D19 generator discharge ?
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=160977
Printed Date: 10 Sep 2025 at 11:35am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: D19 generator discharge ?
Posted By: Briguyallis
Subject: D19 generator discharge ?
Date Posted: 13 May 2019 at 10:56pm
Alright guys need some help here d19 gas I’ve been playing with the generator and had her charging beautifully sat for a day after I had it going and started it up to go pull my d17 out of the mud since I played with the generator and regulator i was keeping an eye on the charging amps and she was charging good with the throttle up and going down to zero when reved Down normal right..... right anyways parked her and about an hour of bull  ting with a buddy went to show him the lights that I also recently got going...I got nothing but I slight dim I thinking hmmm old battery threw the charger on her came back an hour later charger said check battery disconnected the positive ground and hooked the charger back up and voltage went up to normal so just kinda playin around and I touched the ground cable to her see if she was drawing anything she was so I was doing that and looking. Around the tractor and noticed it’s trying to spin my generator like an electric motor noted key is off and showing a -15 amprs draw and she was just charging good before being shut down I’m wondering if bad regulator or bad key switch Anybody have any idea what would cause this sorry kinda drawn out but just trying to get the back story about it out there
|
Replies:
Posted By: Alvin M
Date Posted: 14 May 2019 at 6:04am
| Bad Regulator |
Posted By: DougS
Date Posted: 14 May 2019 at 6:24am
|
Yup. The cutout part of the regulator isn't working. It's not opening, allowing the battery to discharge through the generator when the tractor is shut off.. |
Posted By: joelsplace
Date Posted: 14 May 2019 at 6:04pm
|
Alvin and Doug are correct. The way the generator works is it has residual magnetism that allow it to make enough juice to pull in the cutout relay to connect it to the battery and start charging. If the relay doesn't open it will try to run the generator like an electric motor and run the battery down. You can pull the cover off of most regulators and check to see if the cutout relay points are stuck or just replace the regulator like others suggested. |
Posted By: Briguyallis
Date Posted: 17 May 2019 at 8:26am
| The points were stuck and I ended up just ordering a new one threw that on last night and solved my problem thanks for the help |