Kaeser Screw Compressor AS31

Lock the main disconnect switch in the 'off' position

Check the tension of the belt drive

Re-tension the belt drive if necessary

Open the left-hand maintenance and drive access doors

Tension the belt drive with the hexagonal nut (2)

WARNING: Danger of scalding with hot oil. Beware of air/oil mist that could blow out of the hose. Unrestricted air/oil flow through the hose end will result in a whipping action which could cause severe injury or death.

Attention!: Drain the oil out of the oil separator tank, cooler and the oil pipes completely.

Dispose of the used oil according to environmental regulations.

Perform a test run. When the operating temperature is reached, shut down the compressor unit and lock the main disconnect in the "off" position in accordance with applicable lock out/tag out procedures to ensure the compressor does not restart.

Afterwards, carry out a visual check for leaks.

Switch off the compressor unit and lock the main disconnect in the "off" position in accordance with applicable lockout/tagout procedures to ensure the compressor does not restart.

Lock the isolation shut-off valve in the "closed" position and vent all compressed air trapped between the compressor and the isolation shut-off valve in accordance with applicable lock out/ tag out procedures.

The oil circulation system of the compressor unit vents automatically.

Open the left-hand maintenance and drive access doors.

Attention!: The compressor is wired for connection to a clockwise phase sequence power supply.

Arrows showing the direction of rotation are located on the motor and on the airend housing.

Direction of rotation verified during initial start?

If the direction of rotation is incorrect, change over the supply conductors L1 and L2.

Attention!: If the airend rotates in the wrong direction, the compressor is automatically shut down by the safety air pressure switch (4.2, see chapter 5.3).

Sign off on the direction of rotation check

WARNING: Danger of scalding with hot oil. Beware of air/oil mist that could blow out of the hose. Unrestricted air/oil flow through the hose end will result in a whipping action which could cause severe injury or death.

Attention!: Drain the oil out of the oil separator tank, cooler and the oil pipes completely.

Dispose of the used oil according to environmental regulations.

Perform a test run. When the operating temperature is reached, shut down the compressor unit and lock the main disconnect in the "off" position in accordance with applicable lock out/tag out procedures to ensure the compressor does not restart.

Afterwards, carry out a visual check for leaks.

Lock the main disconnect in the "off" position in accordance with applicable lockout/tagout procedures to ensure the compressor does not restart.

Lock the isolation shut-off valve in the "closed" position and vent all compressed air trapped between the compressor and the isolation shut-off valve in accordance with applicable lock out/ tag out procedures.

The oil circulation system of the compressor unit vents automatically.

WARNING: Danger of scalding with hot oil. Beware of air/oil mist that could blow out of the hose. Unrestricted air/oil flow through the hose end will result in a whipping action which could cause severe injury or death.

Attention!: Drain the oil out of the oil separator tank, cooler and the oil pipes completely.

Switch off the compressor unit and lock the main disconnect in the "off" position.

Lock the isolation shut-off valve in the "closed" position and vent all compressed air trapped.

The oil circulation system of the compressor unit vents automatically.

Open the left-hand maintenance and drive access doors.

Open the right-hand maintenance door.

The pressure gauge on the oil separator tank must indicate zero psig.