ARMY TM 9-1240-379-34
MARINE CORPS TM 04332A-34
2-5. INFRARED BODY ASSEMBLY - MAINTENANCE INSTRUCTIONS. (cont)
REASSEMBLY
(cont)
12 Adjust deflection boresight knob
e. Install spring (23) and screw (22);
assembly (18):
tighten screw (22).
a. Remove screw (22) and spring (23).
f . Turn knob (24) clockwise to its
limit. Loosen screw (22) and rotate
b. Remove knob (24) with scale at-
diopter scale to read +4.0. Tighten
tached. Do not remove scale.
s c r e w (22).
c. Set stop (25) against right-hand of
g. Turn knob (24) counterclockwise to
pin (26) in clutch (27).
its limit. The diopter scale should
read -4.0. If it does not read -4.0,
d. Install knob (24) so that pin is as
loosen screw (22) and turn diopter
close as possible against left-hand
scale so that 0 is midpoint of the
side of stop (25).
knob rotation. Tighten screw (22).
2-34
