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 173 of 344

TM 9-1240-400-34&P

5-10.

MAINTENANCE OF COVER ASSEMBLY

This task covers:

a.

Disassembly

c.

Repair

b.

Cleaning

d.

Reassembly

INITIAL SETUP:

Tools and Special Tools

Tool kit, electronic: system maintenance

(SC 5180-95-CL-B29)

Tubular spanner wrench, 11/1 6 and

45/64 (7597638)

Materials/Parts

Felt strip (2) (8261867)

Lockwasher (4) (MS35333-69)

Lockwasher (2) (MS35333-70)

Sealant adhesive (item 5, appx C)

Sealing compound (item 10, appx C)

Solder (item 12, appx C)

Soldering flux (item 6, appx C)

References

TM 9-254

TM 750-116

Equipment Conditions

5-10 Cover assembly removed from M137

telescope mount assembly

General Safety Instructions

Use adhesives, cleaning solvents,

and

sealing compounds in well-ventilated

area away from open flame.

Adhesives,

cleaning

solvents,

and

sealing

compounds are harmful to skin and

clothing, can burn easily, and may give

off harmful vapor.

DISASSEMBLY

1

Remove two screws (1) and protective dust cap

(2) from cover (3).

2

Remove four screws (4), four lockwashers (5),

and identification plates (6 and 7) from cover (3).

3

Pull wire with lamp base through to the front of

the electronic component (8).

4

Using tubular spanner wrench, unscrew ring (9)

and remove electronic component (8) from cover

(3).

5

Unsolder electrical lead (10) from electrical

contact (11), and remove electrical lead (10) and

lens cap (12) from cover (3).

5-19