This is Kobelco Construction Machinery America's own service manual for the 140SRLC-3 Tier 4 excavator. It is Part Number S5YY0024E02, 1st Edition, issued September 2012. It covers serial YH07-09001 and up. Mitsubishi's D04EG-TAA engine manual, Pub. No. 99616-28100, is bound in at the back.
A slow boom or a lazy swing is a bad morning when the crew is standing around. This book takes you from pilot pressure to main relief to the mechatro controller. Every step has a factory number to check against, so you stop swapping parts on a hunch.
Keep it on a tablet in the service truck or a phone in the cab. The torque charts, the 10-sheet electric diagram and the error code tables go wherever the machine is parked.
What's Inside This Kobelco 140SRLC-3 Manual
| System | Pages | Key Topics |
|---|---|---|
| Cover, Index and Outline | 1-17 | Book Index, General Precautions for Making Repairs, Safety When Disassembling, Hydraulic and Electrical Equipment Handling, Weld Repair |
| Specifications and Attachment Dimensions | 18-47 | Name of Components, General Dimensions, Weight of Components, Transportation, Speed and Climbing Capability, Crawler and Bucket Types, Engine Specification (Mitsubishi D04EG-TAA), Boom/Arm/Bucket Dimensions and Maintenance Standards |
| Tools | 48-69 | Tightening Torques for Capscrews and Nuts, Hose and Fitting Torques, Plugs, Special Tools, Screw Locking Compound, Lifting Jigs, Track Spring Set Jig |
| Standard Maintenance Time Table | 70-83 | Working Conditions, Standard Working Time Table by Group, Work Codes |
| Maintenance Standard and Test Procedure | 84-115 | Performance Inspection Standard Table, Engine Speed and Hydraulic Pressure Measurement, Travel/Swing/Attachment Performance, Swing Bearing, Mechatro Controller, Exhaust Gas Post-Cleaning Device |
| Mechatro Control System | 116-191 | Unload Valve Control, Positive Control and P-Q Control, Boom Up Conflux, Arm in Recirculation and Conflux, Arm-In Anti-Cavitation, Mechatro Controller |
| Hydraulic System | 192-223 | Standard Hydraulic Circuit, N&B and Boom/Arm Safety Options, Neutral, Travel, Bucket, Boom, Swing, Arm and Combined Circuits, Pressure |
| Electric System | 224-283 | Electric Circuit Diagram (10 Sheets), Electrical Equipment, Harness List, Instrument Panel, Controller Install |
| Components System: Hydraulic Components | 284-379 | Hydraulic Pump and Regulator, Control Valve, Pilot Valves, Swing Motor Unit, Travel Motor, Swivel Joint, Cylinders |
| Components System: Electrical Equipment | 380-397 | Electrical Equipment List, Electrical Equipment Specifications |
| Air-Conditioner System | 398-445 | HVAC Basic System, Components, Piping, Function, Disassembly, Charging Refrigerant, Electric Circuit, Troubleshooting |
| Disassembling and Assembling: Attachments | 446-487 | Tightening Torque Indication, Attachment Assy, Bucket, Arm and Boom Removal and Installation, Disassembling and Assembling |
| Upper Slewing Structure: Removing and Installing | 488-550 | Operator Seat, Battery, Guards, Counterweight, Fuel Tank, Hydraulic Tank, Pump, Air Cleaner, Muffler, Radiator and Oil Cooler, Engine, Control Valve, Pilot Valves, Swing Motor, Swivel Joint, Upper Frame |
| Upper Slewing Structure: Disassembling and Assembling | 551-671 | Hydraulic Pump and Regulator, Control Valve, Pilot Valves (ATT and Travel), Swing Motor Unit, Swivel Joint |
| Travel System: Removing and Installing | 672-714 | Crawler, Upper and Lower Rollers, Front Idler and Adjuster, Sprocket, Travel Motor, Swing Bearing |
| Travel System: Travel Motor Unit | 715-775 | Travel Motor Construction, Tools and Jigs, Disassembly, Assembly, Maintenance Standard |
| Troubleshooting by Error Codes | 776-849 | Judgment at Site, Classification of Failure, Mechatro Controller Fuse, Error Code List and Per-Code Tables |
| Troubleshooting by Trouble | 850-895 | Hydraulic System Symptoms, Electric System Wiring Checks and Troubles, Engine Related Troubleshooting Matrix |
| Engine Manual (Mitsubishi D04EG-TAA): Preface and General | 896-921 | Engine Serial Number Plates, Engine Manual Cover and Foreword, External View, Outline of Systems |
| Engine: Service Data, Service Tools and Overhaul Instructions | 922-945 | Maintenance Service Data, Tightening Torques, Service Tools, Overhaul Instructions |
| Engine: Basic Engine Disassembly, Inspection and Assembly | 946-1015 | Disassembly, Inspection and Repair, Assembly of Basic Engine |
| Engine: Fuel, Lubrication, Cooling, Inlet/Exhaust, Electrical and Adjustment | 1016-1101 | Fuel System, Lubrication System, Cooling System, Inlet and Exhaust Systems, Electrical System, Adjustment, Break-In, Performance Test, Error Code Table |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Engine | MITSUBISHI D04EG-TAA | p. 31 |
| Total displacement | 3,331 cc (203.27 cu-in) | p. 31 |
| Rated output with fan | 74 kW (101 PS) at 2,000 min-1 | p. 31 |
| Engine oil quantity (total) | 11.5 L (2.61 gal) | p. 31 |
| Firing order | 1 - 3 - 4 - 2 | p. 31 |
| Fully equipped weight | 14,100 kg (31,090 lbs) | p. 27 |
| Travel speed (1-speed/2-speed) | 3.4 / 5.6 km/h (2.1 / 3.5 mile/h) | p. 27 |
| Swing speed | 11.0 min-1 {rpm} | p. 27 |
| H mode Hi idle / Lo idle | 2000 +30/-30 / 1100 +30/-30 min-1 | p. 87 |
| Pilot primary pressure | 5.0 (725) MPa (psi) | p. 87 |
| Main relief valve pressure (ATT) | 34.3 (4970) MPa (psi) | p. 87 |
| Over load relief pressure (boom, arm, bucket) | 37.8 (5480) MPa (psi) | p. 87 |
