Troy-Bilt 24A-070F766 User Manual

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Remove self-tapping screw on right side of unit that 
attaches to the fail screen. See Figure 16.
Figure 16
Remove hex screw on top of rear housing near 
mounting bracket and the flange lock nut that 
secures flail screen. See Figure 14.
Remove and clean the screen by scraping or 
washing with water. Reinstall the flail screen.
Sharpening Or Replacing Chipper Blade
NOTE:  When tipping the unit, empty the oil and fuel
tank and keep engine spark plug side up.
Disconnect and ground the spark plug wire to 
retaining post.
 
Remove hose assembly and bag assembly.
Remove the three bolts holding the hose hanger 
bracket and chipper chute to the upper housing. 
See Figure 16.
Remove the flange lock nuts, front wheels, and 
wave washers that attach to the pivot arm 
assemblies. See Figure 17.
Figure 17
Remove the shoulder screws, thrust washers, and 
bell washers that go through the pivot arms to the 
front support brace. The front support brace and 
lock nut can be removed at this time as well.
Remove the four screws on the upper housing that 
secure the nozzle cover. See Figure 18.
Figure 18
Carefully tilt and support the unit up to provide 
access underneath to the nozzle mounting 
hardware and impeller. Remove the three shoulder 
bolts securing the black plastic nozzle to the lower 
housing. Refer to Figure 19.
Figure 19
Tilt top of black plastic nozzle toward the engine to 
remove.