Part of the Hitachi Repair Manuals.
Engine, swing, travel, front attachment and electrical systems are traced end to end in this 362-page Hitachi Zaxis 160LC, 180LC and 180LCN technical manual PDF (OEM ID TT1F1E-02), the troubleshooting and performance-test volume for these excavators. Roughly half the book is diagnosis, split three ways: fault codes read through Dr. EX, operational status symptoms, and monitor faults, with sensor voltages and adjustment data to check your readings against. Hydraulic circuit schematics and electrical wiring diagrams close out the volume, showing pilot and main circuit routing plus harness layouts. On the 160LC, main relief for boom, arm and bucket sets at 34.3 MPa (4980 psi), and neutral pump delivery should sit at 1.4 MPa (200 psi) before you condemn a pump. One wrong guess on a travel motor means two teardowns. Bookmarked, text-searchable and bought once, this copy stays yours for as long as you run the machine.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Technical Manual | 1-2 | Operational Performance Test, Troubleshooting, Operational Principle, Workshop Manual |
| Introduction | 3-6 | Manual Composition, Additional References, Page Numbering, Safety Alert Symbols, Units of Measurement |
| Safety | 7-38 | Emergency Procedures, Protective Clothing, Machine Inspection, Safe Maintenance, Fire Prevention, High-Pressure Fluid Safety |
| Operational Performance Test | 39-144 | Operational Performance Test Introduction, Operational Performance Test Standard, Engine Test, Excavator Test, Component Test, Adjustment |
| General Troubleshooting | 145-172 | Diagnosing Procedure, Dr. EX Operation, Fault Code List, Adjustment Data List |
| Component Layout | 173-190 | Main Component Layout, Electrical Component Layout, Control Valve Components, Signal Control Valve Port Location |
| Troubleshooting a (Fault Code Diagnosis) | 191-200 | Troubleshooting Procedure, Fault Code List, Sensor Voltage, EC Sensor, Engine Control Dial |
| Troubleshooting B (Operational Status Diagnosis) | 201-257 | Engine System Troubleshooting, Actuator System Troubleshooting, Front Attachment System, Swing System, Travel System |
| Troubleshooting C (Monitor Diagnosis) | 258-316 | Front Attachment System, Swing System, Air Conditioner Malfunction, Coolant Temperature Gauge, Fuel Gauge, Hour Meter |
| Electrical System Inspection | 317-334 | Inspection Precautions, Fuse Inspection, Fusible Link Inspection, Battery Voltage Check, Continuity Check, Test Harness |
| ICX (Information Controller) | 335-353 | Daily Report Data, Frequency Distribution, Cumulative Operation Hours, Alarm List, Satellite Communication System |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Main Relief Valve Set Pressure (Boom, Arm, and Bucket) | 34.3 +2.0/-0 MPa (350 +20/-0 kgf/cm², 4980 +284/-0 psi) | p. 46 |
| Main Pump Delivery Pressure (In neutral) | 1.4 ±0.5 MPa (14 ±5 kgf/cm², 200 ±71 psi) | p. 45 |
| Main pump delivery pressure | 50 ± 5 °C (122 ± 9 °F) | p. 111 |
| Rocker arm adjusting screw lock nut torque | 25.5±4.9 N⋅m (2.6±0.5 kgf⋅m, 18.8±3.6 lbf⋅ft) | p. 73 |
| Delivery valve holder torque | 39 to 44 N⋅m (4 to 4.5 kgf⋅m, 28.9 to 32.6 lbf⋅ft) | p. 76 |
| Main relief valve set pressure adjustment torque | 19.5 N⋅m (2 kgf⋅m, 14.5 lbf⋅ft) | p. 114 |
| Main pump casing air bleed plug torque | 19 N⋅m (1.3 kgf⋅m, 9.4 lbf⋅ft) | p. 122 |
| Main relief valve set pressure adjustment lock nut torque | 19.5 N⋅m (2 kgf⋅m, 14.5 lbf⋅ft) | p. 114 |
| Maximum flow rate adjustment screw torque | 40 N⋅m (4 kgf⋅m, 29.5 lbf⋅ft) | p. 127 |
| Pilot pressure characteristics adjustment screw torque | 10 N⋅m (1 kgf⋅m, 7.2 lbf⋅ft) | p. 127 |
| Engine Compression Pressure | 3.04 MPa (31 kgf/cm², 440 psi) | p. 43 |
| Valve Clearance (IN, EX) | 0.4 mm | p. 73 |
