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 297 of 590

TM 9-1240-401-34&P

16

Position M15 quadrant (13) on test fixture adapter

(6), and secure with four cap screws (14).

17

Install knob on shaft of M15 quadrant cross-level

worm gear.

b. VISUAL INSPECTION

1

Check that all screws and lockwashers are present

and tight.

2

Check that all mounting surfaces are clean and free

of burrs.

3

Check that M15 quadrant is free of dirt, corrosion,

and foreign matter.

4

Check that M15 quadrant paint is not chipped.

5

Check that all M15 quadrant parts are present.

6

Check for broken, frayed, or deteriorated insulation

on extension light.

Change 1

5.1-63