Ingersoll Rand Compressor R55

Replace Food-grade Lubricant (Ultra FG)

Replace Separator element (if using Food-grade Lubricant)

With the compressor running on load, check the separator differential pressure via the controller. It will be necessary to change the element if the differential pressure equals zero or exceeds 1 bar (15 psig).

For R30-37, separator cartridges change procedure is as follows,

1. Stop the machine, electrically isolate and vent all trapped pressure.

2. Loosen separator cartridges with the correct tool.

3. Remove the cartridges from the housing; place in a sealed bag and dispose of safely.

4. Clean the mating faces of the housing.

Inspect Air-cooled sequential cooling system for blockage

Inspect Water-cooled sequential cooling system screens

Inspect Starter box power drive module (PDM) filter element

Analysis Water from water-cooled sequential cooling system

Sign off on the monthly compressor maintenance

It is recommended that the discharge temperature sensor (2ATT) is checked regularly as follows:

a. For air cooled compressors, stop the cooling blower by opening the blower / fan motor circuit breaker.

b. For water cooled compressors, shut off the cooling water.

The compressor should trip at 109 °C (228 °F). A trip warning will appear on the controller display.

1. Check the retaining cap for dirt and debris and wipe clean.

2. Unclip the retaining cap and withdraw the old element.

3. Fit the new element and refit the retaining cap.

Replace - Coolant filter element

1. Remove drain plug from bottom of filter housing and drain coolant.

3. Remove the element from the housing.

4. Place the old element in a sealed bag and dispose of in a safe way.

The flexible hoses that carry coolant through the cooling system may become brittle with age and will require replacement. Replace them as needed or every four years.

1. Depending on the location of the hose, it may contain compressor coolant. It is recommended to drain the coolant into a clean container. Cover the container to prevent contamination. If the coolant is contaminated, replace with new coolant.

3. Install the new hose and refill the compressor with coolant.

4. Start the compressor, check for leaks and check coolant level. Refill as necessary.