Kaishan Compressor Air Compressor KRSD-40

Conditions for filter cartridge replacement

NOTICE: The fluid filter maintenance indicator may read high upon start up on cool mornings due to sluggish fluid creating higher than normal differential pressures. Monitor indicator after the fluid warms up.

Sampling procedure for oil sump without fixed sampling hardware installed

i. Take sample at normal operating conditions or immediately after shutting unit down. That will ensure a homogeneous sample of oil.

WARNING: Always ensure the compressor is switched off and all air pressure is relieved before starting the maintenance.

NOTICE: Intake filtration equipment supplied from the factory may not be adequate for extremely dirty applications or some forms of dust or vapors. It is the customer’s responsibility to provide adequate filtration for those conditions. Warranty will be voided if inadequate filtration causes a failure.

Does the maintenance gauge show red with the compressor running full load?

Has it been 4000 hours or a year since the last filter replacement?

Are the operating conditions dirty?

If dirty conditions exist, it is advisable to relocate the intake air to an outside source.

Is the filtered air side of the air cleaner canister and the suction manifold clean?

If dirt is found, determine the cause and correct.

Are all gaskets, threaded connections, flange connections, and hose connections between the air filter and air compressor airtight?

Replace air/oil separator (spin on type)

The air/oil separator is a coalescent filter element. Replacement of standard type separator requires unbolting and lifting the separator cover and replacing it with a new one. The air/oil separator should be replaced as indicated in the maintenance schedule or as follows:

♦ If excessive fluid carryover is observed.

♦ 4,000 hours MAX (for spin on type), or-as indicated by differential pressure indicator.

♦ As indicated by the gauge (if equipped).

KRSD series compressors utilize a pressurized fluid drain. Use the following procedure to drain and replace the compressor fluid.

Drain water from air/oil separator tank

Check for loose fluid and air tubing, electrical wiring connection

Sign off on the compressor maintenance

Check equipment power supply and earth-grounding

Replace air/oil separator (standard type)

Unbolt and lift the separator cover

Replace separator with a new one

Check for excessive fluid carryover

Check differential pressure indicator