gererator questions

All other non-specific model Farmall / IH / CASE tractors. (Catch-All)

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.

gererator questions

Postby cjpenny89 » Tue Jun 02, 2009 9:09 am

Ok
This is a little more then just a Farmall A generator. I posted about this over a year ago and I can locate the post in the forumn.
I am using an old Chrysler Corparation 6 volt generator/hydraulic pump all in one unit.
It was used for hydraulic convertable tops. I took it off a doodle bug tractor.
My question is the generator does not have markings on it for the Feild or the Arm.
How do you know which one is which? can you look down at it with the pulley up and the arm be the one on the left and the feild on the right? The one post is bigger then the other does that tell me anything?
any help with finding out which one is which would be nice. I want to wire this in using a voltage regulator by-passing the high low on the 4 way switch but yet still use that for the lights would anyone know how to tell me to wire this up?
Thanks
Chad
"don't find fault, find a remedy"
1948 Cub, 1945 A, 1955 100
User avatar
cjpenny89
501 Club
501 Club
 
Posts: 1069
Joined: Mon Feb 03, 2003 1:15 pm
Location: St. Charles, MI 48655

Re: gererator questions

Postby Bigdog » Tue Jun 02, 2009 9:33 am

The large post should be the armature.
Bigdog
If you can't fix it with a hammer, you've got an electrical problem.

My wife says I don't listen to her. - - - - - - - - Or something like that!

http://www.cubtug.com
User avatar
Bigdog
Team Cub
Team Cub
 
Posts: 23814
Joined: Sun Feb 02, 2003 12:50 pm
Location: OH, Stoutsville
Zip Code: 43154
Circle of Safety Award
Circle of Safety: Y

Re: gererator questions

Postby cjpenny89 » Tue Jun 02, 2009 9:40 am

Thanks Big Dog
If that is true if I take my volt meter to the Arm to Ground will that show me the charging volts coming out of the genny?
"don't find fault, find a remedy"
1948 Cub, 1945 A, 1955 100
User avatar
cjpenny89
501 Club
501 Club
 
Posts: 1069
Joined: Mon Feb 03, 2003 1:15 pm
Location: St. Charles, MI 48655

Re: gererator questions

Postby Bigdog » Tue Jun 02, 2009 11:43 am

Yes
Bigdog
If you can't fix it with a hammer, you've got an electrical problem.

My wife says I don't listen to her. - - - - - - - - Or something like that!

http://www.cubtug.com
User avatar
Bigdog
Team Cub
Team Cub
 
Posts: 23814
Joined: Sun Feb 02, 2003 12:50 pm
Location: OH, Stoutsville
Zip Code: 43154
Circle of Safety Award
Circle of Safety: Y

Re: gererator questions

Postby cjpenny89 » Tue Jun 02, 2009 8:30 pm

well I took a voltage reading at the battery before starting it was 6.31volts. I then took the positive wire of my meter to the arm on the gen and the negative to ground and at half throtal I got .31 volts and at full throtal I got .45 volts. I think the generator is shot.
I almost have to find a way to rebuild it since the Hyd. pump bolts on the end of it. any suggestions?
Chad
"don't find fault, find a remedy"
1948 Cub, 1945 A, 1955 100
User avatar
cjpenny89
501 Club
501 Club
 
Posts: 1069
Joined: Mon Feb 03, 2003 1:15 pm
Location: St. Charles, MI 48655

Re: gererator questions

Postby Bigdog » Tue Jun 02, 2009 8:53 pm

Did you polarize the generator first?
Bigdog
If you can't fix it with a hammer, you've got an electrical problem.

My wife says I don't listen to her. - - - - - - - - Or something like that!

http://www.cubtug.com
User avatar
Bigdog
Team Cub
Team Cub
 
Posts: 23814
Joined: Sun Feb 02, 2003 12:50 pm
Location: OH, Stoutsville
Zip Code: 43154
Circle of Safety Award
Circle of Safety: Y

Re: gererator questions

Postby Eugene » Tue Jun 02, 2009 9:21 pm

I think the generator is shot. I almost have to find a way to rebuild it since the Hyd. pump bolts on the end of it. any suggestions?
Couple of choices. Take it to an automotive electrical repair shop. Take it apart and see what you need to repair, replace. Bearings and brushes should be readily available. Big problem will be the commutator - if it needs to be turned and undercut.
I have an excuse. CRS.
Eugene
Team Cub Mentor
Team Cub Mentor
 
Posts: 12123
Joined: Fri Jul 02, 2004 9:52 pm
Location: Mo. Linn
Zip Code: 65051
Circle of Safety Award
Circle of Safety: Y

Re: gererator questions

Postby cjpenny89 » Wed Jun 03, 2009 5:16 am

Big dog
I am just trying to take readings with the volt meter I am not sure the wiring is hooked up right so I didn't bother polarizing it using the voltage reg jumping the bat to the gen.
Can you just polarize the generator by itself?

