Atlas Copco Compressor

[Casemx120]

hi
Problem with Atlas Copco compressor with Deutz engine. It won’t rev up and slow down with the pressure regulator.
We can get it to work properly by using the airline and have cleaned the regulating valve but have not inspected further.
We haven’t started to investigate the pressure cylinder any further as would like to know a couple of do’s and don’ts
Any info out there
Thanks
Tony

 

[Mursal]

And if you open the line, will it then run up to the new pressure set on the regulator?
Sometimes they wont kick in until the line pressure drops off .............

 

[Casemx120]

Yeah it runs up but prob is it not shutting back the revs!!

 

[Mursal]

So it keep building past the set pressure?

 

[Casemx120]

Yeah

 

[Pheasant Surprise]

hi
Problem with Atlas Copco compressor with Deutz engine. It won’t rev up and slow down with the pressure regulator.
We can get it to work properly by using the airline and have cleaned the regulating valve but have not inspected further.
We haven’t started to investigate the pressure cylinder any further as would like to know a couple of do’s and don’ts
Any info out there
Thanks
Tony

What model / year is the unit?

It could be the regulator assembly, sometimes they can get some grit caught in them which makes the valve stick. There could also be a leak in one of the control lines going to the engine actuator piston and/or the off-loader valve on top of the compressor.