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16 se c t i O n 7— se r v i c e
Carefully tilt and support the unit up to provide access 7.
underneath to the nozzle mounting hardware and impeller.
Remove the three shoulder bolts securing the black plastic
lower flail housing to the lower housing. Refer to Fig. 7-4.
Tilt top of black plastic lower flail housing toward the engine to 8.
remove.
Using a 3/16” allen wrench, remove the flat head cap screws that 9.
hold the chipper blade to the impeller. These screws are
accessible through the opening created when the chipper
chute was removed earlier. See Fig. 7-5.
The nuts on the flat head cap screws can be reached from 10.
underneath using a 1/2-inch socket, universal, and
extension. See Fig. 7-6.
Replace or sharpen chipper blade. The blade can be sharpened 11.
with a file or on a grinding wheel.
The chipper blade is sharp. When
sharpening blade, wear leather work gloves to
protect your hands and follow the original angle of
grind.
Reassemble by performing the previous steps in the opposite 12.
order and manner of removal.
NOTE: Tighten blade screws to 210 - 250 in-lbs. Make
certain chipper blade is reassembled with the sharp edge
facing upward.
Off-Season Storage
When storing the chipper/shredder vacuum in an •
unventilated or metal storage shed, care should be taken
to rustproof the non-painted surfaces. Using a light oil
or silicone, coat the equipment, especially any springs,
bearings, and cables.
Remove all dirt from exterior of engine and equipment.•
Follow lubrication recommendations.•
Refer to engine maintenance section for correct engine •
storage instructions.
Store equipment in a clean, dry area. Do not store in an •
area where equipment is present that may use a pilot light
or has a component that can create a spark.