UPPERSTRUCTURE / Control Valve DISASSEMBLE CONTROL VALVE (5-SPOOL HOUSING UPPER AND LOWER SURFACES) Overload Relief Valve-1 W1 Ｊ 1-02-05-054 W2-5-40 Overload Relief Valve-1 46 verload Relief 47 alve-2 48 49 1 50 2 53 3 4 51 Check Valve-2 Check Valve-3 44 52 5 38 45 6 24 39 7 36 23 8 40 54 9 Check Valve-1 55 10 32 41 56 11 31 33 42 12 57 13 37 43 14 32 34 28 15 33 35 29 16 6 37 30 5 34 19 35 20 21 22 23 64 24 26 27 28 29 30 58 59 60 61 62 63 30 29 28 57 56 55 54 23 24 52 51 53 50 49 48 47 46 O V verload Relief alve-2 Check Valve-2 Check Valve-3 38 5 6 7 8 9 Check Valve-1 10 11 12 13 14 15 16 6 5 19 20 21 22 23 24 26