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Powermax 45 Gas Setting Not Working

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sjo426
Posts: 12
Joined: Sun Jul 07, 2013 10:31 pm

Powermax 45 Gas Setting Not Working

Postby sjo426 » Sun May 06, 2018 5:01 pm

So recently I've been having issues with the plasma torch firing and over the last week or so the gas setting was becoming increasing difficult to get to come on (turning the amperage knob all the way counterclockwise). I replaced the internal regulator but that didn't work so I thought there might some blockage so I opened the machine and blew out the lines as best I could. The only couple of odd things I see (and trust me I'm no expert at this type of troubleshooting) is that when I blew into the bottom arrow of the pic the air came through the top arrow of the pic. Should the air have come out of the hole to the left?.....as this is where the tube goes to the regulator? And with the cover off and I try to set the gas setting I can hear a clicking where that white box/part/doohickey is in the pic.

Thanks!

Hyper.png

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jimcolt
Elite Contributing Member
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Posts: 2915
Joined: Mon Jul 20, 2009 11:18 pm
Location: New Hampshire

Re: Powermax 45 Gas Setting Not Working

Postby jimcolt » Mon May 07, 2018 8:12 am

You have a dirty, sticking solenoid valve. One of the ports is the pressure to the torch, the other is the bleed down port that releases pressure to the torch so it will refire while in post flow. You could take the solenoid apart and attempt to clean it...or replace it. I'd suggest contacting tech service for any advice! [email protected] or 1 800 643 9878 . Jim Colt Hypertherm

sjo426
Posts: 12
Joined: Sun Jul 07, 2013 10:31 pm

Re: Powermax 45 Gas Setting Not Working

Postby sjo426 » Mon May 07, 2018 11:06 am

So I'm back up and running, and will try to explain as best I can without the terminology prowess of others.....so I removed the solenoid valve and then separated the right side of the valve (see pic) which allowed me to push on the piston (or whatever it is). I could definitely tell it was stuck/sticky so I sprayed a little WD40 down the hole and could work it back and forth. Anyway, while I'm still going to replace, when I put it all back together it was working again.

Thanks for sending me in the right direction Jim!!!

Shane

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