CRANE TROUBLE,TURNING LEFT WITHOUT CONTROLLING

THE NMF CRANE PROBLEM,THEY TURNING LEFT BY ITSELF,WHEN WE START THE HYDRAULIC PUMP,FIRST REMOVE CONTROLLER BUT STILL MOVING., WATCH AND LEARN GUYS, IN THIS VIDEO TO KNOW WHAT PARTS I REPLACE THAT CAUSE OF THE CRANE MOVING BY ITSELF.. ELECTRICAL TROUBLE SHOOTING EXPERIENCE AND KNOWLEDGE SHARING VIDEO