Section VIII. REPAIR OF CABLE ASSEMBLIES

TM 9-1240-369-34

(4) Remove three screws (92), three lock-

(3) Install new reticle lamp (102) into its slot

washers (93). three washers (94), and video amplifier

and perform steps (1) and (2) in reverse order.

A76A7 (95).

(4) Install optical bench assembly as

instructed in paragraph 3-12 b).

(5) Install new video amplifier by performing

p. Removal and Installation of R/T Unit Shipping

steps (1) thru (4) in reverse order. Seal screw (90) with

sealant. MIIL-S-22473.

Cover see fig.3-6).

(6) Install optical bench assembly as

(1) Remove four screws. (103) and four

instructed in paragraph 3-12 b.

washers (104).

m. Replacement of Fill Valve (see fig. 3-6).

(2) Remove shipping cover (105).

(1) Remove cal, (96) from fill valve stem (97)

(3) Install shipping cover by performing steps

(2) Remove fill valve stem (97) from main

(1) and (2) in reverse order.

housing assembly (106).

(3) Remove fill valve core (98) and strap (99)

3-13. Inspection of Receiver-Transmitter Unit (A76).

from stem (97).

a. Inspect the general condition of all parts. Check

(4) Install new fill valve by performing steps

for wear or other conditions indicating deterioration.

(1) and (3) in reverse order. Before installing, seal

b. Inspect all circuit cards and all modules for

threads of stem (97) using sealing compound, MIL-S-

corrosion; check all screws for worn threads, check all

11030.

seals for deterioration, and check all machined surfaces

n. Replacement of Relief Valve (see fig. 3-6).

for conditions that may prevent alinement with mating

(1) Remove relief valve (100) from ballistic

parts. Check all gears, shafts, and bearings for free

(cover assembly (5).

operation.

(2) Install new relief valve (100). Before

c. Check electrical wiring for chafed or broken

installing, seal threads of relief valve (100) with sealant,

wires and bad solder connections.

MIL-S-22473.

d. Check all optical elements for cleanliness and

o. Replacement of Reticle Lamps (see fig. 3-6).

freedom from surface scratches.

(1) Remove optical bench assembly as

e. Inspect machined sealing surfaces for scratches.

described in paragraph 3-12 b.

debris or excessive lubricant that may prevent proper

(2) Turn the contacts (101) to one side from

sealing.

their pivotal point and pull faulty reticle lamp (102) out of

its slot.

Section VIII. REPAIR OF CABLE ASSEMBLIES

a. Inspect the general condition of all parts. Check

3-14. General.

for wear or other conditions indicating deterioration.

The system cable assemblies W50 through W54 are

Check connectors for bent pins and presence or o-ring

replaced at organizational level and are to be sent

inside connector around base of pins.

directly to depot for any maintenance. The

only

b. Check electrical wiring for chafed or broken

exception is to cable assembly W50. The terminal lugs

wires and bad solder connections.

may be replaced at GS level maintenance. No special

c. Install cable assembly W50 in hot mock-up and

instructions are required for the replacement of the

perform BIT (para 4-2a).

terminal lugs. Any other repair of interconnecting cable

W50 will be performed at depot.

3-15. Inspection of Cable Assembly W50.

3-25