LA115 Engine Dies Out

[mauisundevil]

Okay, I tried searching for my problem using various key words on this site, got nothing. Hopefully you masters could help me out. I wrench for a living so diagnosing problems with various test equipment is not a problem.

First, I have an LA115. It starts fine and moves forward and reverse fine. Strange part is I am able to get off the seat and it will still run. I am able to unplug the connector at the seat switch and the engine will still start, run and will not die out. It did not do this before. Before, with the engine running, the engine would just die out when I get off the seat. Now with the engine running, the engine will die when I move the engagement lever forward to start spinning the blades. I checked the pulleys, they all spin fine, none are frozen. I unplugged the switch at the engagment lever, the engine will not start. I did find some water dripping form the seat. It has been sitting out in the rain lately. So the seat got soaked.

After some research in the owners manual I found on the John Deere site, it mentions a "Safety Interlock Circuit". Does here have a wiring schematic of this circuit? If I can't figure it out, I will end up just ripping out the wires and make my own wiring loom but get rid of all of these safety stuff.

 

[leon]

LA115 problems UGH!!!

Okay, I tried searching for my problem using various key words on this site, got nothing. Hopefully you masters could help me out. I wrench for a living so diagnosing problems with various test equipment is not a problem.

First, I have an LA115. It starts fine and moves forward and reverse fine. Strange part is I am able to get off the seat and it will still run. I am able to unplug the connector at the seat switch and the engine will still start, run and will not die out. It did not do this before. Before, with the engine running, the engine would just die out when I get off the seat. Now with the engine running, the engine will die when I move the engagement lever forward to start spinning the blades. I checked the pulleys, they all spin fine, none are frozen. I unplugged the switch at the engagment lever, the engine will not start. I did find some water dripping form the seat. It has been sitting out in the rain lately. So the seat got soaked.




Aloha,


You have severe case of "water in seat safety switch harness connectoritus".
If you can separate the seat switch connector safely you wil need to put in some non conductive electrical grease to protect the pins and socket of the connector for the seat safety switch.

Please put a garbage bag over the entire seat and flip the seat up to protect the connector in the seat from now on.

A can of aerosol electrical contact cleaner works well but is 15 dollars a can here on the mainland

Tilting the seat up and using a garbage bag and electrical grease works very well.

I keep the Seat up on my LA115 whenever I am done with it here in New York State.

Happy thanksgiving,



After some research in the owners manual I found on the John Deere site, it mentions a "Safety Interlock Circuit". Does here have a wiring schematic of this circuit? If I can't figure it out, I will end up just ripping out the wires and make my own wiring loom but get rid of all of these safety stuff.