IMT CAS2545, Operation And Maintenance Manual

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40 IMT CAS2545 Air Compressor Manual Part No. 99904145
CHANGING COMPRESSOR OIL
1 Run compressor until oil temperature is 100° - 122° F (40° - 50° C). Then, completely drain
air tank and relieve pressure by opening pressure relief valve.
2 Remove filler cap. Open drain valve and drain oil, making sure to follow local and state
regulations on waste oil collection and disposal.
3 Close drain valve. Add oil as described in the section, "Adding Oil to Compressor."
4 Replace oil fill cap.
5 Close pressure relief valve and open shut-off valve between compressor and compressed-
air system.
DANGER
Do not attempt to drain condensate, remove the oil level fill plug, or break any connection in
the air or oil system without first shutting off compressor and manually relieving pressure from
the sump and air storage tank. Failure to comply with this warning may cause damage to
property and seriously bodily harm.
NOTE
The screw-on cap for the oil inlet pipe includes a lateral safety opening which air or oil may
penetrate in case of residual pressure in the separator receiver. Wait until the residual
pressure is relieved prior to checking the oil level.
The compressor cannot be overfilled with oil. Excess oil will run out the oil fill tube.
AIR INTAKE FILTER
The air intake filter is a heavy-duty two-stage dry type high efficiency filter designed to protect
the compressor from dust and foreign objects. The filter is equipped with an evacuator cup for
continuous dust ejection while operating and when stopped. Frequency of maintenance of the
filter depends on dust conditions at the operating site. The filter element must be serviced when
clogged (maximum pressure drop for proper operation is 15” H
2
0). The filter is equipped with a
pressure drop indicator. Change the element based on the pressure drop indicator reading, at
least as frequently as outlined in the maintenance schedule.
PURIFIER/SEPARATOR CARTRIDGE
The purifier cartridge is the air/oil separating element of the screw compressor unit. The
cartridge, which is connected to the filter support of the separator tank using a fitting, must be
changed at least once per year, after 3,000 to 6,000 operating hours, or as soon as the
differential pressure is more than 14 psi (1 bar) If the intake air is highly contaminated or the oil
quality is poor, the cartridge will clog and may have to be replaced sooner. The purifier cartridge
screws on to the filter support of the separator tank via a fitting.
1 Shut down compressor and wait for complete blow down (zero pressure). Also, completely
drain air tank.