EE HAD FINISHED CLEANING THE TAILPIECE ON 101 SILO BELT. HE STATED WHILE DRIVING DOWN A STEEP INCLINE TO THE BELT CONTROL ROOM, THE TRUCK SEEMED TO JUMP OUT OF GEAR, AND THE POWER STERRING FAI LED. THE BRAKES ALSO FAILED, AND HE MANUALLY STEERED THE TRUCK INTO THE DITCHLINE AT THE LEFT. THE TRUCK STOPPED APPROX 30 YDS AWAY. HE FELT PAIN IN HIS BACK NECK AND RIGHT WRIST.