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I have a powermate model pm0645250. It runs great but when you first start it it only has about 50% voltage out put. If you turn it off and start it back up it has no voltage out put.

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Posted on Jan 02, 2017

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CarlGehrke
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SOURCE: generator wont put out enough voltage, only get 107 volts, is this a voltage reg. problem

This problem is either that the engine RPM is too low (most likely), or that there is something amiss in the voltage regulation. Get yourself a DMM that measures Hz, plug it into the output and see if you get 61.5 Hz, if not look for the adjustment on the governor spring. On some Powermates this is a screw that pressed on the governor arm, on others it's a little tab the governor spring attaches to that you bend. Do this at no load. FWIW 61.5 Hz is also 3750 RPM of the engine.

Posted on Dec 01, 2008

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SOURCE: Powermate model 544000 generator undervoltage

There are basically 2 possibilities that can cause this.

1) Enigne RPMs are too low. but, since you already played with the throttle, this probably isn't the case. RPMs should be about 3600 though.

2) The voltage regulator / capacitor has high ESR (resistance) or is bad altogether. Replace.

Posted on Jan 04, 2010

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1 Answer

Looking for wiring diagram for my coleman powermate PM54-4000


http://www.powermate.com/productmanuals.php?cat_id=3

May 07, 2016 | Coleman Electrical Supplies

2 Answers

Powermate 5000 dies after a couple of hours


You will need to contact Powermate directly (see below), and give themthe CORRECT model # info that you have there on that Genset.

Unfortunately what you posted above doesn't help out at all as there isNO model # for reference. Certain models are no longer available asthey have been discontinued and only by contacting Powermate directlywill you get the proper Operators Manual.

There should be no charge for this and most likely it will be a PDF download sent by their service dept.

The model # should be found either on the engine decal plate or else on the generator head assy or it's power panel.

Please post me a reply as to finding this solution being the bestresolve to your missing Operators Manual problem by following thecompany references & links below. Also please rate mytroubleshooting fix as well.

Keep me posted and I'll follow up as well.

Best regards,

Kevin

Sep 22, 2008 | Coleman Powermate Powermate 5000W...

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I have an old coleman powermate 6560 . Its missing the spark plug (which got thrown away) and i can't find ANYTHING on what spark plug to use in this generator.model number is PM0645250


The J8 spark plug is typically used on almost all small motors. You can google J8 cross reference for a list of alternatives that will work.

May 02, 2015 | Coleman Electrical Supplies

1 Answer

I am looking for an owners manual for a Coleman Powermate generator model PMO645250


Powermate doesn't have an owners manual listed for the PM0645250 on their website.

Since wintertime is a good candidate for power failures I would recommend using a good synthetic 5w-30 oil as it is a good year around oil. This would make starting much easier during the cold weather

Oct 20, 2014 | Coleman Electrical Supplies

1 Answer

High voltage?


Make sure the engine RPMS are correct, and change the capacitor in the end of the alternator cover

Jul 24, 2013 | Coleman Powermate Powermate 5000W...

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Not sure what you mean "high voltage rpm power generator out", however many people have asked how to adjust the engine for proper voltage output. On generators with~out a voltage regulator, I adjust the engine RPM by using a digital voltage meter that has a Hz setting. Adjust the governor untill the meter displays 60 Hz. With the geneator producing 60 cycles, I know that the engine is turning 3600 rpm (the engine produces max hp when it is turning 3600 rpm). At this point, read the voltage output to verify that the range is between 115 ~ 120. On generators with a voltage regulator, verify/adjust that generator is producing 60 cycles then adjust voltage by turning screw at the regulator (some regulators are sealed with potting compound and can not be adjusted). If your power demands are not that great and you appliance can operate at 50 cycles, adjust governor as needed. Lowering to 50 cycles will also reduce output voltage. Good luck

Oct 10, 2011 | Coleman Powermate Powermate 5000W...

1 Answer

Have older powermate 5000 contractor gen. runs great but only puts out 5.5 to6.1 volts. has new brushes


Hello. Plug something into your generator's receptacle, say a trouble light. Then check the output. With no load at all [nothing plugged in, you will get a voltage reading that is low. regards, Joe

Jan 28, 2010 | Coleman Powermate Powermate 5000W...

1 Answer

Powermate model 544000 generator undervoltage


There are basically 2 possibilities that can cause this.

1) Enigne RPMs are too low. but, since you already played with the throttle, this probably isn't the case. RPMs should be about 3600 though.

2) The voltage regulator / capacitor has high ESR (resistance) or is bad altogether. Replace.

Jan 01, 2010 | Coleman Powermate Powermate 5000W...

1 Answer

Idles to high to much power


It idle to high because to much fuel input in the carburator. Try to adjust the speed to required frequency 50 or 60 HZ ( it depend upon the country you are living ). You cannot start now because the generator have overspeed protection or over voltage protection that may trip & need to reset before you can run agin the generator.

Mar 19, 2009 | Coleman Powermate Powermate 5000W...

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