electrical problem

farmalmarkmark · Feb 23, 2012

I have a 1950 farmal H 6 volt positive ground tractor with electric start. I have placed a full charged battery in the tractor, turned on the lights and they were very bright. I then pushed the starter button and the engine barely turned over. I pushed it again and nothing happened. The lights are very dim now. I have polished the terminals and wiggled the leads from the battery to the starting switch and to the starter-this does not make any difference. Could this be a defective starter? Could I test the starter by touching the battery leads directly to the starter terminals?

John T · Feb 24, 2012

First of all "wiggling" is no substitute for what I recommend which is to remove,,,,,,,,,,clean and wire brush all shiny,,,,,,,,,and replace each and every battery and starter and switch and especially FRAME GROUND cable and connection then try it again.

If when you push the start switch the lights dont dim down and/or the voltage dont drop much the problem may be the start switch contacts are burned and pitted and resistive (but still could be maybe starter brush problem)

However, if the lights dim wayyyyyyyyy down and voltage drops drastically IF ALLLLLLLLLL CABLES N CONNECTIOSN ARE GOOD???? Id suspect a starter problem instead of the switch

Yes you can by pass jump the switch direct to starter but thats a HIGH current jump remember and requires heavy jumper cables and good connections

Id suspect a cable or connection or ground problem BEFORE the rest

John T

electrical problem

farmalmarkmark

New User

John T

Well-known Member

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