Komatsu PC138US Crawler Excavator Manual (EN)

FOREWORD

. FOREWORD FOREWORD FOREWORD use this machine safely and effectively. The performing operation and maintenance. Most rules for the operation and maintenance of conditions that may cause a hazard when WARNING periodically. whether your product A magazine box provided on the left side of operator's seat 1 - 2 This manual precautions in this manu followed to follow at all times accident s are caused by ccidents ca the failure fundament al safet machines.

A forehan performing op eration and maintenan Operator s and maintenance personnel m ust always d o as follows before b eginning operation or mainten Alway s be su re to read an d understan d this manua l thoroughly before performing operation and main Read t he saf ety messages given in thi s manual an d the safety labels af fixed to the machine thoroughl understand t Keep this manu al in the stora ge location for the oper ation and ma intenanc e manual given below, and ha If t his manual h as been lost o r has becom e dirty and cannot be re ad, requ est a replacement manual imm or your K omats u distributor.

If you sel l the m achine, be su re to give th is manual to the new ow ners together Komatsu delive rs machines t hat comply w ith all applic able regulati ons and standards of the country to whi If t his machine h as been purc hased in ano ther countr y or purchas ed from s omeone in another country, it devices a nd sp ecifications t hat are nece ssary for u se in your c ountry. I f there is any question about complies with t he applicable standards a nd regulatio ns of your c ountry, consult Komatsu or your Kom operating the m achine. Storage l ocation for t he Operati on and Mai ntenance M

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SAFETY INFORMATION

. FOREWORD SAFETY INFORMATION Signal words Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

Indicates a WARNING indicate precautions that should be followed to 1 - 5 SAFETY INFORMATIO To enab le you t o use t his machine s afely, safe ty precautions and labels are g iven in t his manual and affi xed to the machine giv such situation The ord persona l injury or damage In this m anual a nd on machine labe ls, the following signa l words are used to express th e potentia l level of hazard potentially hazardou s situatio n which, if not avoide d, may re sult in minor or jury. This word is us ed also t o alert agai nst unsafe practices that m ay cause mage.

Example of safety message u sing signa When sta nding up from t he o perator's s eat, always place the lo ck lever in the LOCK p osition. If y ou acc identally touch the control lev ers when th ey are not lo cked, this may cause a serious injury or deat Other sig nal word In additi on to th e above, t he follow ing signal word s are used to protect t he machine o r to give infor mation that is useful t o know. is word is used for p recautions that mus t be taken to avoid actions whi ch coul d shorten life of th e machine. is word is used for in formation that is us eful 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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BREAKING-IN THE NEW MACHINE

. FOREWORD INTRODUCTION DIRECTIONS OF MACHINE BREAKING-IN THE NEW MACHINE CAUTION 1 - 7 INTRODU CTION achine is designed to be used mainly for the following work: ork Th is Komatsu m achine is designed to be used mai nly for the following work Digging work Leveling work Ditching work Loading work Demolition w Se e the section "RECOMMENDED APPLICATION S (PAGE 3-94)" for furth er details. In t his manual, t he terms front, rear , left, and right re fer to the t ravel direction as seen from the operator's seat when the operator's s eat is facing the fro nt and the sproc ket is at th e rear of the m achine. Yo ur Komatsu ma chine has been thorou ghly adjusted and tested befo re shipment.

Ho wever, operating the machine under severe conditions at the beginning can advers ely affect the perf ormance an d shorten the ma chine life. Be sure to break-i n the machine for the initial 100 hours ( as indicate d by the service During break-in o perations, follow the p recautions descri bed in this Idle the engin e for 5 minutes aft er starting it up. eds. Avoid operati on with heavy load s or at high spe Immediately a fter starting the en gine, avoid sudd en starts, s udden acceler ation, unnecessary sudden stops, and sudden chan ges in direction.

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