Quantcast Disassembly - TM-9-1240-311-340016

 

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Installation - TM-9-1240-311-340015
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TM-9-1240-311-34 Telescope Articulated: M127 (1240-437-1254) and M127A1 (M127E1) (1240-148-8539) and Hanger Assembly (1240-906-79451) Manual
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Repair of Deflection or Elevation Boresight Control Assembly and Replacement of Housing Window
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

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