ARMY TM 9-1240-379-34
MARINE CORPS TM 04332A-34
2-5. INFRARED BODY ASSEMBLYMAINTENANCE INSTRUCTIONS. (cont)
e . Install spring (12) and screw (11);
tighten screw (11).
a. Remove screw (11) and spring (12).
f. Turn know (13) clockwise to its
limit. Loosen screw (11) and rotate
b. Remove knob (13) with scale at-
diopter scale to read +4.0. Tighten
tached. Do not remove scale.
c. Set stop (14) against right-hand
g. Turn knob (13) counterclockwise to
side of pin (15) in clutch (16).
its limit. The diopter scale should
read -4.0. If it does not read -4.0,
d . Install knob (13) so that pin is as
loosen screw (11) and turn diopter
close as possible against left-hand
scale so that 0 is midpoint of the
side of stop (14).
knob rotation. Tighten screw (11).