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xs650 > > General Conversation > > I'm just saying... you know > > Help with an air compressor? |
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Help with an air compressor?
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renloy Full Member
Joined: Aug 05, 2008 Posts: 126 Location: 83 Special
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Posted: July 6, 2009, 5:31 pm Post subject: Help with an air compressor? |
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My buddy gave me his old 3hp 20gal craftsman air compressor. The problem is that I think there's something wrong with the regulator. The compressor builds pressure but when I turn the compressor off and open the regulator to release the pressure the air doesn't come out. The only way to release the pressure is the safety valve. Any ideas?
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nudude53 Full Member
Joined: Apr 24, 2009 Posts: 623 Location: Snow Camp, North Carolina
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Posted: July 6, 2009, 5:42 pm Post subject: Re: Help with an air compressor? |
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Northern Tool sells all of the parts necessary to fix it. Regulators, pop-off valves etc. So does Sears.
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renloy Full Member
Joined: Aug 05, 2008 Posts: 126 Location: 83 Special
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Posted: July 6, 2009, 5:46 pm Post subject: Re: Help with an air compressor? |
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So you think its the regulator?
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nudude53 Full Member
Joined: Apr 24, 2009 Posts: 623 Location: Snow Camp, North Carolina
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Posted: July 6, 2009, 5:53 pm Post subject: Re: Help with an air compressor? |
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It's hard to tell without messing with it. The regulator should adjust the pressure to the hose. The shut off pressure is adjusted in the switch. The pop-off valve simply relieves the pressure between the compressor head and the shut off switch.
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renloy Full Member
Joined: Aug 05, 2008 Posts: 126 Location: 83 Special
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Posted: July 6, 2009, 5:59 pm Post subject: Re: Help with an air compressor? |
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Yeah it adjusts the pressure up, but won't drop below 50 ish psi. I turn the knob all the way counterclockwise and the pressure just stays at 50. Unless I'm really confused isn't it supposed to release the pressure when I do that? Sorry about the stupid questions, but I'm new to the air thing
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nudude53 Full Member
Joined: Apr 24, 2009 Posts: 623 Location: Snow Camp, North Carolina
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Posted: July 6, 2009, 6:12 pm Post subject: Re: Help with an air compressor? |
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It won't give you a true reading unless you have air being used. If you are releasing pressure out the hose and it won't fall below 50 psi then it's probably bad.
_________________ 2 TX650's, 1 XS650B and counting |
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renloy Full Member
Joined: Aug 05, 2008 Posts: 126 Location: 83 Special
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Posted: July 6, 2009, 6:29 pm Post subject: Re: Help with an air compressor? |
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Thanks
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pumps 650Rider Supporter
Joined: May 29, 2007 Posts: 1993 Location: Kansas City, Missouri, U.S.A.- 1977 XS650 "D" Standard
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Posted: July 6, 2009, 9:23 pm Post subject: Re: Help with an air compressor? |
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If you had a model number you might be able to get a manual and an exploded parts view and list from sears.com.
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TwistedLeather Full Member
Joined: Jun 04, 2009 Posts: 62 Location: Fort Worth TX
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Posted: July 6, 2009, 10:16 pm Post subject: Re: Help with an air compressor? |
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Does the gauge indicate 0 lbs when the compressor is completely empty? Like someone else stated though, you have to be using the air a little to get an accurate reading. Most larger compressors won't work very well at extremely low pressures, but a secondary regulator downstream from the compressors regulator would probably help a lot. I have two downstream regulators(not in the same line) coming off my main regulator. It really stabilizes the lower pressures.
Butch.
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renloy Full Member
Joined: Aug 05, 2008 Posts: 126 Location: 83 Special
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Posted: July 7, 2009, 12:18 am Post subject: Re: Help with an air compressor? |
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The tank gauge shows 0, but the regulator gauge never goes below 50. Like I said... my understanding is that when you turn the regulator counterclockwise all the way the pressure is supposed to release to 0. Mine isn't doing that at all. I have to use the safety valve to get the tank pressure down to 0
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yamaman Support Staff
Joined: Jan 04, 2007 Posts: 1638 Location: Perth Western Australia
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Posted: July 7, 2009, 7:02 am Post subject: Re: Help with an air compressor? |
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The pressure indicator will only drop if you are drawing from the supply.
If you hook up say a spray gun, you adjust the pressure with the trigger pulled, so air is flowing through the gauge.
Have you used the compressor at all yet (aside from just running it)?
It could probably use a good service. Remove all the fittings & spray some CRC all through it, clean up all the fittings & use teflon tape to reassemble. Check compressor oil, air filters, dust build up in the electric motor.
One thing that often gets left out is draining the tank of water, if it's awkward, people don't do it! While your at it, plumb in a handy drain tap. Cheers
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