Craftsman 247.770990 Operator's Manual page 18

Hex Cap ............ "
, Screws
f
............. "_FrontSupport Brace and Lock NUi ....
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SHARPENING OR REPLACING
CHIPPER BLADE
NOTE:Whentippingthe unit, emptythe oil and fuel tankand keep
enginespark plug side up.
1. Disconnect and ground the spark plugwire to retaining post.
2. Removehoseassemblyand bag assembly.
3. Removethe threehexcap screwsholdingthe hosehangerbracket
and chipperchuteto the upper housing.See Figure22.
4. Removethe front hubcaps,flangelock nuts,frontwheels,and wave
washersthat attachto the pivotarmassemblies.See Figure23.
5. Removethe shoulderscrews,thrustwashers,and bellwashers
that go throughthe pivotarms to the front supportbrace.The front
supportbraceand lock nutcan be removedat this time as well.
6. Removethe fourscrewson the upperhousingthat securethe
nozzlecover.See Figure24.
Pivot Arm
Bell Washer
Thrust Washer
Shoulder Screw
%_*.r
Wave
Washer
Hub Ca[
LockNut
Figure 23
Wheel
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f
Nozzle Screws
Figure 24
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18