Question about Craftsman 25 gal Air Compressor 3 12 hp Vertical k 2 Stage Oil Free Pump

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Model number 919152811 5 hp 2 stage oil free pump. Pressure gets to 20 lbs motor keeps running without any increase in pressure. The compressor noise seems louder now

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: air compressor 3 gallon

When I turn compressor on it does not build up any pressure ?

Posted on Oct 25, 2008

  • 89 Answers

SOURCE: tank will not build pressure beyond 25 lbs. Just runs

IS YOUR AIR FILTER CLOGGED. SOUNDS LIKE THE VALVES IN YOUR HEAD ARE NOT CLOSING ALL THE WAY. THEY ARE MOST LIKELY REED VALVES, THIN STRIPS OF METAL THAT OPEN AND CLOSE WHEN THE PISTON MOVES. MAKE SURE THEY ARE CLOSING ALL THE WAY (NOT CARBONED UP). DID YOU REMOVE THE HEAD AND DID YOU PUT BACK LIKE YOU FOUND IT - NOT TURNED OR FLIPPED OVER. SEE IF YOUR FINGER WILL GET SUCKED UP TO THE INTAKE HOLE.

Posted on Apr 12, 2009

  • 225 Answers

SOURCE: Pressure builds to 20 lbs- and wont go any higher and motor runs

sounds like the regulator is fualty.

Posted on Jul 30, 2009

protek480
  • 1714 Answers

SOURCE: WILL NOT BUILD UP AIR PRESSURE PAST 20 LBS.

Check to see if air is leaking past 'pressure relief' valve. It's probably leaking and that's where all the air is going.

Posted on Sep 11, 2009

  • 170 Answers

SOURCE: motor runs pressure stays around 25psi

if they are oilless compressors then the rings are worn

Posted on Jan 15, 2010

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1 Answer

Dewalt d55153 runs continually trying to get up to pressure, but can't.


Just a guess but I think you have broken the rings inside. If you keep running it with broken rings you will trash the cylinder inside. I think you can buy a new pump for it if you are not mechanically minded.

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I have a Craftsman compressor Model # 919-15292 2. The compressor stopped building pressure because air was continually being released through the unloader valve. I have replaced the unloader valve,...


you must have wired the new pressure switch incorrectly .when the pressure switch opens it will release the head pressure so your compressor must be running with the pressure switch contacts open should be 4 connections 2 marked motor which is from your compressor and 2 marked line which is your power coming in

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Compressor starts innitially,then when pressure gets low it trips breaker when it tries to start back up.20 amp breaker to light switch to compressor is about 2o ft on12-2 wire. tried 30 amp breaker,does...


the start capacitor on the motor body is weak,the motor needs this component to over come the air pressure when cycling to re-build the low air pressure,change both the start and run capacitors when doing the start because the other run capacitor is just as old and it will soon fail

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The tank fills with air, but the motor doesn't shut off. It continues to run.


Pressure switch is stuck on, dont use this until its fixed!!!!!, you could overfill the tank with excess air, it could be adjustable or the switch may need cleaning/replacing.

Mar 09, 2011 | Craftsman 25 gal Air Compressor 3 12 hp...

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Hi,I got a Ingersoll Rand type 30 model 234 compressor.It looks good but it has no motor.I'm thinking like 120v,3horses?,but not sure about rpm.any help would be nice.thanks


According to the information you provided your looking at a 10 HP motor at three phase. Do you have three phase at your location? If not I would look into getting a single phase compressor. If you do want to get it going I would notify your local IR dealer so they can get you the right Model number, RPM, Pulley and Motor Frame Size to match your unit.

Please read below....Jim...if this helped you please send me a positive response...Thanks!


Ingersoll-Rand Type-30 Electric-Driven Two Stage Horizontal Air Compressor - 120 Gallon - Fully Packaged IR 2545E10VFP
  • Designed for heavy shop or industrial use, Ingersoll-Rand Two-Stage electric air compressors provide the quality and performance that are ideal for most applications and users, including: automotive service and body shops; fleet maintenance; machine shops; production and manufacturing lines; construction; wood working shops; dry cleaners; car washes; maintenance/repair shops and farms.
  • Durable cast-iron, two-stage design offers extended pump life for years of trouble-free service 175 PSI maximum operating pressure
  • 100% continuous duty for tough applications
  • Automatic start/stop control/pressure switch operation
  • Includes motor starter, oil sight glass (10-15 HP only), manual drain and ASME tank
  • 10HP, 3 Phase 200, 230 or 460 Volts
  • 120 gal, horizontal tank
  • 35 ACFM @ 175 PSI

Feb 14, 2011 | Ingersoll Rand Type 30 Electric Driven Two...

3 Answers

Compressor runs to 175psi but trips pressure relief when pressure drops tries to restart motor but motor wont turn blows breaker. changed whole pressure switch have same problem.


The problem is lilkely the check valve between the compressor and the tank -- it is alowing pressure to build from tank to compressor preventing the compressor from turning over. Clean, maybe replace, check valve...

Charlie

Jan 09, 2011 | Craftsman 25 gal Air Compressor 3 12 hp...

1 Answer

I have a 5 gal, i hp craftsmen compressor, 3 years old, used once a year to blow down sprinkler system. Compressor ran up to 120 lbs upon turn on, would not cycle off. manually shut off unit and turned...


Oil free pumps do tend to blow the piston ring (not too expensive) available at searsparts.com. Remove covers to pump and manually turn crank until piston is at top and look at the condition of the cylinder neer top, If it looks scratched, order cylinder kit with piston ring. If it looks good and shiney, could be the valve plate in the head. There are reed valves that tend to break. Run pump however with covers removed and check with soapy water for air leaks and repair as needed (air leaks under the cover will prevent unit from filling). Good luck

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1 Answer

I have a 5 HP Coleman air compressor. I was using it to provide air to my plasma cutter which requires 60 psi to operate. Basically, air compressor's motor keeps running, but it's stopped creating air...


You did not list model number, however if you have oilless type check the cylinder/piston by manually turning crank until piston is at top and examine cylinder for wear or scratches. If worn replace cylinder kit for full pressure. If ok check reed valves /valve plate for wear or broken reeds. If oil bath type, problem is usually air leak or reed valves / valve plate. As a general rule, you can keep track of wear by noting how many minutes it takes to fill the tank to cut-out. As the compressor wears it will take increasingly longer to fill. When new, and depending on tank size/ hp, most compessors fill within 2 ~ 5 min. Good luck

Sep 24, 2010 | Coleman Air Tools & Compressors

1 Answer

Motor comes on, but air pressure does not go up.....will never get above 20 lbs of pressure


you have to adjust the regulator usually turning clockwise increase the pressure.

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