TM 5-4310-393-14
Return the oil cap/dipstick to the filler neck completely, then remove and note the oil level on the dipstick. Add or drain as
necessary. The oil level must not exceed the maximum level mark on the dipstick.
3-5.3. Compressor Oil Change Procedure.
The compressor oil should be changed according to the PMCS schedule (Table 2-2). Refer to Figure 3-4 and proceed as
follows:
a.
Run the compressor unit until it is warm. Turn off the compressor.
CAUTION
THE FEDERAL WATER POLLUTION
CONTROL
ACT
PROHIBITS
THE
DISCHARGE OF OIL OR OILY WASTE
INTO OR UPON THE NAVIGABLE
WATERS OF THE UNITED STATES
OR
THE
WATERS
OF
THE
CONTIGUOUS
ZONE,
IF
THE
DISCHARGE CAUSES A FILM OR
DISCOLORATION OF THE SURFACE
OF THE WATER OR CAUSES A
SLUDGE OR EMULSION BENEATH
THE SURFACE OF THE WATER.
ENSURE
A
CONTAINER
OF
SUFFICIENT SIZE IS USED WHEN
DRAINING THE OIL.
Figure 3-4. Compressor Oil Level
b.
Vent any residual pressure from the system by opening and then closing the manual drain valves on oil/water
separators and purge valve of the purification system.
1.
Open the oil filter cap/dipstick slowly, allowing any residual pressure to vent from the crankcase.
2.
Remove the oil filter cap/dipstick from the oil filler neck.
3.
Place a suitable oil drain pan beneath the drain plug at the back of the unit.
4.
Remove the oil drain plug from the compressor, (Figure 3-5, item 3).
5.
Allow the warm oil to totally drain.
6.
Reinstall the oil drain plug.
7.
Remove the oil drain pan. Dispose of the used oil in accordance with current instructions for waste oil
disposal.
CAUTION
TO AVOID DAMAGE TO THE COMPRESSOR, DO NOT MIX TYPE OR VISCOSITY
GRADES OF OIL. DO NOT OVERFILL.
c.
To fill with oil, pour 1.5 quarts of oil slowly into the oil filler neck. If necessary, add oil. Wait five (5) minutes after
filling, check oil level per paragraph 3-5.2, reinstall the filler cap, then start the compressor unit.
3-4
