The Kobelco SK260-9, SK295-9 service manual PDF fits both hydraulic excavators in this pair: 962 pages under OEM ID 84531464, running from the Mechatro controller to the front idler and track adjuster. Operational principle fills more than a third of the book, where hydraulic schematics trace oil from the main pump through the control valve and pilot circuit, and wiring diagrams map the electrical system. Troubleshooting runs by error code and by symptom, and the repair chapters walk you through swing bearing, travel device, swivel joint and cylinder teardown, ending with front attachment maintenance standards. Set your test gauge against a main pump rated pressure of 34.3 MPa (4980 psi), and on the SK260-9 expect 655 N·m (483 lbf·ft) of swing motor braking torque. Out on site, there is often nobody to call. Bookmarks land you on the right chapter fast, and the text layer finds any component name in seconds.
What's Inside This Kobelco SK260-9, SK295-9 Manual
| System | Pages | Key Topics |
|---|---|---|
| General Safety Information | 7-54 | Safety Information, Safety Precautions, Safety Decals |
| Operational Principle | 55-414 | System (Mechatro Control System, Hydraulic System, Electrical System) |
| Operational Performance Test | 415-452 | Introduction, Standard Performances, Test Procedures, Mechatro Controller |
| Troubleshooting | 453-572 | Troubleshooting by Error Codes, Troubleshooting by Symptom |
| General Information | 573-576 | Disassembly and Assembly Precautions, Tightening Torque |
| Upperstructure | 577-762 | Upperstructure Removal, Operator Seat, Cab, Battery, Guard, Under Cover, DEF/AdBlue Tank, Fuel Tank |
| Undercarriage | 763-920 | Swing Bearing, Travel Device, Swivel Joint, Track Adjuster, Front Idler, Upper and Lower Roller, Tracks |
| Front Attachment | 921-962 | Front Attachment Removal, Bucket Replacement, Cylinder Removal and Installation, Cylinder Assembly and Disassembly, Maintenance Standards |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Max. input torque (at 1400 rpm) - Main pump | 618 N·m (456 lbf·ft) | p. 63 |
| Max. input torque (at 1400 rpm) - Gear pump for pilot | 14.7 N·m (10.8 lbf·ft) | p. 63 |
| Max. displacement capacity - Main pump | 117 (7.13) x 2 cm³ (in³) | p. 63 |
| Rated pressure - Main pump | 34.3 MPa (4980 psi) | p. 63 |
| Max. displacement capacity - Gear pump for pilot | 10 (0.6) cm³ (in³) | p. 63 |
| Rated pressure - Gear pump for pilot | 5.0 MPa (725 psi) | p. 63 |
| Proportional solenoid valve tightening torque | 73.5 N·m (54.2 lbf·ft) | p. 235 |
| Solenoid valve (KDRDE-5K) tightening torque | 7.4 N·m (5.5 lbf·ft) | p. 67 |
| Proportional solenoid valve pressure range | 0~2.7MPa (392 psi) | p. 533 |
| Solenoid directional valve (8 spool) assy rated pressure | 5.0 MPa (725 psi) | p. 233 |
| P1/P2 pump proportional valve secondary pressure (control lever neutral) | 0.5 to 1.0 MPa | p. 533 |
| P1/P2 pump proportional valve secondary pressure (boom up full lever) | 2.1 to 3.0 MPa | p. 536 |
Kobelco SK260-9, SK295-9 Common Problems This Manual Covers
Kobelco SK260-9 and SK295-9 front attachment, swing and travel controls not working with safety lock lever pushed down
Measure the safety lock lever solenoid valve output pressure following page 532. With the lever pushed down you need 4 MPa or more; with it pushed up it must read 0 MPa. If the solenoid output is good, check P1/P2 pump proportional valve secondary pressure at lever neutral against 0.5 to 1.0 MPa on page 533.
