4-37. FLYWHEEL MAINTENANCE INSTRUCTIONS - Continued
W A R N I N G
P-D-680, Type Ill, is moderately toxic to
the skin, eyes and respiratory tract;
avoid prolonged exposure. Skin and
eye protection is required. Good ventila-
tion is required. Do not use near open
flame or excessive heat. Flash point is
200° F (93.3° C).
Clean the flywheel with dry cleaning solvent and
Inspect the flywheel (1) for cracks or other dam-
If flywheel (1) requires replacement, remove the
flywheel fan (Para. 4-38).
If flywheel fan was removed, install the fan (Para.
Ensure that the end of the crankshaft is free of
grease and oil.
Install key (2) into key slot of crankshaft.
Carefully install the flywheel (1) onto the crank-
shaft, aligning the key slot with install key (2).
Seat the flywheel as squarely as possible onto
Install clutch (Para. 4-26).
Follow-on tasks include: Install v-belt
(Para. 4-25), Install v-belt cover (Para. 4-