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Tool Talk Discussion Forum

Welder Problem

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Fritz

09-04-2004 12:27:16




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I have an old "airflow" 240 welder/generator. It has worked fine until recently. I"m not getting any juice to my leads and cannot figure out why. Is there anyway to trouble shoot this to save a trip to the shop?




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Scottp

09-04-2004 18:59:53




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 Re: Welder Problem in reply to Fritz, 09-04-2004 12:27:16  
Fritz
Check and see if the brushs are still making contact with the rotating unit. If not you may have to replace them. Sometimes they will stick from dirt and dust. If you need to replace sand the area where the brushs ride with some 220 grit sandpaper. Its best to sand it with the motor running. Just attach the sandpaper to a stick and press on the comutator. You want to clean off any burnt or discolored areas, make it brite and shinny. Just be very careful not to get anything cought on the rotating unit, like your shirt sleeve. Also look for a blown fuze. Check the fuze with a ohm meter to make sure they are good.
Scott

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Fritz

09-06-2004 01:23:45




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 Re: Welder Problem in reply to Scottp, 09-04-2004 18:59:53  
I took off the shell of my old air flow welder and thought mice had been having at the wire casings, everything seemed in place with no damage. The brushes were in good shape and the fuze was fine. I"m at a loss. Also, when I flip the switch from weld to power, it dies. I used a meter on the connection ports and get no signal. Is anyone familiar with this old type welder?



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Scottp

09-06-2004 08:28:42




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 Re: Welder Problem in reply to Fritz, 09-06-2004 01:23:45  
Fritz
It sounds like you may have to take it somewhere and have it fixed. It's pretty hard to trouble shoot with out a print or the machine.
Scott



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TimFL

09-04-2004 14:43:00




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 Re: Welder Problem in reply to Fritz, 09-04-2004 12:27:16  
Have had trouble with my ranger 8 breaking legs on the back of the amp switch. Open it up and look for anything loose or broke in the wiring.

Tims$.02



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