Description
Hitachi EX1000 Service Manual
Hitachi EX1000 Index:
SPECIFICATIONS
CONTENTS
CONVERSION TABLE
EXIOOO SPECIFICATIONS
EXIOOO HYDRAULIC CIRCUIT DIAGRAM
EXIOOO ELECTRICAL CIRCUIT DIAGRAM
OPERATIONAL PRINCIPLE
CONTENTS
EXIOOO GENERAL
AIR CIRCUIT
MAIN PUMP AND REGULATOR (KVC932-163L-R1321 PISTON PIJMF
SWING PUMP (KCV925-221L R291 PUMP AND REGULATOR)
PILOT PUMP (IP GEAR PUMP)
CONTROL VALVE (MVPH45 CONTROL VALVE)
HVP02 PILOT VALVE
TRAVEL BRAKE VALVE
HTM 500. MOTOR
SWING MOTOR (MX MOTOR)
FLUSHING VALVE
REDUCTION VALVE (REE REDUCING VALVE)
ACCUMULATOR
EXIOOO MONITOR
EXIOO MONITOR TROUBLESHOOTING
Q DISASSEMBLY AND ASSEMBLY
CONTENTS
HOW TO DISASSEMBLY/ASSEMBLY HYDRAULIC EQUIPMENT
MAIN PUMP (KVC932 PISTON PUMP)
REGULATOR 81321 REGULATOR)
PILOT PUMP (KPR GEAR PUMP)
SWING PUMP (KVC925-221L PUMP)
CYLINDER
CONTROL VALVE (MVPH40 CONTROL VALVE)
PILOT VALVE (HVP02 PILOT VALVE)
TRAVEL MOTOR (HTM800G MOTOR)
TRAVEL BRAKE VALVE (HVBC IOA)
SWING MOTOR (MX750 MOTOR)
CENTER JOINT
ACCUMLATOR
FRONT IDLER
UPPER ROLLER
v MAINTENANCE STANDARD
CONTENTS
l. WEAR LIMIT
II. IMPLAMENT SPEED
Ill. PRESSURE MEASUREMENT AND ADJUSTMENT
IV. HYDRAULIC PUMP PERFORMANCE
V. HYD. MOTOR DRAIN AMOUNT
VI. MEASURING TOOLS
