TEN00040-03 PC750-7, PC750LC-7, PC750SE-7, PC800-7, PC800SE-7 CRAWLER EXCAVATORS

COVER

TEN00040-03 HYDRAULIC EXCAVATOR PC750 -7 PC750LC -7 PC750SE -7 PC800 -7 PC800SE -7 SERIAL NUMBERS PC750-20072 PC800-40069 and up Unsafe use of this machine may cause serious injury or death. Operators and maintenance personnel must read this manual before operating or maintaining this machine. This manual should be kept near the machine for reference and periodically reviewed by all personnel who will come into contact with it. Komatsu has Operation & Maintenance Manuals written in some other languages. If a foreign language manual is necessary, contact your local distributor for availability. WARNIN WARNIN NOTICE NOTICE

Page 1

FOREWORD

. FOREWORD FOREWORD of when WARNING periodically. before 1 - 2 FOREWORD This manual provid precautions in this accident s are cause machines. Acciden performing operation and maintenan use followed at to follow fu all times performing operation and the operation a maintenance.

ollow fu ndament al safet forehan Operator s and mainten ance personnel m ust always do as follows before b eginning op eration or mainten Alway s be sure to re ad and understan d this manual t horoughly before performing o peration and main Read t he safety mes sages given in thi s manual and t he safety l abels aff ixed to the machine thoroughl y and be sure that understand them ful Keep this manual in the storage location for the operati on and ma intenanc e manual gi ven below, and hav e all personnel re If t his manual has been lost or has becom e dirt y and ca nnot be re ad, reque st a replacement manual imm ediately from Kom or your K omatsu distri If you sel l the machine, be sure to give th is manual to th e new ow ners together with th Komatsu delivers mach ines that comply w ith all applicab le regulati ons and standards of the country to whi ch it has been ship If t his machine has bee n purchased in an other c ountry o r purchas ed from s omeone in a nother country, it may lack certain s devices a nd specificat ions that are nece ssary for use in your c ountry.

I f there is an y question about whether your pro complies with the appl icable standards a nd regulations of your c ountry, consult Kom atsu or your Kom atsu distributor b operating the machine. Storage location for the Operation an d Maintenan ce Manu

Page 3

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 - 3 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

Page 4

SAFETY INFORMATION

. FOREWORD SAFETY INFORMATION Safety labels Example of safety label using words 1 - 4 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 mended or 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 J (1)

Page 5