UPPERSTRUCTURE / Control Valve DISASSEMBLE CONTROL VALVE 4-SPOOL SIDE 6 5 4 Check Valve (Arm Regenerative Circuit) 3 9 10 8 7 2 16 6 1 12 11 4 15 3 7 8 13 14 19 20 Overload Relief Valve (Bucket: Rod Side) 21 13 22 23 30 7 24 25 26 Boom Anti-Drift Valve 8 19 18 17 10 9 29 28 42 43 32 20 Overload Relief Valve (Boom Bottom Side) 33 46 45 44 37 34 35 48 44 43 31 36 45 49 47 38 6 51 50 38 39 38 53 52 38 38 39 41 38 Right Travel 38 39 41 Bucket 39 38 52 41 54 58 57 56 55 Boom 1 59 Arm 2 41 63 59 Arm Regenerative Valve 4 62 60 W1V7-02-05-017 61 W2-5-4