TM 9-1240-401-34&P
3-17. COVER ASSEMBLY MAINTENANCE INSTRUCTIONS (M118A2) - continued
b. Disassembly
1 Remove incandescent lamp (8) from plate cover
(9).
2 Remove holder (10) from plate cover (9).
3 Remove telescope subassembly (11) and sleeve
spacer (12) from plate cover (9).
4 Remove preformed packing (13) from groove in
plate cover (9) and discard.
1 Remove corrosion, grease, and dirt from all parts.
Refer to TM 9-254 for cleaning instructions.
2 Visually inspect for missing and damaged parts.
3 Repair or replace parts in accordance with author-
ized parts listed in appendix D.
d. Assembly
1
Install sleeve spacer (12) on telescope subas-
sembly (11).
2
Install telescope subassembly (11) in plate cover
(9) with windows alined.
3
Apply sealing compound to outside threads of
holder (10).
4
Install holder (10) in plate cover (9).
5
Install incandescent lamp (8) in holder (10).
6
Apply adhesive to the groove on the bottom of
plate cover (9) and to one side of new preformed
packing (13).
7
Install preformed packing (13) in plate cover (9).
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