Matching the right seal kit or idler to your Kobelco SK220 hydraulic excavator is what 630 pages of factory exploded views buy in this Kobelco SK220 parts catalog PDF (OEM ID S3LQ1046), covering four variants of the series. Superstructure groups fill most of the book: engine, radiator, swing motor, control valve and the upper suction, delivery, main and return lines, with harness wiring diagrams and hydraulic line layouts tracing each route. Undercarriage pages break out the slewing ring, idlers, adjuster, rollers and shoes; attachments separate the 6.02 m boom and 2.98 m arm from 8.5 m and 10.1 m long-range options. Note the main relief valve set pressure of 380 kgf/cm² at 40 L/min (F1) before you price a replacement. A made-up relief setting is how hoses split under load. Bookmarks and a live text layer take a part number search straight to the right callout, so your first order is the right one.
What's Inside This Parts Manual
| System | Pages | Key Topics |
|---|
| General Maintenance Items | 21-26 | Filter List, Nut & Sleeve Parts No, Paint Color |
| Superstructure | 27-194 | Upper Frame Assy, Counterweight Assy, Engine Assy, Engine Instal, Radiator Instal, Radiator Assy, Cleaner Assy |
| Undercarriage | 195-216 | Low Group, Slewing Ring Assy, Idler Assy, Crawler, Idler Adjust Assy, Roller Assy |
| Attachments | 217-244 | 6.02m Std Boom Assy, 6.02m Boom Hyd Lines, Light Instal, Std Arm Assy, 2.98m, Arm Hyd Lines |
| Tools and Spare Parts | 245-248 | Tool & Accessory, Element Kit |
| Optional Parts | 249-292 | Operators Controls, W Element, 8.5m Boom Assy, 8.5m Boom Hyd Lines |
| Name-Plate | 293-310 | Name Plate Instal |
| Parts Index | 311-332 | |
| Hydraulic Components | 333-418 | Motor (Swing, Propelling) |
| Mitsubishi Diesel Engine | 419-629 | Cylinder Head, Cylinder Block, Injection Pump, Governor, Turbocharger, Alternator & Regulator, Fuel Injection Pump General |
Quick Reference Specifications
| Specification | Value | Page |
|---|
| O-ring (G75 1A) | G75 1A | p. 202 |
| Main Relief Valve Set Pressure (F1) | 380 kgf/cm² at 40 L/min | p. 346 |
| Main Relief Valve Set Pressure (F2) | 370 kgf/cm² at 60 L/min | p. 346 |
| Set Pressure (F1) | 385 kgf/cm² at 30 L/min | p. 348 |
| Set Pressure (F2) | 400 kgf/cm² at 30 L/min | p. 348 |
| Set Pressure (F3) | 230 kgf/cm² at 30 L/min | p. 348 |
| Set Pressure (F4) | 315 kgf/cm² at 30 L/min | p. 348 |
| Set Pressure (F5) | 325 kgf/cm² at 30 L/min | p. 348 |
| Set Pressure (F6) | 300 kgf/cm² at 190 L/min | p. 348 |
