TM 5-3810-206-35
KEY to fig. 3-52:
30
Bearing
21
Bolt
11
Gear
1
Gear
31
Pin
22
Rear body
12
Gear
2
Bearing
32
Retainer
23
Bearing
13
3
Shaft
33
Bolt
24
Gear
14
Lock (2 rqr)
4
Dowel
34
Pin
25
pacer
15
Bolt
5
Front body
35
Shaft
26
Nut
16
Lock (2 rqr)
6
Lock
36
Key
27
Washer
17
Screw (2 rqr)
7
Bolt
37
Bearing
28
Pin
18
Cover
8
Tube
38
Gear
29
Gear
19
Spring
9
Adapter
20
Plunger
10
Shaft with gear
Figure 3-52. Oil pump or engine model D333TA, exploded view.
Section XIII. ENGINE FRONT COVER (MODEL 687C-18-ES)
and vibration damper.
3-47.
General
The front cover of engine model 687C-18-ES is an
3-48.
Engine Front Cover Support, and Vibration
aluminum casting mounted on front of crankcase. It
Damper (Model 687C-18-ES)
contains oil and water passages, and serves as a mount
a. Removal and Disassembly.
for the overspeed governor and fan drive. The front end
(1) Remove engine (para 2-9).
of the crankshaft is machined and extends through the
(2) Remove fan (TM 5-3810-206-12).
front cover oil seal to accommodate the fan drive sheave
3-63
