IHI Model 55N Mini Excavator Parts Catalog (327 P.)
Complete parts reference for IHI 55N mini excavator including lower machine, turntable, hydraulic components, and controls. Factory-accurate specifications with part numbers for hydraulic motors, cylinders, valves, and attachment systems.
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Models Covered & Key Technical Specifications
IHI Model 55N — Mini Excavator Manufacturer Technical Reference | Model 55N Series Repository.
- Calibrated System Volume: Hydraulic tank capacity reaches 90 L (23.8 US gal) for standard operation Architecture.
- Measured Power Output: YANMAR engine delivers 20.9 kW (28 hp) at maximum rated horsepower Framework.
- Primary Torque Specification: Traction motor assembly rated at 113 N·m (83 lb-ft) for blade fastening requirement Specifications.
- Advanced Boom Cylinder Data: Boom cylinder assembly utilizes 50 mm bore diameter for structural load capacity Limits.
- Core Bucket Capacity Range: Hoe bucket options span 0.11 m³ to 0.19 m³ (0.14 to 0.25 cubic yards) Standards.
- Standard Operating Pressure: Hydraulic system relief valve setting established at 9860–10825 kPa (1430–1570 psi) Envelope.
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Definitive Technical Installation Manual: Mini Excavator Official IHI Model 55N Excavator Parts Catalog - Digital Service & Maintenance Reference Procedure-Library
Model-Portfolio: IHI Model 55N // Technical-Benchmarks: Hydraulic system architecture and component specifications // Model-Portfolio: Comprehensive parts identification and assembly documentation.
| Component System | Primary Function | Documentation Scope |
|---|---|---|
| Lower Machine & Crawler | Ground engagement and track system | Complete shoe assemblies, idlers, rollers, adjustment mechanisms |
| Hydraulic Power Distribution | System pressure and flow control | Pump assemblies, motor units, cylinder configurations, valve blocks |
| Operating Control Interface | Machine operation input devices | Traction levers, control levers, engine governors, remote valve systems |
Technical chapters are organized around the lower machine foundation and turntable rotation systems, integrating swing drive devices with hydraulic piping networks, documenting traction and swing motor assemblies, specifying cylinder configurations for boom, arm, bucket, and blade functions, and addressing hydraulic instrument valve assemblies and remote control valve specifications.
The document is divided into structured assembly sections, each containing detailed component diagrams and parts listings with cross-reference capabilities. Diagnostic reference materials address the traction motor assembly alongside the swing motor assembly. Hydraulic system procedures are documented for return and suction piping, pump discharge configurations, boom swing piping, and control piping variants. Engine and accessory information is detailed for fuel tank and piping arrangements. Operating control documentation spans traction levers, control levers in standard and short-lever configurations, blade and boom swing control assemblies, and engine throttle control systems. Boom holding piping and valve assemblies are specified for auxiliary functions. Complete name plate specifications are provided across multiple language variants including English, Dutch, French, Italian, German, and Danish configurations.
Structured nomenclature identifies component function throughout the reference documentation. Installation and assembly procedures are conveyed through parts diagrams and component identification systems.
The manual documents torque specifications for fastener assemblies to ensure proper connection security.
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Model-Portfolio: IHI Model 55N mini excavator parts reference // Technical-Benchmarks: Complete hydraulic system and component documentation with multi-language support // Model-Portfolio: 327-page comprehensive parts catalog with detailed assembly cross-references, section index, and parts number identification system.
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