Disassembly - TM-9-1240-311-340016

or lamp assembly (fig. 3-9), check for rust or corrosion.

3-10.

Replacement of Reticle Lamps and Ground

(2) Inspect ground strap; check for rust or

Strap (Figs. 3-6 and 3-9)

corrosion. Check soldered connections of terminals.

(3) Inspect contact assembly; check for rust

a. Disassembly.

or corrosion.

(1) Twist to remove lampholder assembly (3.

(4) Inspect the mirror, if mirror is glass check

fig. 3-6) with lamp attached. Push in and twist to remove

if broken, cracked, or chipped. If mirror is metal, clean

lamp (1).

reflecting surface.

(2) Unlock and open cover (fig. 3-9). Push in

(5) Inspect plate and hardware; check for rust,

and twist lamp (1) to remove from lamp assembly.

worn, burred, or broken threads.

(3) Detach hardware, items(2, 4 and 5, fig. 3-

6), and remove strap (6).

c. Repair. Repair is limited to replacement of all

(4) Remove screw (7, fig. 3-6), and washer

items inspected in b above.

(8). Pull contact assembly (9) out as far as possible from

the support.

d. Assembly..

(5) Unsolder wire from contact and remove

(1) Apply sealing compound, MIL-S-11031, to

the assembly.

the inner flange of plate (12, fig. 3-6 or 3, fig. 3-9).

(6) Remove setscrew (10, fig. 3-6) and pull

(2) Press mirror (13, fig. 3-6 or 4, fig. 3-9) into

support (14) from housing.

the plate opening with polished surface facing up. Wipe

(7) Remove screws (11, fig. 3-6 or 2, fig. 3-9)

off excess sealing compound.

securing plate with mirror attached to support. Lift plate

(3) Position plate, with mirror installed, on the

to remove.

respective support. Apply sealing compound, MIL-S-

(8) Press mirror (13, fig. 3-6 or 4, fig. 3-9)

11031, to threads of screws (11, fig. 3-6 or 2, fig. 3-9)

from plate (12, fig. 3-6 or 3, fig. 3-9).

and secure the plate.

b. Inspection.

(1) Inspect lampholder assembly (3, fig. 3-6)

1- Lamp, sgl cont, 28V, 8624583

6 - Strap, ground, 10549759

11 - Screw, 2-56 1/4, (S),

2- Screw, 4-40 x 5/8, MS51957-18

7 - Screw, 4-40 x 1/4, MS51957-13

MS51959-3

3- Lampholder assembly, 10549783

8 - Washer, lock, No. 4, MS35333-70

12 - Plate, 8624587

4- Screw, 6 32 x 3/8, MS51957-28

9 - Contact assembly, 10549780

13 - Mirror, 11727579

5- Washer, lock No. 6, MS35333-71

10 - Setscrew, 6-32 x 3/16, (2),

14 - Support, 8624527

MS51029-17

Figure 3-6. Conventional reticle lampholder assembly-partial exploded view.

3-8