NX5010 Trouble with Safety Switches

[justman777]

Safety switches are great....until they aren't. :smiley_aafz:

 

[dusty3030]

Based upon your initial description I知 not convinced that any of the safety switches are at fault yet, but if you are, then disregard this reply.

Have you completely tested the key switch? It has been problematic for some people. Here is the test procedure for the key switch:

View attachment 668061

Does anyone know how path of the circuit from the ST wire on the key switch to ultimately the starter? I wish I had a good schematic for this thing.

 

[AWSubie]

 

[dusty3030]

Thanks!!!!!!!!!
I wonder if the "starter motor inhibit" relay is the one that clicks when I turn switch to start.
When I turned to start I hear a relay click. It is one of the ones visible when you open the hood next to the slow blow main fuses. It has power to it when key is off. When key is on it completes the circuit and has power in and out. When I turn to start it clicks and opens the circuit killing the power out.

Interesting.

 

[dusty3030]

*****DISCLAIMER***** I don't advocate doing this. If you choose to do this you are doing at your own risk.
I jumped the negative terminal on the start relay to a frame ground. Starting problems for me are over.

When it would or would not start, the relay was getting the positive current from the ignition switch; however, what was missing when it would not start was the path to ground connection from the ECU. When mine is working the negative connection on the start relay was completed by the ECU like it was supposed to according to the diagram posted above. I kept a meter in the tractor all the time and checked when it was working and when it wasn't to figure out what exactly was going on with my tractor.
So far, no codes or other problems. If you do this, you will have bypassed all the safety switches so do so at your own peril.

I'm still waiting on a new safety module from my dealer. He has on order to swap out under warranty. He did confirm that his Kioti rep said they were having a problem with these.

 

[justman777]

Looks like you got it figured out! I'll keep that little trick in mind, because it could help with troubleshooting a safety switch issue.

 

[MinnesotaEric]

Have you checked that the main PTO switch is not engaged?

Also have u tested the engine start relay? (Procedure below)

View attachment 668121

There we go: hunting down the no start, I know my starter switch is flakey since it failed continuity testing. However, your post got me going. I need this page you posted and the following two pages to diagnose the no-start relay-wise (I'll wait for the new start switch to come in). For those tagging along the page numbers are 12-56 to 12-58 (or for those printing, pp. 730-32).

Thank you!

BTW, it is snowing outside and I need to plow but I'm not going to try without an operating fuel heater.

 

[WRX]

One thing I miss about my old DK35 was the lack of all these safety switches, for the convenience, and simplicity. My new NS4710 is less likely to kill me but more likely to drive me crazy.

 

[SlackerHQ]

I am having similar issues on a 2020 NX6010c - The tractor would not start after being shut off. After checking most of the items in this post... I found I had blown the display/safety fuse - its a 10 amp fuse. Problem is, I keep blowing them. I cant find what is causing it to blow

 

[MinnesotaEric]

I am having similar issues on a 2020 NX6010c - The tractor would not start after being shut off. After checking most of the items in this post... I found I had blown the display/safety fuse - its a 10 amp fuse. Problem is, I keep blowing them. I cant find what is causing it to blowView attachment 729509

Something is rubbing in the harness or mouse damage. For giggles, have you tried swapping in a 10A circuit breaker fuse? https://amzn.to/32ozM4q

I use these things in winter when it is too much of a PITA due to weather conditions to properly diagnose the problem until spring.