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 98 of 344
TM 9-1240-400-34&P
3-5.
CATEGORIES OF INSPECTION (CONT).
c.
Table 3-1 lists initial inspection procedures for the M139 elbow telescope.
Final inspection procedures are
located on page 3-18.
d.
Preembarkation inspection procedures are located on page 3-29.
Table 3-1.
INITIAL INSPECTION-M139 ELBOW TELESCOPE
Item No.
Item To be Inspected
Procedure
1
M139 Elbow Telescope
Inspect for signs of mistreatment, such as dents,
scuff marks, bare spots, and missing parts Check
for collimation and foreign matter Refer to p 3-24.
2
Eyepiece Assembly
Check for moisture and foreign matter
Look for
broken, cracked, or chipped glass.
3
Reticle Cell Assembly
Check for moisture and foreign matter and that
reticle is illuminated when M36 instrument light is
attached.
4
Cover Assembly
Check that cover assembly is secure and plate is
legible.
5
Objective Cell Assembly
Check for moisture and foreign matter, and that
parallax does not exceed 0.1 mil at 125 meters.
6
Eyeshield
Check for cracks, splits, and rubber deterioration.
3-2
3-2
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