20 Most Recent Craftsman Mechanics Air Tool Kit Impact Wrench/ratchet - Page 4 Questions & Answers

check the amps requirements for the compressor, it should be at least 20 amp breaker without much else on it running at the same time.See what else goes off when breaker trips

Is it oil less ? If it's a cast pump with oil it requires full power no little cheap extension cords. Could be out of oil. If oil less it maybe done

It should be a valve plate. You can get them at local air house.

Loose connections or voltage not right. 240v, 30 amp breaker, 10 gauge wire

In 80% of the cases this is the problem. I sulose that you use a lot this compressor so the one way valve gets worn out. The first stel is to pull out the smal hose when the unit stops and see if air escapes. If so then change the black piece in the photo. It will last for a small period of time. I recomend to change the piece in the photo.
This is a way to solve the problem if air escapes trough the small hose.7

Sounds like a leaking valve to me thats why no shut off.

if you go to you tube Craftsman 3 gallon air pump oil change ,it tells you the brand of oil and shows the amount needed . hope this helps .

15 amps at 12 volts = 180 watts.

Broken hose or pressure line ? membrane plates broken cilinder gasket blown out or check valve is dirty

Your old valve plate can be repaired. Usually only one or two reeds break. Carefully trim off broken reed exposing port hole. Tap hole with fine thread and make plug with proper matching bolt. plug should be same thickness as plate. Thread in plug using thread locker then ping in several spots. Works without loss of volume. You could also replace the reeds. Good luck..

if shuts down at 20 psi regulator is set wrong it runs but only builds 20 psi, compressor is probably worn out

The motor should have that information on the nameplate

does it have oil? take it back for a replaement. pull the belt off and see if the motor is still good. turn the pump by hand to check for free turning.

Hi you have to bring the old capacitor to a electric motor shop so they can match it up or write the name and numbers off the motor and give it to them and I am sure they should be able to match one up.

If the blue arc is coming from the motor it might be an older motor that uses brushes. If the motor is serviceable you would need to take apart the motor and change the brushes. Blue arcs don't usually come from shorts

For the money and reliability campbell hausfeld makes good all around air compressors, God bless