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Re: [Shop-talk] Air compressor took a dump.

To: Dave Cavanaugh <cavanadd@frontier.com>
Subject: Re: [Shop-talk] Air compressor took a dump.
From: Pat Horne <patintexas@icloud.com>
Date: Mon, 28 Mar 2016 08:37:11 -0500
Cc: shop-talk@Autox.Team.Net
Delivered-to: mharc@autox.team.net
Delivered-to: shop-talk@autox.team.net
References: <56F896A6.8010208@frontier.com>
If you blow it down does it turn freely? If so it sounds like the pressure 
relief is not working. 

Peace,
Pat

Pat Horne 
We support Caldwell County Habitat for Humanity


On Mar 27, 2016, at 9:27 PM, Dave Cavanaugh <cavanadd@frontier.com> wrote:

This afternoon my air compressor locked up.  It's a two cylinder 60 gallon 
Campbell-Hausfield that I bought at HD about ten or twelve years ago.  5 HP 
single phase, two cylinder, about 16 CFM at 90 PSI.  The first time I heard the 
belt squealing so I flipped the breaker and got the flywheel turning using a 
pipe wrench.  After a couple of rotations it seemed pretty free so I blew it 
down and it started ok, but when it came up to pressure and stopped the 
flywheel stopped dead; it didn't coast to a stop, and when I tried to start it 
again it was locked up again.

It's not making any more noise that usual, it's just freezing up.  I suspect 
something is getting hot and dragging.  I guess I'll pull the pump in the next 
week or so and tear it down, but I'm tempted to just order a new pump and call 
it good.  This is crappy timing because I'm in the middle of a furniture 
commission and my little portable hot dog compressor won't run my Dynabrades, 
plus I'm moving in about a year and building a new shop, which will have a new 
7.5 HP, two stage compressor.

Yes, there is oil in the sight glass; in fact I just changed the oil a couple 
of months ago.  I used some 20 Wt ND I had on hand; probably should have used 
Mobil One....but what color cap?

Advice, opinions, suggestions?
thanks
Dave
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