Ameter discharge

Farmall Cub Forum -- Questions and answers to all of your Cub related issues.

Moderator: Team Cub

Forum rules
Notice: For sale and wanted posts are not allowed in this forum. Please use our free classifieds or one of our site sponsors for your tractor and parts needs.
Biscuit
5+ Years
5+ Years
Posts: 48
Joined: Sun Jul 26, 2009 2:26 pm
Zip Code: 29040
Tractors Owned: '56 Cub
Location: Dalzell, SC

Ameter discharge

Postby Biscuit » Sat Jul 13, 2013 6:52 pm

I read several posts concerning charging issues and was a little overwhelmed with all of the threads so my apologies for the redundant question. I rebuilt my '56 last summer and installed a new wiring harness and replaced any old/bad wires I found during the teardown. As Cubs seems to do, it fired right off after the first pull and runs great after I put it all back together. I noticed the ameter would peg to the charge side after start-up then settle down just north of "0" but never showed discharge. I assumed between new paint, new wires and everything else that was torn apart and put back together there were a few kinks to work out. Today I noticed the ameter stayed to the discharge side and with the lights on the meter bottoms out. When I first got this tractor I found a great troubleshooting tree to track down a bad regulator. I'm trying to find that same tree again; I think it covered more than just the Cubs but it had all wires and terminals labeled and it was very easy to follow. Does anyone know where to find it? I'm sure I got it from this forum but it might have been a thread on here. Thanks

User avatar
Tractorboy3
5+ Years
5+ Years
Cub Star
Cub Star
Posts: 166
Joined: Thu Jan 29, 2009 9:54 pm
Zip Code: 20707
Tractors Owned: ........
1950 H
1952 Super C
1954 Cub
1957 Cub
1958 Cub
1995 Cub Cadet 1440
Circle of Safety: Y
Location: Laurel, Md

Re: Ameter discharge

Postby Tractorboy3 » Sat Jul 13, 2013 7:20 pm

I think this is what you are looking for

http://www.cleancomputes.com/Cub/Mainte ... 0Chart.jpg
'50 H, '52 Super C, '54 Cub, '57 Cub, '58 Cub, '95 Cub Cadet 1440

User avatar
Rudi
Cub Pro
Cub Pro
501 Club
501 Club
Posts: 28707
Joined: Sun Feb 02, 2003 8:37 pm
Zip Code: E1A7J3
eBay ID: ve9rhs
Skype Name: R.H. "Rudi" Saueracker, SSM
Tractors Owned: 1947 Cub "Granny"
1948 Cub "Ellie-Mae"
1968 Cub Lo-Boy
Dad's Putt-Putt
IH 129 CC
McCormick 100 Manure Spreader
McCormick 100-H Manure Spreader
Post Hole Digger
M-H #1 Potato Digger
Circle of Safety: Y
Twitter ID: Rudi Saueracker, SSM
Location: NB Dieppe, Canada

Re: Ameter discharge

Postby Rudi » Sat Jul 13, 2013 7:31 pm

Make sure all the connections are clean and bright metal - grounds, terminals, etc. Paint is not a good conductor. Did you polarize the Generator?

Image

Does this help at all?
Confusion breeds Discussion which breeds Knowledge which breeds Confidence which breeds Friendship


Biscuit
5+ Years
5+ Years
Posts: 48
Joined: Sun Jul 26, 2009 2:26 pm
Zip Code: 29040
Tractors Owned: '56 Cub
Location: Dalzell, SC

Re: Ameter discharge

Postby Biscuit » Sun Jul 14, 2013 7:44 am

Tractorboy3, Thanks for the chart. I found this one as well but it wasn't the same one I used a few years ago. The one I was looking for actually had a schematic with the chart and color codes for the wiring. I think it had all of the volt readings as well. And Rudi, I did polarize the generator (more than once). I just found it odd that it's been charging for about a year and then it has decided to start discharging. I forgot to mention, and don't know if this makes a difference, but I added a Battery Tender lead to the batt posts and attach the charger whenever I park the tractor. I don't think this is an issue because this charger actually displays the percent of charge and it is always 95% or better.

User avatar
Rudi
Cub Pro
Cub Pro
501 Club
501 Club
Posts: 28707
Joined: Sun Feb 02, 2003 8:37 pm
Zip Code: E1A7J3
eBay ID: ve9rhs
Skype Name: R.H. "Rudi" Saueracker, SSM
Tractors Owned: 1947 Cub "Granny"
1948 Cub "Ellie-Mae"
1968 Cub Lo-Boy
Dad's Putt-Putt
IH 129 CC
McCormick 100 Manure Spreader
McCormick 100-H Manure Spreader
Post Hole Digger
M-H #1 Potato Digger
Circle of Safety: Y
Twitter ID: Rudi Saueracker, SSM
Location: NB Dieppe, Canada

Re: Ameter discharge

Postby Rudi » Sun Jul 14, 2013 9:36 am

Those Battery Minders/Tenders are worth their weight in gold.

Biscuit wrote:I forgot to mention, and don't know if this makes a difference, but I added a Battery Tender lead to the batt posts


The lead isn't grounding out by any chance is it :?:

Biscuit wrote:The one I was looking for actually had a schematic with the chart and color codes for the wiring. I think it had all of the volt readings as well.


