Install guide

ARMY TM 5-6675-308-34
MARINE CORPS TM 08837A-34/2
Legend for Figure 3-6
1. Power supply
8. IMU mount
2. Captive screw
9. IMU
3. Captive screw
10. Bolt assembly
4. CDU
11. Guide pin
5. Computer
12. Computer mounting base
6. Computer power supply
13. Mounting base frame
7. Plumb bob arm
(f) Swing plumb bob arm (7) up to stowed
position.
(g) See figure 3-1 and connect cables to IMU as
1. Connect cable assembly W3 connector
W2P1 to IMU connector 2J1.
2. Connect cable assembly W4 connector
W4P1 to IMU connector 2J3.
3. Connect cable assembly W5 connector
W5P1 to IMU connector 2J4.
4. Connect cable assembly W5 connector
W5P3 to IMU connector 2J5.
d. Power Supply. Remove and replace power sup-
ply (1, figure 3-6) as follows:
(1) Removal.
(a) See figure 3-1 and disconnect cables from
power supply as follows:
1. Disconnect cable assembly W6 connector
W6P1 from power supply connector 3J2.
2. Disconnect cable assembly W211 connec-
tor W21lP1 from power supply connec-
tor 3J4.
3. Disconnect cable assembly W3 connector
W3P1 from power supply connector 3J5.
4. Disconnect cable assembly W4 connector
W4P2 from power supply connector 3J3.
5. Disconnect cable assembly W5 connector
W5P2 from power supply connector 3J1.
(b) Loosen’ four captive screws (2, figure 3-6)
securing
)
ower supply (1) to mounting base
frame (13 . Remove power supply (l).
(2) Replacement.
(a) Place ower supply (1) in mounting base
(
frame 13). Align mounting holes.
(b) Engage and tighten four captive screws (2)
secuirng
)
ower supply (1) to mounting base
frame (13 .
(c) See figure 3-1 and connect cables to power
supply as follows:
1. Connect cable assembly W3 connector
W3P1 to power supply connector 3J5.
2. Connect cable assembly W4 connector
W4P2 to power supply connector 3J3.
3. Connect cable assembly W5 connector
W5P2 to power supply connector 3J1.
4. Connect cable assembly W211 connector
W21lP1 to power supply connector 3J4.
5. Connect cable assembly W6 connector
W6P1 to power supply connector 3J2.
3-14. Gasket Replacement. Gaskets on the IMU cover,
porro prism cover, computer top cover, computer/
computer power supply, computer power supply end
plate, circuit breaker covers, and power supply bottom
cover and side cover are replaced using the same
general procedure.
a. Peel old gasket from mounting surface.
b. Carefully scrape off old adhesive from mounting
surface. Do not remove the metal protective
finish by sanding, etc.
c. Clean-the mounting surface by wiping with iso-
propyl alcohol and a lint-free cloth.
Isopropyl alcohol is flammable and gives
off harmful vapors. Use only in well venti-
lated area away from open flames and
sparks. Avoid prolonged or repeated inha-
lation of vapors.
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