TM 9-2815-210-34-2-2
FRAME 2
1.
2.
3.
4.
Using dial indicator (1), check backlash of oil pump drive gear (2) and oil
pump idler gear (3).
Mount dial indicator (1) on timing gear cover (4). Point of dial indicator (5)
should rest against side of a tooth on oil pump drive gear (2).
Turn oil
NOTE
When measuring backlash, make sure that oil pump
idler gear (3) does not turn. If gear turns, back-
lash readings will be wrong.
pump drive gear (2) as far as you can in one direction. Set dial
indicator to read 0.
Hold oil pump idler gear (3) so it cannot turn.
Turn oil pump drive gear (2)
as much as you can in the other direction.
Read backlash between oil pump
drive gear and oil pump idler gear.
Backlash must be between 0.006 and
0.014 inch.
END OF TASK
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