Air Compressor "Hissing"


Old 02-02-11, 08:30 AM
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Air Compressor "Hissing"

I have an air compressor Campbell Hausfeld one on wheels that looks like an older model of this.

I bought it used and used it to attach baseboards in several rooms and occasionally will use it with a palm nailer.

Recently I hired a contractor to work on a project and he used my compressor for his work, which I did not object. The only problem was he did not seem to be careful about any tools he touched. One time I saw him not having enough hose length when he moved to the next room, he dragged that heavy compressor over by pulling on the hose.

Now that he is gone and I need to use my compressor, I noticed it stays LOUD ALL THE TIME. The air tool still seem to work, but it used to be LOUD for a minute or two, then stay quiet for a while when I work, then it goes LOUD again in cycles. Now it is being LOUD constantly.

I checked the hose, and I can hear hissing where the hose is connected to the gauge. The gauge has a female threaded connection. To that I connect several quick release fittings then the hose. The hissing is there and there seem to be air leaking out of there, but I can't tell which one as the fittings are all together.

I am guessing his dragging the compressor around by pulling the hose has damaged these fittings, and the air leak around the fittings is causing the compressor to constantly recharge because it could not maintain the pressure?

I am going to buy all new fittings and may be the gauge too and see if it solves the problem. But I wanted to check in here first, does it seem plausible the air leak around the quick release fittings being the reason the compressor is constantly charging or there may be other reasons?
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Old 02-02-11, 09:07 AM
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Yep, this sounds plausible to me

You've also outlined the reason I don't let anyone else use my tools
Old 02-02-11, 03:53 PM
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You probably just need to replace the quick disconnect fittings. Assuming that's the problem the hissing should get worse or quite down when you wiggle the hose. Don't forget to use some teflon tape on the threads.
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