ARMY TM 9-1240-379-34
MARINE CORPS TM 04332A-34
3-4. OPTICAL CELL ASSEMBLYMAINTENANCE INSTRUCTIONS.
THIS TASK COVERS:
Reassembly
a.
Disassembly
b.
Inspection/cleaning/repair
c.
INITIAL SETUP
Tools and Special Tools
References
Instrument and fire control shop equip-
T M 9-254
ment {SC 4931-95-CL-A07)
TM 9-1240-379-34P
Instrument and fire control system repair
T M 750-116
shop equipment (SC 4931-95-CL-A09)
Equipment Conditions
Materials/Parts
Preformed packing (8289239)
assembly
Sealing compound (item 16, app B)
DISASSEMBLY
1 Remove two setscrews (1) and dial
pointer (2) from optical element cell (3).
2 Remove three setscrews (4) and diopter
scale (5) from optical element cell (3).
3 Remove setscrew (6) and round plain nut
(7).
4 Unscrew and remove optical retaining
ring (8) from adapter (9).
5 Remove stop (10) from adapter (9).
6 Remove optical element cell (3) from
adapter (9).
7 Remove preformed packing (11) from
ring groove inside adapter (9) and
discard.