TM 5-4310-384-13
CHAPTER 3. UNIT MAINTENANCE INSTRUCTIONS
SECTION I. LUBRICATION INSTRUCTIONS
NOTE
These lubrication instructions are mandatory.
3-1. GENERAL. Lubrication of the air compressor is limited to servicing (changing)the oil in the air compressor unit.
WARNING
The air compressor must be stopped and power switch set to OFF position before adding oil to prevent
ejection of hot oil.
3-2. COMPRESSOR UNIT LUBRICATION.
a.
Before Operating. Check the oil level in the sightglass (2). Add oil through the filler opening (3)to bring the level
up to the full mark. Refer to following table for proper viscosity.
b.
After 100 Hours of Operation. Remove the drain cap (3)and drain oil into appropriate container with at least a 16
oz. (.5 L) capacity. Install cap and pour 16 oz. (.5 L) of proper oil into filler opening (2). Check oil level after running
compressor unit following the oil change.
Ambient
Oil Type
Above 90°F (32°C)
OE/HDO 40
32-90°F (0-32°C)
OE/HDO 30
Below 32°F (0°C)
OE/HDO 10
Table 3-1. Proper Oil Viscosity
Compressor Lubrication
3-3. ELECTRIC MOTOR LUBRICATION. The electric motor ball bearings have been factory lubricated and sealed. No
grease fittings are present to lubricate bearings.
3-1
