TEN00030-01D PC228US-3 & PC228USLC-3 HYDRAULIC EXCAVATOR

COVER

TEN00030-01 Operation & Maintenance Manual PC228US -3 PC228USLC -3 HYDRAULIC EXCAVATOR SERIAL NUMBERS PC228US-3 30001 and up PC228USLC-3 30001 and up This material is proprietary to Komatsu America Corp. and is not to be reproduced, used, or disclosed except in accordance with written authorization from Komatsu America Corp. 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 2005 Komatsu Printed in U.S.A. Komatsu America Corp. July 2005

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FOREWORD

. FOREWORD FOREWORD effectively. The maintenance of hazard when WARNING A magazine box provided on the left side of operator's seat 1 - 2 FOREWORD This manual provide guidelin precautions i n this manual must accidents are caused by t can machines.

A ccidents performing op eration and m aintenanc hich achine ollowed at all ti mes when erforming operat ion and mainte to fo llow fundamental safety rules for the op knowing condition Before beginni ng operation or maintenanc e, operators and m aintenance personnel mu st alway s observe the fol Rea d this m anual thoroughl y and u nderstand its contents Rea d the sa fety messages a nd safety la bels given in this manual carefull y so that th ey shou ld be understood Keep t his man ual at the storag e location fo r the Operation an d Maintenance Manual gi ven belo w so that all per in working on t he machine can consul t it p eriodicall In case this ma nual should be l ost or d amaged, immediately c ontact Komats u or your K omatsu distributor to obt When you sell the machine, ma ke sur e that this manual shou ld be p rovided to the new owner t ogether with the In this manual, measurements are expresse d in international standa rd units ( SI).

For the referen ce purpose, weig the pas t are als o displayed in { }. S torage location for th e Operatio n an d Maintenan ce Manual

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SAFETY INFORMATION

. FOREWORD SAFETY INFORMATION Signal words The following signal words are used to inform you that there is a potential hazardous situation that may lead to hazardous situation which, if not avoided, will result in death or Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

WARNING indicate precautions that should be followed to 1 - 5 SAFETY INFORMATIO To ena ble you t o use thi s machine s afely, safe ty precautions an d labels are g iven in t his manual and affi xed to the machin giv otential such situatio person al injury o r dama In this manual a nd on m achine labe ls, the following signa l words are used to express th e potentia l level of hazard ndicates an imminentl serious injur y. potentially hazardou or moderate in jury. This word is us ed also to alert agai nst unsafe practices that m ay cause property da Exampl e of safety messag e using signa When st anding up from the operator's s eat, always place the lo ck lever i the LOC K position .

If you ac cidentally touch th e control lev ers when th ey are not lo cked, thi may cau se a serio us injury or death. Other si gnal word In addi tion to th e above , the follow ing signal word s are used t protect the machine or t o give infor mation that is useful t o know. This word is used for p recautions that mu st be taken to avoid actions whi ch coul d shorten he life of th e machine. This word is used for in formation that is u sefu l to kno

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SAFETY INFORMATION

. FOREWORD SAFETY INFORMATION Safety labels Example of safety label using words 1 - 6 Safety labels are af fixed to the machine to inform t he operator or maintenan ce worker on the sp ot when carrying out operation or mainte nance of the machine that ma y involve hazard . This machine uses "Safety labels using words" an d "Safety labels using pi ctograms" to indicat e safety procedures. Safety labels using pi ctogram use a picture to express a level of hazardous Safety pictograms condition equivalen t to the signal word. These s afety pictograms use pictures in ord er to let the operator or mai ntenance worker understand the lev el and type of hazardous cond ition at all times.

Safety pictograms show the type of hazardous co ndition at the t op or left side, and the method of avoiding the hazar dous condition at the bottom or rig ht side. In addition, the typ e of hazardous condition is display ed inside a triangle and the m ethod of avoiding the hazardous con dition is shown inside a circle . potentia aintenance. Therefore, the safe ty messages in this manual an d on the machine may no t include a ll possibl e safety precautions. If any procedureso r actions not specifically recom mendedor allowed in this manual ar e used, it is your r esponsibility to take the necess ary steps to ensure safety.

In no event should you engage in prohibited use s or actions described in this manua The explanations, values, and illustrations in this manual were prepared b ased on th e latest i nformation available at that time. Contin uing improvements in the de sign of this machine can lead to ch anges in detail which may not be reflected in this manual. Consult Komatsu or y our Komatsu distributor f or the lates t availabl e information of y our machine or for que stions regarding information in this manual . The numbers in cir cles in the illustrations corresp ond to the numbers in ( ) in the tex t. (For e xample: 1 -> (1)

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