The provided document is an Operator's Manual for the Hitachi Material Handling Machine models ZX210LC-3, ZX250LC-3, ZX350LC-3, and ZX470LCH-3 Hydraulic Excavators. This manual specifically details the parts that differ from the standard Hitachi Hydraulic Excavator models.
Function Description:
This manual describes the operation and service procedures for the Hitachi Material Handling Machine, which is equipped with a long front attachment and an additional counterweight, making it suitable for scrap processing work. The machine is designed for material handling operations, including grasping and transporting objects with a grapple. It features various work modes and control patterns (ISO and Hitachi) for precise operation. The machine is not equipped with a lifting device and safety devices required for crane operations, and its use as a crane is prohibited.
Important Technical Specifications:
The manual provides detailed specifications for each model, including:
- Engine:
- ZX210LC-3: ISUZU AI-4HK1XYSA-02, 122 kW/2000 min⁻¹ (166 PS/2000 rpm)
- ZX250LC-3: ISUZU AH-4HK1XYSA-01, 132 kW/2000 min⁻¹ (180 PS/2000 rpm)
- ZX350LC-3: ISUZU AH-6HK1XYSA-01, 202 kW/1900 min⁻¹ (275 PS/1900 rpm)
- ZX470LCH-3: ISUZU AH-6WG1X, 260 kW/1800 min⁻¹ (353 PS/1800 rpm)
- Operating Weight (approximate, without attachment weight):
- ZX210LC-3: 23000 kg (Std. Cab), 23600 kg (High-Mount Cab 1.0 m), 24100 kg (High-Mount Cab 1.5 m & 2 m), 25000 kg (Lift Cab)
- ZX250LC-3: 26100 kg (Std. Cab & High-Mount Cab 1.0 m), 27200 kg (High-Mount Cab 1.5 m), 27400 kg (High-Mount Cab 2 m), 28100 kg (Lift Cab)
- ZX350LC-3: 35600 kg (Std. Cab), 36200 kg (High-Mount Cab 1.0 m), 36700 kg (High-Mount Cab 1.5 m), 36900 kg (High-Mount Cab 2 m), 37600 kg (Lift Cab)
- ZX470LCH-3: 50700 kg (Std. Cab & High-Mount Cab 1.0 m), 51800 kg (High-Mount Cab 1.5 m), 51950 kg (High-Mount Cab 2 m), 52700 kg (Lift Cab)
- Ground Pressure (approximate):
- ZX210LC-3: 48-55 MPa
- ZX250LC-3: 52-56 MPa
- ZX350LC-3: 67-71 MPa
- ZX470LCH-3: 73-90 MPa
- Boom Length:
- ZX210LC-3: 6500 mm
- ZX250LC-3: 7000 mm
- ZX350LC-3: 8500 mm
- ZX470LCH-3: 9500 mm
- Arm Length:
- ZX210LC-3: 4950 mm
- ZX250LC-3: 6000 mm
- ZX350LC-3: 6200 mm
- ZX470LCH-3: 7300 mm
- Swing Speed: 9.0 - 13.5 min⁻¹
- Travel Speed (fast/slow): 5.0/3.2 - 5.5/3.5 km/h
- Gradeability: 10 degrees
- Counterweight: Increased to allow for long front attachment installation. Specific weights are provided in the disassembly conditions tables.
- Cab Types: Standard Cab, High-Mount Cab (1.0 m, 1.5 m, 2.0 m), and Lift Cab, with varying dimensions for overall width, cab height, and operator's view.
Usage Features:
- Operator's Station: Equipped with a multi-function monitor panel, control levers (ISO and Hitachi patterns), attachment pedal, key switch, air conditioner panel, FM/AM radio, and various other switches.
- Work Mode Selection: Operators can select specific work modes from the monitor panel, including a digging mode, to optimize machine performance for different tasks.
- Attachment Pedal: Used for attachment swing operations, installed on either the right or left side.
- Object Handling: The machine is designed for object handling, and if equipped, must comply with EN 474-5, requiring a rated lifting-load table, lifting hook, overload alarm device, and hose rupture safety valve.
- Safety Features: Includes safety alert symbols, signal words (DANGER, WARNING, CAUTION, IMPORTANT, NOTE), seat belt, travel alarm, horn, FOPS cab (optional for falling stones/debris), and an overload alarm device.
- Break-in Operation: New machines require a break-in period of approximately 50 hours, operating in economy (E) mode at about 80% of maximum engine power, with daily greasing of front attachment joint pins.
Maintenance Features:
- Daily Inspections: Operators are instructed to perform daily inspections before starting work, checking engine, upperstructure, undercarriage, and front attachment for levels, leaks, damage, and loose parts.
- Periodic Replacement of Parts: Critical rubber hoses and other components must be periodically replaced at specified intervals (e.g., every 2 years for hydraulic system hoses) to ensure safe operation.
- Lubrication: Detailed lubrication procedures are provided for various points on the machine, including boom foot, boom cylinder rod, arm cylinder bottom, arm boss, arm cylinder rod, and arm. Greasing intervals are specified (e.g., every 8 hours for bearing grease).
- Hydraulic Oil: Instructions for checking hydraulic oil level and precautions for replacing front attachments or hoses to prevent air mixing into the pump.
- Fuel and Lubricants: Emphasizes the use of only recommended fuels and lubricants, specifically mentioning Hitachi parts and Super EX46 HN hydraulic oil.
- Long-Term Storage: Guidelines for preparing the machine for long-term storage, including cleaning, lubrication, battery removal/disconnection, coolant management, and proper attachment positioning.
- Safety During Maintenance: Strict safety precautions are outlined, such as never allowing anyone under the machine, wearing protective equipment, releasing hydraulic pressure, and using "Do Not Operate" tags.
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