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 148 of 590

TM 9-1240-401-34&P

4-19. M145/M145A1 TELESCOPE MOUNT MAINTENANCE INSTRUCTIONS - continued

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c. Assembly

1 Apply grease to bearing (28).

2 Mount bearing (28), flat washer (27), and new self-

Iocking nut (26) on wormshaft (25).

3 Install wormshaft (25) and related parts in the

mount.

4 Install one flat washer (24) and spring (23).

5 Install second flat washer (24) into externally

threaded nut (22).

6 Apply grease to externally threaded nut (22) and

install using adjustable spanner wrench.

7 Install bevel gear (21) using tapered pin (20).

8 Apply sealing compound to the threads of setscrew

(19) and install.

9 Apply grease to V-bearing (18).

10 Apply sealing compound to threads of plug (16).

Install V-bearing (18), spring (17), and plug (16) in

mount.

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4-34