TM 5-1940-277-34
CRANKSHAFT INSPECTION AND REPLACEMENT INSTRUCTIONS (Continued)
LOCATION
ITEM
ACTION
REMARKS
c.
Remove.
4.
Main bearing
a.
Intermediate
Mark for iden-
Assists in cor-
caps (15, 16, 17
main bearing
tification and
rect reassembly.
and 18)
caps (16)
position.
b.
14 bolts
Remove bolts and
Use 7/8 in soc-
(19), 7 main
bearing caps in
ket, 6 in exten-
bearing caps
turn.
sion and ratchet.
(15 thru 18)
and 7 main
bearings (20).
c.
Thrust
Remove.
washers (21)
5.
Crankshaft (22)
Crankshaft (22),
a.
Lift out of
gear (23) and
block.
key (24)
b.
Remove gear
Use gear puller.
(23).
c.
Remove key
(24).
INSPECTION
6.
Crankshaft (22)
a.
Center
a.
Inspect for:
bearing jour-
Grooving and
nal thrust
Discoloration.
surfaces (25)
b.
Replace shaft
Severe damage may
if grooved or
indicate a bent
discolored.
shaft.
3-61
