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

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Wont pressure up

It comes on but once it gets to about 50 psi it starts leaking air somewhere inside the housing. Then it wont gain anymore pressure

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Most likely your portercable piston ring/seal broke. Its not hard to fix if you are mechanically inclined. See portercable site for rebuild kit.

Posted on Jan 14, 2009

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Dewalt Emglo 55168 motor starts to slow down as pressure builds to about 30 PSI. It really starts to labor. Any thoughts as to what could be causing the motor to strain and slow?


Most likely in tank check valve is leaking or belt is slipping. Belt tension easy to check, should not deflect with thumb pressure. Check valve should not let air escape out of tank. Easy to check. Run compressor till pressure builds to around 50 psi. Then unplug machine from power outlet. Listen for air leaking out of tank. In bad cases, air will actually leak out of intake filter. Replace check valve as needed. Good luck

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Cbillgreene:

Your compressor is leaking air somewhere between the compressor head and the tank. With the compressor running, feel carefully around the ends of the tube that leads from the compressor head to the air tank. You will probably feel some air leaking around one end or the other. If so... remove the tube and find out which packing has failed.

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My psi is 150 and the tank turns off but my regulator pressure is at 0, this is a brand new tank and never been used before.


Hi scooterb88...
Sounds like your pressure regulator needs adjustment...
Turn the knob on the pressure regulator clockwise and you should start hearing air coming out of your hose...Once air is coming out, remove your hose and keep turning the regulator till you get to your desired working pressure normally around 90 psi...leave your pressure regulator at that setting and it will stay at that setting.
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Sep 17, 2011 | Porter Cable C2002 150 Psi 6 Gal...

1 Answer

Compressor fills with air and shuts off. No problem there,however, once the pressure is obtained and shuts off there is a leaking noise coming from the inside of the motor housing. Pressure drops slowly...


This sounds like a problem with you check valve. This should seal after the air compressor shuts down but if there is a problem with the check valve then it will allow the air to escape back out from the take.

Here is a link to the parts breakdown:
http://shoppingcart.msservicecompany.com/msservice_net/product_files/C2002-WK/C2002-WK%20PD.pdf

You want to check part # 11 A19714.

Thanks

Oct 25, 2010 | Porter Cable C2002 150 Psi 6 Gal...

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I HAVE A PIECE OF EQUIPMENT THAT RUNS AT 75 PSI. I NEED TO BUY A COMPRESSOR THAT WILL HAVE A DUTY CYCLE OF 50%. HOW CAN I SELECT WHAT SIZE COMPRESSOR I NEED?


That is an extremely high pressure. I would firstly check to make sure that THAT is what you need, then MOST compressors have a regulator where you can adjust the pressure required.
It is not so much the pressure you need as the STORAGE of air that you need for a pressure that high. MOST tanks are around the 20 or so litre. To utilise a tool requiring the pressure of 75PSI I suspect you would need a tank of somewhere around the 2-300 litre size or maybe even bigger. But first just make sure that you DO need the 75PSI you mentioned.

Feb 10, 2010 | Air & Gas Compressors

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I have a model FP209501 Air Compressor 2 Gallon,


2 gallons is small to begin with u need to buy an in line pressure adjuster/regulator their a few bucks and can be attached to the paint gun or line and will keep the pressure at ur adjustment the regulator on the tank sets the tank pressure at 50 so when u us it will let it drop down to about 45 than start up to build the pressure up to 50 than shuts off than repeats it self the inline keeps pressure steady even if tanks are at 200 psi

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My PRO-SOURCE air compressor will not go over 50 psi


Your compressor has got a 'ring' problem. The rings on the pistons that compress air are leaking air by them and need to be replaced. Unless it's the 'pressure release' leaking. When it gets to 40 PSI or so, unplug it and listen for a leak. If no leak then it's the rings. inside on the piston. If you adjust the pressure switch all the way low, it might shut off near where it builds pressure to and you could at least use it some.

Sep 26, 2009 | Air & Gas Compressors

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Most likely the pump is leaking somewhere, if the new hose is not leaking. Hoses don't just burst without showing signs or wear and tear, i.e. cracking and splitting. The pump was probably having problems, and this caused the hose to burst. Look for signs of leakage, and if you can't find them, the pump is shot.

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hi you say it wont hold pressure aftwer 50 psi /do you mean it wont make more than 50 psi
take air cleaner off get a piece of plastic pipe that will fit in your ear /braided fuel pipe is ok ,run the comp up ,put one end of pipe in inlet manifold /other end in your ear ,if you can hear escaping air valve is shot do the same with outlet valve if air escape is mimimum rings and piston are shot hope this helps silk090

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Wont pressure up


Check drain plug on bottom of tank, check hose connections on top of tank.

Lugnut61

Jan 14, 2009 | Porter Cable 4 5 Gallons 150PSI Job Boss...

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