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How To Check Stator.


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#1 propane1 ONLINE  

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Posted June 02, 2014 - 04:18 PM

Kohler 14 hp stator.  Two questions:  How to check stator to see if it's good, what type of readings ?     And how to tell if it's a 10 amp or 15 amp stator ?   Thanks, Noel



#2 drbish ONLINE  

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Posted June 02, 2014 - 05:08 PM

this is out of a 1985 Kohler update book does not show anything about 10 amp stator.

Attached File  Kch2.PDF   3.24MB   43 downloads
This is the troubleshooting for the 15 amp.
.It is in the download
kcharge.JPG
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#3 drbish ONLINE  

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Posted June 02, 2014 - 06:11 PM

The complete book can be found here

http://gardentractor...kohler-engines/


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#4 olcowhand ONLINE  

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Posted June 02, 2014 - 07:10 PM

10 amp Kohler systems are VERY rare.  I've been into countless Kohler K engines & have never seen a 10 amp system.   the pdf file above has the instructions for testing.


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#5 JDBrian OFFLINE  

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Posted June 03, 2014 - 05:27 AM

It would be pretty hard to see the difference between 10 and 15 amp stators with a meter. Physically the 15 amp will be larger.  Sometimes the problem is on the magnet side of the equation rather than the stator itself. If the magnetic field is lower than normal you won't get the rated power out of it.


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#6 Lance Skene OFFLINE  

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Posted June 03, 2014 - 12:44 PM

Just a guess here but maybe the 10a is on the k161 and smaller engines, and the 15a on the k241 and larger?


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#7 propane1 ONLINE  

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Posted June 03, 2014 - 03:18 PM

My John Deere 140 is a 10 amp system, so the service manual says.  All engines in the Ford manual, 10, 12, 14, 16 and 19.5 HP are 15 amp.  I believe my MF 14 is a 15 amp, but I don't have a manual for it, but when you are using a used engine to rebuild how would you know what it came out of when new ??  Noel  



#8 JDBrian OFFLINE  

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Posted June 03, 2014 - 04:18 PM

As far as troubleshooting goes I don't think it would matter much.  If you look in the Kohler K service manual it shows the 15 amp and 25 amp stators but not the 10 amp. It looks like the 25 amp uses all the space on the stator for windings where the 15 amp leaves a couple of the winding spaces empty. The 10 amp would probably leave even more empty spots. The reason may be using heavier wire on the higher current stators which takes up more space to get the same number of turns, which is what would set the voltage level. It may also be that they use more windings of the same size putting them in parallel to decrease resistance and increase current output. I've never looked at how they are wound. 

  I wonder if you can see enough of the stator with the covers off the engine to identify how it's wound and compare that to the diagrams in the manual.


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