Wiring Question

Farmall H, HV & Super H, 1939-1954

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.

Wiring Question

Postby Stanton » Mon Nov 18, 2013 7:49 am

1945 Farmall H
Battery Ignition
12V battery when I bought it.

Took off the wiring the PO had done (looked to be a modified 12V conversion) and rewired per wiring below:

Image
(diagram courtesy of farmallbob)

The only thing I did differently was not put the wire from the F (field) post on the generator to the field resistor at the light switch or any downstream wiring to the lights.

I installed a 6V battery and hit the remote starter. It fired right up and stayed running as long as I held the starter switch down. :?

What do you think caused that?
User avatar
Stanton
501 Club
501 Club
 
Posts: 2167
Joined: Mon Jun 22, 2009 6:56 am
Location: Lone Jack, MO
Zip Code: 64070
Tractors Owned: 1947 Farmall Circle Cub, serial #2116
1948 Farmall Cub, serial #46066
1949 Farmall Cub, serial #65937
Cub-54 Blade
Cub-193 Moldboard Plow
Cub No. 23-A Tractor Disc Harrow
Grosshart Post Hole Digger
Prewitt Conversion Unit
McCormick-Deering No 100 Manure Spreader
Cub-22 mower
1945 Farmall H, serial #213,651
CCC 782, serial #715729
Circle of Safety Award
Circle of Safety: Y

Re: Wiring Question

Postby Eugene » Mon Nov 18, 2013 8:29 am

Not sure which type of starter switch.

Move the wire from starter switch to the amp meter to opposite side of the switch. That wire should be on the battery cable feeding the switch from the battery. The side of the starter switch that is hot all the time.
I have an excuse. CRS.
Eugene
Team Cub Mentor
Team Cub Mentor
 
Posts: 12125
Joined: Fri Jul 02, 2004 9:52 pm
Location: Mo. Linn
Zip Code: 65051
Circle of Safety Award
Circle of Safety: Y

Re: Wiring Question

Postby Stanton » Mon Nov 18, 2013 8:40 am

Yeah, I remember now. I remember thinking that the diagram shows the starter switch on the starter, but it says that some are remote (like mine). So, I ran the heavy battery cables to/from the remote switch, but left the smaller wire (shown on the diagram) still on the starter. Therefore, when the starter switch was in contact, that smaller wire was getting juice from the battery and feeding the coil. But when I took my hand off the switch, it lost power.

Makes sense in retrospect. Thanks Eugene. Sometimes I just need an opinion or different viewpoint to make it "click" in my head.

Since I'm wanting to convert this back to 6V, I'm pleased to know that it can start/run per the stock diagram.

Now, I just need to check out the generator to see if it is producing a charge. Thanks again!
User avatar
Stanton
501 Club
501 Club
 
Posts: 2167
Joined: Mon Jun 22, 2009 6:56 am
Location: Lone Jack, MO
Zip Code: 64070
Tractors Owned: 1947 Farmall Circle Cub, serial #2116
1948 Farmall Cub, serial #46066
1949 Farmall Cub, serial #65937
Cub-54 Blade
Cub-193 Moldboard Plow
Cub No. 23-A Tractor Disc Harrow
Grosshart Post Hole Digger
Prewitt Conversion Unit
McCormick-Deering No 100 Manure Spreader
Cub-22 mower
1945 Farmall H, serial #213,651
CCC 782, serial #715729
Circle of Safety Award
Circle of Safety: Y

Re: Wiring Question

Postby John *.?-!.* cub owner » Mon Nov 18, 2013 10:25 am

I had never thought much about it, since that diagram works for a cub, but as Eugene said, an H normally uses a separate starter switch. I never saw an H or M with the switch on the starter. Cub, A, B, Super a, C and Super C, yes, but not H or M. I think Cub bud ran into the same thing when he and others redid Dad's H.
"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: 19101
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: Wiring Question

Postby Stanton » Wed Nov 27, 2013 10:34 am

John *.?-!.* cub owner wrote:I had never thought much about it, since that diagram works for a cub, but as Eugene said, an H normally uses a separate starter switch. I never saw an H or M with the switch on the starter. Cub, A, B, Super a, C and Super C, yes, but not H or M. I think Cub bud ran into the same thing when he and others redid Dad's H.


Apparently, there was a starting switch on the starter at some point (early?), because the Parts Manual shows it:

http://www.cleancomputes.com/Cub/H%20-% ... e%2051.jpg
User avatar
Stanton
501 Club
501 Club
 
Posts: 2167
Joined: Mon Jun 22, 2009 6:56 am
Location: Lone Jack, MO
Zip Code: 64070
Tractors Owned: 1947 Farmall Circle Cub, serial #2116
1948 Farmall Cub, serial #46066
1949 Farmall Cub, serial #65937
Cub-54 Blade
Cub-193 Moldboard Plow
Cub No. 23-A Tractor Disc Harrow
Grosshart Post Hole Digger
Prewitt Conversion Unit
McCormick-Deering No 100 Manure Spreader
Cub-22 mower
1945 Farmall H, serial #213,651
CCC 782, serial #715729
Circle of Safety Award
Circle of Safety: Y

Re: Wiring Question

Postby John *.?-!.* cub owner » Wed Nov 27, 2013 2:48 pm

I never saw one made that way, but anything is possible. I have some pictures of H serial 533, but cannot tell from them which type switch for sure, but I think it has the push button back on the tank support
http://home.centurytel.net/ejpuckett/Farmall%20H%20533/
"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: 19101
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.


Return to Farmall H & Super H

Who is online

Users browsing this forum: No registered users and 1 guest