Farmall 340 switch

BIGR

Member
I went to shut off my 340 last night with the key and it kept running. Had to pull the coil wire. With the motor off, turned the key on the amp gauge shows discharge, turn key off and the amp gauge goes to zero. Started the motor again and the key wouldn't shut it off. Is the switch bad? Was working fine all day before that. I'll replace the switch, just wondering if there's something else to check? It's got an alternator with 12V.
 
The 12-volt conversion probably wasn't done right. Check the diode installation instructions that are in many old posts.
 

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Back
Top