John Deere 4100 Electrical Problem

[Blaneypark]

I have a JD4100 that while blowing snow will just quit. If I let it sit, sometimes it will start. I'm thinking maybe it is in the key switch. Any Ideas out there.

 

[DFB]

Thats not much to go on could be a safety interlock switch problem pto or seat or even a battery cable. Is it a gear or hydro? So after it stops what happens...do you have dash lights headlight etc? Does the starter turn over?

 

[Blaneypark]

After it stops I have nothing. No lights, heater fan, nothing. Everything is dead. Went out after it sat an hour and it started right up. It is hydro drive. Just cleaned the battary cables last week and they are tight.

 

[DFB]

Ahh thats a much clearer picture. On a 4100 the power goes from the battery to starter first then thru fuseable link to key switch. That starter connection may be loose. Also on that side (left) is a frame ground wire. Good place to start looking. Check battery to ground too

Key switches can be continuity checked if it came to that I have circuit diagram

When key is turned to start 12v power runs to starter relay (in conjuction with the control module) and back to the starter solenoid

 

[Blaneypark]

I have jiggled wires on the left side of the engine and sometimes it will start. I talked with a JD Dealer a few years back and I remember him saying something about the wireing being a fuseable(???) wire that can go bad. I'm up to my ***** in snow in Northern Mi. but in the morning will check check and clean all the connections you mentioned. Thanks.

 

[DFB]

Certainly sounds like a poor connection in the starter circuit

 

[Blaneypark]

I cleaned every connection I could find. Ran it for 5 hours and no problems. Time will tell.

 

[DFB]

Good! My 4100 is a 1999 model year and unbelievably I am still using the original battery. Just as an FYI for 4100 owners thinking back I remember once I had a battery charging issue and it turned out to be that one of the oem bandstyle battery cable clamps (negative cable) had a crack in it that was hard to see and no matter how much I tightened the bolt it didnt hold a good connection.

 

[RitchElbe]

continued with another wiring issue. Installed basic Halogen flood lights on the ROPEs. Which ground through the frame. under the seat, there are two pairs of wires in the bundle with the wiring for the flashers. These are simply one black , one white. Each set of wire bundles. Before I simply connected the hot to the white lead of one of the bundles and I had power. Some punk from the trailer park shot those lights out, hence the new ones. This are working great. Wind picks up, just as I step back to prepare the shrink rap..hot lead comes loose from the white, the would be ground from the lights swings over in the wind and touches the white hot lead. The main head lights dimmed for a nano second and now I have no power on either of the white hot leads. I tested the new wiring to the lights via a battery I had lying around and they are still working. I checked the 4 fuses under the hood and they are good....any thoughts?

 

[Towmater]

I have a JD4100 that while blowing snow will just quit. If I let it sit, sometimes it will start. I'm thinking maybe it is in the key switch. Any Ideas out there.

Check out my thread.... 4100 charging problem. Mine would quit while running and drain the battery. http://www.tractorbynet.com/forums/showthread.php?p=2610574.