Has anyone dealt with a Case 650K that stays stuck in forward no matter what gear is selected?

[Elixer G]

Has anyone dealt with a Case 650K stuck in forward all the time? Machine starts fine, but it keeps trying to move forward in F, N, or R unless the brakes are applied. Dash shows FNR correctly and there are no fault codes. Replaced relays, fuses, terminals, and even tried another drive controller with no change. Forward pressure is present immediately at startup. Thinking maybe a stuck solenoid or control valve issue. Any ideas?

 

[Mc Wyndell]

A stuck forward solenoid or control valve could definitely cause this issue.

 

[randdyarroyo]

If you already swapped the controller and checked the wiring, I'd put pressure gauges on both the forward and reverse clutch circuits. If forward pressure comes up immediately at startup regardless of the lever position, the control valve or clutch modulation valve is probably hanging up internally.

 

[mdsawkathossenraihan]

Yeah, if you've already swapped the controller and checked the electrics, it's almost gotta be mechanical or hydraulic. A stuck spool in the control valve or a bad solenoid sealing internally would keep that forward clutch pressurized. Let us know what you find when you pull it!