Problem Relating to #2 Fuse Blowing on New Holland

   / Problem Relating to #2 Fuse Blowing on New Holland #1  

CoveyBruce

Member
Joined
Dec 8, 2012
Messages
34
Location
United States
Tractor
New Holland TC35D 2001
Ok, so I have a problem relating to the notorious #2 fuse that blows randomly, although this has gone further.
I'll got through everything that happened.
Lately I've been using our New Holland TC35D tractor alot. Mainly dirt work with the bucket and box scraper. Well, yesterday I did mostly a full days work with it, never even got close to overheating, gauge was always in the middle of the green.
When I was almost done for the day the tractor randomly just shut off on me. I've had the problem with the #2 fuse before and had replaced it with a circuit breaker years ago. So I new the signs immediately, and the breaker usually take's anywhere from 10 to 30 mins to reset, so I left it where it was and let it sit.
Came back to it a half hour later and it had reset but it just popped the breaker again, so I left it again. I did this a couple times throughout the day and it always kept popping the breaker. And just to point this out, it pops it when I turn the key on, NOT when I try to start it.
Then at the end of the day I came back and tried it one last time, only this time it didn't seem to pop. But the lights on the dash looked dim, and I didn't think it looked quite right. Then I smelled the smoke, I instantly shut the key off.
I was a little panicked cause lately I've been having different problems with the tractor and I didn't want to spend another week fixing it!
Well, I let it cool down and then tried to turn it on. But obviously something had gotten to hot. The key was hard to turn and when I did get it to turn I heard the usual click, but none of the dash lights came on.
All I can guess is that the circuit breaker I had installed in the #2 fuse slot had gone bad and decided to get stuck in the on position, causing the current running through it to melt some wires and obviously the key ignition switch.

So, first of all I would like some clarification if the original problem with the #2 fuse blowing is caused by the fuel solenoid or the starter solenoid? Remember that it blows when I simply turn the key on, not when I try to start it. And if I replace the solenoid that's causing the problem will it fix it?

And then second, what else might have gotten ruined when everything heated up due to the current? I know the ignition switch needs to be replaced, but what else is in the path of that wire that also might have melted?
Also, I did not get a chance to see where the smoke I smelled was coming from. It was dusk out so I couldn't see it.

Thanks in advance!
 
   / Problem Relating to #2 Fuse Blowing on New Holland #2  
You have a wire that is grounding out. That is what caused the fuse to blow. The CB is doing the same thing. You need to find the wire that is shorting out.
Since you smelled burning, finding the wire should not be difficult. If you do not see the wire at first look, look where the wires pass through the panels or bulkheads. Any place the wires can rub on metal.

The wire that has shorted is powered by the switch. With the key turning hard you may have damaged the switch.
 
   / Problem Relating to #2 Fuse Blowing on New Holland
  • Thread Starter
#3  
Ok, thanks! I actually just remembered that when we bought this tractor the previous owner had bypassed the seat switch and left the wires uncovered. We had put a wire nut on it but when I just checked it, it was missing.
So I fixed that with another wire nut and tape. Then I bypassed the ignition switch with a couple wires and the tractor is running again.
So I guess I'll be buying another ignition switch!

davesI708 - Thanks for the help, your post triggered my memory!
 

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