Craftsman 247.77012 Operator's Manual page 19

SHarPening Or rePLaCing CHiPPer
BLaDe
NOTE: When tipping the unit, empty the oil and fuel tank and keep
engine spark plug side up.
1. Disconnect and ground the spark plug wire to retaining post.
2. Remove bag assembly or blower chute.
3. Remove the three hex cap screws holding the chipper chute to
the upper housing. See Figure 16.
4. Remove the front hubcaps, flange lock nuts, front wheels, and
wave washers that attach to the pivot arm assemblies. See Figure
17.
5. 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.
6. Remove the three screws on the upper housing that secure the
nozzle cover. See Figure 18.
SERVICE AND MAINTENANCE
Front Support Brace and Lock Nut
Pivot Arm Assembly
Bell Washer
Thrust Washer
Shoulder Screw
Hub Cap
1
Figure 16
Wave
Washer
Lock Nut
Wheel
Figure 17
Figure 18