TM 5-4930-218-14
OPERATOR'S MAINTENANCE INSTRUCTIONS
S e c t i o n I. LUBRICATION INSTRUCTIONS
drain port before you remove the compressor oil drain
3-1. General
cap (3, fig. 3-1). Allow the oil to drain fully.
This section contains supplemental information
and lubrication instructions that the operator must
perform on the lubricating and servicing unit.
Lubrication Order LO 5-4930-218-12 will indicate to
you the required lubrication points, intervals, and
detailed instructions for the lubricating and ser-
vicing unit. TM 5-2805-203-14 covers engine
lubrication requirements.
a. Keep all lubricants in closed containers and
store in a clean, dry place away from external heat.
Allow no dust, dirt, or other foreign material to mix
with the lubricants. Keep all lubrication equipment
clean and ready to use.
b. Keep all external parts not requiring lubrication
free of lubricants. Before lubricating the equipment,
wipe all lubrication points free of dirt and grease.
Clean all lubrication points after you lubricate them
to prevent accumulation of dirt.
c. You must take the following precautions when
using a subzero engine oil in the compressor crank-
case:
(1) The crankcase oil level must be checked
frequently, as oil consumption may increase.
(2) The oil may require changing more frequent-
ly than usual because contamination by fuel dilution
and sludge formation will increase under cold
weather operation condition.
d. Service the air cleaner (see TM 5-2805-203-14).
c. Install the drain cap on the drain pipe.
Compressor crankcase lubrication consists
compressor crankcase and pour 2 quarts of engine oil
primarily of changing the oil in the crankcase.
into the compressor. You must use the oil required for
Proceed as follows:
the particular temperature range which will be en-
a. Run the compressor long enough to heat it to
countered. Refer to LO 5-4930-218-12.
operating temperature. This is important since warm
e. Check the oil level on the oil level sight gage (2,
oil will drain from the internal compressor parts
much more rapidly than cold oil. The warm oil will
low, add enough oil through the oil filler plug
also carry more dirt and sludge with it as it drains.
opening to bring the oil up to the proper level. Take
b. Place suitable containers under the compressor
care not to overfill.
Section II. PREVENTIVE MAINTENANCE CHECKS
AND SERVICES
it systematically so that defects may be discovered
3-4. General
and corrected before they result in serious damage or
To insure that the lubricating and servicing unit
failure. The necessary preventive maintenance ser-
is ready for operation at all times, you must inspect
3-1
