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Part of the New Holland Repair Manuals.
This is the factory workshop manual for the New Holland E385 and E385B crawler excavators, 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, relief and power-boost pressures and flow, the Mechatro chapter explains how the controller commands the hydraulics, 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 E385, E385B Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction and Index | 1-9 | 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 | 10-57 | General Shop Safety, Machine-Specific Hazards, Safety Plates and Their Locations, General Machine Data |
| Operational Principle: Specifications | 58-79 | Machine and Component Specification Tables, Main Pump and Motor Ratings, Relief and Power-Boost Pressures, Flows, Input Power |
| Operational Principle: Mechatro Control System | 80-173 | Mechatro Controller Operation, Pump and Valve Command Logic, Sensors and Control Maps |
| Operational Principle: Electrical System | 174-205 | Electrical System Architecture, Controllers, Harnesses and Sensors, Circuit Operation |
| Operational Principle: Component Operation | 206-359 | Hydraulic Pump Assembly, Pilot and Control Valves, Swing Device, Travel Device, Swivel Joint, Cylinders, Air Conditioning |
| Operational Performance Test | 360-401 | Performance Inspection Standard Table, Preparation for Tests, Measurement of Engine Speed and Hydraulic Pressure, Travel, Swing and Attachment Performance Tests, Mechatro Controller Output Adjustment |
| Troubleshooting by Error Codes | 402-473 | Error Code Index, The Controller and Sensor Faults Each Code Names, And the Step-By-Step Diagnostic Procedure Behind Every Code Including the Circuit to Measure and the Expected Value |
| Troubleshooting by Trouble | 474-519 | Symptom-Led Fault Finding for Hydraulic and Machine Complaints That Raise No Error Code |
| Repair Instructions: Upperstructure and Hydraulic Components | 520-859 | Disassembly and Assembly Precautions, Standard Tightening Torques, Upperstructure Removal, Pump Device, Control Valve, Swing and Travel Device Overhaul |
| Repair Instructions: Engine Mechanical | 860-989 | Engine Mechanical Disassembly and Assembly, Lubrication System Service |
| Engine Failure and Diagnosis Codes | 990-1061 | Failure Diagnosis for Each Engine Status, Engine Diagnosis Code Tables and Their Procedures |
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) and 25 L/min | |
| Swing motor | ||
| Displacement | 180.1 cm3 (11.0 in3) | |
| Swing brake | ||
| Braking torque | 860 to 1121 N.m (634 to 827 lbf ft) | |
| Travel motor | ||
| Displacement, high and low speed | 290.7 cm3/rev and 170.1 cm3/rev | |
| Travel device | ||
| Torque, high and low speed | 37600 N.m (27730 lbf ft) and 64260 N.m (47392 lbf ft) | |
New Holland E385, E385B Common Problems This Manual Covers
Digging power is down, or the machine stalls in hard material.
Check whether power boost is working before you condemn the pump. Main relief is set to 34.3 MPa at 135 L/min per section, and power boost lifts it to 37.8 MPa at 125 L/min. A machine that never sees boost pressure loses exactly the power you notice in hard digging, and the cause is usually the Mechatro command rather than the relief valve. Read the Mechatro chapter, then measure with the performance-test procedure.
Manual Section: Operational Performance TestThe machine will not travel straight, or is slow on one track.
Establish which speed range you are in before you measure. The travel motor is two-speed, displacing 290.7 cm3 per revolution in high and 170.1 cm3 in low, with 37600 N.m of torque in high and 64260 N.m in low, so the same fault feels different in each range. The performance-test part gives the travel measurement procedure, and the component operation and repair parts cover the travel device, the swivel joint and their overhaul.
Manual Section: Operational Performance TestSwing drifts on a slope, or the upperstructure will not hold position.
That is a brake question first. The swing brake makes 860 to 1121 N.m of braking torque, and the manual gives the measurement procedure for swing performance including the swing bearing. If the brake is within spec and the machine still drifts, move to the swing motor, which displaces 180.1 cm3, and its make-up and relief valves. The repair instructions cover the swing device overhaul with its tightening torques.
Manual Section: Repair Instructions: Upperstructure and Hydraulic ComponentsFrequently Asked Questions
Which excavators does this manual cover?
The E385 and the E385B, both crawler excavators, in one New Holland Kobelco workshop manual. It is written for an experienced technician and follows the Kobelco five-part structure, so diagnosis, performance testing and repair each live in their own part of the book.
What are the main pump specifications?
Maximum displacement is 140 cm3 per section, two sections. Rated pressure is 34.3 MPa (4980 psi) and maximum flow 294 L/min (78 gal/min) per section at 7.8 MPa. The pump absorbs up to 195 kW (265 PS). The main relief valve is set to 34.3 MPa (4970 psi) at 135 L/min per section, and power boost raises that to 37.8 MPa (5480 psi) at 125 L/min per section.
What are the swing and travel motor figures?
The swing motor displaces 180.1 cm3 (11.0 in3) and its brake makes 860 to 1121 N.m (634 to 827 lbf ft). The travel motor is a two-speed unit, displacing 290.7 cm3 per revolution in high speed and 170.1 cm3 per revolution in low, giving 37600 N.m (27730 lbf ft) of travel torque in high speed and 64260 N.m (47392 lbf ft) in low.
How is troubleshooting organised?
Two ways. Troubleshooting by error codes runs from page 402 to page 473 and works from what the machine reports. Troubleshooting by trouble runs from 474 to 519 and works from what the operator sees when no code is set. The engine has its own failure and diagnosis-code section at the back, from page 990.
How big is the manual and can I search it?
It is 1061 pages in English, a searchable and printable PDF. Search the text, print the pages you need for the bench, and keep the rest on a laptop in the workshop.
How quickly can I access this New Holland E385, E385B manual after buying?
Immediate download of the complete 1061-page searchable Repair Manual (75 MB). Access it on any device, from a laptop at your desk to a phone in the field.
Is this New Holland E385, E385B Repair Manual printable?
Yes, print as many copies as you want, and there are no restrictions. Many mechanics print the section they need and bring it to the shop floor.
