ARMY TM 9-6115-670-14&P
6-49
6.21. OIL PUMP GEAR.
This task covers: a. Test
b. Replace
INITIAL SETUP
Tools
General Mechanic's Tool Kit
(Item 1, Appendix B)
Dial Indicator
(Item 36, Appendix B)
Equipment Conditions
Gear case removed (para 6.12.).
Materials/Parts
Oil Pump Gear
TEST
a. Set up a dial indicator with its tip on a tooth of the oil pump gear (2, Figure 6-18).
b. Measure oil pump gear backlash by holding crankshaft gear still while moving oil pump
assembly.
c. If backlash exceeds 0.0059 in. (0.15 mm), replace oil pump gear.
REPLACE
a. Remove one nut (1) and remove oil pump gear (2).
b. Install oil pump gear (2) and secure with nut (1).
Figure 6-18. Oil Pump Gear