NOTE:
REMOVE ITEMS 10 THROUGH 22 FROM SHAFT AS AN ASSEMBLY, THEN DISASSEMBLE.
1
Tie wire
20
Pin (4 rqr)
2
Screw (8 rqr)
21
Clutch lever (4 rqr)
3
Washer (8 rqr)
22
Drive screw (3 rqr)
4
Internal gear
23
Nut (2 rqr)
5
Nut
24
Bolt (2 rqr)
6
Lockwasher
25
Bearing
7
Tube
26
Pin
8
Fitting
27
Adjusting lock
9
Nut
28
Retaining ring (2 rqr)
10
Housing
29
Pin (2 rqr)
11
Friction lining
30
Ring (2 rqr)
12
Pressure plate
31
Pin (2 rqr)
13
Retaining ring (4 rqr)
32
Link (8 rqr)
14
Ring
33
Sleeve
15
Screw
34
Capscrew (2 rqr)
16
Washer
35
Lockwasher (2 rqr)
17
Spring
36
Shaft
18
Spring (4 rqr)
37
Key (2 rqr)
19
Ring (4 rqr)
38
Fork
Figure 3-5. Power take-off unit and clutch, exploded view (sheet 1 of 2).
Section IV. ENGINE GOVERNOR
b. Removal and Installation. Remove or install stall
3-8. General
the overspeed governor on engine model 687C-18-ES
(TM 5-3810-201-12).
Engine model 687C-18-ES is controlled by an overspeed
c. Disassembly.
governor (para 3-9) and a fly weight governor integral
(1) Remove weight stop ring (1, fig. 3-6), fiat
with fuel injection pump (para 3-17). The governor used
washer (2), and outer oil seal (3) from governor base (4).
to control engine model D333TA is described in
(2) Remove two screws (37) and lockwashers
(36), from body (40).
(3) Remove governor base (4) from body
3-9. Overspeed Governor for Engine Model 687C-1 -
(40).
ES
(4) Remove washer (7), gasket (6), and
sleeve bearing (5) from base (4).
a. General. The overspeed governor is driven by
(5) Remove spider and shaft (11) from body
the tachometer drive, and is located at front end of the
(40).
camshaft. This governor actuates the shutdown lever of
(6) Remove clips (8) and weight pins (9)
the fuel injection pump through a microswitch controlled
circuit. See the wiring diagram in TM 5-3810-201-12.
3-9
