日立220

WHEEL LOADER Model Code : ZW220 Operating Weight : 17 010 - 17 560 kg Bucket Capacity : ISO Heaped : 2.7-3.4 m3 Max. Engine Output : 164 kW (220 HP) ZW series 2 3 Series Introducing the New-Generation Wheel Loaders: Top-Class Production with Amazing Mobility The new ZW Series wheel loaders are packed with numerous innovative technologies and mechanisms. Total control of engine and pump torque is an industry's first. Three work modes and three driving modes help enhance operating ease and yield high production. What's more, lots of advanced designs give power and speed for loading and travel. The ZW Series will set a new standard of productive, easy-to-operate wheel loaders. Productivity Three work modes to increase production and decrease fuel consumption Three driving modes for optimum speed shift Automatic transmission with load- sensing system High-torque engine and capacious torque converter Torque proportioning differential Limited slip differential (Optional) Smoother simultaneous operations with advanced hydraulic circuit Selectable clutch cutoff Timing Lift arm auto leveler (Optional) Ride control system (Optional) Page 4-7 Panoramic comfortable cab Bi-level auto air conditioner and pressurized cab Front & rear defrosters Low noise design Panoramic cab Enhanced upward visibility Good rear visibility Ergonomically positioned switches and controls Down-Shift Switch (DSS) and Up-Shift Switch (USS) Multi-functional joystick lever (Optional) Comfort-designed suspension seat Page 8-9 Enhanced Durability Robust differential gears Robust drive system Durable axles Variable displacement pumps Robust frame Hydraulically operated cooling fan with heat-sensing system Capacious hydraulic oil cooler Protected fuel tank Aluminum radiator and oil cooler LED indicators and instruments O-Ring Seal (ORS) joints and water- resistant electric connectors Page 10-11 Easy Maintenance Extended hydraulic oil replacement intervals Easy draining Conveniently located filters Easy-to-replace air conditioning filters HN bushings Strategically located Fuel supply port Large tool box Easy-to-read monitor Flat cab floor Hinged radiator cover Dirt-Less (DL) front frame Page 12-13 Safety Full fan guard Emergency steering system (Optional) Mis-operation protection ROPS / FOPS cab Highly reliable dual-line brake system Other safety features Page 14 Environment Common rail fuel injection system Cooled Exhaust Gas Recirculation (EGR) system Hitachi Silent (HS) fan Low noise engine A recyclable machine Page 15 Specifications Page 16-19 The new engine complies with the Emission Regulations U.S EPA Tier 3 and EU Stage III A The advanced low noise design complies with the coming EU noise regulation 2000 / 14 / EC, STAGE II Note : Pictures may or may not include standard and optional equipment that are specified individually by countries. :`Z[LT TVKL 7 � T V K L 5 � T V K L 3 � T V K L TVKL TVKL -YVU[ ZWLLK :SV^ :THSS 3PM[�HYT KPNNPUN�MVYJL 4LKP\T 4LKP\T 4LKP\T 4LKP\T 4LKP\T ;YHJ[PVU�MVYJL -YVU[ ZWLLK 3PM[�HYT KPNNPUN�MVYJL ;YHJ[PVU�MVYJL -YVU[ ZWLLK 3PM[�HYT KPNNPUN�MVYJL ;YHJ[PVU MVYJL 3HYNL -HZ[ 7�TVKL ��7V^LY�TVKL� ,UNPUL 6\[W\[ ,UNPUL :WLLK 5�TVKL ��5VYTHS�TVKL� 3�TVKL ��3PNO[�TVKL� Driving mode switch Load increase Speed increase Auto shiftdown when load increases Shiftup when speed increases Work mode select switch 4 5 Packed with Numerous Technological Advances for Amazing Mobility and Big Production The new ZW Series is packed with lots of technological advances: the TT* system, newly developed hydraulic system and transmission, well matching of operations, impressive mobility and big production with less fuel consumption, and much more. *Total Torque-control Automatic Transmission with Load- Sensing System Optimal speed shift timing is automatically selected in response to both travel speed and load. Three Work Modes to Increase Production and Decrease Fuel Consumption High-Torque Engine and Capacious Torque Converter Max. output : 164 kW (220 HP) Rated output : 139 kW (187 HP) Max. torque : 981 Nm (100 kgf m) The new engine yields big torque at a low speed in direct response to acceleration without need for full throttle. The capacious torque converter enables powerful travel under heavy load, such as climbing steep or long hills without losing speed. Torque Proportional Differential (Standard) The torque proportional differential adjusts driving forces to both wheels. When road resistances under both wheels are different, this feature prevents slippage of a wheel on softer ground, unlike conventional differentials. This feature enables the ZW series to get out of swamps or rough terrain easily. Limited Slip Differential (Optional) On snowy roads and rough terrain, the limited slip differential can work instead of the torque proportional differential. This