TM 1-1520-238-23
4-253
4.79.
NO. 1 ENGINE REGULATING VALVE REMOVAL/INSTALLATION – continued
4.79.3. Removal
a. Enter pilot station (para 1.56). Observe all
safety precautions.
b. On pilot forward circuit breaker panel, open
ENG START circuit breaker.
c. Detach connector P39 (1) from engine regulat-
ing valve receptacle L3 (2).
(1) Remove lockwire.
d. Remove wire harness support clamps (3) and
(4) from engine regulating valve tube (5).
(1) Remove nut (6) and washer (7) from screw
(8).
(2) Remove screw (8) from clamps (3) and (4).
e. Remove lower coupling (9) from regulating
valve (10) and starter air tube (11).
(1) Remove nut (12) from coupling (9).
(2) Remove coupling (9).
f. Remove and discard insert (13) or gasket (14)
from tube (11).
g. Remove upper coupling (15) from regulating
valve (10) and starter (16).
(1) Remove nut (17) from coupling (15).
(2) Remove coupling (15).
h. Remove regulating valve (10) from starter
(16).
(1) Remove bolt (18) and washer (19) from
clamp (20), regulating valve support (21), and
starter (16).
(2) Slide valve (10) clear of starter (16) and tube
(11).
GO TO NEXT PAGE
10
14
11
12
6
4
3
5
8
7
1
2
9
13
M04-1011-2
M04-1011-3
16
17
15
10
20
21
11
19
18
