Komatsu — Komatsu PC450LC-6 Hydraulic Excavator Operation & Maintenance Manual (EN)

WARNING: For reasons of safety, always follow these safety precautions. 7. PRECAUTIONS DURING OPERATION 7.6 BUCKET WITH HOOK 7.6.1 GENERAL PRECAUTIONS SPECIAL HOOK When carrying out lifting work, the special lifting hook is nec- essary. The following operations are prohibited. ° Lifting loads with a wire rope fitted around the bucket teeth. ° Lifting loads with the wire rope wrapped directly around the boom or arm. GEFAHR PC450-ENG 1-18 CHECKING HOOK • When lifting a load, carry out the following checks to confirm that there is no abnormality before starting operations. ° Check that there are no cracks or deformation in the lifting equipment.

° Check that there is no abnormality in the stopper device. HOOKING WIRE ROPE SECURELY TO HOOK • When performing lifting operation, securely hook the wire rope onto the special lifting hook. HOOKING WIRE ROPE SECURELY TO HOOK PRECAUTIONS FOR MACHINE INSTALLATION • After carrying out a preliminary inspection of ground conditions, select a flat, solid location. Confirm that the machine can be safely operated without toppling or rolling. PROHIBITED OPERATIONS OTHER THAN MAIN APPLICATIONS • When performing lifting operation, never raise or lower a person.

PROHIBITED OPERATIONS OTHER THAN MAIN APPLICATIONS NO PERSONS SHALL BE PERMITTED TO ENTER THE WORKING AREA • Due to the possible danger of the load falling or of collision with the load, no persons shall be allowed in the working area. NO PERSONS SHALL BE PERMITTED TO ENTER THE WORKING AREA