5-20. CELL ASSEMBLY MAINTENANCE INSTRUCTIONS
a. Disassembly b. Repair
This task covers:
Tool Kit, Electronic System, Repair, Field Mainte-
Tubular spanner wrench, 1 and 1-1/64 inch
(Item 27, appx F)
M117/M117A2 panoramic telescope removed
from howitzer (TM 9-2350-311-10/
Tubular spanner wrench, 1-3/32 and 1-7/64 inch
(Item 28, appx F)
Cell assembly removed from elbow assembly
Sealing compound (Item 13, appx B)
Using 1-3/32 and 1-7/64 inch tubular spanner
wrench (item 28, appx F), remove threaded ring (1)
from cell (2).
Using 1 and 1-1/64 inch tubular spanner wrench
(item 27, appx F), remove threaded ring (3) from
Remove lens (4), spacer (5), and lens (6) from cell
(2). Mark lenses (4 and 6) for reference during
assembly (ref. TM 9-254).
Remove corrosion, grease, and dirt from all parts.
Refer to TM 9-254 for cleaning instructions.
Visually inspect for missing or damaged parts.
Repair or replace parts in accordance with author-
ized parts listed in appendix D.