Whether you are torquing shoe bolts or splitting the main pump on the bench this afternoon, this Kobelco SK60 service manual PDF gives you the full 750-page factory shop manual (OEM ID S5LE0005E) for this hydraulic excavator. Hydraulic schematics trace oil from the main pump through the control valve and swivel joint to the travel and swing motors, wiring diagrams map the electrical system, and troubleshooting charts sort faults by drive, swing, travel and attachment systems. Component teardown fills more than two thirds of the book, covering the hydraulic pump, travel motor, reduction unit and cylinders with exploded views and reassembly torques. Hold hanger to pilot piston clearance at 0.0115 mm against a 0.022 mm limit, and run shoe bolts to 30 ± 3 kgf·m (217 ± 22 ft·lbs). A regulator rebuild leaves no room for a guessed clearance. With bookmarked sections and a searchable text layer, you find the figure fast and have the SK60 swinging and tracking again.
What's Inside This Kobelco SK60 Manual
| System | Pages | Key Topics |
|---|---|---|
| Preventive Maintenance | 2-20 | Safety Precautions, General Dimensions, Specifications and Performance, Type of Shoes |
| Location and Weight of Components | 21-27 | Location of Components, Weight of Components, Transportation Weight |
| Maintenance Standards and Test Procedures | 28-30 | Pressure Measurement, Engine Revolution, Circuit Pressure, Cylinder Speed, Cylinder Oil Tightness, Swing Performance |
| Operation and Controls | 31-46 | Operating Controls, Cylinder Speed, Cylinder Oil Tightness, Swing Performance, Travel Performance |
| Troubleshooting | 47-70 | Drive System, Hydraulic System, Swing System, Travel System, Attachment System |
| Working Standards | 71-75 | Tightening Torques, Capscrews, Nuts, Sleeves, Special Spanner, Screw Locking Compounds |
| Systems | 76-225 | Drive System, Hydraulic System, Swing System, Travel System, Attachments, Control System, Upper Frame, Electrical System |
| Electrical System | 226-271 | Electrical Circuit Diagrams, Wiring Harnesses, Air Conditioning System |
| Engine | 272-494 | Engine Assembly, Lubricating System, Cooling System, Fuel System, Engine Electricals, Troubleshooting |
| Hydraulic Pump | 495-529 | Hydraulic Gear Pump |
| Control Valve | 530-619 | Pilot Valve, Swing Control Valve, Relief Valve (Pilot), Holding Valve, Other Valves |
| Hydraulic Motor | 620-692 | |
| Swivel Joint | 693-734 | Hydraulic Cylinder |
| Reduction Unit | 735-750 |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Shoe bolt torque | 30 ± 3 kgf·m (217 ± 22 ft·lbs) | p. 144 |
| Tightening torque for guide (114) | 8kgf·m (58ft-lbs) | p. 513 |
| Tightening torque for piston pump cover (401) socket head capscrews (408) | 10~12.5kgf·m (72~90ft-lbs) | p. 513 |
| Engine Rated Output (JISD1005 Net) | 57ps/2,200rpm | p. 10 |
| Swing Speed | 13rpm | p. 10 |
| Travel Speed (2-SPEED) | 5.5 km/h (3.4 MPH) | p. 10 |
| Travel Speed (1-SPEED) | 3.7 km/h (2.3 MPH) | p. 10 |
| Valve Clearance (Intake/Exhaust) | 0.4mm (0.016 in) | p. 19 |
| Travel Relief Valve (Left) Tightening Torque | 6.5~7 kgf-m (47~51 ft-lbs) | p. 37 |
| Swing Control Valve Relief Valve Tightening Torque | 15±1.5 kgf-m (108±11 ft-lbs) | p. 37 |
| Engine Governor Lever Nut Tightening Torque | 3.5±0.4 kgf-m (25±3 ft-lbs) | p. 209 |
Kobelco SK60 Common Problems This Manual Covers
Kobelco SK60 excavator swing control valve, relief valve or swing motor fault with swing speed low
Check that the link system and control cables work positively, then verify the swing control valve spool moves smoothly by hand. Exchange the LH and RH main relief valves, then the front and rear pump discharge hoses, and see if the symptom moves (page 52). Relieve all pressure in the oil system before disconnecting any line (page 2). Measure swing relief pressure and swing motor drain rate; rated swing speed is 13rpm (page 10).