delivers effective driving force to both wheels for enhanced grip and less slippage during travel. Smooth Speed Shift by Electronic Control Quick, smooth speed shift can automatically be done with less shocks by electronic control through helical gears. This allows speedy job-to-job travel with less soil spills in load-and- carry operation. Three work modes are selectable according to job needs and operator's preference. In each work mode, TT* system controls the total torque of the engine and pump for well matched penetration force and implement speed according to job needs. The three work modes can be optimally selected to suit materials to be handled for higher production. N mode : Starts with the second gear and makes gear shift at slow timing. Suitable for ordinary digging and loading operation such as V-shaped load and carry method. H mode : Makes gear shift at timing similar to the N mode, and automatically shifts down to the first gear according to loading conditions without need for shift down by DSS* or manual shifting. *Down-Shift Switch P mode: Heavy-duty excavation N mode: Loading L mode: Light-duty operation Three Driving Modes for Optimum Speed Shift The three driving modes can be selected according to job needs and operator's preference. L mode : Starts with the second gear, and makes gear shift at fast timing. Suitable for long-distance travel on level ground. Clutch cutoff position switch S mode N mode D mode Vibration without Ride Control Vibration by Ride Control by Using Front Weight 6 7 An Array of Elaborate Mechanisms for Impressive Mobility and Big Production Smoother Simultaneous Operations with Advanced Hydraulic Circuit With the new parallel/tandem circuits, the lift arm and bucket can be operated at the same time, unlike conventional machines. This can remarkably increase digging and loading efficiency for higher production. Clutch cutoff timing can be selected from three positions to suit various job conditions, including rapid operation on level ground, and surefooted operation on gradient. Improved Rise / Run Performance Float System The float system lets the lift arm follow up road irregularities by using its self- weight only, without using its hydraulic circuit. This system is useful in soil-spill collecting during loading, and snow removing. Bucket Auto Leveler The bucket can automatically be leveled parallel to the ground after rolling the bucket out. This can eliminate cumbersome bucket repositioning for efficient loading. Lift Arm Auto Leveler (Optional) The lift arm can automatically be raised and lowered to the preset level. By using the switches in the cab, high and low lift kickouts can be programmed. Arm rising while traveling for improved rise / run performance. On the new ZW Series, 10% higher rise/run performance can be expected, boosting loading efficiency and increasing productivity. S mode : The clutch is cutoff at fast timing by depressing the pedal for speedy loading on level ground. N mode : The clutch is cutoff by depressing the pedal midway for surefooted loading on slope. D mode : The clutch is cutoff by depressing the pedal fully for dumping into a hopper on slope. OFF : The clutch is disabled. The ride control reduces pitching and bouncing during traveling on rough terrain and snow road by automatic control of the implement. Shocks and vibration can be well suppressed for riding comfort. Lift Arm Kick-Out System The lift arm can automatically be raised up to the preset level. This function is convenient when loading onto a dump truck, and when operating at confined job sites with restricted working height. Sophisticated Mechanisms for Higher Job Efficiency Ride Control System (Optional) Selectable Clutch Cutoff Timing Operator-Friendly Designs for Higher Job Efficiency Restriction Valve The restriction valve can effectively reduce shocks when moving the lift arm up and down. The bucket does not have a shockless circuit to allow efficient mud removal. 7 Hot and cool box Large tray and drink holder Interior light interacting with cab door Seatback pocket AM / FM stereo radio Sun visor Rubber Silicone (Fluid) � � Ergonomically Positioned Switches and Controls Switches and controls are efficiently laid out in the right console for ease of operation. Down-Shift Switch (DSS) and Up-Shift Switch (USS) DSS and USS are designed for one-gear down-shift and up-shift at the touch of a button. Multi-Functional Joystick Lever (Optional) The multi-functional joystick lever is provided atop of the control lever for operating ease. Panoramic Cab The panoramic cab gives almost all- round visibility with the widened front glass window and pillar less cab rear corners. Front wheels are always in the operator's vision, enhancing safety and increasing loading efficiency. Enhanced Upward