Komatsu PC58UU-3 Hydraulic Excavator Manual (EN)

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SEAM040500T Operation & Maintenance Operation & Maintenance Operation & Maintenance Operation & Maintenance Manual Manual Manual Manual PC58UU -3 HYDRAULIC EXCAVATOR SERIAL NUMBERS PC58UU - 20001 and up This material is proprietary to Komatsu Utility Division and is not to be reproduced, used, or disclosed except in accordance with written authorization from Komatsu America International Company. It is out 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 2001 Komatsu DataKom Publishing Corporation December 2001

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FOREWORD FOREWORD FOREWORD 0. This manual provides rules and guidelines which will help you use this machine safely and effectively. The pre- cautions in this manual must be followed at all times when performing operation and maintenance. Most accidents are caused by the failure to follow fundamental safety rules for the operation and maintenance of machines. Acci- dents can be prevented by knowing beforehand conditions that may cause hazard when performing operation and maintenance. Operators and maintenance personnel must always do as follows before beginning operation or mainte- nance.

Always be sure to read and understand this manual thoroughly before performing operation and maintenance. Read the safety messages given in this manual and the safety labels affixed to the machine thor- oughly and be sure that you understand them fully. Keep this manual at the storage location for the Operation and Maintenance Manual given below, and have all personnel read it periodically. If this manual has been lost or has become dirty and cannot be read, request a replacement manual immediately from Komatsu or your Komatsu distributor. If you sell the machine, be sure to give this manual to the new owners together with the machine.

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 specifications 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 operat- ing the machine. Pocket at rear of operator's seat 1-2 WARNING

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FOREWORD SAFETY INFORMATION SAFETY INFORMATION 0. To enable you to use this machine safely, safety precautions and labels are given in this manual and affixed to the machine to give explanations of situations involving potential hazards and of the methods of avoiding such situa- tions. Signal words The following signal words are used to inform you that there is a potential hazardous situation that may lead to per- sonal injury or damage. In this manual and on machine labels, the following signal words are used to express the potential level of hazard. Indicates an imminently hazardous situation which, if not avoided, will result in death or seri- ous injury.

This signal word is to be limited to most extreme situations. Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. Indicates a potentially hazardous situation which, if not avoided, may result in minor or mod- erate injury. It may also be used to alert against unsafe practices. Example of safety message using signal word When standing up from the operator's seat, always place the safety lock lever in the LOCK position. If you accidentally touch the levers when they are not locked, this may cause a serious injury or damage.

In addition to the above, the following signal words are used to indicate precautions that should be followed to pro- tect the machine or to give information that is are useful to know. This word is used for precautions that must be taken to avoid actions which could shorten the life of the machine. This word is used for information that is useful to know. 1-5 WARNING

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SAFETY INFORMATION FOREWORD Safety labels Safety labels are affixed to the machine to inform the operator or maintenance worker on the spot when carrying out operation or maintenance of the machine that may involve hazard. This machine uses "Safety labels using words" and "Safety labels using pictograms" to indicate safety procedures. Example of safety label using words Safety labels using pictogram Safety pictograms use a picture to express a level of hazard- ous condition equivalent to the signal word. These safety pic- tograms use pictures in order to let the operator or maintenance worker understand the level and type of hazard- ous condition at all times.

Safety pictograms show the type of hazardous condition at the top or left side, and the method of avoiding the hazardous con- dition at the bottom or right side. In addition, the type of haz- ardous condition is displayed inside a triangle and the method of avoiding the hazardous condition is shown inside a circle. Komatsu cannot predict every circumstance that might involve a potential hazard in operation and maintenance. Therefore, the safety messages in this manual and on the machine may not include all possible safety precau- tions.

If any procedures or actions not specifically recommended or allowed in this manual are used, it is your responsi- bility to take the necessary steps to ensure safety. In no event should you engage in prohibited uses or actions described in this manual. The explanations, values, and illustrations in this manual were prepared based on the latest information available at that time. 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 of your machine or for questions regarding information in this manual.

The numbers in circles in the illustrations correspond to the numbers in ( ) in the text. (For example: (1)) 1-6

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