Eugene.
The bearings all seem good it spins very easy no noise so I am guessing the brushes? Should the brush pull away when you pull back on the spring loaded retainer?
"don't find fault, find a remedy"
1948 Cub, 1945 A, 1955 100
User avatar
cjpenny89
501 Club
501 Club
 
Posts: 1069
Joined: Mon Feb 03, 2003 1:15 pm
Location: St. Charles, MI 48655

Re: gererator questions

Postby Bigdog » Wed Jun 03, 2009 6:54 am

Chad - polarize by applying battery voltage from the generator case (ground) and the A (armature) terminal on the generator.
On the brushes - yes, if you pull the holder clip back the brush should slide in the brush holder. Pull the brush out and see how much brush length you have left. The contact surface of the brush should give you some idea of what the commutator looks like. If it is smooth the commutator is probably in good shape. If the brush is grooved, so is the commutator.
Bigdog
If you can't fix it with a hammer, you've got an electrical problem.

My wife says I don't listen to her. - - - - - - - - Or something like that!

http://www.cubtug.com
User avatar
Bigdog
Team Cub
Team Cub
 
Posts: 23814
Joined: Sun Feb 02, 2003 12:50 pm
Location: OH, Stoutsville
Zip Code: 43154
Circle of Safety Award
Circle of Safety: Y

Re: gererator questions

Postby Jim Becker » Wed Jun 03, 2009 8:26 am

cjpenny89 wrote:I then took the positive wire of my meter to the arm on the gen and the negative to ground and at half throtal I got .31 volts and at full throtal I got .45 volts. I think the generator is shot.

Ground the generator F terminal when you do this test.
User avatar
Jim Becker
Team Cub
Team Cub
 
Posts: 11847
Joined: Sun Feb 02, 2003 3:14 pm
Location: TX/MN
Zip Code: 75048
Circle of Safety Award
Circle of Safety: Y

Re: gererator questions

Postby John *.?-!.* cub owner » Wed Jun 03, 2009 8:38 am

Bigdog wrote:Chad - polarize by applying battery voltage from the generator case (ground) and the A (armature) terminal on the generator.
Darrell, are you sure you typed that correctly?
"The Constitution is not an instrument for the government
to restrain the people, it is an instrument for the people to restrain the
government lest it come to dominate our lives and interests." Patrick Henry
User avatar
John *.?-!.* cub owner
Team Cub Guide
Team Cub Guide
 
Posts: 19098
Joined: Sun Feb 02, 2003 2:09 pm
Location: Mo, Potosi
Zip Code: 63664
Tractors Owned: 47, 48, 49 cub plus Wagner loader & other attachments. 41 Farmall H.

Re: gererator questions

Postby Bigdog » Wed Jun 03, 2009 8:53 am

Well - now that I re-read it - no............ need another cup of coffee...
Bigdog
If you can't fix it with a hammer, you've got an electrical problem.

My wife says I don't listen to her. - - - - - - - - Or something like that!

http://www.cubtug.com
User avatar
Bigdog
Team Cub
Team Cub
 
Posts: 23814
Joined: Sun Feb 02, 2003 12:50 pm
Location: OH, Stoutsville
Zip Code: 43154
Circle of Safety Award
Circle of Safety: Y

Re: gererator questions

Postby cjpenny89 » Wed Jun 03, 2009 9:17 am

Jim
I took the same readings with the F grounded and I do not think it got better possibly worse I will re check it tonight.
Chad
"don't find fault, find a remedy"
1948 Cub, 1945 A, 1955 100
User avatar
cjpenny89
501 Club
501 Club
 
Posts: 1069
Joined: Mon Feb 03, 2003 1:15 pm
Location: St. Charles, MI 48655

Re: gererator questions

Postby cjpenny89 » Thu Jun 04, 2009 9:01 pm

Jim
I don't know how this can work but I did the test with the feild on the gen grounded and checked the arm with the volt meter and it read 32 volts. un-hooked ground from feild and tested and it reads about .4 volts on high throtal.
What does this mean?
"don't find fault, find a remedy"
1948 Cub, 1945 A, 1955 100
User avatar
cjpenny89
501 Club
501 Club
 
Posts: 1069
Joined: Mon Feb 03, 2003 1:15 pm
Location: St. Charles, MI 48655

Re: gererator questions

Postby Bigdog » Thu Jun 04, 2009 9:09 pm

Sounds like the generator is OK.
Bigdog
If you can't fix it with a hammer, you've got an electrical problem.

My wife says I don't listen to her. - - - - - - - - Or something like that!

http://www.cubtug.com
User avatar
Bigdog
Team Cub
Team Cub
 
Posts: 23814
Joined: Sun Feb 02, 2003 12:50 pm
Location: OH, Stoutsville
Zip Code: 43154
Circle of Safety Award
Circle of Safety: Y

Next

Return to Farmall / IH / CASE

Who is online

Users browsing this forum: No registered users and 1 guest