Husqvarna HU675AWD Owners Manual - Page 11

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. DRIVE WHEELS Check 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 or dust cover area and must be cleaned to free drive wheels. If necessary to clean the drive wheels, be sure to clean all wheels. 1. Remove hubcaps, locknuts and washers. 2. Remove wheels from wheel adjusters. 3. Remove any trash or grass cuttings from inside the dust cover, pinion and/or drive wheel gear teeth. 4. Put wheels back in place. NOTE: If after cleaning, the drive wheels do not turn freely, contact a qualified service center. 2. Install debris shield. 3. Position blade on the blade adapter. IMPORTANT: TO ENSURE PROPER ASSEMBLY, CENTER HOLE IN BLADE MUST ALIGN WITH STAR ON BLADE ADAPTER. 4. Be sure the trailing edge of blade (opposite sharp edge) is up toward the engine. 5. Install the blade bolt with the lock washer and hardened washer into blade adapter and crankshaft. 6. Use block of wood between blade and lawn mower housing and tighten the blade bolt, turning clockwise. • The recommended tightening torque is 35-40 ft. lbs. IMPORTANT: BLADE BOLT IS HEAT TREATED. IF BOLT NEEDS REPLACING, REPLACE ONLY WITH APPROVED BOLT. BELT RETAINER BLADE ADAPTER CRANKSHAFT KEYWAY KEY BLADE CARE For best results, mower blade must be kept sharp. Replace bent or damaged blades. CAUTION: Use only a replacement blade approved by the manufacturer of your mower. Using a blade not approved by the manufacturer of your mower is hazardous, could damage your mower and void your warranty. DEBRIS SHIELD BLADE TRAILING EDGE HARDENED WASHER LOCK WASHER BLADE BOLT TO REMOVE BLADE (See Fig. 12) 1. Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with 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 bolt. NOTE: Protect your hands with gloves and/or wrap blade with heavy cloth. FIG. 12 TO SHARPEN BLADE (See Fig. 13) NOTE: We do not recommend sharpening blade - but if you do, be sure the blade is balanced. An unbalanced blade will cause eventual damage to lawn mower or engine. • The blade can be sharpened with a file or on a grind- ing wheel. Do not attempt to sharpen while on the mower. 4. Remove blade bolt by turning counter-clockwise. 5. Remove blade and attaching hardware (bolt, lock washer and hardened washer). 6. Remove debris shield. NOTE: Remove the blade adapter and check the key inside hub of blade adapter. The key must be in good condition to work properly. Replace adapter if damaged. TO REPLACE BLADE (See Fig. 12) 1. Position the blade adapter on the engine crankshaft. Be sure key in adapter and crankshaft keyway are aligned; and that the drive belt is inside the tab of the belt retainer. 11 CENTER HOLE 5/8" BOLT OR PIN BLADE FIG. 13