BODY (UPPERSTRUCTURE) / Cab 4. Remove sems bolts (17) (2 used) from clips (18) (2 used). Disconnect hose (19) from charging block (4) and main pump (11). Disconnect hose (16) from charging block (4) and the rear side of hydraulic oil tank (15). 15 (Rear Side of Hydraulic : 14 mm, 19 mm, 22 mm 5. Disconnect hoses (21, 22) from pilot valve (20) and main valve (23). 16 17 W4GB-02-01-004 20 21 : 19 mm, 22 mm 6. Disconnect hoses (25, 26) from steering pilot valve (28) and stop valve (27). 22 W4GB-02-01-005 23 Front Steering Valve : 19 mm, 22 mm 28 25 26 27 W4GB-02-01-006 W2-1-2 4 Oil Tan Valve 18 19 11