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 289 of 590

TM 9-1240-401-34&P

a. Disassembly

1

Drive out tapered pin (1) and remove spur gear (2).

2

Drive out two straight pins (3) from holes of bracket

(4), but not from base (5).

3

Remove two screws (6), two lockwashers (7), and

bracket (4) from base (5). Discard lockwashers.

4

Remove differential assembly (8) from base (5).

b. Repair

1

Remove corrosion, grease, and dirt from all parts.

Refer to TM 9-254 for cleaning instructions.

2

Visually inspect for missing or damaged parts.

3

Repair or replace parts in accordance with

authorized parts listed in appendix D.

Change 1

5.1-55