EEAD008404 PC450LC-6K HYDRAULIC EXCAVATOR

COVER

EEAM008404 Operation & Maintenance Operation & Maintenance Operation & Maintenance Operation & Maintenance Manual Manual Manual Manual PC450LC -6K HYDRAULIC EXCAVATOR SERIAL NUMBERS PC450LC -12144 and up 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 2000 Komatsu DataKom Publications & Training Division April 2000

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1. FOREWARD

1. FOREWORD This manual provides rules and guidelines which will help you use this machine safely and effectively. Keep this manual handy and have all personnel read it periodically. If this manual has been lost or has become dirty and can not be read, request a replacement manual from Komatsu or your Komatsu distributor. If you sell the machine, be sure to give this manual to the new owners. Continuing improvements in the design of this machine can lead to changes in detail which may not be reflected in this manual. Consult Komatsu or your Komatsu distributor for the latest available information for your machine or for questions regarding information in this manual.

PC450-ENG 0-1 WARNING • This operation & maintenance manual may contain attachments and optional equipment that are not available in your area. Please consult your local Komatsu distributor for those items you require. • This machine complies with EC directive (89/392/EEC ). Machines complying with this directive display the CE mark • Improper operation and maintenance of this machine can be hazardous and could result in serious injury or death. • Operators and maintenance personnel should read this manual thoroughly before beginning operation or maintenance.

• Some actions involved in operation and maintenance of the machine can cause a serious acci- dent, if they are not done in a manner described in this manual. • The procedures and precautions given in this manual apply only to intended uses of the ma- chine. If you use your machine for any unintended uses that are not specifically prohibited, you must be sure that it is safe for you and others. In no event should you or others engage in prohibited uses or actions as described in this manual. • Komatsu delivers machines that comply with all applicable regulations and standards of the country to which it has been shipped.

If this machine has been purchased in another country or purchased from someone in another country, it may lack certain safety devices and specifica- tions that are necessary for use in your country. If there is any question about whether your product complies with the applicable standards and regulations of your country, consult Komatsu or your Komatsu distributor before operating the machine. • The description of safety is given in SAFETY INFORMATION on page 0-2 and in SAFETY from page 1-1. WARNING

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2.1 SAFETY MESSAGES

2. SAFETY INFORMATION 2.1 SAFETY MESSAGES Most accidents are caused by the failure to follow fundamental safety rules for the operation and mainte- nance of machines. To avoid accidents, read, understand and follow all precautions and warnings in this manual and on the machine before performing operation and maintenance. To identify hazards on the machine pictorial decals are used ( see POSITION FOR ATTACHING SAFETY LABELS). RED WARNING TRIANGLE - This is used on safety labels where there is a high probability of serious injury or death if the hazard is not avoided. These safety messages or labels usually describe precautions that must be taken to avoid the hazard.

Failure to avoid this hazard may also result in serious damage to the machine. ORANGE WARNING TRIANGLE - This is used on safety labels where there is a potentially dangerous situation which could result in serious injury or death if the hazard is not avoided. These safety messages or labels usually describe precautions that must be taken to avoid the hazard. Failure to avoid this hazard may also result in serious damage of the machine YELLOW SAFETY TRIANGLE - This is used on safety labels for hazards which could result in minor or moderate injury if the hazard is not avoided. This word might also be used for a hazard where the only result could be damage to the machine.

NOTICE - This word is used for precautions that must be taken to avoid actions which could shorten the life of the machine. Safety precautions are described in SAFETY from page 1-1. Komatsu cannot predict every circumstance that might involve a potential hazard in operation and mainte- nance. Therefore the safety message in this manual and on the machine may not include all possible safety precautions. If any procedures or actions not specifically recommended or allowed in this manual are used, you must be sure that you and others can do such procedures and actions safely and without damaging the machine.

If you are unsure about the safety of some procedures, contact Komatsu or your Komatsu distributor. PC450-ENG 0-2

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2.3 VIBRATION

2. SAFETY INFORMATION 2.2. NOISE Operator ears noise value (Sound pressure level) Ambient noise value (Sound power level) 95/27/EC 95/27/EC Noise level indicated is the guaranteed value as specified in the directive 86/662/EEC as amended by 95/27/EC 2.3. VIBRATION The weighted root mean square acceleration value to which the operator’s arms are subjected does not exceed 2.5 m/s The weighted root mean square acceleration value to which the operator’s body is subjected does not exceed 0.5 m/s These results were obtained by accelerometers during trench digging. PC450-ENG 0-3

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