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 TM 9-2520-246-34-1
b.
Backlash Check.
NOTE
This frame tells how to check backlash for all gears.
Do this frame when measuring backlash for each set
of gears in frames 2 and 3.
Mount dial indicator on housing and set stem against side of gear tooth (1)
1.
as shown.
NOTE
When measuring backlash make sure that gear (2) does
not turn. If gear turns, backlash readings will be
wrong.
2.
Turn gear (3) away from dial indicator until gear tooth (4) touches gear
tooth (5) as shown in view A.
Set dial indicator to O.
3.
4.
Turn gear (3) towards dial indicator until gear tooth (6) touches other side
of gear tooth (5) as shown in view B.
Check that dial indicator readings are within wear limits given for each set
5.
--
of gears.
GO TO FRAME 2
TA 087801
2-3
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