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Old 06-04-2016, 05:31 PM
Mich48041 Mich48041 is offline
Join Date: Apr 2008
Location: Riley TWP MI
Posts: 3,128

I recently installed the John Deere regulator exactly like the picture in post 52. The rudder tubes underneath made it difficult to install the new nutplate. If I had it to do over, I would move the regulator left 6 or 7 inches. The voltage is 0.4 higher now.
Joe Gores
RV-12 Flying
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Old 06-04-2016, 07:18 PM
BigJohn BigJohn is offline
Join Date: Nov 2008
Location: Gloversville, NY
Posts: 1,588

Originally Posted by Piper J3 View Post
Today I installed the JD AM101406 Voltage Regulator. Installation was very easy and straight forward thanks to all the help here on VAF. I added an aluminum sub-plate and used Silver Heat Sink Paste to improve cooling.

Question... My battery voltage maintains at 13.8 but amp reading varies a lot from -3 to about +7 in cruise flight. Most of the time amps is just bouncing ~ +/-2 around zero. Is this normal?
My ammeter reading has always bounced around like that, with both my Ducati regulators. Never bothered to figure out why, since voltage is good and battery stays charged.
John Peck, CFII, A&P, EAA Tech Counselor, Flight Advisor.
Master Pilot Award, UFO Member.
RV-12 N37JP 120176, built 2011, sold 2020.
One Week Wonder Build Team, OSH 2018.
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Old 01-05-2017, 11:23 AM
bruceflys bruceflys is offline
Join Date: Aug 2014
Location: Ocala, FL (Leeward Air Ranch)
Posts: 118
Angry Yet Another Ducati VR Fails

Ducati regulator installed under RV-12's panel failed at 120 hrs. Mode was full output for one or two minutes followed by a minute or two of no charge. After several episodes, no recovery.

See picture at post #13, which is the same experience on mine except only one G lead involved. Peeling back the top layer of potting compound revealed massive amounts of solder, but no visible thermal distress.

I cleaned the socket and plug and reinstalled. No output. $23 John Deere VR on order.

Interestingly my SeaRey with Rotax 912ULS has a Ducati regulator that has worked well for more than 350 hours.

Panther - Building 2019
RV-12 - Flying 2016; Sold 2018
RV-10 - Sold 2018; Flying 2018
SeaRey - Flying 2012; Sold 2017
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Old 01-03-2020, 08:53 AM
Piper J3's Avatar
Piper J3 Piper J3 is offline
Join Date: Nov 2014
Location: Hinckley, Ohio
Posts: 2,211

I had a request for information on how to install the John Deere Voltage Regulator in place of Ducati. So, I searched for my posts in VAF and photos are no longer saved on the hosting site (I wish this could be fixed ? we are losing valuable documentation). Next, I searched my photos and it looks like the ?cloud? sold them to the highest bidder and now they?re gone too.

Can someone pony-up the correct wiring for the John Deere AM101406 Voltage Regulator for the legacy RV-12?
Jim Stricker
EAA #499867
PPL/ASEL 1970 - Sport Pilot since 2007
80 hrs Flying Aeronca Chief 11AC N86203
1130 hrs Flying 46 Piper J-3 Cub N6841H
Bought Flying RV-12 #120058 Oct 2015 with 48TT - Hobbs now 633

LSRM-A Certificate 2016 for RV-12 N633CM
Special Thanks... EJ Trucks - USN Crew Chief A-4 Skyhawk
MJ Stricker (Father & CFI) - USAAF 1st Lt. Captain B-17H
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Old 01-03-2020, 10:09 AM
Mich48041 Mich48041 is offline
Join Date: Apr 2008
Location: Riley TWP MI
Posts: 3,128

The problem is that there are several variations of John Deere voltage regulators.
Purchase one that has the terminals marked like eBay item number:362224250586
And another eBay item number:352900565370 has the following
Wire color and function:
(2) Blue Wires: Stator AC in
Red Wire: Battery +
Black Wire: Battery -
Yellow: Ignition switch +
Green: Low charge indicator light
Search eBay for "101406 Regulator" which sells for a little as $18.
Joe Gores
RV-12 Flying
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