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 TM 55-1905-223-24-5
REPLACEMENT
a. Install the crankshaft gear on the crankshaft.
(1) Use a leather hammer to install the key in the crankshaft keyway.
(2) Heat the gear in an oven for a minimum of 1 hour at 400 (205 ).
F
C
WARNING
Wear protective gloves when handling parts that have been
heated to prevent personal injury.
(3) Remove the gear from the oven.
NOTE
The gear must be installed within 30 seconds after being
removed from the oven.
CAUTION
The timing mark and the gear part number must be facing
away from the crankshaft.
(4) Align the gear keyway and the key, and install the gear firmly on the crankshaft.
CAUTION
It will be necessary to align the timing marks of the crankshaft
and the camshaft gears when the crankshaft is installed.
b. Install the crankshaft:
CAUTION
Be careful not to damage the surface of the crankshaft.
(1) Lift the crankshaft into position using a hoist and lifting strap.
(2) Install bearing shells, main bearings and caps.
c. Install the bearings, shells, and caps as follows:
4-91
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