User manual HUSQVARNA 55 R 21 HV

[. . . ] 55R21HV Owner’s Manual 532 40 10-35 11. 11. 05 BY Printed in U. S. A. 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. Look for this symbol to point out important safety precautions. 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. [. . . ] Be sure fuel valve is in the ON position. Hold operator presence control bar down to the handle and pull starter handle quickly. NOTE: The choke lever automatically begins moving to the OFF position when operator presence control bar is held down to handle. OFF CHOKE LEVER • • The special mulching blade will recut the grass clippings 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 biodegrade 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. 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. 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. If the lawn is overgrown 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 ON ( ) OFF ON FIG. 12 • Certain types 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. 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. • FUEL VALVE LEVER FIG. 11 9 MAINTENANCE BEFORE EACH USE 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 system or add Stabilizer AFTER EACH USE EVERY 10 HOURS EVERY 25 HOURS OR SEASON EVERY 100 HOURS BEFORE STORAGE * (if so equipped) ** Electric-Start mowers *** Power-Propelled mowers **** Use a scraper deck to clean under 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. 5 - And after each 5 hours of use. GENERAL RECOMMENDATIONS The warranty on this lawn mower does not cover items that have been subjected to operator abuse or negligence. To receive full value from the warranty, operator must maintain mower as instructed in this manual. Some adjustments will need to be made periodically to properly maintain your unit. [. . . ] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 21 22 23 24 25 26 27 PART NO. 532 19 70-12 532 19 57-61 532 18 73-53 532 19 00-37 532 19 57-62 532 18 16-98 532 40 07-23 532 18 62-97 532 19 70-11 532 19 05-65 532 19 41-88 812 00 00-12 532 19 41-86 532 18 71-20 532 18 82-94 532 19 41-24 532 19 61-91 532 16 34-09 532 19 41-28 532 13 20-04 532 19 37-91 532 18 81-52 532 14 52-12 873 93 05-00 532 19 65-42 532 16 60-43 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 Bearing / Axle Support Gear Case Assembly (See Breakdown) Spring, Return Bracket, Gear Case / Drive Pulley Screw Pulley, Drive Nut, Hex Pulley Assembly, V-Groove O-Ring Nut, Hex, Flangelock Nut, Hex, Lock Idler Arm Pulley, Idler KEY NO. 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 46 47 48 49 50 51 52 53 54 55 69 PART NO. 532 16 08-29 817 06 04-10 532 18 34-57 532 08 83-48 532 19 26-19 532 08 39-23 532 18 36-95 532 18 59-94 532 18 82-91 532 17 50-98 812 00 00-58 532 17 51-03 532 17 51-05 532 17 51-04 532 18 41-72 532 19 05-20 532 19 05-18 532 19 22-30 532 18 34-38 532 16 96-75 532 19 64-69 532 18 36-88 532 18 83-31 532 17 51-02 532 19 59-95 532 18 83-30 532 18 90-74 532 75 10-68 DESCRIPTION Bolt, Hex Head, Shoulder Screw 1/4-20 x 1/16 Cover, Dust, Wheel Washer, Flat 3/8 Wheel Assembly, Rear 9 x 2-1/4 Nut, Hex Hubcap Knob Spring, Torsion Pawl E-Ring Gear Retainer, Drive, LH Disc, Drive Seal, Friction Lever, Selector, Wheel Height, Rear Lever, Selector, Wheel Height, Front 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 Bearing, Ball (Wheel) 21 NOTE: All component dimensions given in U. S. [. . . ]