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 285 of 590

TM 9-1240-401-34&P

7

Remove four screws (5), four lockwashers (6), four

flat washers (7), and rotating counter (2) from base

(4).

8

Drill spur gear (1) and shaft of rotating counter (2)

and install straight pin (9).

9

Position rotating counter (2) on base (4). Install but

do not tighten four screws (5), four lockwashers (6),

and four washers (7).

10

Aline holes of rotating counter (2) with holes in bass

(4). Install two straight pins (3) and tighten four

screws (5).

11

Remove setscrew temporarily installed in spur gear

(1) and apply grease (item 6, appx B) to spur gear

(1).

NOTE

If elevation counter is to be reinstalled,

perform steps 12 thru 14.

12

Aline holes of spur gear (1) to holes in shaft of

rotating counter (2) and install straight pin (9).

13

Apply grease (item 6, appx B) to spur gear (1) and

position rotating counter (2) over two straight pins

(3) on base (4).

14

Install four screws (5), four new lockwashers (6),

and four washers (7).

Change 1

5.1-51