(2)
(3)
(4)
(5)
(6)
(7)
Partially secure connector mounting panel (3,
figure 8-6, sheet 2) to panel assembly with four
screws (4), one screw in center of each side.
Secure panel assembly to chassis with 14
screws (1, figure 8-6, sheet 1).
Install 16 screws (4, figure 8-6, sheet 2) to
complete securing of connector mounting
panel (3) to panel assembly.
Connect connector A4P1 (95, figure 8-6, sheet
3) to connector J19 (94) within chassis, and
tighten connector jackscrews.
Secure logic no, 3 electronic component as-
sembly A3 (45, figure 8-6, sheet 1) with six
screws (49) and washers (48).
Install SPU in instrument case (58) and secure
to panel assembly (2) with 20 screws (43) and
washers (44).
8-17. Panel Component Removal and Replacement.
Remove panel assembly (2, figure 8-6, sheet 1) as de-
scribed in paragraph 8-16a. After replacing applicable
component, replace panel assembly as described in
paragraph 8-16b. See figure 8-6, remove and replace
panel components as follows:
a. Air Outlet Adapter or Air Inlet Adapter. Remove
and replace air outlet adapter (37, figure 8-6, sheet 2) or
air inlet adapter (30) as follows:
(1) Removal.
(a) Remove three screws (12), washers (10), and
lockwashers (11) securing cover (9) to spac-
ers (8); remove cover.
(b) Remove three screws (7) and washers (6)
securing air outlet adapter (37) to panel
assembly (2, figure 8-6, sheet 1); remove air
outlet adapter.
(2) Replacement.
(a) Install air outlet adapter (37, figure 8-6,
sheet 2) and secure to panel assembly (2,
figure 8-6, sheet 1) with three washers (6)
and screws ‘(7).
(b) Install cover (9) and secure with three lock-
washers (11), washers (10), and screws (12).
b. Fuseholder XF1, XF2, XF3, XF4, or XF5. Re-
move and replace fuseholder XFl (19, figure 8-6, sheet
2) as follows:
(1) Removal.
(a) Tag and unsolder wires to fuseholder XF1
(19).
(b) Remove nut (20) securing fuseholder XF1
(19) to panel assembly (2, figure 8-6, sheet
1); remove fuseholder.
ARMY TM 5-6675-238-14
MARINE CORPS TM 08839A-14/1
(2) Replacement.
(a) Install fuseholder XF1 (19, figure 8-6, sheet
2) and secure to panel assembly (2, figure
8-6, sheet 1) with nut (20, figure 8-6, sheet
2).
(b) Solder wires to fiseholder XF1 (19).
c. Lighted Pushbutton Switch Assembly S1, S3,
DS2, DS3, DS5, DS9, DS12, DS13, DS14, DS15, or
DS16. Remove and replace lighted pushbutton assembly
DS2 (25, figure 8-6, sheet 2) as follows:
(1) Removal.
(a)
(b)
(c)
(d)
Remove seal (21) by pulling away from DS2
housing.
Using fingernail slots, pull out lens assembly
(22) to the limit of its travel. Rotate lens
assembly 90 degrees.
Push lens assembly in to release tension on
index keys; then pull lens assembly and
lamp board (23) out of DS2 housing.
Release two captive mounting screws (26)
securing DS2 switch assembly cover (29).
Remove cover from rear of panel assembly
(2, figure 8-6, sheet 1). Remove lighted
pushbutton switch assembly DS2 from front
of panel assembly.
(2) Replacement.
NOTE
If new switch is to be installed, perform
steps (a) and (b), otherwise proceed to
step (c).
(a)
(b)
(c)
(d)
(e)
(f)
Remove lens assembly (22, figure 8-6, sheet
2) and lamp board (23) from lighted push-
button switch assembly DS2 (25) by per-
forming steps (b) and (c) of removal proce-
dure in substep 8-17c(1).
Rotate two captive mounting screws (26) to
drive two mounting screw nuts (27) to rear
limit of their travel range. Remove DS2
switch assembly cover (29).
Insert main body of lighted pushbutton
switch assembly DS2 (25) from front of
panel assembly (2, figure 8-6, sheet 1).
Place cover (29, figure 8-6, sheet 2) on DS2
(25) from rear of panel assembly.
Tighten two screws (26) securing cover (29)
to DS2 (25).
Install lamp board (23) and lens assembly
(22), aligning slot in lamp board with index
8-87
