Cooling SystemMaintenanceCleaning the Engine CoolingAreasClean the rotating screen, cooling fins, and externalsurfaces of the engine every 100 operating hours ormore often under extremely dusty and dirty conditions.Important: Operating the engine with a blockedrotating screen, dirty or plugged cooling fins, orcooling shrouds removed will cause engine damagedue to overheating.Important: Never clean the engine withpressurized water because water could contaminatethe fuel system.Brake MaintenanceInspecting the BrakesBrakes are a critical safety component of the vehicle.As with all safety components, they should be closelyinspected at regular intervals to ensure optimumperformance and safety. The following inspectionsshould be done every 100 hours:• Inspect the brake shoes for wear or damage. If thelining (brake pad) thickness is less than 1/16 inch(1.6 mm), the brake shoes should be replaced.• Inspect the backing plate and other componentsfor signs of excessive wear or deformation. If anydeformation is found, the appropriate componentsmust be replaced.• Check the brake fluid level; refer to Checking theBrake Fluid Level.Checking the Brake FluidLevelThe brake fluid reservoir is filled and shipped from thefactory with DOT 3 brake fluid. Check the level beforethe engine is first started and every 8 hours or daily,thereafter.1. Park the machine on a level surface, set the parkingbrake, turn the ignition off, and remove the key.2. Look at the side of the reservoir. The level shouldbe above the Minimum line (Figure 50). If the fluidlevel is low, clean the area around the cap, removethe cap, and fill the reservoir to above the Minimumline. Do not overfill.Figure 501. Brake fluid reservoir 2. Minimum lineAdjusting the Parking BrakeCheck the parking brake adjustment every 200 hours.1. Pry the rubber cover off of the parking brake.38