How often do you change the oil on a portable compressor? (I assume it has to do how often it is used)
I have also noticed that after my compressor sits for a few weeks used and then used again the water that sprays out the bottom when the tank is emptied is rust tinged. I drain the tank everytime I am finished with it. Is there any addative to the tank to prevent rust? Can you spray WD-40 into the drain valve? (then empty before using)
I love my machine and I would hate to see it rust away when I don’t use it. (Even bought a dehumidifier to keep the tools dry.)
Replies
Hi,
My Dewalt/Emglo recomends every 200 hours or at least once a year, but especially after the first 20 hours change it.
I'm guessing you really can't do it too often either and severe condtions may increase the frequency.
On the rust question I'm curious if any one ever tried that product you get from the auto body supply stores that turns rust into a..well...non rust material. Sorry I forget the name but I found it at the pro auto paint stores. I used it on a cheap van I was cleaning up and it's a water like liquid that's sprayed directly on rust-no scraping or sanding. The result is a hard black epoxy like surface that's permanent. I've heard of guys spraying it in door panels that are un reachable with good results. Seems like it would be ideal for this sort of application.
How long do compressor tanks last? Any other simple tasks to make them more durable?
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I have a twin tank emglo that is about ten years old. I have only changed oil once, and that was when it was new. I use it all day an average of 3 days a week. I dont recommend treating it that way but changing oil in the compresser is not high on my priority list. I do drain it every week or two.
Don't know the source for it, but start looking at better motorcycle shops. There are products designed for coating the inside of the gas tank when you drain it for the winter to prevent corrosion. It's a liquid that you pour in and 'swish' around to coat the inside of the tank. Might help, just a thought. If it works let me know. Sometimes it pays to think outside of the box.
Let's not confuse the issue with facts!
go to large auto parts store and find an aerosol can that rust proofs cars make sure tanks are well drained then uncouple copper tube spray generous amount with an extension tube. then reconnect the tubes move the tanks around so it will coat interior surface drain it and let it dry. ive had mine since 1986/ a wife ago and is treated like a red headed step child. changed the oil maybe 6 times. there great compressors. even froze up once put a little oil in head lossened it up let more oil seep through. and it still running. you got a sweety there take care ...b
Edited 7/29/2003 8:57:54 PM ET by the bear