4-35. OIL PUMP MAINTENANCE INSTRUCTIONS
This task includes:
Tool Kit, General Mechanics
Gauge, Pressure, Oil (STE/ICE-R); item 13, Appx F
Compactor set on level ground.
Adapter, Gauge (M10 x 1); item 1 Appx F
General Safety Instructions
Observe all WARNINGS and CAUTIONS
Unit maintenance testing of the engine oil pump
is limited to a pressure test.
Remove straight thread plug (1) from oil galley
near the oil filter.
Install gauge adapter fitting and pressure gauge
in oil galley port.
Start the compactor (Para. 2-5) and allow engine
to idle for 2-3 minutes to warm up.
Observe the pressure gauge and record pressure
while idling the engine and at full throttle. Oil pres-
sure must be at least 7 psi (0.5 bar) at idle speed
and at least 23 psi (1.8 bar) at full load (2850 rpm
and 220°F (100°C) oil temperature).
Stop the compactc (Para. 2-7).
Remove the pressure gauge and adapter fitting.
Install the plug (1).
Report pressure readings that do not meet the
minimum specified to unit maintenance.