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 124 of 344

TM 9-1240-400-34&P

3-12.

FINAL INSPECTION INSTRUCTIONS (CONT).

RETICLE PLUMB/COLLIMATION INSPECTION AND ADJUSTMENT (CONT)

20

Install setscrews (7) and (10).

Apply sealing compound (item 10, appx C) over top of setscrews (7) and (10).

21

Install adapter (13) with slot over windows.

22

Install lockwasher (14) and machine screw (15).

23

Install purging screw (16).

24

Install eyeshield adapter (17) and eyeshield (18).

25

Apply sealing compound (item 10, appx C) over tops of all setscrews.

ILLUMINATION INSPECTION

1

Position adapter (1) on M36 instrument light (2)

in adapter (3) of M139 elbow telescope (4).

2

Turn on M36 instrument light switch (5).

3

Take into dark area and look through eyeshield

(6).

Reticle (7) should be illuminated.

PURGING AND CHARGING

Purge and charge M139 elbow telescope.

Refer to TM 750-116.

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