OIL PUMP ASSEMBLY.

TM 9-2815-210-34-2-1

3 - 4 1 . OIL PUMP ASSEMBLY.

O i l Pump Gear Backlash Check.

FRAME 1

M o u n t d i a l i n d i c a t o r o n t i m i n g g e a r c o v e r ( 1 ) . P o i n t of dial indicator should

rest against side of a tooth on oil pump drive gear (2).

NOTE

W h e n measuring backlash, make sure that oil pump

idler gear (3) does not turn. If gear turns, back-

lash readings will be wrong.

Turn oil pump drive gear (2) as far as you can in one direction. Set dial

indicator to read 0.

H o l d oil pump idler gear (3) so it cannot turn. Turn oil pump drive gear (2)

a s much as you can in the other direction. R e a d backlash between oil pump

drive gear (2) and oil pump idler gear (3).

I f backlash is not between 0.006 and 0.014 inch, mark oil pump drive gear (2)

and oil pump idler gear (3) for replacement.

END OF TASK