Kobelco SK100V SK120V SK120LCV Hydraulic Excavator Shop Manual

Description

Kobelco SK100V SK120V SK120LCV Hydraulic Excavator Shop Manual

This is the full Kobelco SK100V, SK120V and SK120LCV hydraulic excavator shop manual, published under document number S5LP0007E(1). It is the technical reference used in the workshop for maintenance, repair, disassembly, inspection and troubleshooting of these machines, and it is organised into the four major sections Kobelco uses: GENERAL, SYSTEMS, COMPONENTS and PROCEDURE.

File Details

• Manual type: Shop Manual
• Brand: Kobelco
• Models covered: SK100V, SK120V, SK120LCV
• Document number: S5LP0007E(1)
• First edition: April 1994
• Copyright notice: 2017 Kobelco Construction Machinery Co., Ltd.
• Language: English
• Page count: 712
• File format: PDF

Chapters Covered

• GENERAL — Specification
• GENERAL — Operation and Controls (refer to Operators Manual)
• GENERAL — Location and Weight of Components
• GENERAL — Maintenance Standards and Test Procedures
• GENERAL — Preventive Maintenance (refer to Operators Manual)
• GENERAL — Working Standards
• GENERAL — Standard Man-Hour Table
• SYSTEMS — Hydraulic System
• SYSTEMS — Swing Frame
• SYSTEMS — Travel System
• SYSTEMS — Attachments
• SYSTEMS — Control System
• SYSTEMS — Electrical System
• SYSTEMS — Air-Conditioner System
• SYSTEMS — Trouble Shooting
• COMPONENTS — Hydraulic Pump
• COMPONENTS — Control Valve
• COMPONENTS — Other Valves
• COMPONENTS — Hydraulic Motor
• COMPONENTS — Swivel Joint
• COMPONENTS — Hydraulic Cylinder
• COMPONENTS — Reduction Unit
• COMPONENTS — Engine
• PROCEDURE — Disassembly, inspection, reassembly and adjustment procedures throughout

Inside the sections, the manual walks through the specification and performance data for both base machines and the LCV variant, the hydraulic circuit functions and their operation, the electrical harness layouts and connection tables, the air-conditioner refrigerant R134a servicing procedure, and the disassembly/reassembly steps for each major component. Separate sub-chapters cover the upper frame, cab, guards, counterweight, fuel tank, hydraulic oil tank, hydraulic piping, air cleaner, silencer, power take-off, air-conditioner, heater, radiator, fuel line, engine, control valve, swing reduction gear, crawler, rollers, front idler, idler adjuster, sprocket, travel reduction gear, swivel joint, swing bearing, bucket, arm, boom, hydraulic cylinders and swing reduction. Standard man-hour tables, torque tables for capscrews, nuts and sleeves, and the SI unit conversion table are also included.

What This Manual Gives a Technician

The Kobelco SK100V SK120V SK120LCV shop manual is built around the actual service tasks a mechanic will be asked to carry out. It gives the working standard and test procedures for hydraulic pressures, travel and swing performance, attachment operating times and swing bearing play, along with the specified values, reference values for remedy and serviceability limits for each measurement. Relief valve adjusting procedures for the pilot, main, port, swing port and travel overload relief valves are spelled out with the number of turns and pressure change per adjustment. Disassembly and reassembly of the main hydraulic pump, regulator, pilot valve, travel pilot valve, control valve, swivel joint, hydraulic cylinders, swing reduction unit and travel motor is documented step by step with tooling requirements, tightening torques and Locktite/Three-Bond compound notes.

For the engine side, the manual carries the ISUZU 4BD1 and turbocharged 4BD1T engine specifications, tightening torque specifications for standard bolts, valve clearance adjustment, injection timing, compressive pressure, fuel device servicing, fan belt deflection, cooling system and lubrication system diagrams. Troubleshooting flowcharts cover engine starting problems, rough running, output deficiency, exhaust abnormalities, oil consumption, fuel consumption, low oil pressure and battery discharge. The COMPONENTS section opens each assembly with an exploded view and a numbered parts table so the sequence of removal, inspection and reassembly can be followed directly.

Section Highlights

• Hydraulic circuit diagrams with functional explanations of neutral, travel, swing, bucket, boom, arm and composite operations
• Pressure measuring points, relief valve locations and performance inspection standard tables
• Electrical circuit diagrams, harness layouts, connector pinouts and numerically numbered harness connection tables
• Air-conditioner construction, cooling circuit, R134a charging procedure and troubleshooting charts
• Tightening torque tables for metric coarse and fine threads, and for nuts and sleeves in bite-type tube fittings
• Standard man-hour tables for upper, lower, control, hydraulic line, cab, power plant and engine work
• Maintenance standards for the crawler, upper roller, lower roller, front idler, idler adjuster, sprocket, travel reduction gear, swivel joint and swing bearing

Why This Kobelco Shop Manual Matters

Hydraulic excavators of this generation run high-pressure systems where an incorrect adjustment, wrong torque or a missed seal can turn a routine repair into a major failure. The Kobelco SK100V SK120V SK120LCV shop manual supplies the exact figures and sequences so a repair is done to the specification the machine was built for. The maintenance standards let a technician decide whether a part is serviceable, needs adjustment, or is past the point where reconditioning is possible, and the reference values for remedy give a working margin before the service limit is reached. The performance test procedures give a structured way to confirm that a repair has restored proper hydraulic, travel, swing and attachment behaviour rather than leaving it to a road test.

Delivery

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The Kobelco SK100V SK120V SK120LCV hydraulic excavator shop manual is delivered as an instant PDF download after payment. There is no shipping and no waiting for a physical book. The file can be opened on a workshop PC, laptop, tablet or phone, and any page or diagram can be printed for use at the machine. It is a working document intended to be taken to the machine, marked up, and used as the reference for the job in front of you.