ARMY TM 9-1240-379-34
MARINE CORPS TM 04332A-34
2-7. ELBOW ASSEMBLY-MAINTENANCE INSTRUCTIONS. (cont)
REASSEMBLY
1 Install new spring pin (1) and four new
5 Install new preformed packing (7) into
machine screws (2), if removed.
grooved recess of elevation boresight
knob assembly (8).
2 Install assembled lampholder plug (3) in
cover assembly (4).
6 Holding elevation boresight knob
assembly (8) against elbow assembly
3 Install cover assembly (4) and secure
(9), turn knob so that adjuster blade
(10) just touches reticle housing.
machine screws (6).
NOTE
4 Apply a light coat of grease to new
If adjuster blade (10) extends
preformed packing (7).
too far, the spring tension of
the reticle will force the eleva-
NOTE
tion boresight knob assembly
The main difference between
outward.
the elevation and deflection
boresight knob assemblies is
7 Install four machine screws (11),
the way that the numbers
face. See illustration above.
and tighten.
2-42