Help Troubleshoot 1978 JD 400

/ Help Troubleshoot 1978 JD 400 #1  

cartod

Platinum Member
Joined
Aug 28, 2008
Messages
866
Location
Northern, West Virginia
Tractor
JD 4066, 1023
Plowed today for 2 hours, when I went to start it again it turned over and then the electrical system died. No lights, no starter no nothing. Battery checks out fine. Where should I start????

photo1_zpsd45b354c.jpg
 
Last edited:
/ Help Troubleshoot 1978 JD 400 #2  
Ground strap.
 
/ Help Troubleshoot 1978 JD 400
  • Thread Starter
#3  
I found a wiring diagram and it shows no fuses but a 25a circuit breaker. I followed the ground from the battery to the engine, looks grounded to me.
 
/ Help Troubleshoot 1978 JD 400 #4  
Check and clean/tighten all FOUR(4) battery cable ends and report back.
 
/ Help Troubleshoot 1978 JD 400 #6  
Sounds like something that happen to me,i knocked off the wire to the electric clutch it was completely dead.get down by the front tire and look under motor where the pulleys are that is where your electric clutch is see if wire is dangling.
 
/ Help Troubleshoot 1978 JD 400
  • Thread Starter
#7  
I knocked it around real good today pushing snow, Im sure now that I jogged something besides my neck .. thanks, I will let you know what it was. Hoping its easy.
 

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