TM 9-1240-400-34&P
2-13.
MAINTENANCE OF OPTICAL INSTRUMENT WORM ASSEMBLY, OPTICAL INSTRU- MENT COLLECTIVE
CELL ASSEMBLY, OPTICAL INSTRUMENT OBJECTIVE CELL ASSEMBLY, AND RETICLE ASSEMBLY
(CONT).
REMOVAL/DISASSEMBL Y (CONT)
NOTE
Measure distance between top of gear
to cell assembly lens and record for
reassembly.
3
Remove setscrew (7). Remove cell assembly (8)
from gear (3) using fabricated spanner wrench (item
7, appx D).
NOTE
Step 4 is written and illustrated for
disassembly of cell assembly (8587296).
4
Remove retainer (9) and lens (10) from optical
element cell (11) using tubular spanner wrench
(7597648).
5
Scribe a mark on gear (3) and reticle assembly (12).
6
Remove three screws (13) and reticle assembly (12)
from gear (3).
NOTE
Step 7 is written and illustrated for
disassembly of reticle assembly.
7
Remove setscrew (14), retainer (15), and reticle (16)
from spur gear (17) using tubular spanner wrench
(7597643).
CLEANING
Clean all parts per TM 9-254.
REPAIR
Repair is by replacement of authorized parts as required. Refer to appendix B.
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