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