Manual Section: Troubleshooting by Symptom (Hydraulic) p. 532Boom at full lever stroke raising or lowering slowly with weak cylinder force
Measure P1 and P2 pump proportional valve secondary pressure with the boom up lever held at full stroke following page 536. Both readings should fall between 2.1 and 3.0 MPa. Then run boom down at full lever and check P1 secondary pressure against 1.9 to 2.5 MPa on page 537 before you condemn the main pump.
Manual Section: Troubleshooting by Symptom (Hydraulic) p. 536Arm in or arm out at full lever stroke moving slowly with weak digging force
Measure P1 and P2 pump proportional valve secondary pressure with arm in held at full lever following page 540; you need 2.6 MPa or more. Repeat at full arm out and verify 1.7 to 2.9 MPa on page 542. Record both readings before you start pulling hoses or touching the main pump.
Manual Section: Troubleshooting by Symptom (Hydraulic) p. 540Bucket cylinder digging at full lever stroke slow with weak curl force
Measure pump proportional valve secondary pressure with bucket digging held at full lever following page 544. P1 should read 2.3 MPa or more and P2 should sit between 1.9 and 2.5 MPa. If one side reads low, chase that side's proportional valve circuit first before you tear into the bucket cylinder or the main pump.
Manual Section: Troubleshooting by Symptom (Hydraulic) p. 544Upperstructure at full swing lever stroke turning slowly or not swinging at all
Check swing remote control pressure following page 547; it needs 3.0 MPa or more. Then test the swing parking brake solenoid valve A2 port: 0 MPa in neutral, 4 MPa or more in operation. Verify P2 unload proportional valve secondary at 0.6 to 1.0 MPa and P2 pump proportional valve at 2.7 MPa or more.
Manual Section: Troubleshooting by Symptom (Hydraulic) p. 547Right or left travel motor at full lever stroke slow or lacking pulling power
Measure travel remote control pressure following page 551; right and left both need 2.1 MPa or more. Check P1/P2 unload proportional valve secondary pressure against 0.6 to 1.0 MPa, then verify P1 pump proportional valve (travel right) and P2 pump proportional valve (travel left) read 2.7 MPa or more before pulling the travel device.
Manual Section: Troubleshooting by Symptom (Hydraulic) p. 551Frequently Asked Questions
What is the tightening torque for the M8x20 capscrews on the Kobelco SK260-9/SK295-9 operator seat?
The M8x20 capscrews (3) that hold the Kobelco SK260-9/SK295-9 operator seat are tightened to 23 Nm (17 lbf·ft). p. 594
What is the tightening torque for the M12x30 sems bolts on the Kobelco SK260-9/SK295-9 under cover?
The tightening torque for the M12x30 sems bolts (11) used for the under cover is 80 Nm (59 lbf·ft). p. 604
What is the tightening torque for the radiator attaching bolts on the Kobelco SK260-9/SK295-9?
The four M20x45 sems bolts (30) that attach the radiator get Loctite #262 and are tightened to 500 Nm (369 lbf·ft). p. 620
What is the tightening torque for the M16x55 travel motor capscrews on the Kobelco SK260-9?
On the SK260-9, the M16 travel motor capscrews (3) are tightened to 279 ± 28 Nm (206 ± 20.7 lbf·ft) with Loctite #262 applied. p. 770
What is the service limit for upper roller shaft-to-bushing clearance on the Kobelco SK260-9?
On the Kobelco SK260-9, the upper roller shaft-to-bushing clearance has a service limit of 0.8 mm (0.0315 in); the shaft is Ø46 mm (1.811 in). p. 901
What exactly do I receive with this Kobelco SK260-9 Service Manual?
This is a 962-page searchable PDF ready for immediate download. Works on any device, so pull it up on your phone while you're under the hood. No shipping, no waiting.
Is this Kobelco SK260-9 Service Manual printable?
You can. Print the sections you want for your own use and keep the file as your backup.
Reviews
There are no reviews yet.