ARMY TM 5-6675-238-14
MARINE CORPS TM 08839A-14/1
Legend for figure 8-6 - Continued
103. Clamp
117. Washer
104. Washer
118. LockWasher
105. Screw
119. Screw
106. Screw
120. Modular power supply PS1
107. LockWasher
121. Screw
108. Washer
122. Washer
109. Power supply assembly
123. Washer
110. Modular power supply PS3
124. LockWasher
111. Clamp
125. Screw
112. Clamp
126. Connector A2P2
113. Clamp
127. Connector J23
114. Clamp
128. Connector J22
115. Cable
129. Connector A2P1
116. Overvoltage protector Z2
(1)
(2)
(3)
(4)
Install lamp (24) in lamp board (23), from the
rear.
Install lamp board and lens assembly (22),
aligning index slot in lamp board with index in
lighted pushbutton switch assembly DS2 (25).
Rotate lens assembly (22) 90 degrees until lens
assembly index slot is at top. Push lens assem-
bly into switch assembly to secure in place.
Install seal (21), covering front of switch as-
sembly.
8-15. Instrument Case Removal and Replacement. See
figure 8-6 and remove and replace instrument case (58,
figure 8-6, sheet 1) as follows:
a .
b .
Removal. Press pressure relief valve (55) on
bottom of instrument case; then remove 20
screws (43) and washers (44) securing instrument
case (58) to panel assembly (2). Remove SPU
from instrument case.
Replacement. Install SPU in instrument case (58)
and secure to panel assembly (2) with 20 screws
(43) and washers (44).
NOTE
For ease of working on the SPU, and to
prevent damage to a logic electronic
component assembly, it is recommended
that the logic electronic component as-
sembly be removed near the area where
the work is performed.
8-16. Panel Assembly Removal and Replacement.
Panel assembly is removed to gain access to subassem-
blies, components, and wiring. See figure 8-6 and re-
move and replace panel assembly (2, figure 8-6, sheet 1)
as follows:
a. Removal.
(1) Press pressure relief valve (55) on bottom of
instrument case; then remove 20 screws (43)
(2)
(3)
(4)
(5)
(6)
(7)
and washers (44) securing instrument case (58)
to panel assembly (2). Remove SPU from in-
strument case.
Place unit on its right side.
Remove six screws (49) and washers (48) and
swing logic no. 3 electronic component assem-
bly A3 (45) away from chassis (62).
Loosen jackscrews and disconnect connector
A4P1 (95, figure 8-6, sheet 3) from connector
J19 (94).
Place unit on its back.
Remove 20 screws (4, figure 8-6, sheet 2)
securing connector mounting panel (3) to
panel assembly (2, figure 8-6, sheet 1).
Remove 14 screws (1) and carefully move
panel assembly a few inches away from chassis
(62). Remove panel assembly (2) from chassis.
(Connector assembly is not removed.)
b. Replacement.
(1) Carefully position panel assembly (2) in front
(
of chassis 62).
8-86