Question about Craftsman 3 gal. Air Compressor, 1.5 hp, Horizontal k

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My central Pheumatic air compressor oiless

When i turn on the motor switch of the air compressor it making a ripple noise and the gauges is not moving and no air coming out. How do i fix this problem?


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Sound like the fly wheel is loose or belt is the same

Posted on Mar 13, 2009


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Craftsman Air Comp. 6 hp oil-less, 33 gal horz. tank - sounds really loud

Sources of noise from craftsman oil free compressors (could be Made by Campbell Hausfeld or Porter Cable) include loose fan, failing bearing/s on the piston rod and housing, failing seal ring on piston, air filter intake and loose motor mounts. With the housing cover off, check the fan blade for cracks or loose screw. Turn motor by hand till the piston is at top of stroke. Examine the cylinder for scratches close to top. If scratched, air is leaking past vinyl ring making noise and causing longer fill time. If everything looks ok, suspect noise coming from bearings. Hard to tell if bearings are failing by looking at them. I have seen many failures of the piston bearing on the crank (fairly easy to change, I use alternator bearing from auto parts ) , however, the bearing in the housing just behind the crank bearing is much harder to replacable. Good luck with your fix-it project.

Jun 11, 2012 | Craftsman Air Tools & Compressors

1 Answer

Its pluged in turn the red on/off switch to on but nothing happens

check for a reset button on the motor first. if OK then you would have to unplug and go thru the wiring to find the short.. But usually there is a breaker/reset

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1 Answer

Bought new porter cable oiless boss compressor and want to know what i need to do before operatining it for intial use

The first thing is to make sure the compressor pump has oil!

Run the unit with the tank drain open for 10 minutes to break the compressor and rings in. Let the motor cool for 30 minutes and then use the compressor as normal.
Make sure to change the oil every 50 hours of use

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1 Answer

I have three compressors. Two are oiless and I

It's hard to say what you did to it. The only way to know is to take it apart. As for whether it's worth it or not. You will have to answer that after you see how much damage there is.However I can help with the parts you will need. Click the link below for a list of the available parts for your compressor. I can also tell you there is really not many parts to the pump motor assembly.
I really hope this helps.

Dec 27, 2009 | Porter Cable Cable 4.5 Gallons 150PSI Job...

1 Answer

15 gal. oiless compressor make louod banging noise when turned on, sounds like thrown rod in motor.

The noise really depends on what type of pump compressor motor you have but a lot depends on that.

If you click the link below and scroll though the list for your model, you should be able to find a parts diagram and replacement parts.

If you can't find it please let me know and include the model # you have and I'll find you a diagram.
Hope this helps.

Dec 24, 2009 | Craftsman Air Tools & Compressors

1 Answer

When tank is low on pressure, the motor cuts in but compressor struggles to turn and trips.

some compressors require an air release that drains the pump head when the compressor reaches full pressure if this is not working the compressor tries to start with full pressure on the pistons which is hard on the motor. If you always heard a small release of air when the compressor shut off yours probably had this feature. drain all the air out and if it starts fine that may be where the problem is. If its one of the smaller oiless ones the motor start capacitor is probably bad

Jul 10, 2009 | Psi Air Tools & Compressors

1 Answer

Compressor whining and blowing air. Sounded like engine siezing. 20gal oiless compressor

hi remove compressor unit try motor if ok strip comp hope this helps merlin v12

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