Craftsman 247.77003 Operator's Manual

Contents

18SERVICE AND MAINTENANCE6. Remove hex screw on top of rear housing near mounting bracket and theflange lock nut that secures flail screen. See Figure 24.7. Remove and clean the screen by scraping or washing with water. See Figure25 below.8. Reinstall the screen.WARNINGBefore performing any type of maintenance on the machine, wait forall parts to stop moving and disconnect and ground the spark plug wire.Failure to follow this instruction could result in personal injury or propertydamage.Sharpening Or Replacing Chipper BladeNOTE: Before tipping the unit, empty the fuel tank by running engine until tank isdry, and empty the oil reservoir as described in To Drain Oil.1. Disconnect and ground the spark plug wire.2. Remove bag assembly or blower chute.3. Remove the three hex cap screws holding the chipper chute to the upperhousing. See Figure 26.4. Remove the front hubcaps, flange lock nuts, front wheels, and wave washersthat attach to the pivot arm assemblies. See Figure 27.5. Remove the shoulder screws, thrust washers, and bell washers that gothrough the pivot arms to the front support brace. The front support braceand lock nut can be removed at this time as well.6. Remove the four screws on the upper housing that secure the nozzle cover.See Figure 28.Figure 25Figure 26Hub CapThrust WasherBell WasherPivot Arm AssemblyFront Support Brace and Lock NutShoulder ScrewLock Nut WheelWaveWasherFigure 27Figure 28