MAINTENANCE
60
9.2.6 Every 16000 hours operation or 24 months
➢ Check solenoid valves / vacuum switch operation, replace if necessary.
➢ Check blow-down valve operation, replace if necessary.
➢ Check thermistor probes operation, replace if necessary.
➢ Check pressure transducer or pressure switch, replace if necessary.
➢ Check control valves and pressure regulator, replace if necessary.
➢ Check, replace if necessary the drive coupling spider (coupling element). See, Figure 29
➢ Check hoses, replace if necessary.
9.3 Maintenance Instructions
9.3.1 Compressor Oil
Your compressors use HERTZ SMARTOIL 6000 branded full synthetic compressor oil. As can be
seen below, these are special lubricants produced in consideration of the compressor operation
mode.
➢ As the oils and lubricants of different type and characteristics also differ as of chemical composition
and additives, mixing them with each other or use different types of oils in the compressor would
cause damages of high cost.
➢ Do not add any oil additive in the compressor oil, it is done in some engine oils. As the oil used is a
special recipe for this compressor, it already includes any necessary additives.
➢ Only use approved compressor oil, when two oils are mixed with each other; it turns and damages
all the filters in the compressor. If you go on using the compressor in this condition, permanent
damages would occur in the screw unit within a few days.
➢ To avoid any improper use, do not keep other types of oils and lubricants beside the compressor.
➢ Please call our service or sales department for your inquiries of to fit your specific needs and
lubricants.
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