Premature increase in pressure differential
This usually occurs when compressors work under the following conditions:

a) Air intake filter and oil no longer efficient

b) Unsuitable or heavily contaminated oil

c) Water contamination-recognised by rust deposits in separator tank

To help in avoiding these problems, there should be frequent replacements of the Air and Oil filters as well as the oil which should be changed completely. Check for deposits of 'varnish' which can quickly block a separator.

Compressors should not be run at excessively high temperatures.

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