hitachi — ASSEMBLE CONTROL VALVE (4-SPOOL HOUSING SIDE)

UPPERSTRUCTURE / Control Valve ASSEMBLE CONTROL VALVE (4-SPOOL HOUSING SIDE) W1J1-02-05-044 W2-5-10 Boom Flow Rate Bypass Shut-Out 38 10 Control Valve 10 33 34 32 31 Valve 38 Bypass Shut-Out Valve Load Check Valve 10 Boom Anti-Drift Valve Arm Flow Section of Bypass Shut-Out Valve Figure of Control Valve (Right) Rate Control Valve Arm Flow Rate Boom Anti-Drift Valve Boom Flow Rate Control Valve (Refer to Close-Up.) Control Valve (Refer to Close-Up.) (Refer to Close-Up.) 38 38 Section of Arm Flow Rate Section of Boom Flow Rate Control Valve, Control Valve Boom Anti-Drift Valve 42 (51) 40 (52) 45 12 16 11 9, 8 7 6, 5 3 45 45 13 2 14 14 44 1 15 15 41 4 19 19 48 8 8 39 17 46 8 47 18 21 49 ( ):

No.

at Arm Side 50 (53) 17 Close-Up of Boom Flow Rate Control Valve, 22 Arm Flow Rate Control Valve 8 25, 24 23 Load Check Valve 26 27 38 20 Close-Up of Boom Anti-Drift Valve Section of Load Check Valve Boom Flow Rate Control Valve 10 33 34 32 31 Bypass Shut-Out Valve 38 10 ypass hut-Out alve Load Check Valve 10 Boom Anti-Drift Valve rm Flow Section of Bypass Shut-Out Valve Figure of Control Valve (Right) ate Control alve Arm Flow Rate Boom Anti-Drift Valve Boom Flow Rate Control Valve (Refer to Close-Up.) Control Valve (Refer to Close-Up.) (Refer to Close-Up.) 38 38 Section of Arm Flow Rate Section of Boom Flow Rate Control Valve, Control Valve Boom Anti-Drift Valve 42 (51) 40 (52) 45 12 16 11 9, 8 7 6, 5 3 45 45 13 2 14 14 44 1 15 15 41 4 19 19 48 8 8 39 17 46 8 47 18 21 49 ( ):

No. at Arm Side 50 (53) 17 Close-Up of Boom Flow Rate Control Valve, 22 Arm Flow Rate Control Valve 8 25, 24 23 Load Check Valve 26 27 38 20 Close-Up of Boom Anti-Drift Valve Section of Load Check Valve A R V rm Flow ate Control alve 47 49 ( ): No. at Arm Side 50 (53)