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Kohler Electric Plant 15R61 low output

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Old 01-10-2019, 12:58:57 AM
mrh0t mrh0t is offline
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Default Re: Kohler Electric Plant 15R61 low output

Thanks everyone for your input. Sorry it took so long to get back to this, but with the holidays, and caring for my disabled wife, I'm really busy.

I'm sure I could fashion a band out of brass or copper, but the original band is pretty strong "springy" steel, and I don't know if a softer metal would work for long?

I thought I might just swap out one or both resistors, if they're not too costly. I got some Kohler info on them, and my model specifies either 4 ohm or 2.5 ohm resistors, with my variation specifying the 2.5 ohm unit. With my cheap VOM, which "zeros" out at 1.3 ohms, I measured 4.0 ohms across each resistor, so (4.0 - 1.3= 2.7 ohms), close enough to 2.5 ohms. The lower right resistor, with the band intact, measures (1.7 - 1.3 = 0.4 ohms) effective resistance, and the one with the broken band measures (2.8 - 1.3 = 1.5 ohm) resistance to the point where the band was situated.

I even got an original Kohler part number for the resistors, which is probably pretty useless at this point, but for reference, it's #265241.

I'll look at the rectifier issue once I get this squared away.

Thanks all,
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Old 01-10-2019, 01:53:11 PM
Zephyr7 Zephyr7 is offline
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Default Re: Kohler Electric Plant 15R61 low output

I think those resistor bands were usually made from something like tin plated brass. I doubt very much they were ever made from steel, and Iím sure not stainless steel. Myself, Iíd probably look for some tin plated brass or copper, and if I couldnít find that, Iíd just use brass sheet. Itís not very critical.

I wouldnít trust your meter for those very low ohm readings. Even the oxide on the surface of whatever you poke the probe at to make a measurement can result in big errors. You might want to try the poor-mans low-ohm measuring technique: use a light bulb and put the resistor in series with it. Measure the current drawn. Measure the voltage across the resistor. Resistance can be calculated as V/I=R, so divide the voltage you measured across the resistor by the current you measured (in amps) to get the resistance of the resistor. This will be more accurate in many cases than trying to measure the resistance directly with a normal ohmmeter.

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Old 01-10-2019, 03:57:25 PM
BergmanJ BergmanJ is offline
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Default Re: Kohler Electric Plant 15R61 low output

Lots of those "adjustable" bands were made from tin-plated steel as used in many different electrical applications (not just generators). Retired now; but, have seen quite a few rusted-through during my "working" life.

Regards, JLB
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