Komatsu PC490LC-11 User Manual

CEAM028104
Operation & Maintenance
Manual
-11
HYDRAULIC EXCAVATOR
SERIAL NUMBERS PC490LC-11 A41001 and up
ENGINE
6D125E-6
This material is proprietary to Komatsu America International Company and is not to be reproduced, used, or
disclosed except in accordance with written authorization from Komatsu America International Company.
It is our policy to improve our products whenever it is possible and practical to do so. We reserve the right to make
changes or improvements at any time without incurring any obligation to install such changes on products sold
previously.
Due to this continuous program of research and development, revisions may be made to this publication. It is
recommended that customers contact their distributor for information on the latest revision.
Copyright 2016 Komatsu
Printed in U.S.A
August 2016 Komatsu America Corp.

Komatsu PC490LC-11 Specifications

General

Brand	Komatsu
Model	PC490LC-11
Category	Excavators
Language	English

Summary

FOREWORD

CALIFORNIA Proposition 65 Warning (Diesel)

Warns about health risks from diesel engine exhaust emissions.

CALIFORNIA Proposition 65 Warning (Battery)

Warns about health risks from battery components containing lead.

BEFORE READING THIS MANUAL

Essential reading before operating or maintaining the machine for safety.

SAFETY INFORMATION

Explains safety signal words (DANGER, WARNING, CAUTION) and their meanings.

INTRODUCTION

Details machine uses, directions, and operator visibility standards.

VISIBILITY FROM OPERATOR'S SEAT

Illustrates operator visibility zones according to ISO standards.

ENGINE TECHNOLOGY

Describes Komatsu's emission control technology (KDPF and SCR).

PRODUCT INFORMATION

Location of serial number plates and distributor contact information.

SAFETY

SAFETY LABELS

Guidelines for proper handling, cleaning, and replacement of safety labels.

LOCATION OF SAFETY LABELS

Diagrams showing the placement of safety labels on the machine.

CONTENTS OF SAFETY LABELS

Explanations of specific safety labels and their warnings.

GENERAL PRECAUTIONS

Covers broad safety rules for operation, inspection, and maintenance.

KEEP MACHINE CLEAN

Emphasizes the importance of maintaining machine cleanliness to prevent slips and electrical issues.

PRECAUTIONS TO PREVENT FIRE

Details measures to prevent fires caused by fuel, oil, or combustible materials.

PRECAUTIONS WHEN GETTING ON OR OFF MACHINE

Instructions on safely mounting and dismounting the machine using handrails and steps.

PRECAUTIONS RELATED TO PROTECTIVE STRUCTURES

Information on ROPS, OPG, and seat belt usage for operator protection.

UNAUTHORIZED MODIFICATION

Warns against modifying the machine without authorization due to safety and performance risks.

PRECAUTIONS FOR OPERATION

General safety rules and considerations for operating the machine on job sites.

DO NOT GO CLOSE TO HIGH-VOLTAGE CABLES

Critical safety measures to avoid electrocution when working near power lines.

ENSURE GOOD VISIBILITY

Importance of maintaining clear visibility and using signalmen in poor conditions.