Question about Air Tools & Compressors

1 Answer

Kobalt air compressor will not go above 80PSI

Motor/pump keep running forever but the tank pressure will not go higher then 80 psi, I can't hear any leaks when I turn it off.

Posted by on

  • 6 more comments 
  • avandewaal Jul 24, 2009

    The unit is about 1 year old. I have used for an air hammer to remove stucco for my window replacement project so far i have replaced 5 windows.

  • avandewaal Jul 26, 2009

    tnx for all the comments, very helpful. In this model I can find the pressure switch, displayed here (part 0009)http://www.mastertoolrepair.com/vlk15826...

    is that the part you refer to as pressure valve? I checked the intake for the cylinder and there does not seem to be a filter, see same website for pics. Just want to make sure before I order new parts.

    thanks again.
    Arthur

  • avandewaal Jul 26, 2009

    tnx for all the comments, very helpful. In this model I can find the pressure switch, displayed here (part 0009)http://www.mastertoolrepair.com/vlk15826...

    is that the part you refer to as pressure valve? I checked the intake for the cylinder and there does not seem to be a filter, see same website for pics. Just want to make sure before I order new parts.

    thanks again.
    Arthur

  • avandewaal Jul 26, 2009

    keeps going.

  • avandewaal Jul 27, 2009

    The fault is in the motor? the motor runs fine, or do you mean the pump/cylinder? I suspect the piston/compression ring is faulty, however there are no spare parts for that piece. i can take it apart by myself but don't know what to look for. Do you think the pressure switch is OK?

  • avandewaal Jul 28, 2009

    hi there any comments?

  • avandewaal Jul 31, 2009

    Since the phone number in the kobalt manual was not working,I called Lowe?s, they gave me a phone number of the manufacturer. The company which made my kobalt went bankrupt and they were taken over by this other company however the warranties were not included. Called lowe's again, they were very friendly and escalated the issue to a manager. A few hours later I got a call from my local lowes store, they told me that had set aside a similar compressor which I could pickup. I went to the store and Lowe's offered me a full store credit refund, which I used to buy a new compressor. I decided not to buy a kobalt but spent a little more and bought a Dewalt. Thanks Lowe's, that is customer service!

  • avandewaal Jul 31, 2009

    Since the phone number in the kobalt manual was not working,I called Lowe?s, they gave me a phone number of the manufacturer. The company which made my kobalt went bankrupt and they were taken over by this other company however the warranties were not included. Called lowe's again, they were very friendly and escalated the issue to a manager. A few hours later I got a call from my local lowes store, they told me that had set aside a similar compressor which I could pickup. I went to the store and Lowe's offered me a full store credit refund, which I used to buy a new compressor. I decided not to buy a kobalt but spent a little more and bought a Dewalt. Thanks Lowe's, that is customer service!

×

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 867 Answers

If this is an older or much used unit, cylinder/piston may be worn, unable to push higher psi, which would explain no leaks. if newer unit, seems like regulator unit/valve faulty

Posted on Jul 24, 2009

  • 2 more comments 
  • bozcro
    bozcro Jul 25, 2009

    the regulator pressure valve just off the cylinder is not working good, needs to be replaced. but just in case all that dust from stucco may have clogged the air intake filter. try removing filter and see if pressure builds up

  • bozcro
    bozcro Jul 26, 2009

    after reading everything carefully, one more question. does the pump ever stop? stop at 80 or just keeps going?

  • bozcro
    bozcro Jul 26, 2009

    i checked all the data, if motor keeps running, no leaks, the fault is in the motor, part no 12, but it does not need replacing, your motor has a problem, it needs to be checked out, its a small part with in the motor, rather than buying a whole motor assembly, i would recommend having it repaired rather than spendind the 250$+. i looked over the drawing you supplied, motor is in one large segment.

  • bozcro
    bozcro Aug 01, 2009

    im glad you got your money back, this unit needed a internal motor repair, so this was the best possible outcome

×

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 there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

Compressor runs but only pumps 40 psi


Check your regulator to make sure its set to maximum. When was the last time you drained the tank, it may be full of water.

Mar 24, 2015 | Psi Air Tools & Compressors

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

My kobalt 80 gallon air compressor won't turn on


BE CAREFUL! Jump the pressure switch and see if it starts. If so, replace the switch. If it doesn't start but hums, cut the power and try to turn the compressor by hand. Free it up if possible. If it does not hum, look for a reset on the motor or a blown fuse or breaker.

Dec 14, 2013 | Kobalt 5.2 HP 80-Gallon 175 PSI Electric...

1 Answer

I have a 26 gal oille3ss air compressor model WL650703Aj. I will not pump up only to about 100 lbs, keeps running but will not register any higher pressure. Have no idea what to do about this problem


If you're getting to 100psi but not high enough for the pressure switch to turn the motor off, check the following:
Run the pressure up then turn the motor off and check for leaks at all hose, nipple, valve, etc. joints on the tank and pump. Watch the tank guage to see if you're losing air with the motor off.
Check the valve plate and piston & cylinder assemblies. If any of the reed valves on the valve plate are damaged or warped they'll let the compressor go about as high as you're getting then leak too much to go any higher. If the ring on the piston is damaged or the cylinder is badly scored the same thing will result.

