JD 60 Generator Problems

[GregA]

John T, I got back to my 60 last night and these are the steps I followed. Polorized the VR (not charging), ran a jumper cable from the battery to the generators case and placed a jumper wire from the VR ground strap to the jumper cable (not charging), removed jumper cable followed instructions in Para. 5a ampmeter needle jumped all the way to the right (charging). Is it time to try a new VR. Is JD the best place to buy one, we have a local NAPA that may have one, would you happen to know a NAPA part #. I am assuming that a new VR should be polorized before starting the tractor.

 

[John T]

If (after Genny was correctly polarized and all is wired correct??) the VR has a good ground yet she ONLY charges when you by passed the VR by dead grounding the Gennys FLD post that says the VR is the problem.

Is it a 3 terminal (BAT GEN FLD) VR or a 4 terminal (BAT LOAD FLD GEN). The 4 terminal VR's often have the GEN/ARM terminal hidden underneath.

Is it at the original POS Ground?? If you turn on lights or ign when shes not running, does the ammeter swing over to - discharge???

Jim in New York at Agri Services has some quality VR's www.wiringharnesses.com, Ive "usually" found good parts at NAPA and Deere are "probably" good but may be awful pricey. Be sure the VR is compatible for POS Ground.

NO a new VR doesn't need Polarized, its the Genny that gets polarized.

John T

 

[GregA]

It as a 4 terminal VR but I don't think it the original VR as the Load terminal is not used (there is a wire from the genterator side of the ampmeter to the switch).
Yes the the ampmeter swings over to discharge when not running and you turn on the lights.
For future reference does the generator ever require to be polorized again, say if the tractor sat without a battery in for a long time.
JD wants $89.00 for a new VR, haven't checked with NAPA yet.

 

[John T]

If a genny sets a longggggggggg time unused it can eventually loose some polarity strength (residual North/South magnetism in soft iron field poles) so no harm in polarizing it again.

Try Jim at Agri Services (link below) about a VR, tell him Old John T says howdy.

Like I posted before perhaps the genny shop had the genny polarized for the more typical neg ground and such could have damaged the VR if you ran the genny at the wrong polarity.

Im hesitant to advise a new expensive VR not being there to see and test for myself, but if it was grounded and she didnt charge UNLESS you grounded out the gennys FLD post, that sure indicates a VR problem, but they can be way out of adjustment also??? (but I don't get into adjustment over the net, JimN over on the IHC page does some) so you're on your own lol

Good Luck

John T
Agri Services

 

[41B-boy]

Good Post, Gentlemen.
Thanks!
Bob

 

[Fred from MO]

Not to hijack your post but with pos ground running with lights on should your gauge be reading -10 dish charge?

 

[Fred from MO]

Not to hijack your post but with pos ground running with lights on should your gauge be reading -10 dish charge?