Kubota Electrical Problem

   / Kubota Electrical Problem #1  

tnbigal

New member
Joined
Aug 29, 2012
Messages
12
Location
Fayette County, TN
Tractor
Kubota L3400HST
Need so suggestions on what to look for regarding an electrical issue.

2004 Kubota L3400DT-HST

Battery replaced about 3 months ago. Getting nothing when I turn the switch. Lights will not come on, no clicks, no lights on dash, etc.

Here's what I've done/checked:
Battery is reading about 12.7V
All fuses check good.
Getting power at starter (can put a screwdriver from connection to ground and get a spark.
Good connection on battery terminals and on ground side of the battery
Replaced the ignition switch for good measure

I would think most of the normal issues, like seat, pto, neutral, and safety switches wouldn't prevent the dash, hazard, or headlights from coming on.
Even a weak battery, which should be the case, would usually get a dim light or a click. Worked fine one day, dead the next.

Any ideas?
 
   / Kubota Electrical Problem #2  
I'd check each and every fuse I could find, particularly the large amp ones.
Other than that, dunno....
 
   / Kubota Electrical Problem #3  
Check the ground where it connects to the tractor.
 
   / Kubota Electrical Problem #4  
Check both battery cables. Sometimes corrosion goes down the wire under the inulation and a wire that looks good is not.
 
   / Kubota Electrical Problem #5  
once you make sure bat cables are good. look at the load center.. find the main power feed for it and trace it / check it. might have a fuseable link feed.. or fuse..

post back
 
   / Kubota Electrical Problem #6  
Looking at the wiring diagram I would check the 2 40amp fuses next to the battery and if they check good would look at wiring before and after those fuses.
 
   / Kubota Electrical Problem
  • Thread Starter
#7  
Checked all that you suggested. Somehow in the middle of all that the tractor started making a noise, and I found a stuck relay behind the dash. moved it and it started working. Played around for a bit and can't get it to fail. Guess I should still order a new one.
 

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