Within the hour you could have a T-adapter clipped into a solenoid connector and this 326-page Komatsu PC160LC-7 shop manual PDF (SEBM028601) open to the matching E-mode error code for your hydraulic excavator. Electrical troubleshooting fills nearly half the book, pairing each error code with circuit diagrams, connector pin tables, and sensor and solenoid checks that finish on a measured value. Hydraulic schematics and H-mode charts trace slow work equipment, weak swing, and travel faults back to the pumps and solenoids, and the testing section supplies standard value tables for engine and chassis parts. Expect 20 to 60 Ω across a healthy travel speed shifting solenoid, and torque the air bleeders to 27.5 to 35.3 Nm. An intermittent sensor fault can burn a whole shift. Bookmarked, text-searchable pages let you confirm the failed component before you order, so the part on the invoice is the right one the first time.
What's Inside This Manual
| System | Pages | Key Topics |
|---|
| General | 1 | |
| Structure, Function and Maintenance Standard | 2-6 | |
| Testing and Adjusting | 7-92 | Standard Value Table for Engine Related Parts, Standard Value Table for Chassis Related Parts, Tools for Testing, Adjusting and Troubleshooting |
| Troubleshooting Fundamentals | 93-104 | Troubleshooting Sequence, Maintenance Precautions, Checks Before Troubleshooting, Connector Location Charts |
| Troubleshooting Classification and Steps | 105-152 | Troubleshooting Steps, Failure-Looking Phenomena, Connector Pin Connection Tables, T-Adapter Tables |
| Troubleshooting Error Code | 153-243 | Error Codes, Electrical System Troubleshooting, Circuit Diagrams, Sensor and Solenoid Diagnostics |
| Before Conducting E-Mode Troubleshooting | 244-298 | |
| Troubleshooting Hydraulic and Mechanical System (H-Mode) | 299-326 | Hydraulic System Charts, Work Equipment Speed and Power, Swing System Troubleshooting, Travel System Troubleshooting |
Quick Reference Specifications
| Specification | Value | Page |
|---|
| Fan belt tension | 8 mm | p. 8 |
| Air conditioner compressor belt tension | 5 – 8 mm | p. 8 |
| Travel speed shifting solenoid valve functioning condition (front or rear pump pressure) | 29.4 MPa {300 kg/cm2} or 15.3 MPa {156 kg/cm2} | p. 48 |
| Air bleeder torque | 27.5 – 35.3 Nm {2.8 – 3.6 kgm} | p. 58 |
| Travel speed shifting solenoid resistance value | 20 – 60 Ω | p. 184 |
| Air cleaner clogging switch resistance (normal condition) | Below 1 Ω | p. 235 |
| Monitor panel voltage (normal condition) | Below 1 V | p. 235 |
| Air conditioner unit voltage | 20 – 30 V | p. 294 |
| Engine High Idling Speed | 2,350 ± 70 rpm | p. 8 |
| Engine Low Idling Speed | 1,030 ± 50 rpm | p. 8 |
| Intake Valve Clearance | 0.25 mm | p. 8 |
| Exhaust Valve Clearance | 0.51 mm | p. 8 |
