How does a screw compressor work?

A screw compressor can run loaded ('pumping air') or unloaded ('idle'). The inlet/loading valve opens and closes according to air demand. The inlet valve is controlled by a solenoid valve that supplies control air to the inlet/loading valve. Check solenoid valve coil and solenoid valve operation.

How do you remove a compressor rotor?

Use a slide hammer (M8) to remove the dowel pins (K51) located on both sides of the compressor. Loosen the hex bolts connecting inlet casing (B01) and rotor casing (B02) Apply jack bolts to the inlet casing to separate it from the rotor casing. Slide the inlet casing horizontally away from the compressor.

How do you Jack a compressor rotor?

Discharge Balance Piston and Bearings Use eye bolts to place the balance piston onto the male rotor shaft at the discharge end of the compressor Remove the eye bolts and fix a threaded rod into the end of the male rotor. Slide the male jacking tool up0 against the balance piston.

What should I do if my air compressor is too low?

If the capacity of the air compressor is really too low, check the following: Check differential pressure over oil separator. Replace separator when necessary. Check and replace compressed air filters (if installed). Compressor does not unload. Check if pressure switch is correctly set and working.

How do you remove a compressor retaining ring?

Slide the inlet casing horizontally away from the compressor. Set the inlet casing on the work bench external surface up. Remove the retaining rings (L12) from both the male and female sides. Turn the inlet casing over so that the external surface is facing sown.

How do I know if my air compressor is working?

If you have a compressed air dryer, check the dewpoint. Check the current draw with a current clamp meter. If the motor draws exeessive current: Try to turn the compressor by hand. It should be possible to turn it around. It should turn around smoothly, without any 'hickups' (be sure to completely shut down the air compressor!).