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 TM 5-2420-224-34
CRANKSHAFT, MAIN BEARINGS, AND REAR SEALS REPLACEMENT
(CONT)
NOTE
Tag counterweights prior to
removal to aid in installation.
Perform step 7 only with engine
s e r i a l numbers under 941675.
REMOVE 12 bolts (19) and 6
7.
COUNTERWEIGHTS (20).
REMOVE bearing (21) and COVER (22).
8.
U S I N G PULLER, REMOVE GEAR (23),
9.
intermediate piece (24), and key (25).
1.
Inspect crankshaft for pitting, gouges, and scratches. If any of these conditions exist, tag crankshaft for
repair and install new crankshaft.
Inspect crankshaft for cracks. If crankshaft is cracked, reject crankshaft assembly.
2.
Make all journal measurements listed in following table. If any measurements are not within any stage
3.
listed, tag crankshaft assembly for repair and install new crankshaft assembly. If any journal
measurement is less than lowest dimension in stage IV, reject crankshaft assembly.
Make all other measurements in table. If any measurement is lower than minimum shown, reject
4.
crankshaft assembly.
13-17
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