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Komatsu Utility SK815-5 User Manual

Komatsu Utility SK815-5
258 pages
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WEBM005500

Table of Contents

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Komatsu Utility SK815-5 Specifications

General IconGeneral
Operating Weight6283 lbs
Engine Model4TNV88C-D
Width59.1 in (1, 500 mm)
Length120.1 in (3, 050 mm)
Height74.8 in (1, 900 mm)
Travel Speed7.5 mph
Max. Travel Speed7.5 mph
Width Over Tires59.1 in (1, 500 mm)
Overall Length120.1 in (3, 050 mm)
Overall Height74.8 in (1, 900 mm)

Summary

SAFETY

GENERAL PRECAUTIONS

Safety measures before operating the machine, including personal protection and work area safety.

PREPARATIONS FOR WORK

Steps to take before starting repairs, such as parking, blocking wheels, and securing equipment.

FOREWORD

STRUCTURE AND FUNCTION

Explains the structure and function of each component for understanding and troubleshooting.

TESTING AND ADJUSTMENTS

Details checks and adjustments needed after repairs, including troubleshooting charts.

REMOVAL AND INSTALLATION

Provides procedures for removing and installing machine components, including precautions.

STANDARD MAINTENANCE

Outlines standard maintenance procedures, checks, and specifications for machine components.

HOW TO READ THE SHOP MANUAL

SYMBOLS

Explains the meaning of various symbols used in the manual to highlight important safety and quality points.

STANDARD TIGHTENING TORQUE

STANDARD TIGHTENING TORQUE OF BOLTS AND NUT

Tables listing standard tightening torques for various bolt and nut sizes based on grade.

TIGHTENING TORQUE FOR NUTS OF FLARED

Specific torques for nuts used with flared fittings in hydraulic circuits.

COATING MATERIALS

ADHESIVES

Lists adhesives with codes and applications for sealing and locking needs.

GASKET SEALANT

Details gasket sealants and their uses on flat surfaces or specific clearances.

ELECTRIC WIRE CODE

CLASSIFICATION BY COLOUR AND CODE

Explains the coding system for wire colors and their corresponding symbols for wiring diagrams.

WEIGHT TABLE

TABLE OF OIL AND COOLANT QUANTITIES

CONVERSION TABLE

METHOD OF USING THE CONVERSION TABLE

Explains how to use the provided conversion tables with examples.

TEMPERATURE CONVERSION TABLE

STRUCTURE AND FUNCTION

P.T.O.

Details the power take-off unit, its components, and operation.

POWER TRAIN

Describes the power transmission system of the machine, including engine, pumps, axles, and drives.

TRANSMISSION

Explains the drive chains, sprockets, and wheel hubs that constitute the transmission system.

FINAL DRIVE

Details the left and right final drive components, including port connections and functions.

HYDRAULIC PUMP

Explains the function, structure, and operation of the hydraulic pumps used in the machine.

CLSS

Defines CLSS (Closed center Load Sensing System) and details its operation and control features.

CYLINDERS

Illustrates and describes the construction and specifications of the hydraulic cylinders.

ELECTRICAL DIAGRAM (ENGINE LINE)

Provides the electrical wiring diagram for the engine line, showing component connections.

TESTING AND ADJUSTMENTS

Normal or standard technical data

Lists standard and permissible technical data for engine and machine operations.

Special tools

Lists special tools required for testing and adjustment procedures, including codes and descriptions.

Checking the engine speed

Details the procedure for checking engine speed at low and high idling, including test conditions.

Measurement of the compression pressure

Guides on measuring cylinder compression pressure, including test conditions and tool usage.

Control and adjustment of the injection timing

Explains checking and adjusting engine injection timing using flywheel and pump rotation.

Hydraulic pressure

Lists standard and permissible hydraulic pressures for key system components.

Control valve

Covers checking operating pressures for unloading valve and working equipment, plus main relief valve adjustment.

Bleeding air from the hydraulic circuits

Provides procedures for bleeding air from hydraulic pumps, cylinders, and optional equipment.

REMOVAL AND INSTALLATION

HOW TO READ THE MANUAL

Explains how to interpret the manual's structure, symbols, and notation for procedures.

PRECAUTIONS TO BE TAKEN WHILE WORKING

Lists general precautions for dismantling/installing parts, including safety and proper handling.

REMOVAL OF THE ENGINE HOOD

Details the steps for removing the engine hood, including loosening screws and removing the retainer nut.

TILTING THE CAB

Provides steps for tilting the cab, including loosening screws, raising it, and inserting a safety pin.

REMOVAL OF THE BATTERY

Steps for removing the battery, including disconnecting cables, loosening nuts, and tilting the clamp.

REMOVAL OF THE INJECTION PUMP

Details removing the injection pump by disconnecting various components and systems.

REMOVAL OF THE CYLINDER HEAD (SK714-5 SK815-5)

Guides on removing the cylinder head by disconnecting battery, draining coolant, and removing components.

REMOVAL OF THE RADIATOR GROUP

Details removing the radiator group by tilting cab, draining fluids, and disconnecting hoses and cables.

REMOVAL OF THE ENGINE-PUMP GROUP

Guides on removing the engine-pump group by tilting cab, draining fluids, and disconnecting components.

REMOVAL OF THE COMPLETE HYDRAULIC PUMP

Details removing the hydraulic pump by tilting cab, draining oil, and disconnecting pipes and connectors.

REMOVAL OF THE CONTROL VALVE

Details removing the control valve by tilting cab, releasing pressure, draining oil, and disconnecting pipes.

REMOVAL OF THE HUB WHEEL

Steps for removing the hub wheel, including raising machine, loosening nuts, draining oil, and removing cover.

REMOVAL OF THE FINAL DRIVE

Guides on removing the final drive by disconnecting chains, hydraulic pump, pipes, and loosening screws.

REMOVAL OF THE RAISING CYLINDER

Steps for removing the raising cylinder by loosening screws, disconnecting pipes, and removing pins.

DISASSEMBLY OF THE WORK EQUIPMENT CYLINDERS

Details disassembling work equipment cylinders, including removing guard rings and unscrewing the head.

REMOVAL OF THE COMPLETE WORKING EQUIPMENT

Steps for removing working equipment, including loosening screws, disconnecting electrical outlets, and attaching hoisting tackle.

STANDARD MAINTENANCE

P.T.O.

Standard maintenance checks and procedures for the Power Take-Off (PTO) unit.

Transmission

Standard maintenance procedures for the transmission system, including torque values.

Final drive

Standard maintenance checks for the final drive, including torque specifications for various fasteners.

Hydraulic pump

Standard maintenance procedures and torque values for the hydraulic pump components.

Control valve

Standard maintenance procedures and torque values for the control valve (super high-flow version).

CYLINDERS

Standard maintenance checks for cylinders, including tolerances for bushing and piston rod mounting pins.

WORKING EQUIPMENT

Standard maintenance checks for working equipment, including clearances for bushing and mounting pins.

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