TM-9-1240-400-34-P

TELESCOPE; PANORAMIC: M115, ELBOW: M139, MOUNT: M138 AND M137

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL

OCTOBER 1993

TM-9-1240-400-34-P - Page 209 of 344

TM 9-1240-400-34&P

MOUNTING M137 TELESCOPE MOUNT ON CROSS-LEVELING FIXTURE

1

Install telescope mount (1) on adapter keys (2) of test fixture adapter (3).

2

Install four capscrews (4) and four lockwashers (5) and tighten evenly.

3

Check that cross-leveling fixture (6) is level.

Re-level

as required.

4

Level the top surface of the upper telescope mount

subassembly using parallel bar (7) and precision

level (8) positioned against locating pins (9).

Surface

should be horizontal within 0.5 mil.

Use cross-level

knob (10) to level M137 telescope mount.

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