Hey guys, ive got a 2005 Miller pro 300 with 3500 hrs on it. Has seemed underpowered lately so we hooked it up to a load bank and it only hits 280 amps. It has a max rating of 405 at 30% duty cycle. Hoping someone here might have some ideas.
Thanks
Chad
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Thread: Pro 300 problem
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04-12-2012, 07:06 AM #1
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Pro 300 problem
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04-12-2012, 10:20 AM #2
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Had a new one in here yesterday, unloaded it could only put out 280 amps, after 3 hrs of loading it hit 380 amps but that was about it.
Yours i likely a engine RPM issue if it han't been in for service in a while.
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04-12-2012, 11:12 AM #3
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Thanks, just checked rpm, your right it is about 1600 loaded. I think thats about 200 shy. What do you think would likely cause this.
Chad
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04-12-2012, 05:17 PM #4
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Unit breaks in, and RPM decreases, quite normal. Thats why you have to have a good relationship with your Miller repair depot, and bring it in for service once in a while. Thats why I have many loyal customers.
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04-12-2012, 10:17 PM #5
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What causes the drop?
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