ARMY TM 5-6675-308-34
MARINE CORPS TM 08837A-34/2
Legend for Figure 4-17
Screw
21.
Connector PI
2. Lockwasher
22.
Connector 4J1
3. Washer
23.
Screw
4. Relay K1
24.
Screw
5. Diode CR1
25.
Bezel
6. Display logic circuit card assembly Al
26.
Fault indicator DS2
7. Display logic circuit card assembly A2
27.
Washer
8, Keyboard and control circuit card assembly A3
28.
Nut
9. Control display unit holder
29.
Screw
10. Screw
Washer
30.
11. Washer
31.
Control and display panel
12. Control and display unit cover
Gasket
32.
13. Audible alarm DS3
Fiber washer
33.
14. Audible alarm gasket
Fiber washer
34.
15. Nut
35.
Screw
16. Terminal lug
Flexible harness assembly
36.
17. Screw
37.
Display unit DS1
18. Washer
38.
Screw
Nut
Washer
39.
20. JacksCrew
6.
Install connector 4J1 (22) in D-hole pro-
vided in control and display unit cover (12)
5. Unscrew audible alarm DS3 (13) from
and secure with nut (1 5). Apply sealing com-
control and display unit cover (12).
pound (MIL-S-22373, Grade C) to threads of
nut. Torque nut 65 to 75 inch-pounds. Check
6.
Remove audible alarm gasket (14) from
electrical bonding between nut and cover
control and display unit cover (12).
with an ohmmeter. Resistance should be
5 milliohms maximum.
7.
Remove nut (15) securing connector 4J1
(22) to control and display unit cover (12).
7. Inspect gasket (32). Replace if cracked,
tom, loose, or excessively compressed.
8. Remove control and display unit cover
(12).
8.
Position control and display panel (31)
against control and display unit cover
(b) Replacement.
(12). Torque 16 screws 29 and washers
(3) securing control and display panel (31)
1.
Install screw (17) securing terminal lug
to control and display unit cover (12) 5
(16) to control and display unit cover (12).
inch-pounds using procedures described
2. Secure wiring harness (36) to control and
dis lay unit cover (12) with two screws
(2) Relay K1. Remove and replace relay K1 (4,
(35) and four fiber washers (33 and 34).
figure 4-17) as follows:
3. Install audible alarm gasket (14) in audi-
(a) Removal.
ble alarm mounting hole in control and
1.
Remove 16 screws (29) and washers (30)
display unit cover (12).
securing control and display panel (31) to
4. Screw audible alarm DS3 (13) in mount-
control and display unit cover (12). Se a-
ing bole in control display unit cover (12).
rate control and display unit cover (12)
and control and display anel (31) to per-
5.
Prepare and solder two tagged wires that
mit access to relay K1 (4 ).
connect audible alarm DS3 (14) to termin-
nals ( + lead to E15, - lead to E14).
2.
Remove two screws (l), lockwashers (2),
Clean solder joint to remove flux.
and washers (3) securing relay K1 (4) to
4-142
Change 5
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