Jul 07, 2012 | Air Tools & Compressors

1 Answer

I have a 2 gallon compressor , no air comes out?


Check if air intake is clogged.
Check if drain valve on tank bottom is open or closed.
Look at pressure gauge and see if pressure is zero.
Adjust pressure so tank will hold 80-120 psi.
Check air lines between compressor and tank to see if they are leaking. Listen for leaking air while motor is running.

Jun 24, 2012 | Campbell Hausfeld Air Tools & Compressors

1 Answer

Compressors


The pressure regulator on an air compressor is designed to let the pump motor run until the pressure in the tanks reaches their safe level. While you are using the air the pressure drops in the tanks until it reaches the level where the pressure switch turns the motor on again and refills the tanks to their rated level. The pressure where these two things happen is usually with in ten psi above or below the rated levels because few regulators are so precise and are affected by temperature that they turn and off exactly at the rated pressures. If a pressure regulator is damaged or broken it is possible for the tank to either reach unsafe high levels or not turn on when the pressure drops to where it should restart the motor. If you are in doubt, have the regulator checked or replaced as overpressured tanks are very dangerous.

Jun 24, 2012 | Craftsman 150 PSI Air Compressor

1 Answer

My kobalt air compressor model#215914 won't stop running is it suppose's do that?


All compressors run up to their rated high pressure level, usually listed on the data plate on the compressor or in the manual, then the pressure regulator turns them off. If your compressor is not shutting off it is either not getting to the pressure it takes to get the pressure regulator to turn it off or the pressure regulator is broke and won't turn the motor off. To check which, turn the compressor on and watch the guage that shows tank pressure. If the pressure rises then stops at a level below the rated pressure for your compressor and the motor continues to run, you have a leak somewhere. It could be the tank drain valve, the lines from the pump to the tank, the valve plate or in the piston cylinder area. If the pressure rises more than ten psi above the rating for your tank, your pressure regulator is broke or possibly set too high. If you know how, you can try lowering the shutoff point to see if that fixes it but you're usually better off replacing the regulator.

May 09, 2012 | Air Tools & Compressors

1 Answer

My Craftsman air compressor has wored fine till now. It does not want to build up pressure beyond 50 psi.yes I did check the drain valve and no leaks. Motor seems to be putting out the rpm's and the oil...


Check for a leak between you compressor head (pump) and your tank. Your pump output may be good but as your tank pressure gets higher the leak will not allow the tank to build up.

Feb 04, 2011 | Craftsman 1 hp Air Compressor, 4 gal. -...

1 Answer

I have a 24 gallon. motor starts and pumps but it takes forever to fill and the pressure comming out cannot be regulated


Nothing makes me grunt like "Tim the Tool Man"more than having a air tool in my hand." More Power!" The first (andonly) compressor I ever bought was used and failed to build up pressure. I hadlittle idea how it worked. Anyone with a little mechanical knowledge can workthrough it with the parts manual. The. Coleman Powermate Manuals are here. With the parts manual your search will befruitful. Do a internet search for suspect part numbers. You will find suppliers. OneI've used is "Arkansas Outdoor Power Equipment" They have many parts list for you to dig through. The odds are there is a "Tool Supply and/or Repair" in your area where you can take your defective part.

Diagnostics: After you let it pump for a couple minutes turn it off and listenfor leakage.Listen quick and close. If it is leaking bad it may only be obvious for a couple seconds.

Lines and connections can leak. The Regulator (adjustable knob) can leakinside. The "Pressure Switch" can leak (usually at the valve bleeder). If it's under pressure it canleak. All leaks must be fixed. All these parts can be rebuilt or replaced. The "PressureSwitch" controls at what (low) pressurethe compressor kicks on and what (high) pressure it stops compressing.A compressor that pumps and fails to build up the pressureis leaking air as it pumps. Watch the gauges as it pumps. Does it reach acertain pressure and then no higher? If you do not hear leakage when it is offbut it fails to build up 80~90 psi in a reasonable amount of time it is quietlikely it is leaking at the piston as it pumps. A (piston assy, O Ring, and cylinder)repair kits is available online. Or you can check with local "Toolsservice/sales" stores for parts.

Remember a dusty environment requires the filter element becleaned more frequently. Run it without a filter and you'll be replacing thepiston assy sooner.
Repairing it yourself is much more manly (and less expensive) than replacing it

Jan 11, 2011 | Coleman Powermate 11 Gallon Air Compressor

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

Related Topics:

1,227 people viewed this question

Ask a Question

Usually answered in minutes!

Top Air Tools & Compressors Experts

John Trevino

Level 3 Expert

1388 Answers

JOHN LAPIER

Level 3 Expert

2527 Answers

Brad Brown

Level 3 Expert

17164 Answers

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

Answer questions

Manuals & User Guides

Loading...