ARMY TM 9-1240-379-34
MARINE CORPS TM 04332A-34
8
Check numerical engraving on elevation
10 Replace any damaged, missing, or
broken parts. See TM 9-1240-379-
and deflection knob assemblies slip
scales for legibility.
34P.
9
Clean optical surfaces in accordance
with TM 9-254.
REASSEMBLY
1 Install assembled lampholder plug (1) in
grooved recess of elevation boresight
cover assembly (2).
knob assembly (6).
2 Install cover assembly (2) and secure
5 Hold
elevation boresight knob assembly
with six lockwashers (3) and six
(6)
against infrared body assembly (7)
and
turn knob so that adjuster blade (8)
machine screws (4).
just
touches reticle housing.
3 Apply a light coat of grease to new
NOTE
preformed packing (5).
If adjuster blade (8) extends
too far, the spring tension of
NOTE
the reticle will force the eleva-
The main difference between
tion boresight knob assembly
the elevation and deflection
outward.
boresight knob assemblies is
the way that the numbers
6 Install four machine screws (9),
face. See illustration above.
assembled with four lockwashers (10),
and tighten.
4 Install new preformed packing (5) into
2-31
