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Old 01-18-2009, 05:05 PM   #1
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Need help w/ portable generator


Just picked up today and was told it worked. Engine ran great but no juice....my fault not to test but either case it was a super low price.

It's a Coleman Powermate 5000 with the Subaru engine or whoever makes it. No juice at recepticles, pulled black plug from behind, only 2-4 volts at white and black....two whites, two blacks 1 ground.

Where do I need to look to make it work?

Brushes, relays, whatever, I can put $200 and still be way ahead.

Upsets me but hopefully I can make it right.

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Old 01-18-2009, 05:26 PM   #2
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Need help w/ portable generator


start by googling "generator flashing" the field could have lost its magnetism.\
Here is one of the simplest ways to do it if it works.

http://www.perr.com/tip16.html
It doesn't say in the article but I would use a cordless drill to spin the corded drill.

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Old 01-18-2009, 05:26 PM   #3
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Need help w/ portable generator


Have you checked voltage at the circuit breaker(s)?
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Old 01-18-2009, 05:40 PM   #4
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Need help w/ portable generator


This site may help you. It has exploded views of the generator. You can start and work your back.
http://www.powermate.com/productmanuals.php?cat_id=3

Forgot to mention Go Cardinals, Go Ravens!!!!!!

Last edited by wirenut1110; 01-18-2009 at 05:43 PM.
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Old 01-18-2009, 05:47 PM   #5
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Need help w/ portable generator


Quote:
Originally Posted by wirenut1110 View Post
Have you checked voltage at the circuit breaker(s)?
Are there breakers before the wires leave the generator, I will check the parts diagram.
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Old 01-18-2009, 05:49 PM   #6
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Need help w/ portable generator


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Originally Posted by i6pwr View Post
Are there breakers before the wires leave the generator, I will check the parts diagram.

Sometimes they just have resettable push in breakers.
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Old 01-18-2009, 05:57 PM   #7
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Need help w/ portable generator


The two push-in breakers on the front panel are pushed in as far as I can tell. I pulled the main harness from the rear of the panel that comes directly from the generator itself. Only 2-4 VAC, tried alll the wires even the ground.

Would love to call the guy back and tell him he didn't get the best of me.
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Old 01-18-2009, 06:24 PM   #8
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Need help w/ portable generator


Almost certainly the field has lost its residual magnetism. If the generator end has been taken off, this is certain. You'll need to 'flash' the field. The link that joed provided works a good part of the time. If not, there are other methods.

Rob
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Old 01-18-2009, 06:34 PM   #9
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Need help w/ portable generator


I'll get the kids off to bed and take some pics so we can see what we are dealing with. I read that link and is very informative...at least it makes me feel better that I can possibly salvage this thing.

Then we can take some readings and see what we have. I'm all about tearing things down to see how they work and how to fix them
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Old 01-18-2009, 08:21 PM   #10
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Here she is......

So where do we start




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Old 01-18-2009, 08:32 PM   #11
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Need help w/ portable generator


Forgot to mention it's not a good time to fire it up and flash the magnets, I figure I can check out the guts under the cover to possibly eliminate any other probs.

Then in the A.M. I will try to flash the magnets.
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Old 01-19-2009, 10:45 AM   #12
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Need help w/ portable generator


Check the brush that rubs on the outer ring. That ring should be nice and polished lke the inner one. Outer brush looks like it is not making full contact.
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Old 01-19-2009, 11:03 AM   #13
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Need help w/ portable generator


Thats why you got it so cheap, it's broke. Take it to a small engine shop that reps your brand.
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Old 01-19-2009, 01:07 PM   #14
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I found a good article on these things....

http://www.fixya.com/support/t132926...pm0555523_only


Spent about an hour with it last night and put it back together this morning, along with what joed said, the slip rings needed a little shine.

Took a 3M pad to the rings and it works like a champ, didn't even need to flash the mags.

Thanks for all the tips, I figured it was too good to be true but I will have the last laugh, he avoided all my calls last night to boot.

The 10 HP Subaru motor really runs quiet, not like a newer Honda but much quieter than I expected.

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