SERVICE AND MAINTENANCE
7
.
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 19.
8
.
.
Tilt top of black plastic lower flail housing toward the engine to
remove.
Black Plastic
Nozzle
9
Using a 3/16” allen wrench, remove the flat head cap screws that
hold the chipper blade to the impeller. These screws are acces-
sible through the opening created when the chipper chute was
removed earlier. See Figure 20.
1
0. The nuts on the flat head cap screws can be reached from
underneath using a 1/2-inch socket, universal, and extension.
See Figure 21.
1
1
1
1. Replace or sharpen chipper blade. The blade can be sharpened
with a file or on a grinding wheel.
2. When sharpening blade, protect hands by using gloves and follow
the original angle of grind.
Shoulder Screws
3. Reassemble by performing the previous steps in the opposite
order and manner of removal.
Figure 19
NOTE: Tighten blade screws to 210 - 250 in-lbs. Make certain chipper
blade is reassembled with the sharp edge facing upward.
Flat Head Cap Screws
Chipper Blade
Figure 20
Impeller
Nuts
Figure 21
0
| Categories | Blower Vacuum and Sweeper Manuals, Craftsman Blower and Vacuum Manuals, Craftsman Lawn Mower Manuals, Lawn Mower Manual |
|---|---|
| Tags | Craftsman 247.770120 |
| Download File |
|
| Document Type | Operator's Manual |
| Language | English |
| Product Brand | Craftsman. Customer Service Representatives are available by phone: Canada 1-888-225-4886 USA 1-888-384-9939, Lawn Mower |
| Document File Type | |
| Publisher | craftsman.com |
| Wikipedia's Page | Craftsman (tools) |
| Copyright | Attribution Non-commercial |
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