Valve and Cap
Inspect for damage such as bends or breaks and
ability to hold pressure; must not be bent or broken
and must hold pressure.
obstruct view through eyepiece; must be clean and
free of moisture.
Inspect by viewing through telescope to determine if
interfering fractures exist on window, lens, prisms or
reticle; chipped, scratched, or pitted optics that
interfere with field of view must be replaced with
Use torque wrench and torque adapter (8599917) to
rotate knob in each direction. Knob shall operate
within 4.00 to 8.00 in.-lb (0.45 to 0.90 N-m) of
Swing on pivot pin to determine freedom of move-
ment. Crank must not bind or show evidence of
excessive wear at pivot pin.
Rotate knob 360 degrees. Knob must snap into
detents at 180 degree intervals, and must produce
an audible click at each 5 mil excursion of deflection
knob when set in DIRECT fire position.