Bolt Engine Mounting Belt Cover Upper Spring Nut Hex Brake Clutch Bolt Hex Head Screw Blade Brake Clutch Order parts from Engine Manufacturer Mounting Bracket Mulcher Door Nut Hex Rod Hinge Spring Mulcher Door Decal Danger Mulcher Door Knob Door Discharge Chute Spring Door Discharge Chute Rod Door Discharge Chute Discharge Chute Plastic Discharge Chute Assembly Complete Consists of Key Numbers 30 33 KEY PART NO NO 34 532 18 74 25 35 532 18 55 88 36 53218 34 65 37 532 18 59 96 38 532 18 74 26 39 532 18 45 68 40 532 06 64 26 42 532 18 70 96 43 532 18 62 99 44 532 18 74 99 45 532 18 62 96 46 532 18 37 07 47 5382 18 45 69 48 532 18 57 79 49 532 18 45 69 50 532 18 34 69 51 532 18 34 49 52 532 18 27 48 53 532 15 04 08 54 532 18 01 88 55 53218 03 94 56 532 18 61 30 57 53205 39 98 58 87351 06 00 59 532 18 36 10 60 582 18 50 46 61 532 18 62 91 62 5382 18 04 59 63 582 18 69 57 64 873 90 06 00 65 5382 85 02 63 66 532 18 21 31 532 16 23 00 p 532 18 63 04 DESCRIPTION Adjustment Bracket Lower Handle LH Knob Star Bolt Shoulder Deflector Discharge Adjustment Bracket Lower Handle RH Bolt Handle Wire Tie Handle Assembly Lower Bail Control Screw Handle Assembly Upper Includes Foam Grip Blade Brake Cont
42. w minutes If bag gets wet let it dry before using 3 Close grass catcher door NOTE When fully closed door will snap shut over frame and vinyl bindings REAR 2 HANDLE Q FRONT HANDLE FIG 3 VINYL BINDINGS TO INSTALL ATTACHMENTS Your lawn mower was shipped ready to be used as a mulcher To convert mower to bagging or discharging see TO CONVERT MOWER in the Operation section of this manual OPERATION KNOW YOUR LAWN MOWER READ THIS OWNER S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR LAWN MOWER Compare the illustrations with your lawn mower to familiarize yourself with the location of various controls and adjustments Save this manual for future reference These symbols may appear on your lawn mower or in literature supplied with the product Learn and understand their meaning 0 amp amp a IN g S OIL DANGER KEEP HANDS AND FEET AWAY GASOLINE FILLER CAP FUEL VALVE LEVER AIR FILTER CAUTION ENGINE ENGINE FAST SLOW CHOKE FUEL OR WARNING ON OFF DRIVE CONTROL OPERATOR PRESENCE CONTROL BAR LEVER O YN XY BLADE BRAKE CONTROL N A A i TROTE ww STARTER HANDLE ENGINE CONTROL _ DRIVE COVER D HANDLE KNOB A GRASS CATCHER i ENGINE OIL CAP WITH DIPSTICK MULCHER DOOR IMPORTANT This lawn mower is shipped WITHOUT OIL OR GASOLINE in the engine DUAL POINT HEIGHT ADJUSTER LEVER MUFFLER HOUSING MEETS
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