Komatsu Manual (EN)

1. FOREWORD

1. FOREWORD This manual provides rules and guidelines which will help you use this machine safely and effectively. Keep this manual handy and have all personnel read it periodically. If this manual has been lost or has become dirty and can not be read, request a replacement manual from Komatsu or your Komatsu distributor. If you sell the machine, be sure to give this manual to the new owners. 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.

This manual may contain attachments and optional equipment that are not available in your area. Consult Komatsu or your Komatsu distributor for those items you may require. WARNING Improper operation and maintenance of this machine can be hazardous and could result in serious injury or death. Operators and maintenance personnel should read this manual thoroughly before beginning operation or maintenance. Some actions involved in operation and maintenance of the machine can cause a serious accident, if they are not done in a manner described in this manual. The procedures and precautions given in this manual apply only to intended uses of the machine.

If you use your machine for any unintended uses that are not specifically prohibited, you must be sure that it is safe for you and others. In no event should you or others engage in prohibited uses or actions as described in this manual. 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 operating the machine. The description of safety is given in SAFETY INFORMATION on page 0-4 and in SAFETY from page 1-1. CALIFORNIA Proposition 65 Warning Diesel engine exhaust and some of its constituents are known to the State of California to cause cancer, birth defects, and other reproductive harm. 0-1

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2. SAFETY INFORMATION

2. SAFETY INFORMATION Most accidents are caused by the failure to follow fundamental safety rules for the operation and maintenance of machines. To avoid accidents, read, understand and follow all precautions and warnings in this manual and on the machine before performing operation and maintenance. To identify safety messages in this manual and on machine labels, the following signal words are used. DANGER This word is used on safety messages and safety labels where there is a high probability of serious injury or death if the hazard is not avoided. These safety messages or labels usually describe precautions that must be taken to avoid the hazard.

Failure to avoid this hazard may also result in serious damage to the machine. WARNING This word is used on safety messages and safety labels where there is a potentially dangerous situation which could result in serious injury or death if the hazard is not avoided. These safety messages or labels usually describe precautions that must be taken to avoid the hazard. Failure to avoid this hazard may also result in serious damage to the machine. CAUTION This word is used on safety messages and safety labels for hazards which could result in minor or moderate injury if the hazard is not avoided. This word might also be word for hazards where the only result could be damage to the machine.

NOTICE This word is used for precautions that must be taken to avoid actions which could shorten the life of the machine. Safety precautions are described in SAFETY from page 1-1. 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 precautions. If any procedures or actions not specifically recommended or allowed in this manual are used, you must be sure that you and others can do such procedures and actions safely and without damaging the machine. If you are unsure about the safety of some procedures, contact your Komatsu distributor.

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3. INTRODUCTION

3. INTRODUCTION 3.1 INTENDED USE This machine is intended mainly for the following operations. Digging operations Leveling operations Pushing operations Loading operations For details of the operating procedure, see “12.10 WORK POSSIBLE USING WHEEL LOADER”. 3.2 FEATURES 1. Easy to operate work equipment By using the kick-down switch installed to the knob on the boom control lever, it is possible to shift down from 2nd to 1st, thereby providing speedy digging and loading operations. The powerful digging force and drawbar pull make it easy to dig and scoop up loads. The large dumping clearance and reach make it easy to load dump trucks.

The excellent acceleration and production per unit of fuel make this a very economical machine. Installation of bucket corner teeth and wear plates between the teeth give the bucket a large resistance to wear. 2. Easy to operate machine The electrical transmission control provides light gear shifting, enabling finger control. The length of both the directional and speed levers can be adjusted individually. The PPC valve (proportional pressure type) provides good response when raising the boom and little operating force is required. A wrist rest is provided by the control levers to improve the ease of control. 3.

Operating comfort The sealed pressurized cab with air conditioner make pleasant operations possible. A fabric seat is used for the operator’s seat to give the operator a good ride. A low-vibration cab and viscous mount are employed. 4. High levels of safety Safety is ensured by the good visibility from the cab, the wide area around the operator’s seat, steps for getting on and off the machine, and the walk-through floor at the rear of the cab. The rear access step offers increased safety when the operator gets on and off the machine with something in his hands.

With the handrail and nonskid treatment on the top of the hood, the operator can check the radiator water level and add water to it more safely. Checks before starting and checks for abnormalities during operation can be carried out using the machine monitor. Maintenance free wet-type multiple disc brakes are used. 3.3 BREAKING IN THE MACHINE Your Komatsu machine has been thoroughly adjusted and tested before shipment. However, operating the machine under severe conditions at the beginning can adversely affect the performance and shorten the machine life. Be sure to break in the machine for the initial 100 hours (as indicated by the service meter.) During breaking in:

Idle the engine for 5 minutes after starting it up. Avoid operation with heavy loads or at high speeds. Avoid sudden starts, sudden acceleration, sudden steering and sudden stops except in cases of emergency. The precautions given in this manual for operating, maintenance, and safety procedures are only those that apply when this product is used for the specified purpose. If the machine is used for a purpose that is not listed in this manual, Komatsu cannot bear any responsibility for safety. All consideration of safety in such operations is the responsibility of the user. Operations that are prohibited in this manual must never be carried out under any circumstances. 0-5

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4. LOCATION OF PLATES, TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR

4. LOCATION OF PLATES, TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR 4.1 PRODUCT IDENTIFICATION NUMBER (PIN)/MACHINE SERIAL NO. PLATE On the center right of the front frame. The design of the nameplate differs according to the territory. 4.2 ENGINE SERIAL NO. PLATE POSITION On the right of the cylinder block, when seen from the fan side. 0-6

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