Walker H24d Operator's Manual

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Maintenance Instructions CHECKING/SERVICING62WARNINGDO NOT try to straighten a blade that isbent. NEVER weld a broken or crackedblade. ALWAYS replace with a new bladeto assure safety.4. If the blade cutting edge is dull or nicked, itshould be sharpened. Remove blades forsharpening by grasping the end of the blade using a rag or a thick, padded glove, while loosening and removing the bolt and washer thatmounts the blade.5. Grind cutting edge at the same bevel as theoriginal. Sharpen only the top of the cuttingedge to maintain sharpness.NOTE: Blades can be sharpened with an electric blade sharpener, conventional electric grinder, or a hand file.CAUTIONALWAYS wear eye protection and gloveswhen sharpening a blade.Sharpen at Original30° AngleIntersectionWear AreaDo Not Grind orSharpen on Underside30° Wing TipMower Blade Profile for Sharpening6. Check blade balance by positioning the bladehorizontally on a blade balancer or use a nailor shaft through the center hole. If either end ofthe blade rotates downward, grind (remove)metal on that end until the blade will balance.The blade is properly balanced when neitherend drops. Balance of a blade is generallymain tained by removing an equal amount ofmaterial from each end of the blade whensharpening.Blade BalancerBlade Balanced on MagneticWall-Mounted Balancer7. Mount the blade with wing tips pointing up intothe housing. For gear driven decks reinstallthe blade, washer, lock washer, and nut. Tight-en the nut to 60 lb·ft (81 N·m). For belt drivendecks reinstall the spacer (if applicable), blade,washer, and bolt. Tighten the bolt to 70 lb·ft(95 N·m).Drive BeltsRaise the body and inspect the condition of the four(4) drive belts after every 25 hours of operation–engine/PTO drive (3), ground drive (1). Also, remove the belt cover on the mower deck and checkthe blade drive belt. If the belts show signs ofcracking or deteriorating, the belts should be re-placed. Refer to REPLACING/REPAIRING theDrive Belts in this section.Fuel Lines and ClampsEvery year, inspect the fuel supply lines from thetank(s) to engine for deterioration or damage. Also,inspect the fuel line clamps for tightness. Goodpreventive maintenance calls for complete replace-ment of fuel lines and clamps every two (2) years.NOTE: This procedure is of special importance forthe diesel engine due to poor performance when airis injected with the fuel.Radiator Hoses and ClampsInspect the radiator hoses every 200 hours for deterioration or damage. Also check the tightness ofthe hose clamps. Good preventive maintenancecalls for complete replacement of the radiatorhoses and clamps every two (2) years.