Husqvarna 6021P Owners Manual - Page 12
Lawn Mower, Engine, Tires, Blade Care, Caution, Important, Grass Catcher, Lubrication - will not start
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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. 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. TO REMOVE BLADE 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. 4. Remove blade bolt by turning counter- clockwise. 5. Remove blade and attaching hardware (bolt, lock washer and hardened washer). TO REPLACE BLADE 1. Position blade on the blade adapter aligning the two (2) holes in the blade with the raised lugs on the adapter. 2. Be sure the trailing edge of blade (oppo- site sharp edge) is up toward the engine. 3. Install the blade bolt with the lock washer and hardened washer into blade adapter and crankshaft. 4. 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. Blade adapter Key Crankshaft keyway Lockwasher Blade IMPORTANT: Blade bolt is heat treated. If bolt needs replacing, replace only with approved bolt shown in the Repair Parts section of this manual. TO SHARPEN BLADE NOTE: We do not recommend sharpening the 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 grinding wheel. Do not attempt to sharpen while on the mower. • 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 • The grass catcher may be hosed with water, but must be dry when used. • Check your grass catcher often for damage or deterioration. Through normal use it will wear. If catcher needs replacing, replace only with approved replacement catcher shown in the Repair Parts section of this manual. Give the lawn mower model number when ordering. ENGINE LUBRICATION Use only high quality detergent oil rated with API service classification SJ-SL. Select the oil's SAE viscosity grade according to your expected operating temperature. 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. Blade bolt Hardened washer Trailing edge TO CHANGE ENGINE OIL NOTE: Before tipping lawn mower to drain oil, empty fuel tank by running enCrankshaft 12gine until fuel tank is empty.