Part of the New Holland Repair Manuals.
This is the factory repair manual for the New Holland E385B Tier III crawler excavator, published by New Holland Kobelco Construction Machinery. It follows the Kobelco five-part structure: safety precautions, operational principle, operational performance test, troubleshooting and repair instructions. The specification tables give the main pump's displacement, its relief and power-boost pressures and its flow, and troubleshooting is split into a code-led part and a symptom-led part before the repair instructions take the machine apart.
What's Inside This New Holland E385B Tier III Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction and Index | 1-7 | How to Use the Manual, The T-X-Y-Z Page Numbering Scheme, The Five Parts the Workshop Manual Is Built From, And the Operation, Maintenance and Parts-Catalog References It Expects You to Have Alongside It |
| Safety Precautions and Generalities | 8-55 | General Shop Safety, Machine-Specific Hazards, Safety Plates and Their Locations, General Machine Data |
| Operational Principle: Specifications | 56-79 | Machine and Component Specification Tables, Main Pump and Motor Ratings, Relief and Power-Boost Pressures, Flows, Input Power |
| Operational Principle: Mechatro Control System | 80-177 | Mechatro Controller Operation, Pump and Valve Command Logic, Sensors and Control Maps |
| Operational Principle: Electrical System | 178-222 | Electrical System Architecture, Controllers, Harnesses and Sensors, Circuit Operation |
| Operational Principle: Component Operation | 223-382 | Hydraulic Pump Assembly, Pilot and Control Valves, Swing Device, Travel Device, Swivel Joint, Cylinders, Air Conditioning |
| Operational Performance Test | 383-426 | How to Use the Maintenance Standard, Preparation for Performance Tests, The Performance Inspection Standard Table, Test Procedures for Engine Speed and Hydraulic Pressure, Travel, Swing and Attachment Performance, And Mechatro Controller Output Adjustment |
| Troubleshooting by Error Codes | 427-498 | Error Code Index, The Controller and Sensor Faults Each Code Names, And the Step-By-Step Diagnostic Behind Every Code Including the Circuit to Measure and the Value to Expect |
| Troubleshooting by Trouble | 499-542 | Symptom-Led Hydraulic Fault Finding: All Controls Dead or Slow, Engine Down or Stalled, Movement at Lever Neutral, Poor Fine Operability, Slow Boom Up and Down, Slow Arm in and Independent Arm Out, Slow Bucket Digging and Dumping, Swing Dead, Noisy, Drifting on a Slope or at Stop |
| Repair Instructions: Upperstructure and Hydraulic Components | 543-819 | Disassembly and Assembly Precautions, Standard Tightening Torques, Upperstructure Removal, Pump Device, Control Valve, Swing and Travel Device Overhaul |
| Failure Diagnosis | 820-888 | Diagnosis by Machine State Rather Than by Code or Symptom: What the Machine Is Doing When It Fails, Which Systems CAN Produce That State, And the Order in Which to Eliminate Them |
| Repair Instructions: Engine Mechanical | 889-1026 | Engine Mechanical Disassembly and Assembly, Lubrication System Service |
| Engine Diagnosis Codes | 1027-1090 | Engine Diagnosis Code Tables and the Procedure Behind Each Code |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Main hydraulic pump | ||
| Maximum displacement capacity | 140 cm3 x 2 | |
| Rated pressure | 34.3 MPa (4980 psi) | |
| Maximum flow | 294 L/min (78 gal/min) x 2 at 7.8 MPa | |
| Maximum input power | 195 kW (265 PS) | |
| Main relief valve | ||
| Set pressure | 34.3 MPa (4970 psi) at 135 x 2 L/min | |
| Power boost | ||
| Pressure | 37.8 MPa (5480 psi) at 125 x 2 L/min | |
| Gear pump | ||
| Rated flow | 20 L/min (5.3 gal/min) | |
| This manual | ||
| Emissions specification | Tier III | |
