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 143 of 590

TM 9-1240-401-34&P

11

12

Repeat steps 9 and 10 as necessary

vial at 0 and 1330 roils.

to level the

Hold the inner portion of the fabricated eccentric

tool firmly in place while turning the outer portion of

the fabricated eccentric tool to tighten threaded

ring (26). Be careful not to disturb the setting of

level (29).

4-17. COUNTER BOX ASSEMBLY (KNOB) MAINTENANCE INSTRUCTIONS

I

This task covers:

a. Disassembly b. Repair c. Assembly

ITIAL SET-UP

Tools

Tool Kit, Electronic System, Repair, Field Mainte-

TM 9-254

nance(SC5180-95-CL-B29)

5180-01-168-0487

t Condit ions

. .

I

aterials/Parts

M145/M145A1 telescope mount installed on how-

Oil, lubricating (Item 9, appx B)

itzer

I

a. Disassembly

1 Remove tapered pin(1), elevation handwheel (2),

and flat washer (3).

2 Drive out headless straight pin (4) and remove cor-

rection knob (5).

3 Remove setscrew (6) and plug (7).

4 Drive out headless straight pin (8).

5 Remove collar (9) and shouldered shaft (10).

4-29