OIL ANALYSIS PROGRAM SAMPLING PROCEDURES
The engine oil sampling valve is located on the end of the oil filter located on the right side of the engine.
When a lubrication note specifies that an oil sample must be taken, use the following procedures:
Ensure that oil to be sampled is at its normal operating temperature (TM 5-2420-224-10).
Open valve (1) and pump approximately two ounces of oil into suitable container, by pumping
plunger (2). Discard this oil. This will remove waste impurities from oil filter.
Place sample bottle (TB 43-0210) under valve (1) and fill sample bottle to approximately 1/2 in. (1.3
cm) below neck of bottle. Close valve (1) and check for leaks.
Send oil sample to AOAP laboratory.