Item To Be Inspected
Inspect M145/M145A1 telescope mount (1) for good overall
appearance with all parts securely tightened in place.
Inspect mounting surfaces (2) for burrs and corrosion; must be
free of burrs and corrosion.
Inspect decal and identification plate (3) for legibility; must be
DECAL AND lDENTl-
legible and clearly defined.
Rotate cross-level mechanism knob (4). Cross-level mecha-
nism knob must turn smoothly with 3 to 6 pound-inches (0.339
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
Check that pitch level (5) bubble and cross-level (6)
PITCH LEVEL AND
bubble are centered within one graduation for each vial.
Check LEDS (7 and 8) to ensure light is sufficient to clearly
define marking on level vials.
Operate mount through 1383 mils elevation and minus 50
roils depression. The elevation counter (9) must be accurate
within 0.5 mil as read on gunner's quadrant.