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 TM 9-1290-232-34&P
Section 2. LEVEL VIAL TUBE
L E V E L VIAL TUBE MAINTENANCE PROCEDURES INDEX
Reference
(para)
Task
Removal
Installation
L E V E L VIAL TUBE REMOVAL
TOOLS: 1/16" drive pin punch
4 oz ball peen hammer
L e v e l vial wrench (App C)
PERSONNEL:
One
EQUIPMENT CONDITION: Elevation fire control quadrant on work bench
Step
Procedure
Using level vial wrench, remove ring (1) and eccentric (2).
1.
Using punch and hammer, carefully tap level vial tube (3) to free it from frame while
2.
guiding it through frame end (4).
NOTE
Level vial tube cover (5) will fall free when level
v i a l tube (3) is removed.
3.
Carefully remove level vial tube (3) and level vial tube cover (5).
NOTE
Do step 4 only if pin (6) or ring (7) is bent
(M13B1 only).
4.
Using punch and hammer, remove pin (6) and ring (7) (M13B1 only).
END
OF
TASK
II-4-2
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