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 203 of 590

TM 9-1240-401-34&P

NOTE

Steps 5 thru 8 refer to the Ml 17 panoramic

telescope only.

5 Install contact assembly (17), cap (16), and head-

less straight pin (15), only if removed.

6 Solder wire (22) to grooved pin (21) using solder

and flux.

7 Install bushing insulator (20) and grooved pin (21)

with wire (22) attached. Secure with retaining ring

(19).

8 Install cap (1 8). Apply adhesive to seal wire (22)

into groove in upper housing (12).

9 Mount self-alining bearing (36) and spacer ring (35)

on worm shaft (26). Secure with new self-locking

nut (34).

10 Install setscrew (33) in self-locking nut (34). Apply

sealing compound to setscrew (33).

11 Apply grease (item 6, appx B) to flat washers (31

and 32).

12 Install fiat washer (32), spring (30), and flat washer

(31) on worm shaft (26).

13 Apply grease (item 7, appx B) to new preformed

packing (37) and install in threaded ring (25).

14 Install threaded ring (25) on worm shaft (26).

15 Install gear (29) on worm shaft (26) and secure

with tapered pin (28).

5-29