TM-9-1240-400-34-P

TELESCOPE; PANORAMIC: M115, ELBOW: M139, MOUNT: M138 AND M137

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL

OCTOBER 1993

TM-9-1240-400-34-P - Page 111 of 344

TM 9-1240-400-34&P

3-9.

MAINTENANCE OF RETICLE CELL ASSEMBLY.

This task covers:

a.

Disassembly

c.

Repair

b.

Cleaning

d.

Reassembly

INITIAL SETUP:

Tools and Special Tools

General Safety Instructions

Tool kit, electronic: system maintenance

(SC 5180-95-CL-B29 )

Materials/Parts

Sealing compound (item 10, appx C)

Use adhesives, cleaning solvents,

and sealing compounds in well-

References

ventilated area away from open

TM 9-254

flame Adhesives, cleaning sol-

TM 750-116

vents, and sealing compounds are

harmful to skin and clothing, can

Equipment Conditions

burn easily, and may give off harm-

3-7

Reticle assembly removed

ful vapor.

DISASSEMBLY

1

Scribe a line on cell (1) parallel to horizontal line

in reticle (2) crosshair.

Remove sealing

compound from slots in externally threaded ring

(3).

2

Remove externally threaded ring (3).

3

Press reticle (2) out of cell (1).

CLEANING

Clean all parts per TM 9-254.

REPAIR

Repair is by replacement of authorized parts as required.

Refer to appendix B.

3-15

WARNING