starter for my 400 will not work

SDE · Jul 11, 2016

I had a new stud installed in the case/field coil. When they put it together, the end plate was bound up on the end of the shaft, and the end plate was only about half way onto the shaft. It was definitely stuck. They told me it was stuck before I picked it up. Evident they were not going to charge me for re assembling it, but they weren't going to spent anymore time on it either. I pulled it apart and deburred the shaft. By putting the cap on backwards, so the brushes are outside the starter, the cap fits nicely on the shaft and turns freely. I put it together correctly(?) and installed it on the tractor. Turned the key and the ground started to smoke. The starter did not rotate. Took the starter off and put it in a vise, and removed the end plate again. The shaft is binding up in the bushing when the pilot diameter of the end plate makes contact with the case. If you pull the end plate far enough away from the case so that the pilot is not started into the case, the starter will spin very fast. I don't understand why it is misaligned. Unless they dropped the armature and bent it. What am I missing here?
Thank you SDE

Janicholson · Jul 11, 2016

The way I see it, they failed to do the job asked of them. Was it taken apart when they got it? is so maybe the shims are in the wrong place pushing the armature too far to the rear (of the tractor). If they volunteered to put it together, and you took it in disassembled, I think it is your task to get it right. However the straightness can be easily determines by putting parallel straight edges on a bench and rolling the armature supported on each end. By the way the smoking ground is a bad ground. Jim

SDE · Jul 12, 2016

Yes, it was apart and I only gave them the case, when I had them replace the stud. When I put the armature in it, it did not feel correct and I thought that the stud protruded to far into the case to provide adequate clearance for the armature to rotate freely. I took the entire starter back to them, so that they could correct what might be wrong. One of the bolts would not fit between two of the coils, which was the other reason I took it back. They attempted to put the end plate on it and stopped when it would not go on more than half way. When I had it together, the shaft came to the end of the bushing in the end plate. I will pull it back apart and see if they still have the stud out too far.
Thank you Jim
SDE

starter for my 400 will not work

SDE

Well-known Member

Janicholson

Well-known Member

SDE

Well-known Member

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