Oil Recommendations - KAESER SM 8 Service Manual

Technical Specification
1.8

Oil recommendations

Lubrication of an air compressor is essential to reliable operation. Carbon and varnish can
form in compressor oils. These deposits block the flow of lubricant and cause excessive
wear and failure of moving parts. Contamination of the oil can allow the formation of acids,
causing extensive internal corrosion. Water may be condensed decreasing the oil's lubric-
ity.
Oil in rotary compressors does much more than lubricate. During the compression pro-
cess, it acts as a sealant in the airend which is important for maximum efficiency. The lubri-
cant also absorbs much of the heat of compression to cool the airend and reduce the tem-
perature of the compressed air. It's not enough that a compressor fluid lubricates well, it
must stand up to the heat, pressure and contaminants that are present in every air com-
pressor.
KAESER COMPRESSORS has several lubricants available that are specially formulated to
match these demands. They feature excellent lubricity, outstanding demulsibility (ability to
separate from water), and long life.
SIGMA
LUBRICANT
M---460
S---460
* Oil changes may need to be more frequent depending on ambient conditions.
When high ambient temperatures or dirty conditions are present, oil changes may be
necessary every 1,000 hours (4,000 hours for synthetic) or even shorter intervals. Oil
change intervals required should be determined through periodic oil analysis.
M -- SERIES SEMI -- SYNTHETIC LUBRICANTS
-
M---Series SIGMA compressor fluids are the highest quality petroleum lubricants.
M---460 is specially blended to provide reliable performance in KAESER screw com-
pressors.
S-- SERIES SYNTHETIC LUBRICANTS
-
S---Series SIGMA compressor oils are formulated from the most advanced synthetic
lubricants. These "synthetic" lubricants begin as high quality petroleum feed stock.
They are then refined, processed and purified into fluids with very consistent molecular
structure. These oils are carefully blended to produce extremely consistant lubricants
with superior properties. SIGMA synthetic lubricants feature all the advantages of both
PAO and diester fluids.
-
S---460 lubricant is recommended for compressors operating in ambient temperatures
between 40•F and 105•F.
Specialty KAESER LUBRICANTS
-
S---680 lubricant may be used when ambient temperatures are always between 70•F
and 105•F.
-
FG---460 synthetic hydrocarbon based food grade lubricant is designed for use in
rotary screw compressors in the application where incidental food contact may occur
with the discharge air. This lubricant meets the requirements of the FDA Regulation 21
RECOMMENDED KAESER LUBRICANTS
DESCRIPTION
ISO 46 Semi---Synthetic Lubricant
ISO 46 Synthetic Lubricant
MAXIMUM RECOMMENDED
CHANGE INTERVAL*
First Oil Change Subsequent Oil
2,000 Hours 4,000 Hours
6,000 Hours 8,000 Hours
Change
1 --- 3