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Kobelco SK50SR-5, SK50SR-C Shop Manual with Wiring Diagrams

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$49.99 USD · one-time payment

Model: SK50SR-5 | SK50SR-C
Type: Hydraulic Excavator
Serial: PJ06-08890~
933 Pages·141 MB·Searchable PDF·English·Print-Ready
  • ✓ Wiring Diagrams
  • ✓ Hydraulic Schematics
  • ✓ Torque Specs
  • ✓ Bookmarks
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Kobelco SK50SR-5, SK50SR-C electrical system wiring diagram for the main harness, showing connectors, relays, and cable splices.
Kobelco SK50SR-5, SK50SR-C Shop Manual with Wiring Diagrams
$49.99

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Kobelco shop manual S5PJ0028E01 applies to two hydraulic excavators, the SK50SR-5 and SK50SR-C, and runs 933 pages from machine specifications through a full engine teardown. Hydraulic circuit diagrams trace neutral, travel, slew and bucket flow through the control valve, while the electrical section, a solid share of this Kobelco SK50SR-5, SK50SR-C shop manual PDF, lays out harness routing, connector detail and the complete circuit diagram. Troubleshooting charts sort hydraulic, electrical and engine faults by symptom, and the travel chapter handles the crawler, rollers, front idler adjuster and sprocket. Each full turn of the main relief adjuster moves pressure 12.2 MPa (1770 psi); torque lock nut (2) to 28~31 N·m afterward, and condemn any travel motor draining 3 liters or more in 30 seconds. It's you and the machine, nobody to call. The PDF is bookmarked and text-searchable, and it prints cleanly, so the relief valve pages can sit on your bench and soak up hydraulic oil.

What's Inside This Manual

SystemPagesKey Topics
SK50SR-5 Hydraulic Excavator Shop Manual1-7Revision History, General Safety Information, Machine Identification, Applicable Machines, Manual Part Number, Issue Date, Safety Precautions, Warning Labels, Operational Safety, Maintenance Safety
Outline10-17International Unit Conversion System
Specifications18-29Machine Dimensions, Engine Specifications, Hydraulic Components, Weight, Performance
Attachment Dimensions30-53Boom Dimensions, Arm Dimensions, Bucket Dimensions, Dozer Dimensions, Swing Bracket Dimensions
Tools54-65Torque Specifications, Capscrews, Hydraulic Hose Fittings, Lifting Jigs, Special Spanners
Standard Maintenance Time Table66-75Standard Maintenance Time, Equipment Portion, Work to Be Done
Maintenance Standards and Test Procedures76-95Engine Speed Measurement, Hydraulic Oil Pressure, Travel Performance, Slew Performance, Attachment Operating Performance
Hydraulic System96-155Electrical System, Hydraulic Circuit, Hydraulic Circuit Operation, Neutral Circuit, Travel Operating Circuit, Slew Operating Circuit, Bucket Operating Circuit, Circuit Diagram, Harness Connection, Electrical Equipment List, Harness and Cable List, Arrangement Drawing for Components and Harness, Detail of Harness and Cable
Components System156-229Hydraulic Pump, Pilot Valve, Control Valve, Slewing Motor, Travel Motor, Swivel Joint
General Disassembly and Assembly230-233Specification of Tightening Torque
Attachments234-265Removing and Installing, Attachment Assembly and Name, Bucket, Arm, Boom, Swing
Upper Slewing Structure266-485Travel System, Canopy and Cab, Guard and Cover, Floor Plate Assembly, Battery, Counterweight, Pump, Crawler, Upper Roller, Lower Roller, Front Idler, Idler Adjuster, Sprocket
Troubleshooting Hydraulic System486-495General Precautions, Trouble Diagnosis, Attachment, Travel Operation, Slewing Operation, Pump
Troubleshooting Electrical System496-507Trouble Diagnosis, General, Attachment Operation, Travel Operation, Deceleration
Troubleshooting Engine508-519Trouble Diagnosis, Starting Trouble, E/G Rotation Trouble, Output Drops Down, Other Trouble
Engine Introduction and Specifications520-543Engine Model Identification, Safety Precautions, Engine Specifications, Warranty Information
General Service Information544-581Component Identification, Emission Control Regulations, Diesel Fuel Specifications, Engine Oil Specifications, Engine Coolant Specifications
Engine Maintenance and Troubleshooting582-653Engine Speed Specifications, Periodic Maintenance Schedule, Maintenance Procedures, Troubleshooting Engine Rotation
Engine Disassembly and Assembly654-761Cylinder Head Disassembly, Rocker Arm Assembly, Valve Clearance Adjustment, Crankshaft and Camshaft Components, EGR System
Fuel System762-839Cooling System, Lubrication System, Fuel Injection Pump, Stop Solenoid, Cold Start Device, Fuel Injectors, Fuel System Diagram, Cooling System Diagram, Engine Coolant Pump Components, Thermostat Inspection, Radiator Cap Test, Lubrication System Diagram, Trochoid Oil Pump, Oil Pressure Check, Rotor Clearance Inspection
Turbocharger and Starter Motor840-913Turbocharger Components, Washing Procedure, Rotor Play Inspection, Starter Motor Specifications, Starter Motor Troubleshooting
Supporting Data914-933Hydraulic Circuit Diagram, Angle Dozer Specification, Hydraulic Circuit Operation, Electric Circuit Diagram

Quick Reference Specifications

SpecificationValuePage
Return FilterSafety valve containing/Filter Type (30μ)p. 22
Main relief valve & Overload relief valve pressure adjustment per full turn12.2 MPa (1770 psi)p. 85
Tightening torque for lock nut (2) on main relief valve28~31 N·m (20.7~22.9 lbf·ft)p. 86
Standard value for drain rate of travel motor1.5 (0.40) or less liter (gal.) /30secp. 88
Serviceability limit for drain rate of travel motor3 (0.79) or more liter (gal.) /30secp. 88
Tightening torque of sems-bolt12 N·m (8.9 lbf·ft)p. 84
Tightening torque of battery ground cable clip nut (M10)46.1 N·m (34.0 lbf·ft)p. 122
Working pressure (Piston pump P1 + P2)22.5 MPa (3263 psi)p. 158
Working pressure (Gear pump P3)21.2 MPa (3074 psi)p. 158
Rubber shoe appropriate tension85~95mm (3.35~3.74 in)p. 411
Steel shoe appropriate tension130~150mm (5.12~5.91 in)p. 411
Travel motor reduction unit oil volume900 cc (55 cu•in)p. 441
BrandKobelco
ModelSK50SR-5, SK50SR-C
Machine TypeHydraulic Excavator
Manual TypeShop Manual
LanguageEnglish
FormatSearchable PDF (Digital Download)
Pages933
File Size141 MB
Manual No.S5PJ0028E01
Serial RangePJ06-08890~
Wiring DiagramsYes
Hydraulic SchematicsYes
Torque SpecificationsYes
Bookmarked / IndexedYes
SKU: KOBELCO-SK50SR5SK50SRC-SHP-96823 Categories: , Tags: , , Brand:

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