TM 1-1520-238-23
Change 1
4-257
4.80.
NO. 2 ENGINE REGULATING VALVE REMOVAL/INSTALLATION – continued
4.80.3. 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 P40 (1) from engine regulat-
ing valve receptacle L4 (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 engine regu-
lating valve (10) and starter air tube (11).
(1) Remove nut (12) from coupling (9).
(2) Remove coupling (9).
f. Remove insert (13) or gasket (14) from tube
(11) and discard.
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), valve support (21), and starter
(16).
(2) Slide valve (10) clear of starter (16) and tube
(11).
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M04-1013-2
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M04-1013-3A
