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Old 07-23-2007, 01:58 PM   #1 (permalink)
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Compressor Oil Change

Curious about how often does the oil in a air-compressor need to be changed? I bought my compressor used (well it was still shrink wrapped) but I was not the original purchaser so I don't hav the manual for it.

its a Craftsman 'Professional' model, belt driven compressor. I'm just a hobyist, so I don't use th compressor every day. But I'd say the motor gets ran once a week or so.

So with that said, how long should the oil last? I plan to change it in the near future because its been 6 months since the last change, is that too long?
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Old 07-23-2007, 02:42 PM   #2 (permalink)
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Hell the one we use at work don't see an oil change that often and it is used every day.
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Old 07-23-2007, 05:00 PM   #3 (permalink)
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i deal with contractors and compressors all day long.... i tell guys around 100 hrs. but no one listens to me

seriously, i have guys that dont even change their oil once a year. they are using their compressors from 8-14hrs a day

1 time a year and you should be more than fine
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Old 07-23-2007, 05:28 PM   #4 (permalink)
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Once a year, along with the push mower, weed eater, and all the other stuff.
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Old 07-24-2007, 01:13 PM   #5 (permalink)
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wow no shit huh, guess I'm not so bad afterall.
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Old 07-24-2007, 06:53 PM   #6 (permalink)
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They have synthetic compresser oil now, I get it an McMaster Carr. Stationary compressers that run 4 hours a day or so get changed about every 6 months, and the oil usually looks close to new. In portables the oil gets dirty much faster with much less hourly useage. I think that a really good air filter makes a world of difference in how well the oil holds up. Some compressers have great air filters and really poor crankcase vents which lets a lot of crap in through the back door....in a sense
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Old 08-01-2007, 07:36 PM   #7 (permalink)
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On the Craftsman Pro's (we have 3 of them that I hate!) we like to change the oil every month. No joke but these run hot and they seem to wear alot too! Oil comes out very black even with limited use! If its still new and unused I'd recommend you return it. If you have used it you'd better buy the warrantee. We have had one of them replaced twice under warrantee and now the other one is dead (and no warrantee) along with the first one so now only one is still running and it has been rebuilt once and replaced twice now. Do not let them get hot or run continuously or you will be very sad...

Jason

Last edited by Brutpwr; 08-01-2007 at 07:39 PM.
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