SECTION 1 GENERAL CONTENTS Group 1 Precautions for Disassembling and Assembling Precautions for Disassembling and Assembling............................................ W1-1-1 Maintenance Standard Terminology......... W1-1-7 Group 2 Tightening Tightening Torque Specifications ............. W1-2-1 Torque Chart............................................ W1-2-2 Piping Joint.............................................. W1-2-5 Periodic Replacement of Parts ................ W1-2-9 Group 3 Painting Painting ................................................... W1-3-1 Group 4 Bleeding Air from Hydraulic Oil Tank Bleeding Air from Hydraulic Oil Tank........ W1-4-1 4GCW-1-1