Excavator Komatsu PC2000-8 Travel Motor Assembly 706-7L-01111 706-7L-01110 Visual & Functional Inspection Weak Travel on One Side Poor climbing performance, machine pulls to one side while other side works normally Suspect: Internal leakage of travel motor, stuck two-speed valve, dragging brake or cross leakage inside swivel joint Test Procedure: Swap left & right travel hydraulic lines If fault moves with hoses → problem on main control valve / swivel joint If fault stays on