3
FAN
FLYWHEEL
1
2
3
4
5
5
5
2
4
2
TM 9-4940-568-34
7-31
NOTE
Perform Step (4) if ring dowels
were removed.
(4)
Install two ring dowels (5) in one main
bearing cap (2).
(5)
Install the lower main bearings (4) in main
bearing cap (2). Apply a coat of lubricating
oil to the assembled lower main bearing.
(6)
Repeat Steps (4) and (5) for remaining main
bearing caps.
Crankshaft weighs 80 lbs (36 kg).
Attach a suitable lifting device
prior to removal to prevent
possible injury to personnel.
(7)
Attach lifting device to crankshaft (3).
(8)
With the aid of an assistant, install
crankshaft (3).
(9)
Remove lifting device from crankshaft (3).
Ensure caps are correctly
installed with number towards oil
cooler side of the engine.
(10)
Position five main bearing caps (2) with
lower main bearings (4) on crankshaft (3)
with ten screws (1).
(11)
Tighten the ten screws (1) to 37 lb-ft (50
N.m). Do not tighten to the final torque
value at this time.
(12)
Ensure crankshaft (3) rotates freely.
