TM-9-1240-401-34-P

TELESCOPE MOUNT M146: M118A2 AND M118A3; TELESCOPE MOUNT M145: M145A1; PANORAMIC TELESCOPE: M117 AND M117A2; FIRE CONTROL QUADRANT: M15; PERISCOPE: M42

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL

JULY 1993

TM-9-1240-401-34-P - Page 190 of 590

TM 9-1240-401-34&P

5-14. LAMP ASSEMBLY AND RELATED PARTS (M117) MAINTENANCE INSTRUCTIONS

- continued

a. Removal/Disassembly

I

2

3

4

5

6

7

8

9

10

11

1

Remove machine screw (1), Iockwasher (2), and

electrical connector cover

(3).

Discard Iockwasher.

Remove LED (4).

Remove four machine

(6).

screws

(5)

and access cover

Remove machine screw (7), Iockwasher (8), ma-

chine screw (9), and three lug terminals (10) with

wires (11) attached. Discard Iockwasher.

Unsolder wires (11 ) from three lug terminals (10).

Remove machine screw (12) and housing (13).

Using 11/16 and 45/64 inch tubular spanner

wrench, remove threaded ring (14).

Remove electrical lead (15) with wire and lug ter-

minal (16) attached.

Remove four machine screws (17), four lock-

washers (18), and holder (19). Discard lock-

washers.

Remove and discard preformed packing (20).

Remove lens (21) only if damaged.

NOTE

Remove second lamp assembly by repeating

steps 1 and

2,

then 7 thru 11.

5-16