Visibility The front curved glass window gives good upward visibility, so the operator can directly see the movement of the bucket for safer loading. Good Rear Visibility The engine cover is low profile, and rounded for better rear visibility, so the operator can directly see the rear wheels and counterweight. Shock-Dampened Cab The cab rests on fluid-filled elastic mounts to absorb shocks and vibration, and reduce resonance. Low Noise Design The cab is well sealed, and the new low- noise engine is utilized to reduce sound, along with the following measures: •Hydraulically operated cooling fan with heat-sensing system •New Hitachi Silent (HS) fan •Sound-absorbing materials inside engine cover and cab •Clever arrangement of hydraulic oil tank and bulkhead Bi-Level Auto Air Conditioner and Pressurized Cab The bi-level air conditioner allows air conditioning at foot space and overhead simultaneously. Airflow volume and direction can automatically be adjusted according to the temperature setting. The pressurized cab shuts out dust and debris even in dusty environment. Operator-First Designs: Easy-to-Handle Controls for Operator Comfort Front / Rear Defrosters With the front and rear defrosters, airflow comes out from three front air outlets and two rear outlets to protect respective windows from fogging, keeping clear vision even in rain and cold weather. Adjustable Steering Column The steering wheel is tiltable, and telescopic to suit operator of all builds for comfortable operation. An Array of Standard Accessories Hat (Resin Cab Roof) The hollow hat is provided atop the cab to form an air space. This greatly helps reduce the temperature rise in the cab, and increases the cooling efficiency of the air conditioner. Comfort-Designed Suspension Seat The mechanical suspension seat well absorbs shocks and vibrations from the machine body to reduce operator's physical stresses for enhanced comfort. The air suspension seat is an option. LED 10 11 Transmission The transmission can effectively reduce the transmitting load. This helps reduce sound and extend service life, enhancing reliability. Robust Differential Gears Differential gears are thickened to increase rigidity. Robust Drive System The new OHC 4-valve per cylinders engine is teamed up with strengthened cylinder head, block, crank and journal pins, and a lattice frame. Hydraulically Operated Cooling Fan with Heat- Sensing System Fan speed can be adjusted depending on fluid temperature to effectively cool down coolant, hydraulic oil, transmission oil and torque converter oil. The result is extended component service life and reduction in fuel consumption. The fan is also separate from the engine for easy servicing. Capacious Hydraulic Oil Cooler The ample cooling capacity of the hydraulic oil cooler helps reduce oil temperature fluctuation, and extend service life of components. Enhanced Durability Durability is enhanced with a number of advanced mechanisms for long, continuous operation. Durable Axles Front and rear axles are improved for durability. The axle housing is thickened for tough operation at quarries. Improved Braking Ability The brake is a wet-type multi-plate brake, and housed in the axle. Variable Displacement Pumps New variable displacement pumps are exclusively developed and designed for Hitachi wheel loaders for tough earthmoving. LED Indicators and Instruments On the indicators, monitors and alarms, many LEDs are utilized for longer service life resulting in less failure, enhancing the reliability. O-Ring Seal (ORS) Joints and Water-Resistant Electric Connectors Numerous elaborate components are utilized for higher durability and reliability. The proven ORS joints and high-pressure hydraulic lines are utilized in the hydraulic system, and water- resistant wiring connectors in the electrical system. Aluminum Radiator and Oil Cooler The radiator and oil cooler are made of aluminum instead of conventional steel or copper for corrosion prevention. The box-section frame is thickened and strengthened to resist torsion and increase durability. Center pins are widely spaced for higher resistance to torsion. Robust Frame Dependable Drive System Protected Fuel Tank The large counterweight is arranged to protect the fuel tank from collisions with obstacles during operation. Grease Groove Oil HN Bushing Pore Oil oozed into clearance HN Bushing Pin 12 13 Conveniently Located Filters Dual fuel filters with sedimentary function and engine oil filter are strategically located for the convenient daily inspection and servicing from the ground. Strategically Located Fuel Supply Port The fuel supply port is located for convenient fuel supply from the ground. Large Tool Box A large tool box is provided at the top step of the ladder on the right side of the machine. The tool box can hold a