Ingersoll UP6S 11-22 kW Oil-Flooded Rotary Screw Compressors (UP Series): Routine Maintenance

It is better to drain the coolant immediately after the compressor has been operating as the liquid will drain more easily and any contaminant will still be in suspension.

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

• Place a suitable container close to the drain valve.

• Slowly remove fill/vent cap.

• Remove plug from drain valve.

• Open the drain valve and drain coolant into container.

• Close the drain valve.

• Replace plug in drain valve

• Refill the machine following the ”top up coolant” procedure above. After initial fill, to purge any airlocks, the machine should be run for a few minutes cycling between load and no load, before checking that the level is correct.

• Replace and tighten coolant fill cap.

COOLANT FILTER CHANGE PROCEDURE

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

• Loosen filter with the correct tool.

• Remove the filter from the housing.

• Place the old filter in a sealed bag and dispose of in a safe way

• Clean the mating face of the housing taking care to avoid any particles entering the machine.

• Remove the new Ingersoll Rand replacement filter from its protective package.

• Apply a small amount of lubricant to the filter seal.

• Screw the new filter down until the seal makes contact with the housing, then hand tighten a further half turn.

• Start the compressor and check for leaks.

AIR FILTER ELEMENT CHANGE PROCEDURE

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

• Unscrew the retaining cap and withdraw the old element.

• Fit the new element.

• Replace the retaining cap.

SEPARATOR CARTRIDGE CHANGE PROCEDURE

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

• Loosen separator cartridge with the correct tool.

• Remove the cartridge from the housing; place it in a sealed bag and dispose of it safely.

• Clean the mating face of the housing.

• Remove the new Ingersoll Rand replacement cartridge from its protective package.

• Apply a small amount of lubricant to the cartridge seal.

• Screw the new cartridge down until the seal makes contact with the housing, then hand tighten a further 1/4 turn.

• Start the compressor and check for leaks.

COOLER CLEANING PROCEDURE

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

• Remove the top cover to obtain access to the cooler.

• Clean the cooler.

• Rebuild in reverse order.

BELT CHANGE / GAS STRUT CHANGE PROCEDURE

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

• Remove the side cover from the machine.

• Fit a 1/2” square drive wrench in the tension cam located above the airend (access from front door). Turn clockwise 1/4 turn to Position II to release gas strut tension on the belts.

• Using a small screwdriver under the spring clip, ease the ball ends off the spherical studs at the ends of the gas strut.

• Replace the gas strut and the studs at the same time by removing and replacing the studs then pushing the new gas strut firmly onto the studs until it clicks into place.

• Turn the tension cam clockwise 1/4 turn to Position III to raise and support the airend. Place a block of wood or similar under the separator tank for support.

• Replace the belts from the left side of the machine.

• Turn the tension cam counter–clockwise 1/2 turn to Position I to tension the gas strut.

• Spin the drive to check alignment of the belt ribs on the pulleys (sheaves).