55R21HV Owner’s Manual 532 18 63-05 Rev. 6 03.17.04 BY Printed in U.S.A.
SAFETY RULES Safe Operation Practices for Walk-Behind Mowers 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: • Do not trim near drop-offs, ditches or embankments. The operator could lose footing or balance. • Do not trim excessively steep slopes. • Do not mow on wet grass. Reduced footing could cause slipping. I.
Look for this symbol to point out impor tant safety precautions. It means CAUTION!!! BECOME ALERT!!! YOUR SAFETY IS INVOLVED. 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.
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 WITHOUT 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 shipping purposes. All parts such as nuts, washers, bolts, etc., necessary to complete the assembly have been placed in the parts bag.
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 few 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.
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.
OPERATION 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 performing any adjustments or repairs. We recommend standard safety glasses or a wide vision safety mask over spectacles. HOW TO USE YOUR LAWN MOWER 2. Pull out button on underside of drive control, then push it back in. 3. Operate mower to test drive speed.
OPERATION • Secure rear of discharge chute to lawn mower housing with knob. • Place rear handle of grass catcher on the crossbar of the lawn mower's lower handle as shown. • 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. • Mower is now ready for rear bagging operation. • To convert to mulching operation, remove grass catcher and discharge chute.
OPERATION TO EMPTY GRASS CATCHER (See Figs. 10 –11) CAUTION: DO NOT overfill engine with oil, or it will smoke heavily from the mufler on startup. 1. Open round door of discharge chute to move starter rope out and away from grass catcher. 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.
OPERATION MOWING TIPS 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 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. To avoid engine problems, the fuel system should be emptied before storage of 30 days or longer.
MAINTENANCE BEFORE EACH USE AFTER EACH USE EVERY 10 HOURS EVERY 25 HOURS OR SEASON EVERY 100 HOURS BEFORE STORAGE Check for Loose Fasteners Clean / Inspect Grass Catcher * Check Tires Check Drive Wheels *** Clean Lawn Mower **** Clean under Drive Cover *** Check Drive Belt / Pulleys *** 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 syste
MAINTENANCE • LAWN MOWER Always observe safety rules when performing any maintenance. TIRES • • Keep tires free of gasoline, oil, or insect control chemicals which can harm rubber. Avoid stumps, stones, deep ruts, sharp objects and other hazards that may cause tire damage. 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.
MAINTENANCE TO CHANGE ENGINE OIL (See Fig. 17) AIR FILTER 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.
SERVICE AND ADJUSTMENTS TO REMOVE DRIVE BELT (See Figs. 18–20) HOUSING HOLE 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. 18). CRANKSHAFT TAB BLADE ADAPTER HARDENED WASHER SCREWS DEBRIS SHIELD LOCKWASHER SCREW LAWN MOWER HOUSING BLADE BOLT TRAILING EDGE FIG. 20 7.
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 previously 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. Be sure the trailing edge of blade (opposite sharp edge) is up toward the engine as shown (See Fig. 20). 6.
STORAGE HANDLE (See Figs. 23 and 24) ENGINE 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 keeping.
TROUBLESHOOTING POINTS PROBLEM Does not start CAUSE 1. Dirty air filter. 2. Out of fuel. 3. Stale fuel. 4. 5. 6. 7. 8. 9. 10. 11. 12. Loss of power CORRECTION 1. Clean/replace air filter. 2. Fill fuel tank. 3. Empty fuel tank and refill tank with fresh, clean gasoline. Water in fuel. 4. Empty fuel tank and refill tank with fresh, clean gasoline. Spark plug wire is disconnected. 5. Connect wire to plug. Bad spark plug. 6. Replace spark plug. Loose blade or broken blade adapter. 7.
ROTARY LAWN MOWER - - MODEL NUMBER 55R21HV (55R21HVA) - PRODUCT NUMBER 954 22 32-10 18
ROTARY LAWN MOWER - - MODEL NUMBER 55R21HV (55R21HVA) - PRODUCT NUMBER 954 22 32-10 19 KEY NO. PART NO.
ROTARY LAWN MOWER - - MODEL NUMBER 55R21HV (55R21HVA) - PRODUCT NUMBER 954 22 32-10 20
ROTARY LAWN MOWER - - MODEL NUMBER 55R21HV (55R21HVA) - PRODUCT NUMBER 954 22 32-10 21 KEY NO. PART NO.
ROTARY LAWN MOWER - - MODEL NUMBER 55R21HV (55R21HVA) PRODUCT NUMBER 954 22 32-10 GEAR CASE ASSEMBLY - - PART NUMBER 532 18 36-99 KEY NO. PART NO. DESCRIPTION 1 2 3 4 5 6 7 8 9 10 11 12 13 14 -- 817 54 10-11 532 16 06-72 532 05 70-72 532 18 39-08 532 16 08-18 532 07 78-81 532 16 08-17 532 85 08-48 532 18 41-34 532 16 06-79 532 16 06-73 532 05 70-79 812 00 00-39 532 08 64-47 532 75 03-69 Screw, Tapping #10-24 x .
SERVICE NOTES 23
The product must exhibit reasonable care, maintenance, operation, storage and general upkeep as written in the maintenance section of the Owner’s/Operator’s manual. Should an operational problem or failure occur, the product should not be used, but delivered as is to an authorized Husqvarna dealer for evaluation. Proof of purchase, as explained in section 6, rests solely with the customer.