I have an older Bobcat 225 with a lot of hours on it. During the middle of a weld the arc quit. The engine is tuned and runs great. Someone mentioned that I should test the reostat (it checked out fine 2 - 12 ohms). The machine will arc but only to a samll degreee, just enough to get the rod end red. Just Wondering is anyone knows of what may be causing this. Thanks for you help.
Mack
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Thread: Problem with Bobcat 225
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12-05-2006, 06:56 PM #1
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Problem with Bobcat 225
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12-05-2006, 07:27 PM #2
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Have you checked the brushes? SSS
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12-05-2006, 07:47 PM #3
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I have checked the brushes. The AC power otlets are testing at the correct volts.
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12-05-2006, 08:49 PM #4
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I'd take a look at the diodes next.
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12-05-2006, 09:59 PM #5
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Big problem
Grab a circuit diagram, put it under load and start tracing backwards until you find it.
BOLTriggerman
Ammonia refrigeration tech
Trailblazer 302 (yes, it's new)
Millermatic 180 w/Autoset
CST-250
HF-15 High frequency
XR15 w/Push-Pull Gun
Victor O/A, DeWalt, North mask
"A professional knows what to do. A craftsman knows why."
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12-05-2006, 10:04 PM #6
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My low output was due to a dead capacitor.
70 bucks later and I was up and burning.
Don
'06 Trailblazer 302
'06 12RC feeder
Super S-32P feeder
HH210 & DP3035 spool gun
Esab Multimaster 260
Esab Heliarc 252 AC/DC
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12-06-2006, 06:48 AM #7
Senior Member
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Good for you!
Congrats on finding/repairing your prob.
Triggerman
Ammonia refrigeration tech
Trailblazer 302 (yes, it's new)
Millermatic 180 w/Autoset
CST-250
HF-15 High frequency
XR15 w/Push-Pull Gun
Victor O/A, DeWalt, North mask
"A professional knows what to do. A craftsman knows why."
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