770A - GRADER, MOTOR HYDRAULIC SYSTEM 1060 Parts group HYDRAULIC SYSTEM 1060 HYDRAULIC SYSTEM 1060 . BRAKE VALVE [02J23] BRAKE PEDAL BRACKET [02J24] BRAKE VALVE HOUSING, SHAFT PISTON AND EQUALIZING VALVE [02J25] BRAKE PEDALS, CONNECTORS, AND ATTACHING HARDWARE [02K01] BRAKE LINES FROM VALVE TO TRANSMISSION CASE [02K02] ACCUMULATOR AND BRAKE PRESSURE AND RETURN LINES [02K03] BRAKE ACCUMULATOR [02K04] REPLACEMENT BRAKE ACCUMULATOR [02K05]