Question about Coleman Powermate Premium Plus 6250W Portable Generator

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How do i flash charge my 7500 watt generator - Coleman Powermate Premium Plus 6250W Portable Generator

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Remove the end case on the generator end, locate the brushes and also the wires going to the brushes. Crank the engine while measuring the voltage on the brushes, note which lead is B+. Disconnect the brush wires and isolate. To flash the rotor you will need a battery wires with an in line fuse, connect the wires noting B+ to the right brush where you measured earlier (polarity is critical) then toucj on the battery for approx 3 - 5 seconds, this will rebuild the field in the rotor. Disconenct and re-assemble brush wires. When you start generator do not add any load for a while, until the rotor field has chance to re-saturate

Posted on Nov 23, 2013

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Posted on Jan 02, 2017

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CarlGehrke
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SOURCE: i wave a powermate 5000 watt generator it runs

Try reversing the polarity of the battery you're using to flash the generator. Also try running the generator for about 30 min with a load on it after flashing.

Carl

Posted on Mar 04, 2009

protek480
  • 1723 Answers

SOURCE: no output voltage at all

The generator needs to be 'flashed' to bring back the excitation for output. Is this something you can do? Let me know and I can help you...

If you need further help, I’m available over the phone at https://www.6ya.com/expert/craig_3fa289bf857b1a3c

Posted on Sep 11, 2009

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1 Answer

My 7500 watt generator doesn't produce any power


If it has sat, it may have lost it's rotor residual magnetism. Disconnect the rotor field wires at the AVR or on the exciter/brushes. Note they are polaroty sensitive. Connect a 12V battery to F+ and F- (note polarity) and momentarilly power from the battery for a few seconds. DO NOT forget to disconnect the rotor/exciter field wires first or the voltage regulator will be damaged. If it hasn't sat check voltage regulator, rotor resistance, and stator resistance, and for shorts to ground.

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No output voltage at all


The generator needs to be 'flashed' to bring back the excitation for output. Is this something you can do? Let me know and I can help you...

If you need further help, I’m available over the phone at https://www.6ya.com/expert/craig_3fa289bf857b1a3c

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1 Answer

I wave a powermate 5000 watt generator it runs fine but dosen't charge if i flash the generator brushes it will charge fine until i shut it off whrn i restart it it wount charge again unless i flash it...


Try reversing the polarity of the battery you're using to flash the generator. Also try running the generator for about 30 min with a load on it after flashing.

Carl

Mar 04, 2009 | Coleman Powermate Premium Plus 6250W...

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