6 volt Farmall Starter

S/C BOB · Oct 20, 2009

I m trying to fix a starter that I have. It wouldn t do anything on the tractor I ve had the armature checked and it was good the brushes look good I m thinking it might be a field coil can I check these with my meter? Any other suggestions? As alway thanks.

ScottyHOMeY · Oct 20, 2009

Assuming you have battery power elsewhere on the tractor, like lights, you might check out the function of the starter switch, as well as the condition of the copper contact on the starter body that the switch makes contact with.

Wayne in MN · Oct 20, 2009

You need to be sure the cables and ends are in top condition; Use 2 gauge or larger for best results with 6 volts.

Jeff Z. · Oct 20, 2009

Yes , The field coil can be checked with a meter.
Just search on google "Checking Field Coil On Starter Motor".
You should find alot of info.

John T · Oct 20, 2009

The field coils need, of course, to be continuous i.e. no open circuits PLUS they cant be shorted out to case/frame/pole shoes.

Other suspects BESIDES the starter are:

1) Cables, connections, terminations, grounds. Id remove, clean n wire brush n reattach each n every one including battery of course and start switch n starter......

On 6 volt I recommend at least 0 better yet OO gauge battery n starter n ground cables NOT No 2 ..

The mechanical push down starter switch can go bad..

If its a saddle mount push mechanical switch it or often the starters big copper post under it can get all burned n pitted n carboned up..

Its more often a battery or cable or ground or switch or copper post problem (under saddle mounted switches) then the starter...

John T

Bob M · Oct 20, 2009

In addition to the advice offered below a couple other things to look at:

1 - If the starter has a saddle mount switch (switch mounts right atop the starter housing) a worn contact button on the starter will cause dead starter - even when a new switch installed.

2 - If the starter has a remote mounted switch (a heavy cable connects the switch to the starter) frequently the solder joint where the underside of the terminal post connects to the field winding straps breaks when the terminal nut is tightened.

In either case unless you have specialized (ie BIG!) soldering tools, the fix is best addressed by a competent starter shop.

Dave H (MI) · Oct 20, 2009

I just went thru that on a 6 volt Ford system...it were a trial. You need to start at the battery and work thru the whole circuit. Test the battery. Make sure the cables are the recommended size for 6 volt as mentioned below. Check your switch for continuity. Make sure every single connection has been disassembled and cleaned bright including where the starter grounds to the engine. Tighten it all down good. You learn thru experience that 6 volt systems can be sensitive to bad connections because of dirt and rust. "Clean, bright, and tight" with apologies to the N board guys!

6 volt Farmall Starter

S/C BOB

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ScottyHOMeY

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Wayne in MN

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Jeff Z.

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John T

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Bob M

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Dave H (MI)

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