Dk 40 hst clunks when switching in &out of 4 wheel drive

[derek01]

Indylan I just got the tractor back (5) weeks you were right hydraulic cylinder was replaced and switch under last 2 years of the drivetrain warranty seem s to be fine now. Thanks all for the help

 

[MotorSeven]

On my 40 hst, I always come to a compete stop, then hit the switch, then back up 8-10 feet before going forward...no clunk.

Derek...shuttle of HST?

 

[IndyIan]

Good to hear you got it fixed under warranty.
When I look at the diagram I don't really see what difference it makes to be stopped or not when engaging 4wd, and for the first few days I only made sure the tractor was going straight with no real load on the drivetrain and it seemed to work fine but now I stop every time. Better safe than sorry and no one is paying me by the bucket load.

 

[derek01]

HST I tried every different way to drop it out of 4wd nothing worked dealer thought he would have to get into the tranny at first but fortunately it was the solenoid and switch. Seems to be fine now.