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 TM 9-1240-375-34&P
DIRECT SUPPORT
M137/M137A2/M137A3 PANORAMIC TELESCOPE
(1240-01-038-0531/1240-01-483-6103/1240-01-483-6100)
HEAD ASSEMBLY MAINTENANCE
DISASSEMBLY, CLEANING, REPAIR OR REPLACEMENT, ASSEMBLY
INITIAL SETUP:
Tools and Special Tools
Tool Kit, Electronic System Maintenance (SC 5180-95-B29)
Materials/Parts
Grease (item 15, WP 0152 00)
O-ring (item 8, WP 0134 00)
Sealing compound (item 13, WP 0152 00)
References
TM 9-254
DISASSEMBLY
WARNING
TRITIUM
GAS (H3)
When maintaining radioactively illuminated fire control equipment, follow radiation
hazard procedures in warning summary (M137 only).
4
1
3
5
6
2
1 fc 5 6 9
1.
Unscrew and remove safety relief valve (1) from head housing (2).
2.
Remove two setscrews (3) and shouldered knob (4).
3.
Remove and discard O-ring (5) from inside of machine threaded bushing (6).
0085 00-1
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