Question about Porter Cable 4 5 Gallons 150PSI Job Boss Oil Lube Mobile Air Compressor ? C3551

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When I plug in my Porter Cable job boss compressor it barely turns over and usually blows the breaker. Any thoughts?

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If this happens with no pressure in the tank then you may have a bad start capacitor on the motor.
If this only happens after the tank is full of air then you need to make sure the check valve is working and releasing the head pressure from the lines.

Posted on Sep 28, 2010

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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

Sep 26, 2010 | Porter Cable 4 5 Gallons 150PSI Job Boss...

1 Answer

I cannot turn the drain plug valve to shut it off so air pressure will build up in the tank. I can remove the whole plug but not the inner valve. What direction is it threaded?


Drain plugs are standard npt thread and are removed by turning counter clockwise. New drain plugs are available at lowes for under $4. Good luck.

Sep 13, 2010 | Porter Cable 4 5 Gallons 150PSI Job Boss...

1 Answer

UNLODER DOESNT RELEASE BOGS DOWN BLOWS FUSE


the non return valve to the tank is certainly the next thing to look at .

Jun 06, 2010 | Porter Cable Cable 4.5 Gallons 150PSI Job...

1 Answer

Job boss compressor wont run


have you checked the motor reset
will be on the motor

May 10, 2010 | Porter Cable Cable 4.5 Gallons 150PSI Job...

2 Answers

Does not auto turn off


Sounds like the pressure switch is shorted together. Unwire the switch and see if it shuts off.

Apr 08, 2010 | Porter Cable 4 5 Gallons 150PSI Job Boss...

1 Answer

My c3151, loads to tank fine then the unit will cut in and out. The unit will trip a breaker. Is this an easy fix?


the line from the compressor to the tank should have a check valve .so that the compressor head does not have pressure for easy start up... check and replace if needed. when compressor attempts to start its to dificult with the pressure, causing circuit overload.

Jan 12, 2010 | Porter Cable Cable 4.5 Gallons 150PSI Job...

1 Answer

My porter cable pancake compressor keeps blowing the circut breaker. This is a new problem and it still does it on a 20 amp circut. Help...Thanks


hi!
there are several factors we can consider it comes from short circuited.if you did not rewire the circuit its fine,but if you rewire the circuit and it happen there is wrong connection it may happen every time you power on,check your connection the common line of the motor should as your L1(line 1) and line2 should connect to line capacitor w/c that is your starting capacitor.the pressure switch should be in series connection with line 1 or on line 2
check also the bearing of your motor if worn out replace bearing,because the worn out bearing develop hi ampere it shorted also the electrical system if there is sticky bearing.check also your capacitor if busted capacitor it will also open your breaker besause it can not start up.hope this can help you.

Aug 09, 2009 | Porter Cable C2150 2 Hp 4 Gallon "Job...

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