TM 9-1240-400-34&P
14
Pull wire with lamp base through to the front of
the overlay assembly (37).
15
Remove externally threaded ring (38) from
adapter (4) using tubular spanner wrench.
16
Remove overlay assembly (37), electrical lead
(39), and light lens (40).
17
Remove two screws (41), two lockwashers (42),
and rotating counter (43) from adapter (4).
18
Remove rod (44), cover (45), and helical torsion
spring (46).
19
Remove mechanical post (47), detent plunger
(48), and spring (49).
20
Remove screw (50), lockwasher (51), retaining
strap (52), and light conductor (53).
21
Remove setscrew (54) and setscrew (55).
22
Remove observation window (56) by pressing
gently from backside of adapter (4).
23
Remove observation window (57), index (58),
and mask (59) by pressing gently from backside
of adapter (4).
CLEANING
Clean all parts per TM 9-254.
REPAIR
Repair is by replacement of authorized parts as required.
Refer to appendix B.
2-45
