TM 10-4320-309-14
TM 4320-14/1
5-6. REPLACE/INSPECT/REPAIR LUBE OIL PUMP
This task covers:
a) Removal
c) Repair
b) Inspection
d) Installation
INITIAL SETUP
T o o l s
Tool Kit, General Mechanics (Item 2,
Appendix B, Section III)
Socket Set, 8 to 19 mm (Item 6,
Appendix B, Section III)
Calipers, Vernier, 0“ to 6“ (Item 20,
Appendix B, Section III)
Equipment
Condition
Para
3-16
Inlet air sound enclosure assembly
removed.
3-16
Outlet air sound enclosure assembly
removed.
4-11
Volute removed.
Materials/Parts
4-12
Impeller, shaft seal, and shaft
adapter removed.
Diesel fuel (Item 4, Appendix E,
Section II)
4-13
Wear plate removed.
4-14
Pump casing removed from engine.
NOTE
This engine adopts a forced oil lubrication system driven by a trochoid
pump. Lubricating oil is circuited as follows: Lubricating oil filter to tro-
choid pump to crankshaft bearing insert to crankpinn bearing insert. The
rocker arm chamber is lubricated by lube oil vapors. Figure 5-13 shows
the lubricating oil route.
Figure 5-13. Lubricating Oil Route
5-16
