Question about Air Tools & Compressors
I have a compressor and the last time I used it, it was doing something similar. I haven't tried anything on it yet but I think there are two possibilities (Either it needs oil ) (It may need some air pumped into the tank to get it to build up pressure.) Either those two or the pressure switch is bad. The switches usually are very tough so not likely that but as a last resort I would try a new one. I do think lack of pressure would likely be the oil is low. I think the oil makes a seal around the piston and that causes it to build pressure. If it will still blow up a tire there should be enough pressure to turn the relay switch off. Mine will still blow up a tire so not sure if it is a pressure problem. May need pressure put into the valve on the tank and if there is one I will try that today.
Posted on Aug 12, 2017
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Posted on Jan 02, 2017
usally there is a releaf valve that takes the pressure off the compressor while it is resting. If that pressure is not off when the drive piston starts the motor will overload and blow the the breaker or reset. Check for a releaf valve for when the unit has reached full pressure
Posted on Jun 16, 2009
if this is an older or much used unit, cylinder/piston may be worn, unable to push higher psi, which would explain no leaks. if newer unit, seems like regulator unit/valve faulty
Posted on Jul 24, 2009
Maurader1 an apprentice has this problem solved and is spot on. All these gurus and wiz need to stick to the basic and common sense. The first place your pump will give out after use or abuse is the gasket. All this garbage about defective reeds and defective pressure switch is a lot of nonesense if you first don't rule out the most common problem the head gasket. I'm cheap and this thing has paid for itself 10 time over. You can get a gasket kit for $7, but I fabricated a gasket out of the back of my notebook and sprayed some gasket spray and been working like a charm ever since.
Posted on Jan 04, 2010
There are two valves in play here. There is a relief valve that opens when the motor kicks off to release the pressure in the compressor itself. That is normal, and is required so that the motor can restart next time without having to overcome that pressure. The other valve is the problem. It is a reed valve between the compressor and the tank. This valve's job is to prevent the air in the tank from returning to the compressor. Think of it as a ratchet for the air. It is this reed valve that has failed.
Posted on May 27, 2010
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