Hitachi ZW550 wheel loader, repair e-manual
About the manual
Engine type: Cummins QSB6.7 / Cummins B6.7
In the manual you will find
- Step-by-step guide to repair various components and assemblies
- Self-care and maintenance instructions
- Wheel loader design and prevention information
- Information for a trip to the service station, if self-repair is not possible
About the manual
Engine type: Cummins QSB6.7 / Cummins B6.7
In the manual you will find
- Step-by-step guide to repair various components and assemblies
- Self-care and maintenance instructions
- Wheel loader design and prevention information
- Information for a trip to the service station, if self-repair is not possible
Content
General information
- How to use manual
- Outline
Measurement for performance check
- Cautions on safety
- Standard measurement values for performance check
Function and structure chassis group
- Front chassis
- Rear chassis
- Center pin
Check and adjustment chassis group
- Linkage pin
- Center pin
Function and structure power group
- Power line
- Engine / transmission
- Radiator
- Propeller shaft
- Axle assembly
- Axle support
- Differential gear
Check and adjustment power group
- Engine
- Propeller shaft
- Axle
Function and structure torque converter and transmission group
- Torque converter
- Torque converter (lock-up) (option)
- Torque Converter Gear Pump
- Transmission
- Clutch pack
- Power flow path in the transmission
- Hydraulic system diagram
- Hydraulic circuit diagram
- Oil flow
- T/C and T/M oil circulation
- Modulator valve unit
- Control valve assembly
Check and adjustment torque converter and transmission group
- Clutch oil pressure and time lag
Function and structure hydraulic group
- Flushing hydraulic circuit
- Cautions on hydraulic parts replacement
- Hydraulic circuit symbols
- Hydraulic system operation
- Layout of hydraulic units
- Hydraulic tank
- Hydraulic pump
- Hydraulic cylinder
- Loading system
- Reducing valve
- Pilot valve
- Multiple control valve
- Adapter
- Ride control
- Steering system
- Orbitrol
- Steering valve
- Stop valve
- Steering line filter
- Efficient loading system
- Fan motor system
- Fan motor line
- Reversing fan motor
- Secondary steering
Check and adjustment hydraulic group
- Loading / steering circuit relief valve / ride control circuit reducing valve
- Hydraulic cylinder
- Stop valve
Function and structure brake group
- Brake system outline
- Brake units layout
- Unloader valve
- Valve unit
- Accumulator
- Brake valve
- Service brake
- Parking brake
- Parking brake manual release
- Brake circuit check valve
- Auto brake pressure sensor
Function andstructure electrical group
- How to use electrical wiring diagram
- Electrical cable color codes
- Electrical circuit symbols
- Sensor mount
- Fuse
- Engine start circuit
- Power generating / charging circuit
- ECM (Engine controller)
- Transmission control circuit and monitor circuit
- Instrument panel and switch
- MODM
- Electrical detent circuit
- Diode
Function and structure operator station group
- Cabin
- Operator seat
- Steering and transmission shift lever
- Air conditioner
- Troubleshooting
Check and adjustment operator station group
- Air conditioner
Function and structure supplement
- Foreword
- Quick coupler
- Power boost circuit
- Short boom
- Limited slip differential


