TM 9-1240-401-34&P
Procedures
Item To Be Inspected
Item No.
Inspect M145/M145A1 telescope mount (1) for good overall
1
M145/145A1 TELESCOPE
appearance with all parts securely tightened in place.
MOUNT
Inspect mounting surfaces (2) for burrs and corrosion; must be
2
MOUNTING SURFACES
free of burrs and corrosion.
Inspect decal and identification plate (3) for legibility; must be
3
DECAL AND lDENTl-
legible and clearly defined.
CATION PLATE
Rotate cross-level mechanism knob (4). Cross-level mecha-
4
CROSS-LEVEL MECHANISN
nism knob must turn smoothly with 3 to 6 pound-inches (0.339
KNOB
to 0.678 Nm) running torque. Backlash must not exceed 1.0
mil at 0 setting. Rotation of cross-level mechanism knob must
move telescope socket 10 to right and 10 to left without
binding.
Check that pitch level (5) bubble and cross-level (6)
PITCH LEVEL AND
5,6
bubble are centered within one graduation for each vial.
CROSS-LEVEL
Check LEDS (7 and 8) to ensure light is sufficient to clearly
7, 8
LEDS
define marking on level vials.
Operate mount through 1383 mils elevation and minus 50
9
ELEVATION COUNTER
roils depression. The elevation counter (9) must be accurate
within 0.5 mil as read on gunner's quadrant.
4-4