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Wrenching on a Kobelco SK15SR or SK20SR? This 771-page Kobelco SK15SR, SK20SR Shop Manual PDF (OEM #S5PM0002E) covers the 1997-1999 Hydraulic Excavator line front to back. Inside: full electric system circuit diagrams with harness connections, hydraulic pump and control valve teardowns, slewing and travel motor rebuilds, plus a trouble diagnostic list spanning engine, pump, travel, slewing, and attachment groups. You also get working standards, lifting diagrams, and a complete engine service section with step-by-step disassembly and reassembly. Torque the slewing bearing capscrews to 85 ± 9 ft-lbs and fill the hydraulic system with 45 L (12 gal) of oil. Each machine even gets its own pump seal torque (34 vs 48 ft-lbs). Your excavator is down and the forums are guessing. This bookmarked PDF opens on any device; grab your tablet, walk to the machine, and start wrenching.
What's Inside This Kobelco SK15SR, SK20SR Manual
| System | Pages | Key Topics |
|---|---|---|
| Specification | 7-30 | Name of Components, General Dimensions, Specifications and Performance |
| Location and Weight of Components | 31-39 | Location of Components, Weight of Components, Weight of Attachments |
| Maintenance Standards and Test Procedures | 40-51 | How to Use the Maintenance Standard, Standards for Judging Performance, Test Procedures |
| Working Standards | 52-60 | Name of Components, Specifications and Performance, Type of Shoes, Type of Buckets, Working Ranges of Attachments, Lifting Diagram, Engine Specifications, Engine Performance Curves |
| Preventive Maintenance | 61-188 | |
| Operator Control and Engine Control | 189-200 | Operating Lever, Switch Functions, Monitor Panel, Engine Control, Deceleration Control |
| Major Electrical Equipment | 201-213 | Electrical Equipment List, Battery, Alternator, Glow Plug, Sensors, Switches |
| Electric System | 214-231 | Circuit Diagrams, Harness Connections, Components Arrangement, Boom Work Light |
| Troubleshooting | 232-246 | Trouble Diagnostic List, Engine Group, Pump Group, Travel System, Slewing System, Attachment System |
| Components: Hydraulic Pump and Control Valve | 247-332 | Hydraulic Pump Construction, Control Valve Operation, Relief Valve Maintenance, Troubleshooting |
| Components: Pilot Valve and Solenoid Valve | 333-355 | Pilot Valve Construction, Pilot Valve Maintenance, 2-Function Solenoid Valve, Relief Valve |
| Components: Slewing Motor, Travel Motor, and Hydraulic Cylinder | 356-471 | Slewing Motor Unit, Travel Motor Unit, Hydraulic Cylinder Construction, Cylinder Maintenance |
| Mounting Breaker/Nibbler and Engine Service Manual | 472-771 | Breaker/Nibbler Modification, Hydraulic Circuit, Engine Specifications, Engine Maintenance, Disassembly and Reassembly |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Hydraulic oil capacity | 45 L (12 gal) | p. 34 |
| SK15SR pump oil seal installation torque | 4.7±0.5kgf·m (34±4ft·lbs) | p. 101 |
| SK20SR pump oil seal installation torque | 6.6±0.6kgf·m (48±4ft·lbs) | p. 101 |
| Tightening torque of slewing bearing capscrews | 11.7 ± 1.2 kgf·m (85 ± 9 ft·lbs) | p. 137 |
| Tightening torque of sprocket mounting capscrews | 5.6 ± 0.5 kgf·m (41 ± 4 ft·lbs) | p. 133 |
| Tightening torque of swivel joint mounting capscrews | 3.4 ± 0.13 kgf·m (26 ± 1 ft·lbs) | p. 136 |
| Tightening torque of swivel joint lock plate | 11.7 ± 1.2 kgf·m (85 ± 9 ft·lbs) | p. 136 |
| Pressure plate (14) thickness | 3.930mm | p. 261 |
| Hydraulic oil application amount | 2-3cc | p. 257 |
| Return filter replacement interval (1st) | 25h | p. 507 |
| Return filter replacement interval (2nd) | 100h | p. 507 |
| Engine Oil Volume (Max/Effective) | 2.4 L / 1.0 L | p. 29 |