I am trying to figure out what schematic that is. Will search and see what I can find.
Confusion breeds Discussion which breeds Knowledge which breeds Confidence which breeds Friendship


TJG
5+ Years
5+ Years
501 Club
501 Club
Posts: 1224
Joined: Wed Jul 02, 2008 6:11 am
Location: MN, Mankato

Re: Ameter discharge

Postby TJG » Sun Jul 14, 2013 3:56 pm

Mine recently also showed discharge all of the time. The chart was helpful and I determined a bad voltage regulator. I put in a new voltage regulator, repolarized it, and all is fine.

Todd

User avatar
birddog
10+ Years
10+ Years
Cub Star!!
Cub Star!!
Posts: 432
Joined: Fri May 05, 2006 12:00 am
Zip Code: 54515
Circle of Safety: Y
Location: WI, Catawba

Re: Ameter discharge

Postby birddog » Sun Jul 14, 2013 4:09 pm

Biscuit; I don't know if the one in this thread is the one you meant, but it may help.

http://www.farmallcub.com/phpBB2/viewtopic.php?f=1&t=72455
Mark "birddog" Birdeau
Circle of Safety

Biscuit
5+ Years
5+ Years
Posts: 48
Joined: Sun Jul 26, 2009 2:26 pm
Zip Code: 29040
Tractors Owned: '56 Cub
Location: Dalzell, SC

Re: Ameter discharge

Postby Biscuit » Sun Jul 14, 2013 4:24 pm

Rudi, No it's not grounding out since I have a cover for it when not in use and I pulled the batt cover off just to make sure it wasn't grounding out. And you're right, those tenders are awesome; I've had the same batt in my 4-wheeler since '06 and it keeps cranking. Birddog, that isn't the one I used but it's the one I'm going to use. It has the same steps as the link Tractorboy posted but it also has the readings. I think I'll pull the hood and use Rudi's schematic and do a once-over on all of my connectors. I have a feeling I'll be changing a VR. Thanks to all for the help.

muleboss
10+ Years
10+ Years
501 Club
501 Club
Posts: 860
Joined: Sat Dec 10, 2005 4:31 pm
Zip Code: 66839
Circle of Safety: Y
Location: KS. Burlington

Re: Ameter discharge

Postby muleboss » Sun Jul 14, 2013 9:04 pm

If you redid it to 6 volts and them started putting the battery tender on it , was it a 6 or 12 volt tender. If 12 volt tender it is very possible your problem is the VR.

Biscuit
5+ Years
5+ Years
Posts: 48
Joined: Sun Jul 26, 2009 2:26 pm
Zip Code: 29040
Tractors Owned: '56 Cub
Location: Dalzell, SC

Re: Ameter discharge

Postby Biscuit » Mon Jul 15, 2013 7:58 pm

The tender I'm using is actually a Sears analyzer/combo 6-12 volt but I'm tracking with you. I have an actual Battery Tender that is 12V I use on my boat batt and small engine batts.

Biscuit
5+ Years
5+ Years
Posts: 48
Joined: Sun Jul 26, 2009 2:26 pm
Zip Code: 29040
Tractors Owned: '56 Cub
Location: Dalzell, SC

Re: Ameter discharge

Postby Biscuit » Thu Jul 18, 2013 7:12 pm

So I finally got around to putting the troubleshooting tree to use. I made it to the step where you jump FLD from Gen to Batt GND. I couldn't get to the generator itself with the hood on so I jumped from the FLD on the VR to Batt GND. The guage didn't just move to charge, it jumps all the way to the right. I don't know if this indicates a bad VR as the tree states or if this is not a true reading since it's jumped from the VR terminal instead of directly at the generator. Anyone one?

User avatar
Arthur Luke
5+ Years
5+ Years
501 Club
501 Club
Posts: 799
Joined: Fri May 09, 2008 2:47 pm
Zip Code: 74022
Tractors Owned: 8 F Cubs, 7 Lo-Boys, 2 # LoBoys, 1 CC, 1 H, 1 other
Circle of Safety: Y
Location: OK, Copan

Re: Ameter discharge

Postby Arthur Luke » Thu Jul 18, 2013 7:17 pm

Same difference. Make sure your vr has a good clean ground.
Have a good day, Art Image

Biscuit
5+ Years
5+ Years
Posts: 48
Joined: Sun Jul 26, 2009 2:26 pm
Zip Code: 29040
Tractors Owned: '56 Cub
Location: Dalzell, SC

Re: Ameter discharge

Postby Biscuit » Thu Jul 18, 2013 8:12 pm

Thanks Art. I pulled the VR off and ohmed out underneath from the mount hole back through the resistor and it checked good. I then ohmed from the mount hole to the inside where the solder is and it checked good. However, there is a small wire that goes from the solder to a coil (?) in the VR on "L" terminal. I can't get it to ohm at all but i don't know if it is supposed to be a ground or not. I'm assuming it is since it's soldered there.

User avatar
birddog
10+ Years
10+ Years
Cub Star!!
Cub Star!!
Posts: 432
Joined: Fri May 05, 2006 12:00 am
Zip Code: 54515
Circle of Safety: Y
Location: WI, Catawba

Re: Ameter discharge

Postby birddog » Fri Jul 19, 2013 6:03 pm

Biscuit: I also have a thread on voltage regulators that may help, find it here.

http://www.farmallcub.com/phpBB2/viewtopic.php?f=1&t=72652
Mark "birddog" Birdeau
Circle of Safety


Return to “Farmall Cub”

Who is online

Users browsing this forum: Paul Van Benschoten and 4 guests