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 TM 9-1240-375-34&P
0106 00
TEST AND INSPECTION - Continued
NOTE
If the M138/M138A1 telescope being inspected fails to meet the required standards,
ensure all maintenance authorized at the applicable level has been performed
correctly. Then send the M138/M138A1 elbow telescope to the next level of
maintenance.
Illustrations show the M138 telescope but also apply to the M138A1 telescope.
Visual Inspection
1
2
1
1 fc 7 5 7
1.
Check that all screws and lockwashers are present and tight.
2.
Check that mounting surfaces (1) are clean and free of nicks and burrs.
3.
Check that M138/M138A1 elbow telescope (2) is free of dirt, rust, and foreign matter; paint is not
chipped; and all parts are present.
Eyepiece Focus Inspection
2
4
1
3
1 fc 7 5 8
1 fc 7 5 9
1.
Place M138/M138A1 elbow telescope (1) on flat surface (2).
2.
Place M138/M138A1 elbow telescope lens (3) close to any light-colored surface (4).
0106 00-2
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