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 279 of 590

TM 9-1240-401-34&P

32

Insert shouldered shaft (37) into housing (10) from

rear of housing. Aline hole in shouldered shaft with

cutout in base of housing.

33

Install and tighten three screws (38) and three new

lockwashers (39).

34

35

Install pin (40) in shouldered shaft (37), if removed.

Install electrical lead (41) into shaft by threading wire

of electrical lead into externally threaded opening of

shaft and out small hole that is alined with cutout in

housing (10).

36

Secure electrical lead (41) into shaft with setscrew

(42). Setscrew must not protrude from surface of

shaft.

37

Solder wire of electrical lead (41) to center post of

toggle switch (43) using solder (item 18, appx B) and

flux (item 5, appx B).

38

39

Install two machine screws (44) in gear sector (45).

Apply grease (item 6, appx B) to shaft and install flat

washer (46), gear sector (45), flat washer (47), and

nut (48).

40

Using tubular spanner wrench 1-1/16 and 1-5/64

inch, tighten nut (48) and secure with two setscrews

(49).

41

Apply grease (item 6, appx B) to plunger (50) and

spring (51).

42

Install plunger (50) and spring (51) into housing (10)

and secure with plug (52).

43

Position bracket (53) on housing (10).

NOTE

If shouldered shaft was removed from

housing, perform steps 32 thru 34. If

shouldered shaft was not removed, go to step

35.

Change 1

5.1-45