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17se 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 8.
engine to remove.
Using a 3/16” allen wrench, remove the flat head cap 9.
screws that 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.
Figure 7-4
Figure 7-5
Chipper
Blade
Flat Head
Cap Screws
The nuts on the flat head cap screws can be reached 10.
from underneath using a 1/2-inch socket, universal, and
extension. See Fig. 7-6.
Replace or sharpen chipper blade. The blade can be 11.
sharpened with a file or on a grinding wheel.
WARNING: 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 12.
opposite 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 manual 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.
Figure 7-6
Nuts
Impeller
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