grease gun and tool kit. Easy-to-Read Monitor With the easy-to-read monitor, the operator can see instructions for scheduled servicing and maintenance. Monitor Indication Items : Clock, service intervals, travel speed, mileage, hour meter Replacement Alerting : Engine oil / filter, fuel filter, hydraulic oil / filter, transmission oil / filter Flat Cab Floor The cab floor is stepless (flat) for ease of cleaning. Reversible Hydraulically Operated Cooling Fan The rotation of the hydraulically operated cooling fan with heat-sensing system can be reversed for easy removal of dirt from the radiator. The fan itself can swing open for easy cleaning. Dirt-Less (DL) Front Frame The DL front frame is shaped for easy removal of dirt, stones and snow. Reduced Running Costs Running and maintenance costs are reduced greatly with concentrated inspecting points and durable components. Extended Hydraulic Oil Replacement Intervals (Up from 2 000 to 4 000 Hours) Hitachi genuine hydraulic oil can quadruple hydraulic oil replacement intervals. A hydraulic oil drain hose is mounted standard. Extended Filter Replacement Intervals (250 to 500 Hours) Filter replacement intervals are extended by increasing engine oil capacity and using high-performance filters, slashing servicing costs and downtime. Easy Draining The engine oil drain port is located for the convenience of maintenance. No need for reaching under the machine. Easy-to-Replace Air Conditioning Filters The fresh air filter can easily be replaced from the cab, and circulation air filter also replaced by detaching the drink holder. HN Bushings The HN bushing containing high-viscosity oil is provided at each joint to reduce grease consumption, extend lubrication intervals (100 to 500 hours), and increase durability. The HN bushing, another example of innovative technology developed by Hitachi, features long life and high durability. High-viscosity oil is vacuum impregnated in sintered high-hardness metal. During operation oil oozes from the pores of the bushing into the clearance between pins and bushing providing lubrication. Fuel Filter Fuel Pump Common Rail Pressure Sensor Common Rail Injector Control Unit Fuel Tank EGR Control Valve Intake Cyrinder Head Exhaust EGR Cooler Coolant Control Unit 14 15 Safety-First Design Achieving a High-Level of Safety in the Working Environment with an Array of Advanced Mechanisms Mis-Operation Protection: Starting Engine : The engine will start only when the Forward / Reverse lever in neutral. Starting : The transmission is disabled when the parking switch is in the ON position, even if selecting Forward or Reverse. Leaving from Operator Seat : Control levers and Forward / Reverse lever are locked to prevent accidental operation. Stopping Engine : The spring-set/ hydraulic-released parking brake is automatically applied even if failing to apply it. Other Safety Features Retractable Seat Belt Inclined Ladder Full Fan Guard The cooling fan is enclosed by a full guard (metal net) to protect service technicians from injury during servicing and maintenance. Emergency Steering System (Optional) The emergency electric pump delivers the necessary oil pressure for power steering even in the case of an emergency. This allows normal steering at all times even if the engine fails. ROPS / FOPS Cab The ROPS / FOPS cab is provided to protect the operator from injury in an accident. ROPS : Roll-Over Protective Structure : ISO3471 FOPS : Falling Object Protective Structure : ISO3449 Highly Reliable Dual-Line Brake System The dual-line hydraulic brake system is utilized: even if one line fails, the other can work for braking. The brake is an enclosed wet multi-plate type for reliable braking. Environmentally Friendly Design Common Rail Type Fuel Injection System In this fuel injection system complying with the Emission Regulations, one fuel pump runs to generate high pressure for distributing fuel to each injector per cylinder through a common rail. By electronic control, fuel injection volume and timing can be precisely regulated for efficient combustion and higher horsepower. This also reduces PM* (diesel plume), fuel consumption and vibration. *Particulate matter Important: The use of fuels other than deisel fuel (JIS K-2204) (ASTM2-D) is prohibited. Otherwise, the engine may be damaged. Cooled Exhaust Gas Recirculation (EGR) System The cooled EGR system lets part of exhaust gasses mix with intake air for re-combustion to reduce oxygen concentration in the air in the combustion chamber. This design lowers combustion temperature in the cylinder, reducing fuel consumption and NOx while yielding more horsepower. This system also cools down exhaust gas to prevent incomplete combustion and PM* emission. A Recyclable Machine Approximately �5% of the ZW Series can be recycled. The res