Removing Flywheel; Checking Woodruff Key For Flywheel - Bosch PB-650 Service Manual

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8-6 Removing flywheel

(A)
(C)
(D)

8-7 Checking woodruff key for flywheel

ENGINE
1. Remove fan case with engine block from back-
pack frame (refer to 6-2 "Removing backpack
frame").
2. Remove spark plug and engine cover.
3. Insert piston stopper 897537-30130 in the spark
plug hole by hand.
4. Loosen four bolts of fan (A).
5. Remove remaining five bolts (B) and throttle wire
bracket (C) on crankcase
(B)
6. Separate engine block from fan case.
7. Remove nut securing flywheel to crankshaft.
NOTE: Do not pry flywheel from crankshaft. Dam-
age will result to crankshaft, flywheel or other main
parts of engine.
8. Install puller 897501-03938 (D) on flywheel.
9. Tighten two nuts on stud alternately with even
strength to remove flywheel.
10. Remove piston stopper.
1. Check Woodruff key (A) on crankshaft if defec-
tive. Replace as required .
2. When installing woodruff key on crankshaft, set
the key in parallel with center line of crankshaft.
(A)
PB-650
PB-750