Manual Section: Swing System Troubleshooting p. 52Travel motor or travel control valve suspected when one track side does not travel at all
Verify the travel control valve spool changes over and moves lightly by hand; disassemble and repair a stuck spool. Check the counterbalance spool in the travel brake valve the same way. Relieve all oil pressure before disconnecting hoses (page 2). Exchange the front and rear pump discharge hoses following page 55; if the fault moves, the hydraulic pump is broken. If not, inspect the travel motor and travel reduction unit.
Manual Section: Travel System Troubleshooting p. 55During single travel operation, travel speed on one side falls and the machine curves
Check that the control valve spool changes over positively, then measure travel motor leak rate against standard. Inspect the travel motor parking brake and verify external pilot pressure is within standard; if low, look for leaks in the external pilot piping, never with your hands (page 3). Clean a clogged orifice in the control valve following page 55. Relieve oil pressure, then exchange front and rear pump discharge hoses to rule out the hydraulic pump (page 2).
Manual Section: Travel System Troubleshooting p. 55Main relief, port relief or travel relief set low and hydraulic oil temperature rising abnormally
Let the machine cool first, because fluids are hot right after shutdown (page 2). Check hydraulic oil level and top up to standard with specified oil. Clean the oil cooler, clear the air circulation route, then adjust or replace the fan belt. Measure main, port and travel relief set pressures following page 50 and readjust only if outside tolerance (page 36). Replace oil of wrong viscosity and clean the suction strainer.
Manual Section: Hydraulic System Troubleshooting p. 50Pump connection coupling or hydraulic pump fault when engine starts but machine does not operate
Check hydraulic tank oil level and top up to standard. Remove the dust plug under the engine flywheel and look for rubber coupling particles; repair a broken coupling element, or replace the hub or retighten the setscrew on a worn spline, following page 49. Listen for abnormal pump noise, verify the control valve spool is not stuck, and measure each relief valve set pressure.
Manual Section: Drive System Troubleshooting p. 49Travel brake valve or parking brake fault when the machine does not stop on a slope
Measure travel brake pressure against standard; if low, repair or replace the brake valve. Relieve all oil pressure before disconnecting any pilot line (page 2). Check the parking brake pilot line for clogging and clean the pilot piping. Inspect the parking brake friction plate for wear, then measure travel motor drain rate following page 56 and repair the travel motor if it is out of standard.
Manual Section: Travel System Troubleshooting p. 56Frequently Asked Questions
How do I bleed air from the Kobelco SK60 hydraulic system?
To bleed air from the hydraulic system, you must loosen the air breather on the hydraulic oil tank and bleed any residual pressure before removing the tank cover and flange. This is a critical safety step to prevent being sprayed by pressurized fluids. p. 82
What is the standard valve clearance for the Isuzu 4JB1 engine in the Kobelco SK60?
The standard valve clearance for both the intake and exhaust valves on the ISUZU 4JB1 engine is 0.40 mm (0.016 in) when the engine is in a cold state. p. 279
What is the cylinder head bolt tightening torque for the Isuzu 4JB1 engine in the Kobelco SK60?
For new bolts, the cylinder head bolt torque is 4.0 ± 1.0 kg-m (28.9 ± 7.2 lb.ft / 39.0 ± 9.8 N-m) for the first step and 8.7 ± 0.5 kg-m (63.0 ± 3.6 lb.ft / 85.3 ± 4.9 N-m) for the second step. p. 373
What is the engine oil capacity of the Isuzu 4JB1 engine on a Kobelco SK60?
The lubricating oil capacity for the ISUZU 4JB1 engine is 5.5 liters (1.45 US gal / 1.21 UK gal). p. 279
What is the injection nozzle opening pressure for the Isuzu 4JB1 engine in the Kobelco SK60?
The injection nozzle opening pressure for the ISUZU 4JB1 engine is 185 kg/cm² (2,630 psi / 18,142 kPa). p. 279
What do I get after purchasing this Kobelco SK60 manual?
Delivery is instant: a 750-page searchable PDF is yours the second checkout clears. Laptop, tablet, or phone, all fine.
Am I able to print pages from this Kobelco SK60 manual?
Yes. Many buyers print one chapter at a time for their own shop and keep the rest on a tablet.
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