Inspection checklistOfficial FreeMaint

Rotary screw air compressor weekly inspection

Weekly walk-down of an oil-injected rotary screw compressor, its receiver and dryer: pressure, temperature, oil, drains, leaks and safety devices.

16 checkpointsCompressed airVersion 1Updated

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What’s inside

Section 1 of 4

Operating readings

  • Discharge — Discharge pressure within the load / unload set points

    Pass / Fail

  • Discharge — Discharge temperature

    MeasurementExpected 70–105 °C

  • Controller — No active alarm or warning on the controller

    Pass / Fail

Section 2 of 4

Lubrication and cooling

  • Oil — Oil level in the sight glass

    Choice
    • Within the marks (Conforming)
    • Below the minimum (Non-conforming)
    • Above the maximum (Non-conforming)

  • Oil — Oil looks clean (not milky, not dark)

    Pass / Fail

  • Cooler — Cooler fins clean and air flow unobstructed

    Pass / Fail

  • Cooling fan — Fan runs without noise or vibration

    Pass / Fail

Section 3 of 4

Air treatment

  • Inlet filter — Inlet filter indicator not in the red

    Pass / Fail

  • Condensate drains — Automatic drains discharge when tested

    Pass / Fail

  • Receiver — Drain the receiver manually

    Done / Not done

  • Dryer — Dryer dew point indicator in the green

    Pass / Fail

Section 4 of 4

Safety and condition

  • Safety valve — Safety valve sealed, not leaking, inspection tag in date

    Pass / FailHigh risk

  • Pipework — Any audible air leak on hoses, fittings or pipework?

    Yes / NoNon-conforming answer: Yes

  • Belts and couplings — Guards in place over belts and couplings

    Pass / FailHigh risk

  • Room — Compressor room clean, ventilated, nothing stored against the unit

    Pass / Fail

  • Remarks — Observations for the next service

    Free textoptional

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Licence

Official FreeMaint template, free to use and adapt inside your FreeMaint workspace. An adaptation may be shared in the library under CC BY 4.0; its page then credits this template.

Templates are general guidance. They do not replace the manufacturer’s instructions, your site procedures or applicable regulations.

Equipment: Compressed air

Industries: Manufacturing, Food and beverage, Facilities

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