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 TM 55-1905-221-14-4
6-42. VIBRATION DAMPER, CRANKCASE FRONT COVER AND CRANKSHAFT PULLEY (Continued).
LOCATION/ITEM
ACTION
REMARKS
The vibration damper must be removed whenever the crankshaft, crankshaft front cover, or crankshaft front oil seal
is removed or replaced.
b. Crankcase Front Cover.
The crankshaft front cover is mounted against the end plate at the lower front end of the engine. It serves as a
housing for the vibration damper. The engine is supported at the front end by means of engine supports attached to the
front cover.
The crankshaft front cover needs no servicing except replacement of the front crankshaft oil seal, when such
becomes necessary.
It will be necessary to remove the crankshaft front cover to remove and install a crankshaft, or when engine is
overhauled.
c. Crankcase Pulley.
The crankshaft pulley is mounted over two Woodruff keys at the front of the crankshaft. A special washer and bolt
are used to secure the pulley to the crankshaft.
6-945
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