Hitachi EX20UR-2 / EX30UR-2 / EX40UR-2 Excavator Workshop Manual
Repair guide for all EX20UR-2, EX30UR-2, and EX40UR-2 excavator configurations, covering superstructure, undercarriage, front attachment, and engine systems. PN KM-584E-00.
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Models Covered & Key Technical Specifications
Hitachi EX20UR-2 / EX30UR-2 / EX40UR-2 (KM-584E-00) -- Reference Documentation | Repository.
- Documented Displacement Data: 19 mm is the bolt diameter for removing the swing bearing inner race mounting bolts. This specification is crucial for proper disassembly procedures.
- Technical Running Clearance: 39 kg (86 lb) is the approximate weight of the canopy for the EX20UR-2 model, requiring careful handling during removal and installation.
- Universal Output Rating: 103 N·m (10.5 kgf-m, 76 lbf-ft) signifies the torque for tightening the swing bearing inner race mounting bolts, ensuring secure assembly.
- Core System Fill: 13.2 US gal (50 liter) is the capacity of the hydraulic oil container, requiring careful monitoring during maintenance procedures.
- Rated Control Valve: 49 N·m (5 kgf-m, 36 lbf-ft) is the specified torque for installing the control valve seat, ensuring optimal system performance.
- Prescribed Maintenance Standards: 42 kg (93 lb) represents the approximate weight of the travel device for the EX20UR-2 model, influencing lifting and handling procedures.
Professional Workshop Service Manual & Technical Specifications
Definitive Overhaul Wiring Manual: Hitachi Excavator Official EX20UR-2 / EX30UR-2 / EX40UR-2 Excavator Service Manual - Comprehensive Maintenance & Diagnostics Specification-Set
Model-Portfolio: EX20UR-2, EX30UR-2, EX40UR-2 // Subsystem-Focus: Excavator / Hydraulic Systems Logic // Year-Coverage: 1994.
| Metric | Technical-Path | Context |
|---|---|---|
| Manual ID | KM-584E-00 | Document Reference Number |
| Language | English | Primary Document Language |
| Page Count | 388 | Total Pages in Document |
Logically demanding repair procedures address the detailed workings of your Hitachi excavator. This manual offers comprehensive insights into its hydraulic and mechanical systems, ensuring you have the necessary information for effective maintenance and repair.
Testing requirements are specified for the various subsystems, including hydraulic and electrical components, to ensure optimal functionality and performance.
Clearance measurements are addressed for critical engine and transmission components, providing precise data for accurate assembly and diagnostics.
Special procedures are addressed for the removal and installation of major assemblies like the undercarriage, superstructure, and front attachments.
Verification procedures are included for critical systems to confirm correct operation after maintenance or repair.
Repair information is provided for the engine and accessories, covering key maintenance tasks and troubleshooting.
This manual documents torque specifications for critical engine and hydraulic components to ensure proper dynamic load distribution.
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