13-21-615 v01 Page 68
Using an oil separator element at excessive pressure differential can cause
damage to equipment. Replace the separator when the "Change Separator"
advisory appears.
A sudden drop to zero pressure differential or sudden heavy oil carryover may
indicate a ruptured element.
Oil carryover malfunctions of the oil separator are usually due to using elements too long, heavy dirt or
varnish deposits caused by inadequate air filter service, use of improper oil or using oil too long for existing
conditions. A ruptured or collapsed separator element is usually due to heavy dirt or varnish buildup in the
filtering material. Excessive tilt angle of the unit will also hamper separation and cause oil carryover.
Oil separator element life cannot be predicted; it will vary greatly depending on the conditions of operation,
the quality of the oil used and the maintenance of the oil and air filters. The condition of the separator can
be determined by pressure differential gauging or by inspection.
Pressure Differential Gauging
-
The “CHANGE SEPARATOR” advisory will occur when the pressure
differential across the oil separator reaches approximately 8 psid (.55 bar). Replace the oil separator
element at this time. If ignored, the unit will shut down when the pressure differential reaches 15 psid (1
bar).
NOTICE
Inspection
- After removal of separator element, shine a light inside the element to reveal areas of heavy
dirt or varnish deposits or breaks (ruptures) in the element media.
