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 220 of 590

TM 9-1240-401-34&P

5-24. RESET COUNTER ASSEMBLY 7660419 MAINTENANCE INSTRUCTIONS - continued

a. Disassembly

NOTE

Depress and hold shaft (1) to permit removal

of headless straight pin (2).

1

Remove headless straight pin (2) and gear shaft (3).

2

Remove shaft (1).

3

Remove positive clutch half (4).

4

Remove spring (5).

5

Remove tapered pin (6) and spur gear (7).

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.

c. Assembly

1

Install spur gear (7) and tapered pin (6).

2

Install spring (5), positive clutch half (4), and shaft

(1).

3

Install gear shaft (3) and secure with headless

straight pin (2).

5-46