Question about Craftsman Air Tools & Compressors

2 Answers

Craftsman Air Compressor 919.156640 -- Today, when I went to set the regulator outlet pressure to 80 psi, it continued to hiss (relatively small air leak) from under the plastic regulator knob (13 on the parts diagram). When I turned the knob counter-clockwise to reduce the pressure, it had no effect - the pressure stayed at about 80 psi with a slow leak. I eventually pulled the safety valve to reduce pressure so that I could open the drain ****. My owners manual states that for the problem of a continuous air leak at the regulator knob, the cause is usually dirty or damaged regulator internal parts. Most of the parts are not available any longer. Is it worth my trying to take the regulator apart to clean the parts - or is this beyond routine DYI skills?

Posted by on

Ad

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 2,428 Answers

You could give it a try you don't have anything to loose and you might be able to clean it and thats what it sounds like. But you can redo bolth of the regulators with new ones get rid of the plastic cover and they thread on a pipe that comes out of the air system. You could get two new gauges and a manifold body for 50 dollars at a place that sells auto paint supplys or spray equipment. If the compresser still works good its worth it you just have to do a little retro fitting these parts tend to be vary standard its your call good luck

Posted on Jan 02, 2011

Testimonial: "Thanks. If I can't get it to work by my attempt at cleaning, I'll certainly follow your advice."

Ad
  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

  • Expert
  • 223 Answers

Take it apart, just watch for the springs and valve falling out. Regulators aren't complicated and if you can save $40 for ten minutes' worth of disassembly, cleaning and reassembly then you're probably ahead.

If nothing else, you get to see exactly how it works, and that's worth something too.

lp

Posted on Jan 02, 2011

Testimonial: "Thanks for the encouragement."

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Can I get 80 psi with dials set at 40 psi


this compressor should be able to fill your tires to 80 psi. Look for a pressure switch and adjust it so the motor shuts off at a higher pressure. Do not exceed 100 psi.

Sep 08, 2014 | Air Tools & Compressors

1 Answer

Why does the safety valve go off before the pressure switch on a porter cable 80 gal air compressor


The maximum pressure on most small compressors is 10 bar or 1000kpa which is about 145 psi in the old language most safety valves are set to 150 psi. I suggest you get some one to reduce the pressure switch setting. Running a compressor at elevated pressures does not give you any more air. A reasonable pressure for small compressors is 120 psi

Jan 17, 2013 | Porter Cable C2002-WKR 150 PSI, 6 Gal....

1 Answer

My compressor will not go over 20 psi i have a craftsman 921 4 gal 125 psi compressor and it will not build past 20 psi i do not know how to get to the pistons and stuff what do i do?


The problem with compressors not building pressure is usually a bad pressure switch or bad regulator. Does the motor shut off at 20psi or does it continue running and not build pressure? If the motor continues to run with no increase in pressure, the you should go over the machine looking for air leaks from your regulator back all the way to the motor. Any air leak while the compressor is running can cause the pressure to "peak" way before the intended shutoff that it is regulated to.

Mar 01, 2011 | Craftsman 3 gal. Air Compressor, 1.5 hp,...

1 Answer

Compressor comes on then stops wait a min comes on again and imediatly stops again


If you are using the air supply between when it stops and when it comes on again, then this might be normal. You havent mentioned what model/size compressor you have, but if is only a small 1-4 Gallon tank model, then these dont really hold a lot of air, and if you are using any air tool that uses a lot of air, you will be exhausting the tank supply VERY quickly, so the compressor fires up again to refill the tank.

If the compressor is only staying on for a split second after it fires up again, try plugging the compressor in directly to a wall outlet (ensuring the outlet is properly rated) and avoid using extension cords, which can leave the compressor with little power to overcome the tank pressure to kick over and refill. Compressors are best run directly connected to a main outlet, not via an extension cord.

There may also be a problem with the switching/regulating mechanism for the motor if it is jumping on and off in rapid succession. Check your regulator/tank pressure gauge. Take note of what pressure it kicks back on at, and what pressure it stops at. Many compressors will kick back in when the tank pressure drops to 80 PSI, and may stop when the pressure reaches 100-120 PSI.

I hope that helps!

Feb 13, 2011 | General Air Tools & Compressors

1 Answer

I have a Sears evolv 3 gal air compressor that will not inflate a auto tire, even a partially de-flated tire. I let the pressure build to 100 psi and checked all fittings. Still wil not do it. Compressor...


The evolv air compressor was primarily designed to power a very small nailer. The pressure regulator (knob in front) should be turned clockwise till it stops to attain full pressure. At this setting it should air your tire. If not you may have a defective regulator. There is a trick to get full pressure from your tank. Notice the small pressure safety valve on the side of the unit. You could remove this valve and install a fitting giving you two ports. One for the safety and other for a quick disconnect. This second port will give you access to tank pressure without going thru the pressure regulator. This mod is safe because you still have access to regulated pressure when you need it. Good luck

Jul 07, 2010 | Craftsman 3 gal. Air Compressor, 1.5 hp,...

1 Answer

Pressure in the tank only builds to 30 psi


Bad check valve. But I would check the regulator, by turning it down to about 10 PSI and running it and see if it builds again, if that works then it is the check valve. But from what you are saying I would replace the check valve anyways.

Jun 05, 2010 | Craftsman 3 gal. Air Compressor, 1.5 hp,...

2 Answers

Can not build working pressure pressure......


The most likely problem is a burned out "run capacitor" on the motor. If you continue to try to run your compressor in this condition it will burn out the "starting capacitor" and/or motor as well.
It's also possible that you have a bad start up pressure relief valve, this valve will be between the compressor and the tank. If this valve is working properly you should hear a hiss of air as the compressor motor shuts off.
A reasonable motor repair shop should be able to replace the run capacitor for $20-$50 plus inflation, depending on your area.
If you need to test the start up pressure relief valve, you need to take it loose at the compressor or tank. Just loosening the line may not work depending on the style used. Note: sometimes just taking this loose to test it causes you to have to replace the valve.

May 29, 2010 | Craftsman 1 Hp, 4 Gal. Air Compressor

1 Answer

No air pressure thru quick connect to tools-bag regulator?


I dont know if it is like mine,but if you can let the air out of it and remove the regulator knob,and it`s components,you may can set it to just to be open all the time,in other words,by pass the control knob valve.Shout back at me if I can help.

Nov 06, 2009 | Porter Cable 18 - Gauge Brad Nailer and...

Not finding what you are looking for?
Air Tools & Compressors Logo

Related Topics:

612 people viewed this question

Ask a Question

Usually answered in minutes!

Top Craftsman Air Tools & Compressors Experts

John Trevino

Level 3 Expert

1383 Answers

JOHN LAPIER

Level 3 Expert

2428 Answers

Joe Garcia
Joe Garcia

Level 2 Expert

205 Answers

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

Answer questions

Manuals & User Guides

Loading...