WARNING: Failure to follow these safety precautions may lead to a serious accident. SAFETY 7.6 BUCKET WITH HOOK This machine is not designed to be used as a crane, so crane operations are prohibited. However, the following work is possible using the bucket with hook. ! Trench timbering work ! Cases where the nature of work requires it or when it is necessary for ensuring safe operation. The swing speed of a hydraulic excavator is 3 to 4 times that of a mobile crane. When swinging with a raised load, adjust the swing speed so that the machine does not tip over. Lifting operations with a hydraulic excavator are permitted if they fulfill the following special conditions.
Always follow these conditions. ! The specified special hook is installed to the bucket. For details, please contact your distributor. ! The following operations are prohibited. " Lifting loads with a wire rope fitted around the bucket teeth or wrapped directly around the boom or arm. ! 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 deformations in the lifting equipment and that there is no abnormality in the stopper device. !
If the special hook is installed, there are extra items for the check before starting and periodic inspection, and the recording and storage of the periodic self-inspection is required. ! When carrying out work with a lifted load, set the machine on firm, flat ground and install the wire rope securely to the special lifting hook. ! Lifting operations are prohibited except for the main purpose. Never use the work equipment to lift people. ! People are not allowed within the operating radius. ! When carrying out lifting operations, decide a leader for the operation and the method of operation, procedure, and signs, and follow the directions from the leader. !
Wear leather gloves when handling the wire rope, and do not use any wire rope that does not fulfill the specified standards. ! When carrying out lifting operations, reduce the engine speed and operate slowly. Do not leave the operators seat when there is a raised load. ! It is dangerous to carry out operations that exceed the performance of the machine or to pull the load to the side or in towards the machine. ! Do not travel with a raised load. ! Depending on the operating posture of the machine, there is danger that the wire rope or lifting ring may come off, so be extremely careful to maintain the hook at an angle where the wire rope or ring do not come off.
1-23 PROHIBITED OPERATIONS PRECAUTIONS WHEN INSTALLING AND OPERATING BUCKET WITH HOOK