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 gear cover (1, fig. 3-5), paying particular attention to the
carefully, if it does not come off readily, and remove
keyway plug (2).
location of the screws as each must be replaced in the
same hole.
b. Installation. Reverse the procedures in a. above.
(6) Remove the timing gear cover from the block.
(7) Remove the nut (7, fig. 3-1) from the
3-7. Timing Gear Cover, Camshaft Gear, and
camshaft (1).
Crankshaft Gear
(8) Using a suitable puller, remove timing gear (5)
a. Removal.
from the camshaft. Remove the key (6) from the
(1) Remove engine from truck (para 2-6a.).
camshaft. Remove two screws (3) and lock washers (4)
(2) Remove hydraulic pump from engine, (para
and remove camshaft thrust plate (2) from block.
Remove end plate (17, fig. 3-5) from block.
(3) Remove governor and linkage from engine,
(9) Using suitable puller, remove crankshaft gear
(3, fig. 3-4}, then remove gear key (41 and thrust plate
(4) Remove fan drive belt, (TM 10-3930-627-12)
(7) from crankshaft.
and crankshaft pulley, (para 3-6).
(5) Remove screws and washers from the timing
1.
Timing gear cover
14. Nut
2.
Screw
15. Lock washer
3.
Lock washer
16. Screw, assembled washer
4.
Screw
17. End plate
5.
Lock washer
18. Screw
6.
Screw
19. Lock washer
7.
Flat washer
20. Screw
8.
Screw, assembled washer
21. Lock washer
9.
Flat washer
22. Dowel ring
10.
Screw, assembled washer
23. Dowel ring
11.
Nut
24. Gasket
12.
Lock washer
25. Gasket
13.
Stud
26. Seal
Figure 3-5. Timing gear cover.
3-5
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