Posted by K Effective on July 01, 2022 at 20:41:36 from (99.184.108.123):
I was trouble shooting the non-advancing hour meter on my 5500N yesterday. Following the Technical manual instructions, I got to the step to verify alternator output- had battery voltage at the big lead and also at the IG terminal with KOEO. When testing at low idle, I had no voltage at the L terminal, which feeds the hour meter and charge indicator light. I do not have a charge indicator light lit in either condition. The tech manual says voltage regulator failed, replace alternator.
This seems reasonable, I guess. The battery has been staying charged and the other electrical items seem to function correctly. I did not take a voltage reading at the battery while it was running.
I can get a reman on prime for under a hundred, or on flea bay for $125, or from the dealer at $461. There is also a package on theBay for a replacement voltage regulator and brush holder/brushes combo for $35. Assuming no obvious issues in the alternator (bad bearings etc) I'm thinking it can't be too hard to swap out VR and brushes, can it?
I reposted this here after no response on the JD forum, hoping to catch a couple of the experts who might not dig into each manufacturer board.
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