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 TM 9-2320-211-34-2-1
(8) Backlash check.
FRAME 1
NOTE
T h i s frame tells how to check backlash for all
g e a r s . Do this frame when measuring back-
l a s h for each set of gears in frames 2 and 3.
1.
M o u n t dial indicator on housing and set stem against side of gear tooth (1)
as shown.
NOTE
W h e n measuring backlash, make sure that gear
(2) does not turn. If gear turns, backlash
readings will be wrong.
Turn gear (3) away from dial indicator until gear tooth (4) touches gear
2.
tooth (5) as shown in view A.
S e t dial indicator to read 0.
3.
T u r n , gear (3) towards dial indicator until gear tooth (6) touches other side
4.
o f gear tooth (5) as shown in view B.
C h e c k that dial indicator readings are within wear limits given for each set
5.
of gears.
GO TO FRAME 2
8-28
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