ARMY TM 9-1240-379-34
MARINE CORPS TM 04332A-34
2-6. OPTICAL CELL ASSEMBLY-MAINTENANCE INSTRUCTIONS. (cont)
1 Check machine screws for worn or
4 Replace any damaged, broken, or miss-
damaged threads. Clean dirt and grime
ing parts. See TM 9-1240-379-34P.
from all threads.
2 Inspect helical spring for breaks.
with TM 9-254.
1 If removed, install screw thread inserts
( 1 ) . Refer to TM 9-254.
2 Assemble machine key (2) to body
assembly bracket (3) and secure with
m a c h i n e screw (4).
3 Position assembled machine key and
body assembly bracket on optical cell
assembly (5) and secure with two
m a c h i n e screws (6).
4 Install helical spring (7) and detent
plunger (8) in machine key (2); secure
w i t h retaining ring (9).
5 After maintenance is completed, purge
and charge in accordance with TM