TM 9-1240-401-34&P
4-15. LEVEL ASSEMBLY MAINTENANCE INSTRUCTIONS - continued
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b. Disassembly
1
Remove threaded ring (4), using fabricated eccen-
tric tool.
Remove cell (5); slide cross-level (6) from bracket
2
(7) and remove cover (8).
Remove headless straight pin (9), only if damaged.
3
4
Remove machine screw (10), Iockwasher(11 ),
electrical connector cover (12), and LED (13). Dis-
card Iockwasher.
Using 11/1 6 and 45/64 inch tubular spanner
5
wrench, remove threaded ring (14).
6
Remove electrical lead (15) and lens (16).
Remove threaded ring (17) using fabricated eccen-
7
tric tool.
8
Remove cell (18); slide pitch level (19) from
bracket (7) and remove cover (20).
Remove headless straight pin (21), only if dam-
9
aged.
Remove window (22), only if necessary for replace-
10
ment.
11
Remove machine screw (23), Iockwasher (24),
electrical connector cover (25), LED (26), and ring
spacer (27). Discard Iockwasher.
12
Remove ring spacer (27) from LED (26).
13
Using 11/1 6 and 45/64 inch tubular spanner
wrench, remove threaded ring (28).
14
Remove electrical lead (29) and lens (30).
15
Remove two rivets (31 ) and mirror (32), only if nec-
essary for replacement.
Remove two rivets (33) and mirror (34), only if nec-
16
essary for replacement.
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c. Repair
1 Remove corrosion, grease, and dirt from all parts.
Refer to TM 9-254 for cleaning instructions.
4-22
