UPPERSTRUCTURE / Control Valve Arm Anti-Drift Valve 11 12 13 10 8 7 6 4 3 2 1 9 17 18 5 14 15 16 17 19 20 Bypass Shut-Out Valve 21 22 Load Check Valve-1 23 27 Load Check Valve-3 24 28 27 28 33 Load Check Valve-4 29 29 27 34 Load Check Valve-5 25 30 31 30 28 35 31 29 30 27 28 27 28 31 29 36 38 30 30 31 37 31 39 40 41 W1 Ｊ 1-02-05-052 W2-5-18 Load Check Valve-2 26