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Page Title: LEVEL VIAL TUBE INSTALLATION (CONT)
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TM 9-1290-232-34&P
4-5.
LEVEL VIAL TUBE INSTALLATION (CONT)
FRAME 1
Procedure
Step
NOTE
Do step 1 only if ring (1) (M13B1C only) or pin (3)
was removed (para 4-4).
Position ring (1) (M13B1 only) inside frame end (2) and using punch and hammer,
1.
install pin (3).
2.
Hold level vial cover (4) between frame ends (2) and (5).
NOTE
There are slots (6) in both sides of level vial tube (7).
Place slotted end (6) of level vial tube (7) into frame end (2) with open side of level
3.
vial tube (7) facing upward.
Carefully push level vial tube (7) all the way into level vial cover (4).
4.
Line up slot (6) in level vial tube (7) with pin (3) so that level vial tube (7) goes into
5.
frame end (5).
Check that level vial cover (4) turns freely and snaps into detent in both open position
6.
and closed position.
NOTE
Do steps 7 and 8 only if level vial cover (4) turns
t o o freely.
7.
Remove level vial tube (7) and level vial cover (4). Bend small sections (8) of level
vial cover (4) for snug fit.
8.
Do steps 2 thru 6 again.
9.
Put small amount of grease on large end of eccentric (9) (JPG). Place eccentric (9) on
end of level vial tube (7) through frame end (5).
10.
Using level vial wrench, install ring (10) carefully so that slotted end of eccentric (9)
comes through center hole in ring (10).
NOTE
FOLLOW-ON
MAINTENANCE
D o performance test (Vol I, para 2-2).
END
OF
TASK
II-4-6

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