Your last generator Maintenance Run

   / Your last generator Maintenance Run #5,951  

grsthegreat

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Jan 26, 2011
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north idaho
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Kioti DK45SE hst cab
most small generators use residual magnetic fields to stimulate the field around rotor and stator to produce power. Most larger units have a field flash circuit that flashes the rotor/ stator to produce power. Im not sure where your unit is asking to flash rotor. I have seen some people say all you need to do is plug in a drill to generator and manually rotate arbor to create the field. But i dont work around small units, so im not sure.
 
   / Your last generator Maintenance Run #5,952  

Sawyer Rob

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Dec 5, 2014
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Upper Mid West
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several brands
Is there a general rule of thumb to how frequently one should run a pto powered generator to maintain the residual magnetism? I guess for any generator?
I switched over to a pto generator several years ago, and since there is no engine to exercise, I haven't run it in maybe two years.
IF I remember right, mine said run it at 50% output for 30 mins every 6 months.

SR
 
   / Your last generator Maintenance Run #5,953  

90cummins

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Mar 17, 2011
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Florida Ma.
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Ford 1720 SSS 4x4 Turbo Charged
This was actually back in October, I pulled out the PTO generator and ran it on the load bank for a while to keep up the residual magnetism. It’s the backup to a Generac 22KW propane standby, and doesn’t get much use.
View attachment 771356
I have the same unit. Bought it prior to Y2K from Generac.
Funny story as to why I’m bought it and all my other generators.
When Y2K was being hyped up my wife said if I can’t curl my hair I’m not going to work!
My reply was ohhh you’re going to work. That’s how it all started.
True story.
90cummins
 
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TheMan419

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Dec 6, 2015
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Indiana
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New Holland Boomer 24
I have the same unit. Bought it prior to Y2K from Generac.
Funny story as to why I’m bought it and all my other generators.
When Y2K was being hyped up my wife said if I can’t curl my hair I’m not going to work!
My reply was ohhh you’re going to work. That’s how it all started.
True story.
90cummins
Similarly that is why we have a generator. Wife did not want to be without certain creature comforts. That was when we lived in a subdivision. Now we need it to run the well so we have water for the horses. Of course we also get creature comforts from the generator.
 
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90cummins

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Florida Ma.
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Ford 1720 SSS 4x4 Turbo Charged
In response to how often should a PTO gen be operated to maintain residual magnetism I don’t know.
Mine has set several years between uses with no problems.
I have never had an issue with portables either.
My nephew’s standby gen had to be flashed a couple years ago after running flawlessly for 2 days after a power outage.
During the next scheduled exercise it failed to generate and had to be flashed.
No logical explanation.
90cummins
 
   / Your last generator Maintenance Run #5,957  

RjCorazza

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Apr 6, 2000
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Maryland
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Kubota L4060 Cab, ZD1211, ZD326
I should run my PTO generator on a schedule like I did for the gas unit.
I googled various methods of flashing, and some appeared to be flat out dangerous. Seems to me the safest method I found was to plug in a drill to the running generator, pull the trigger, spin the chuck counter clockwise. Applying 12 volts to a 120v generator outlet seemed to work on YouTube, but it involves suicide type connections and a momentary connection. I'm not necessarily against that method, as I've done more dangerous things in my life!
Hopefully I'll never have to flash my Genset.
 
   / Your last generator Maintenance Run #5,958  

Popgadget

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Mar 27, 2020
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Bedminster,PA
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Kubota L6060
My engine driven Hobart welder needs to be flashed if it sits for a few months. Got to be enough of a pain that I added wiring and a push button on the panel to flash it. As long as I can get to the field windings, usually the brushes on a portable, I use a 12v battery. It’s the brushless generators that make things interesting.
 
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3930dave

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Dec 8, 2007
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Canada
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Ford 3930
Great 411 guys.... thanks for posting your recollections of flashing.......

Rgds, D.
 
 
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