20 Most Recent Craftsman 1/2" Impact Wrench - Page 6 Questions & Answers


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
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Craftsman Air... | Answered on Feb 10, 2016


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

Craftsman Air... | Answered on Jan 11, 2016


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 .

Craftsman Air... | Answered on Dec 23, 2015


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

Craftsman Air... | Answered on Oct 25, 2015


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..

Craftsman Air... | Answered on Oct 19, 2015


sorry there is no standard for this .depends on too many things . like hose size, nozzle size ,etc..

Craftsman Air... | Answered on Oct 10, 2015


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

Craftsman Air... | Answered on Oct 03, 2015


The motor should have that information on the nameplate

Craftsman Air... | Answered on Oct 03, 2015


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.

Craftsman Air... | Answered on Apr 23, 2015


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.

Craftsman Air... | Answered on Mar 20, 2015


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

Craftsman Air... | Answered on Mar 01, 2015

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