Troy-Bilt 70 - Manual (Page 17)

17
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 lower flail housing to the
lower housing. Refer to Figure 5-8.
Tilt top of black plastic lower flail housing toward the
engine to remove.
Using a 3/16” allen wrench, remove the flat head cap
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 Figure 5-9.
The nuts on the flat head cap screws can be
reached from underneath using a 1/2-inch socket,
universal, and extension. See Figure 5-10.
Replace or sharpen chipper blade. The blade can be
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.
12. Reassemble by performing the previous steps in the
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 equip-
ment.
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.
7.
8.
9.
10.
11.
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Maintaining
Your
Chipper
Shredder
Vacuum
Figure 5-8
Figure 5-9
Figure 5-10
Flat Head Cap Screws
Chipper Blade
Nuts
Impeller
Black Plastic
Nozzle
Shoulder Screws
The chipper blade is
sharp. When sharp-
ening blade, wear
leather work gloves
to protect your hands
and follow the origi-
nal angle of grind.
WARNING