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 219 of 590

TM 9-1240-401-34&P

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Install mechanical housing (6) on adapter assembly

(10).

Rotate gear shaft (7) until pinhole alines with gear on

mechanical housing (6) and install headless straight

pin (5).

Install machine screw (8) and two machine screws

(9). Tighten machine screws evenly to prevent

binding.

Install light conductor (4) on adapter assembly (10)

and secure with retaining strap (3), machine screw

(1), and new lockwasher (2).

5-24. RESET COUNTER ASSEMBLY 7660419 MAINTENANCE INSTRUCTIONS

This task covers:

a. Disassembly

b. Repair

c. Assembly

INITIAL SET-UP

Tools

Equipment Condition

Tool Kit, Electronic System, Repair, Field Maintenance

M117/M117A2 panoramic telescope removed from

(SC5180-95-CL-B29) 5180-01-168-0487

howitzer (TM 9-2350-311-10/TM 9-2350-314-10)

References

Counter assembly removed from M117/M117A2

TM 9-254

panoramic telescope (ref. para 5-22)

Reset counter assembly removed from adapter

assembly (ref. para 5-23)

Change 1

5-45