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Posted

I think that machine shifts into 4wd electronically, if the machine shifts into 4wd manually, start by checking the linkage. If it shifts electronically, there is an actuator assembly on the front drive assembly, I believe that it engages the front diff as well as the diff lock, there is a plug that goes into it. Check the plug for a good connection and check the wires for any damage.

  • 2 weeks later...
Posted

There are two causes for this problem.

The first is that the cable needs to be adjusted. Yes even though it is electronic there is a cable.

Or two the electronic switch has water in it. In this case you can usually hear the switch cycle on and off after getting wet. The solution is to take it apart and reseal it just watch out for the spring mechanism.

Posted

One reason for it to do what you describe is if the diff lock cable is out of adjustment. I had that happen on my quad and even if you do not select 4WD if the diff lock is turned on, it will kick in the 4WD. I can post the procedure from the service manual on how to adjust it.

Mike

  • 11 years later...
  • 6 months later...
Posted

There’s a spring in the front diff to hold it in 4x4 when the actuator is relaxed (out). If the spring is broke, it will likely stay in 2x4 or jump in and out. Also, check the 4x4 relay under the seat, you can swap it with the one next to it to troubleshoot an intermittent problem there.

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