Oil flow
In oil separator tank (OT), most of the oil is removed from the air/oil mixture by centrifugal action. The oil
collects in the lower part of oil tank. The remaining oil is separated from the compressed air by oil
separator element (OS).
Air pressure forces the oil from oil tank (OT) through oil cooler (Co) and filter (OF) to compressor element
(E).
The oil system is provided with a thermostatic bypass valve (BV). When the oil temperature is below its set
point, bypass valve (BV) shuts off the supply to oil cooler (Co) and the oil cooler is bypassed.
Thermostatic bypass valve (BV) starts opening the supply from cooler (Co) when the oil temperature has
increased to the set point. At approximately 15 ˚C (27 ˚F) above the set point, all the oil flows through the
oil cooler.
Cooling
The cooling system comprises an air cooler (Ca) and an oil cooler (Co).
The cooling flow is generated by fan (FN).
Instruction book
2920 7140 90 19
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