TM-9-1240-401-34-P
TELESCOPE MOUNT M146: M118A2 AND M118A3; TELESCOPE MOUNT M145: M145A1; PANORAMIC TELESCOPE: M117 AND M117A2; FIRE CONTROL QUADRANT: M15; PERISCOPE: M42
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
JULY 1993
TM-9-1240-401-34-P - Page 80 of 590
c. Repair
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
2
3
4
5
6
7
Install sleeve spacer (12) on telescope subas-
sembly (11).
Install telescope subassembly (11) in plate cover
(9) with windows alined.
Apply sealing compound to outside threads of
holder (10).
Install holder (10) in plate cover (9).
Install incandescent lamp (8) in holder (10).
Apply adhesive to the groove on the bottom of
plate cover (9) and to one side of new preformed
packing (13).
Install preformed packing (13) in plate cover (9).
3-22
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