40
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Book: 22305593 (8/03)
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In the compressor lubricating and cooling system,
separation of the oil from the compressed air takes
place in the receiver--separator tank.
As the
compressed air enters the tank, the change in velocity
and direction drop out most of the oil from the air.
Additional separation takes place in the oil separator
element which is located in the top of the tank. Any oil
accumulation in this separator element is continuously
drained off by means of a scavenge tube which returns
the accumulated oil to the system.
The life of the oil separator element is dependent upon
the operating environment (soot, dust, etc.) and
should be replaced every twelve months or 2000
hours. To replace the element proceed as follows:
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Ensure the tank pressure is zero.
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Disconnect the hose from the scavenge tube.
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Remove scavenge tube from tank cover.
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Disconnect service line from cover.
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Remove cover mounting screws.
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Remove cover and element.
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Remove any gasket material left on cover or tank.
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Install new element.
SCAVENGE LINE
The scavenge line runs from the combined orifice/drop
tube in the separator tank, to the orifice fitting located
in the airend.
Examine the orifice, check valve and hoses at every
service or in the event of oil carryover into the
discharge air.
It is good preventative maintenance to check that the
scavenge line and tube are clear of any obstruction
each time the compressor lubricant is changed as any
blockage will result in oil carryover into the discharge
air.
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