TM 3-4310-100-20 & P
Section ll. LUBRICATION
2-6. General
This section contains instructions for lubricating AN-M4,
AN-M4B, AN-M4C, and AN-M4D compressor units
(fig. 2-2). These instructions must be followed to
maintain the equipment in an operational condition.
2-7. Compressor Units (all models)
CAUTION
Use only air compressor lubricating
oil (NSN 9150-00-753-4667) in the
compressors.
Operating
the
compressors with any other type of
oil will ruin the compressors.
a. Checking Oil Level.
(1) Make sure compressor units are as level
as possible.
(2) Check the oil level in the reservoir by
observing the oil level sight on the AN-M4B and AN-M4C
model compressor units (fig. 2-3). Remove the dipstick
on the AN-M4 and AN-M4D model compressor units to
observe oil level (fig. 2-4). Add oil as required to
maintain the oil level within the oil sight circle or dipstick
full mark.
Figure 2-2. Lubrication Points for AN-M4, AN-M4B, AN-
M4C and AN-M4D compressor models.
2-3