Starter for John Deere M

hrbburn · Jan 12, 2016

Needing starter for a John Deere M. My sons just quick working. I have took it apart and tested what I could and did not find anything wrong. A couple times I could put my charger on it and get it to spin on the bench but then it quit even doing that. The brushes appear to be ok, there is continuiety where it should and not where it shouldn't. Don't know what else I can test.

Andy Martin · Jan 12, 2016

Take it to a starter shop and let them test it. Sounds like a bad post.

teddy52food · Jan 12, 2016

Are the bushings loose so the armature is dragging? It takes a big charger to test them. Better to use a good battery.

Gene Davis (Ga.) · Jan 12, 2016

I worked for a Deere dealership when these tractors were popular,and the starters on those tractors had a very poor excuse for a ground to begin with from the factory. This is something we found necessary to do on all of them. You need to run a ground wire direct from the battery to one of the bolts that hold the starter together. After you install the starter to the tractor, remove one of the through bolts that hold the starter together. Clean the paint off of a spot where the head was and then attach the ground wire there and tighten it down. You could also put a lug under the bolt head when you assemble the starter and attach the ground wire to the lug. Those tractors were originally 6-volt positive ground from the factory.

Bob · Jan 12, 2016

That would be my first guess... a bad solder joint where the input terminal stud is soldered to the heavy copper field windings.

CCer · Jan 13, 2016

I had a slow starter one time, as you said, only one field had a good connection to the stud. Re-soldered the connection, good to go!

Starter for John Deere M

hrbburn

Member

Andy Martin

Well-known Member

teddy52food

Well-known Member

Gene Davis (Ga.)

Well-known Member

Bob

Well-known Member

CCer

Member

Similar threads