Maintenance Instructions | CHECKING/SERVICING |
Blade Balancer
Blade Balanced on Magnetic
7.Mount the blade with wing tips pointing up into the housing. Reinstall the blade, washer, lock washer, and nut. Tighten the nut to 60
NOTE: When reinstalling blades on GHS models, remember, the blades turn toward each other
Drive Belts
Raise the body and inspect the condition of the five
(5)belts (4 belts on SD models) every 25 hours of operation - engine PTO drive, jackshaft drive, hydro- static ground drive, GHS blower drive, and engine fan belt. If the belts show signs of cracking or de- teriorating, the belts should be replaced. Refer to REPLACING/REPAIRING the Drive Belts in this section.
Mower Deck Gearbox Oil Seals
The mower deck gearbox seals should be inspected every 25 hours for evidence of oil leaking; particularly the lower oil seal on the blade drive gearbox. This seal is protected by the trash guard on the blade hub and seal protector plate on the housing, but is still vulnerable to seal damage due to operating in an adverse environment. The mower blade must be removed for inspection of the seal, so it is recommended to inspect the gearbox seals when blades are removed for sharpening. If an oil leak is noted, the seal should be replaced and the gearbox assembly relubricated. Refer to LUBRICATION for Mower Deck Gearbox Lubrication in this section.
Fuel Lines and Clamps
Every year, inspect the fuel supply line from the tank to engine for deterioration or damage. Also, inspect the fuel line clamps for tightness. Good preventive maintenance calls for complete replacement of fuel lines and clamps every two (2) years.
NOTE: This procedure is of special importance for the diesel engine due to poor performance when air is injected with the fuel.
Radiator Hoses and Clamps
Inspect the radiator hoses every 200 hours for deterioration or damage. Also check the tightness of the hose clamps. Good preventive maintenance calls for complete replacement of the radiator hoses and clamps every two (2) years.
Blade Brake Action
WARNING
It is important to check and maintain blade brake action for safe operation of the ma- chine.
Check the function of the cutter blade brake (and blower brake on GHS models) by engaging the blade clutch (PTO), operating the engine at full throt- tle, then disengaging the clutch and measuring how quickly the blades stop. Watch the rotation of the blade drive shaft and blower pulley as a visual indication that movement has stopped. If the brake is working properly, all rotation will stop five (5) seconds after disengagement of the clutch. If the brake system malfunctions - blades do not stop in five (5) seconds - adjust or repair the brake before operating the mower. Contact your Walker Dealer.
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