Gardner Denver Compressor APEX25-30A 30HP

Warning: Ensure the machine is turned off before starting the procedure

Loosen latches fastening end cover to the filter housing

Enter the differential reading from the vacuum sensor

Insert the element into the air filter housing

Replace the air filter housing cover in place

Power supply to the compressor package disconnected, locked out and tagged out?

Located the automatic grease relief fittings (one at each motor bottom end) and checked if their spring loaded covers are operational?

Located the grease fittings provided at each motor top end, wiped each grease fitting clean and added grease with a hand-operated grease gun until excess grease starts draining from the companion grease relief fitting?

Made sure that the grease volume does not exceed the motor manufacturer’s recommendation by a factor of approximately 2X?

Wiped off excess grease expelled by the automatic grease relief fittings?

Check the reservoir oil level - add oil if required

Observe if the unit loads and unloads properly

Check control panel display for advisory text messages

Sign off on the 8 Hourly Compressor Maintenance

Remove the intake air grill panel from the package by first removing the top-located screws and washers.

Remove the vfd filter by sliding out sideways through the provided slot.

Is fouling evident on the filter?

If fouling is evident, cleanse the filter media gently with water – do not remove from the aluminum frame.

Replace the filter media if media is heavily fouled or ruptured.

Replace the filter and the intake air grill panel in the reverse order.

Sign off on the filter maintenance

DANGER: Before inspecting the pressure relief valve, release air pressure, lockout and tagout the power supply to the compressor package. Failure to release pressure or properly disconnect the power may result in personal injury or death.

CAUTION: Never paint, lubricate or alter a relief valve. Do not plug vent or restrict.

DANGER: Operation of the unit with improper relief valve setting can result in severe personal injury or machine damage. Ensure properly set valves are installed and maintained.

Pressure Relief Valve Check During Operation - The pressure relief valve has no user-serviceable or repairable components. However, it should be tested for proper operation at least once every year.

To test the pressure relief valve: Raise the system operating pressure to its normal level. Pull the stem ring to open valve and let it vent for a few seconds. Release the stem ring to close the valve.

Change oil separator, see “Removal of Oil Separator for Inspection or Replacement”, Section 5, page 53 for further details (or when 8 psid pressure differential across the element).

OIL FILTER, AIR/OIL SEPARATOR ELEMENT or OIL SCAVENGE RETURN ORIFICE INSPECTION PROCEDURE:

Clean the gasket seating surface of the head.