I have a JCB 8045 ZTS from 2008 During work, the fuse broke, after changing this, the throttle raise RPM when i am turning it up, but will not go down again. To get it down i have to move it manually, out by the engine. Any ideas what to check an do? Is it a normal thing that the engine throttle control suddenly breaks? Or could it be something else, like the ecu control unit?
Check for more blown fuses.
No more blown fuses or broken electrical wires. I now suspect it is the Throttle controller that is broken, because it wont give power to the throttle engine.