BODY (UPPERSTRUCTURE) / Cab 4. Remove sems bolts (17) (3 used) from clamps (18) (3 used). Disconnect hose (19) between charging block (4) and main pump (11). Disconnect hoses (14, 16) between charging block (4) and the rear side of hydraulic oil tank (15). Pilot Shut-off Valve 15 (Rear Side of Hydraulic Oil Tank) 4 14 : 14 mm, 17 mm 5. Disconnect hoses (21, 22) between pilot valve (20) and main valve (23). 16 17 18 19 11 W4GB-02-01-004 20 21 : 19 mm, 22 mm 6. Disconnect hoses (25, 26) between steering pilot valve (24) and stop valve (27). 22 W4GB-02-01-005 23 : 19 mm, 22 mm Front Steering Valve 24 25 26 W4GB-02-01-006 27 W2-1-2