UPPERSTRUCTURE / Control Valve REMOVE AND INSTALL CONTROL VALVE Removal 2 1 CAUTION: Release any pressure in the hydraulic oil tank before doing any work. (Refer to BLEED AIR FROM HYDRAULIC OIL TANK on W1-4-1.) 1. Remove bolts (2) (4 used) from covers (1) (2 used). Remove covers (1) (2 used) from the main frame. : 19 mm 2. Remove solenoid valve (3) and signal control valve (4) from control valve (5). Move solenoid valve (3) and signal control valve (4) outside the space for removal and installation of control valve (5). (Refer to “Remove and Install Solenoid Valve” on W2-9 and “Remove and Install Signal Control Valve” on W2-10.) 3. Remove all hoses and connectors from control valve (5).
Cap the hoses and control valve (5). Attach identification tags to the removed hoses for reassembling. W1J1-02-05-061 3 5 4 : 17 mm, 19 mm, 36 mm : 8 mm, 10 mm 4. Install eyebolts (M12, Pitch 1.75 mm) (4 used) to control valve (5). W1J1-02-10-001 Eyebolt Mounting Position (M12, Pitch 1.75 mm) 5 Swing Arm 2 Arm 1 Boom 1 Boom 2 Bucket Auxiliary Right Travel Left Travel W1J1-02-05-058 Eyebolt Mounting Position (M12, Pitch 1.75 mm) W2-5-1