INTRODUCTION 3. INTRODUCTION 3.1 INTENDED USE This Komatsu HYDRAULIC EXCAVATOR is designed to be used mainly for the following work: ! Digging work ! Ditching work ! Smoothing work ! Loading work See See 12.15 WORK POSSIBLE USING HYDRAULIC EXCAVATOR on page 2-81. 3.2 FEATURES ! This Komatsu HYDRAULIC EXCAVATOR is equipped with various controls based on an advanced electronics system. " The monitor panel greatly facilitates daily maintenance and self-diagnosis. " Working mode, travel speed and active mode are selectable. " Digging and lifting force can be increased by light-touch control. (For details See 12 OPERATION on page 2-43.) !
Adjustable wrist control levers make operations smooth and easy. ! Air-conditioned operator's cab assures comfortable operation. ! Low noise level and smart urban-style design and coloring. ! Superb operating performance provided by powerful engine and high-performance hydraulic pumps. ! Low fuel consumption controlled by an electronic control system provides an environment-friendly machine. 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: ! After starting, let the engine idle for 5 minutes to allow proper engine warm-up prior to actual operation. ! Avoid operation with heavy loads or at high speeds. ! Avoid sudden starts or acceleration, unnecessarily abrupt stops and sharp steering 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 America International Co.
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 circumstance. 0-4