ARMY TM 9-1240-379-34
MARINE CORPS TM 04332A-34
2-5. INFRARED BODY ASSEMBLYMAINTENANCE INSTRUCTIONS. (CONT)
DISASSEMBLY (cont)
18
Loosen and remove four machine
screws (24) and four Iockwashers (25).
19
Remove deflection boresight knob
assembly (26) from infrared body as-
sembly (5).
20
Remove preformed packing (27) and
discard.
21
Loosen and remove four machine
screws (28) and four Iockwashers (29)
22
Remove elevation boresight knob as-
sembly (30) from infrared body assem-
bly (5).
23
Remove preformed packing (31) and
discard.
Remove six machine screws (32) and
24
six Iockwashers (33).
Remove cover assembly (34); remove
25
assembled Iampholder plug (35) from
cover assembly.
lNSPECTION/CLEANING/REPAIR
Inspect converter regulator, pinned
1
Inspect eyepiece assembly for chips,
4
cracks, or damage that may interfere
sleeve, and solid power supply for
with the operation of the tank
evidence of corrosion.
periscope. Inspect for damaged threads.
If defective, forward to next higher
5
Inspect pneumatic valve cap and
level of maintenance and obtain a new
purging valve stem for damaged threads
eyepiece assembly.
and distortion.
Inspect valve cap strap for tears and/or
2
Inspect electron tube for chips, cracks,
6
or damage that may interfere with
distortion.
operation of the tank periscope.
7
Inspect valve core for corrosion and
3
Inspect cap assembly for evidence of
cracks and damaged threads.
2-30
