Safety During Maintenance; Periodical Maintenance Check List; Daily Maintenance; Every 125 Hours Operation - Hertz HDD Series Instruction Manual

MAINTENANCE
9.1

Safety during maintenance

➢ Before maintenance, make sure that the power supply to the compressor relieve the system of all
pressure, is connect, lockout and tag out the power supply to the compressor package before
removing valves, caps, plugs, fittings, bolts and filters. Place a warning sign, plate etc. in a visible
place on the compressor to show that the maintenance work is in progress.
➢ After shutting down the compressor, please wait till it cools down. Touching hot points on the
compressor may result in injuries.
➢ Be sure that the pressurized air is discharged from the compressor before maintenance.
➢ High current passing through the circuit. Check the current in the circuit during maintenance. Don't
forget that current passes through the main switch even when it is off and provide current to the
mentioned components only.
➢ Unless you turn off the mains voltage, there is a high voltage in the compressor power system,
even if the compressor does not operate.
➢ After maintenance, be sure that all the safety measures are restored.
➢ Only the authorized staff must be allowed to handle maintenance of the compressor.
9.2

Periodical Maintenance Check List

9.2.1 Daily Maintenance

➢ Check the oil level of the compressor, add oil if required (See, Figure19).
Transparent hose is connected on the separator tank body to easily monitor the oil level. Check the
oil level when the compressor is in stop mode. (The oil level may change in the course of operation.)
If the oil is low, fill it to top of fill line. If you add oil frequently, it means that there is problem in your
compressor. Review the failures section to understand it.
➢ In the course of operation, check the warning signs and operating values on the control
panel.
➢ Check discharge pressure and temperature.

9.2.2 Every 125 hours operation

➢ Clean the compressor panel filter by pressurized air.
➢ Use pressurized air to clean the radiator. The cleaning operation will keep the exterior cooling
surfaces clean and ensure effective heat dissipation.
➢ Check the compressor internal parts and components for oil leaks or damages.
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