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

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

Not finding what you are looking for?
Craftsman 1/2" Impact Wrench Logo

44 questions posted

Ask a Question

Usually answered in minutes!

Top Craftsman Air Tools & Compressors Experts

John Trevino

Level 3 Expert

1420 Answers


Level 3 Expert

2595 Answers

Joe Garcia
Joe Garcia

Level 2 Expert

207 Answers

Are you a Craftsman Air Tool and Compressor Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

View Most Popular

Craftsman Air Tools & Compressors

  • Craftsman Air Tools & Compressors

Most Popular Question

craftsman 1 2 inch air impact

  • Air Tools & Compressors