UPPERSTRUCTURE / Control Valve 99 W1V7-02-05-020 W2-5-42 Arm 1 Flow Rate Load Check Valve Control valve 81 79 56 57 80 104 58 59 78 60 61 20 62 13 63 13 77 64 65 82 66 70 67 71 68 8 69 Check Valve 72 (Auxiliary Flow 73 13 Combining Circuit) 74 Arm Anti-Drift Valve 20 91 Digging Regenerative Valve 6 91 Auxiliary Flow 93 Combining Valve 96 92 92 97 6 93 94 95 52 load Relief Valve : Bottom Side) 98 101 52 51 98 52 102 51 100 52 98 103 51 52 98 51 51 10 9 8 7 6 5 83