Komatsu MX502 Hydraulic Excavator Operation & Maintenance Manual (EN)

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SEAM061700T Operation & Maintenance Manual MX502 HYDRAULIC EXCAVATOR SERIAL NUMBERS MX50 7038 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 2004 Komatsu Printed in U.S.A. Komatsu America Corp. March 2004

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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 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 main Alway s be su re to read an d understan d this manua l thoroughly before performing operation and m Read t he saf ety messages given in thi s manual an d the safety l abels aff ixed to the machine thorou understand t Keep this manu al at the stora ge location for the Oper ation and Ma intenanc e Manual given below, and If t his manual h as been lost o r has becom e dirty and cannot be re ad, requ est a replacement manual im 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 If t his machine has been purc hased in ano ther countr y or purchas ed from s omeone in another country devices a nd sp ecifications t hat are nece ssary for u se in your c ountry. I f there is any question abo complies with t he applicable standards a nd regulatio ns of your c ountry, consult Komatsu or your K operating the m achine. Storage l Pocket o ocation for t n inside of c he Operati over of too on and Mai lbox under ntenance M operator's

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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 to 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 a nd 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 signal wor ds are used to express th e potentia l level of hazard potentially hazardous situ ation which, if not avoide d, may re sult in minor or jury. This word is used als o to 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 safety lo ck lever in the L OCK positio n. If y ou acc identally touch the control lev ers when th ey are not locked, 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 protect t he machine or to give infor mation that is useful to kno is word is used for p recautions that must be taken to avoid actions whi ch coul d shorten life of th e machine. is word is used for in formation that i s useful 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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