hitachi — SECTION 2 UPPERSTRUCTURE

Group 6 Swing Device Remove and Install Swing Device..........W2-6-1 Group 12 Fan Valve Remove and Install Fan Valve ..............W2-12-1 Disassemble Swing Device....................W2-6-4 Structure of Fan Valve ..........................W2-12-4 Group 13 Fan Motor Remove and Install Fan Motor..............W2-13-1 Assemble Swing Device.......................W2-6-14 Disassemble Swing Motor ..................W2-6-24 Assemble Swing Motor ........................W2-6-28 Maintenance Standard .........................W2-6-32 Group 7 Pilot Valve Remove and Install Pilot Valve...............W2-7-1 Structure of Fan Motor........................W2-13-25 Group 14 Engine Remove and Install Engine.................W2-14-1 Disassemble Right and Left Pilot Valves .........................................W2-7-18 Assemble Right and Left Pilot Valves .........................................W2-7-22 Assemble Travel Pilot Valve.................W2-7-30 Group 8 Pilot Shut-Off Solenoid Valve Remove and Install Disassemble Travel Pilot Valve ............W2-7-26 Pilot Shut-Off Solenoid Valve ...............W2-8-1 Structure of Pilot Shut-Off Solenoid Valve ...............W2-8-3 Group 9 Solenoid Valve Remove and Install Solenoid Valve........W2-9-1 Structure of Solenoid Valve ....................W2-9-3 Disassemble and Assemble Proportional Solenoid Valve......................................W2-9-4 Group 10 Signal Control Valve Remove and Install Signal Control Valve ......................................W2-10-1 Structure of Signal Control Valve..........W2-10-3 Group 11 Shockless Valve Remove and Install Shockless Valve ...

W2-11-1 Structure of Shockless Valve................ W2-11-3 1J1W-2-2