TM 5-3805-258-24-1
ENGINE/TRANSMISSION OIL SAMPLING
When Required
Refer to technical bulletin TB 43-0210, Appendix
F for proper oil sample intervals and detailed
sampling procedures.
CAUTION
Do not take samples after oil has been added. Oper-
ate the machine for at least 8 hours before taking a
sample.
CAUTION
Keep sampling supplies (tubing, bottle, caps, etc.)
free of any contamination. Be sure to mark sample
bottles clearly for easy identification.
To Take Engine Oil Sample
1. Clean the engine oil sampling valve thoroughly.
Start the engine and bring up to normal operating
temperature.
2. With the engine at idle, remove the dust cap on
the oil sampling valve. Attach an appropriate size
tube to the valve if desired. Place a vessel under the
valve opening (or tube if used) and pull or turn
ring to drain about one pint of oil. Release ring
to close valve.
3. Place a sample bottle under the valve opening
(or tube if used) and fill bottle to 1/2" from top
and cap the bottle immediately. Replace the dust
cap on the sampling valve and return drained oil
to the reservoir.
4. Mark, pack and ship the bottle as described in
TB 43-0210.
To Take Transmission Oil Sample
1. Clean the transmission oil sample valve thor-
oughly. Start the engine and drive the machine for
one mile to bring the transmission to normal oper-
ating temperature. With the engine still running,
lock the transmission in neutral and set the parking
brake.
2. Remove the dust cap on the sampling valve.
Attach an appropriate size hose to the valve if
desired. Place a vessel under the valve opening
(or hose if used) and pull or turn ring to drain
about one pint of oil. Release ring to close valve.
3. Place a sample bottle under the valve opening
(or hose if used) and fill bottle to 1/2" from top
and cap bottle immediately. Replace the dust cap
on the sampling valve and return the drained oil to
the transmission.
4. Mark, pack and ship the sample bottle as de-
scribed in TB 43-0210.
1-34.2
