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Manage My Life

Can you tell me how to adjust the auto shut off on a craftsman air compressor?

by Manage My Life Last activity date:
December 13th, 2010

I just purchased a new pressure switch for my craftsman air compressor. the model is 919.15294. the compressor now stops filling with air at 140 psi. is this pressure safe? the old switch would stop the compressor from filling at 120 psi. if 140 psi is not safe can you explain to me how to adjust it to stop filling at 120 psi?

Air Compressors , Craftsman , Tools
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Manage My Life
Can anyone tell me how to put the switch back together? I stupidly took it apart to clean the contacts and now I have no idea how to get it back together. There is a flat black plastic piece in there that I can figure out how it fits back in.
When I switch on the the compressor it will run for about a second and then the house breaker will trip. Also, I don't even think that was the problem. It has been working well for the past year. I have been doing a major project in my basement and was using it for an air nailer. It worked great. I haven't used it for about two months. I tried to use it this week for a finish nailer and now it won't run. I did get very dusty from the drywall dust. Any ideas? Thanks, Tom
by Manage My Life
December 13th, 2010
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Manage My Life
The compressor pumping to 140psi is safe. It would take way more pressure before something would blow out on the compressor or tank.

The pressures that a switch will shut down the unit can vary from switch to switch. I wouldn't worry with it as long as it never goes to over 160-175psi. Generally if your switch is shutting it down at 140 it's always going to do that. Over time, it could get to where it shuts it down before 140, but I don't think I've ever seen one that increased over time.
Answered in 18 hours
by Manage My Life
June 4th, 2009
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