TM 9-1240-400-34&P
4-5. CATEGORIES OF INSPECTION (CONT).
Table 4-1. INITIAL INSPECTION-M138 TELESCOPE MOUNT
Item No.
Item To Be Inspected
Procedure
1
M138 Telescope Mount
Inspect for good overall appearance with all parts securely
tightened in place:
2
Mounting Surface
Inspect for cleanliness and freedom from nicks and burrs.
3
Identification Plate
Inspect for legibility.
4,5
Elevation Locking Lever
(1) With lever in locked position, a torque of 5.00 and Elevation
Worm Shaft
in.-lb (0.56 N-m) applied to worm will not change
alinement of M139 elbow telescope. (2) With lever released,
worm shall move socket 444.45 mils above and below center
position.
6
Eyebolt Assembly
Must lock and hold M139 elbow telescope or fabricated bushing.
4-2
