Question about Coleman Powermate Premium Plus 6250W Portable Generator

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Where can I locate brushes for this generator- 5000-6250

SN96450696
Power 5000-6250 model pm0545007.03

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Here is a web site that you can get brushes at.
http://www.jackssmallengines.com/coleman_generator_brush.cfm

Posted on Dec 16, 2008

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2 Answers

No AC power when running


Check for any fuses and/or reset buttons - check manual. If all is copacetic then the issue is with the generator itself.

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Why does generator run and does not produce electricity?


You need to determine if it is a Brushed or Brushless generator and follow the tests on the link below. (You will locate the brushes on the end of the alternator in a 12o'clock position if they are fitted).

http://www.generatorguru.com/help-me-fix-my-generator-repair-advice/

Then contact Generator Guru with the results and they will let you know what needs replacing. This is a free service.
http://www.generatorguru.com/help-me-fix-my-generator-repair-advice

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My coleman powermate model#pm0435005 generator has no power after cleaning and putting brushes back on.


make sure you got them mounted correctly and the brush wires on the correct brush, they are polarity sensitive. Failing that you need to re-flash the rotor with a battery, and a diode. This will re-establish the residual magnetism for rotor

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1 Answer

Where are the exciting field wire fuses located


Try putting 12 volts DC across the commutator coils at the brushes, sometimes the generator looses it's magnetic field and this could possibly restore it but make sure it is a low current not a car storage battery.

Good luck,

Marty

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My eg2800 generator is putting out 150 volts, why


Loaded circuit or open circuit? If loaded, brushes need cleaning before buying parts. Check manual for procedure on your model. The brushes are usually culprit. Make sure cleaned and tension springs are free. Use compressed air to clean out armature area where brushes located. Re install and test. If better but not fixed replacement brushes may be needed. If open ckt voltage is high this could be normal. Suggest you email product support to be sure.

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Hi i have a Powermate model PM0496750, 6750 Black max Generator it will run for 3 hrs then stop generating ,,if i clean the frets on the rotor where the brushes runs on it will go for another 3 hrs ,,, I...


I doubt its anything to do with brushes unless power system has shutdown incorporated, could ignition coil breaking down when it gets really hot or similar check the oil level cut out switch

Oct 05, 2013 | Coleman Powermate Powermate 5000W...

1 Answer

Where is the brushes located?


take the end cover of the generator alternator, and you will see the brush block assembley where it touches the rotor slip rings, clean the rings while you have it open

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How do i flash charge my 7500 watt generator


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

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1 Answer

GENERATOR WILL RUN BUT DON'T PRODUCE ELECTRIC


Hi and welcome to FixYa, I am Kelly.

Without a model number... I am guessing about what type / brand and MODEL of generator you have. I have to assume it is a Coleman Power mate.

Try flashing the field. Do this.. take and electric drill and plug into the outlets of the generator. Turn on the output power GENERATOR ON. Squeeze the drill trigger and rotate the chuck as fast as you can. This will induce voltage into the stator and they usually will start producing power. When it does produce power it will try to yank the drill chuck head out of your hand so keep that in mind.

If the above does not work...
Remove the small cover from the center of the endbell. It covers the end of the rotor shaft and has 2 brushes under the cover.
INSPECT the brushes visually (do not remove them yet)
(Generator OFF!)
Use a meter to read resistance by probing the electrical contacts of the brushes. You MUST read LOW resistance. This is the rotor winding.
No resistance or high resistance
Remove the brushes inspect for damage. Try to probe the slip rings of the rotor. (You might have to make a 14/2 Romex electiral wire extension to get some solid copper wires to touch the rotor slip rings) Again you must read LOW reistance.

If you have low resistance and the brushes are good.....
Reinstall the brushes. (TEST for AC) Start generator
STILL NO OUTPUT?!!!!
Use a meter on DC to read AVR voltage output to the brushes by probing the brush terminals. You should read 3 - 7 VDC. No voltage.... hmmmm Possibly an AVR problem but...

Try this.
Rig up a 9 Volt battery that you TAPE the wires to the battery terminals and the case of the battery
Just loosely connect the 2 wires to the brushes. Wrap the battery with a rag it might explode if you don't remove it fast enough. Your going to yank this off as soon as it produces power QUICKLY.

Plug in a light or a small fan so you can see that power is being produced. Let it run a few minutes before shutting it down.

To do anything else I need to know your generator model number to do winding and voltage regulator checks.

Thanks for choosing FixYa,
Kelly

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1 Answer

Motor runs but have no power coming out of outlets of mygenerator


1 - Check the circuit breakers on the front of the panel where the outlets are located.
2 - Make sure the black molex plug on the back of the panel where the outlets are located is plugged in securely.
3 - Carefully take the plastic endbell off the generator ( you'll need a 7/16 inch wrench and socket) and look for broken or missing brushes, broken wires, etc.
4 - If you're not up for #3 take it to a good repair shop. :-)

Nov 13, 2008 | Coleman Powermate Premium Plus 6250W...

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