Will not build up pressure
You did not state whether the compressor would kick on automatically, or whether it would kick off at some point, so I have to work through it with you....
If the compressor runs, you should see pressure on one of the two gauges. The gauge that is closest to the tank is the pressure that the compressor proper is putting out to the tank, and is the primary gauge. The other gauge is the pressure supplied to the tool via the hose, downstream of the regulator. If you are seeing pressure at the first gauge, that's a good sign. Also a good sign is if the commpressor runs and switches off at some point before lifting the PRD (pressure relief device). This tells you that the compressor is pumping and that the pressure switch is working. If this is the case, try working the regulator control knob and watch the second gauge. The regulators can be tricky; sometimes the regulator knob operates in the opposite direction than expected, depending on the type of regulator, so experiment a bit. (Usually there is wording and an arrow on the knob telling you the direction to adjust. If you start to see a rise in the pressure on the gauge, go ahead and set the desired tool supply pressure.
If you can get a pressure on the first gauge, but nothing on the second gauge no matter how you manipulated the regulator, you should suspect a bad regulator.
If there is no pressure on the first gauge, try cracking open the drain valve on the tank and starting the compressor. If you get air out of the tank with no indication on the gauge, you should suspect a bad primary gauge. If you get no air out of the tank, open the drain valve further and check again. If still no air, the compressor itself is suspect. You will need to determine that the motor is in fact turning the compressor. If the motor is running, but the compressor isn't moving, unplug the compressor and reconnect the linkage. If the compressor will run with the motor, the compressor may be shot, or tha air intake may be plugged off. Remove the cover on the air intake and inspect the filter. Clean and replace as required.
If the compressor will start when you operate the on/off switch, but does not kick off at some point, the pressure switch is probably at fault. It is an odd piece of work....it is mechanical, electrical and pneumatic, all at once. You would need to troubleshoot each portion in order to put it right. The most common problem with the pressure switch is burned or welded contacts, followed by wiring issues to the contacts, then the air line to the switch, then mechanical linkages within the switch.
This humble guide should be enough to get you going. I hope that it has been useful.
Regards, and good luck!
Jul 18, 2009 |
Campbell Hausfeld 02-Gallon Air...