WORKSHOP MANUAL SECTION 1 GENERAL INFORMA- TION Group 1 Precautions for Disassem- bling and Assembling Group 2 Tightening Torque Group 3 Painting Group 4 Bleeding Air from Hydraulic Oil Tank SECTION 2 UPPERSTRUCTURE SECTION 3 UNDERCARRIAGE Group 1 Swing Bearing Group 2 Travel Device Group 3 Center Joint Group 4 Track Adjuster Group 5 Front Idler Group 6 Upper and Lower Roller Group 7 Track SECTION 4 FRONT ATTACHMENT Group 1 Cab Group 2 Counterweight Group 3 Main Frame Group 4 Pump Device Group 5 Control Valve Group 6 Swing Device Group 7 Pilot Valve Group 8 Pilot Shut-Off Solenoid Valve Group 9 Signal Control Valve Group 10 4-Spool Solenoid Valve Unit Group 11 Engine Group 1 Front Attachment Group 2 Cylinder Group 3 Control Valve