When lifting heavy machinery, it's important to use the correct procedures to ensure safety. Here's a breakdown of key steps and precautions:

Preparation and Precautions:

• Use Appropriate Equipment: Ensure wire ropes and lifting tools are undamaged, not deteriorated, and of sufficient strength and length 2, 3, 4, 5. Use wire ropes and sling jigs with sufficient length to avoid contact with the machine during lifting 2, 3, 5, 6. When necessary, cover the wire ropes with a cloth or pad to protect the machine body from damage 2, 3, 5, 6.
• Check Specifications: Verify the weight and center of gravity of the machine, as well as the strength of wire ropes and sling jigs 2, 3, 5, 6. Lifting procedures may vary based on attachments and machine options; contact your dealer/distributor for specific cases [1].
• Clear the Area: Evacuate the areas surrounding the machine during lifting, as unexpected movement can occur 2, 3, 4, 5. Keep people away from the area, especially under the machine 2, 3, 4, 5, 7.
• Communication: When lifting as a group, ensure clear signals and communication between all workers 2, 3, 4, 5, 7.
• Avoid Sudden Movements: Be careful not to apply a load suddenly to the wire ropes and lifting tools 2, 3, 4, 5. Avoid sudden swinging, stopping, or lowering of the hook, as this may cause the wire rope to come off or the machine to roll over 8, 9.

Lifting Procedures:

• Prepare the Machine: Move the machine to a level place 10, 11, 12, 13. Fully extend the arm and bucket cylinders, and lower the boom to place the attachment on the ground 10, 11, 12, 13. Align the cab and crawlers in parallel 10, 11, 12, 13.
• Secure the Machine: Move the pilot control shut-off lever to the "LOCKED" position, stop the engine, and pull out the starter key 10, 11, 12, 13. Close and lock all windows, doors, and the engine hood 10, 11, 12, 13.
• Attach Ropes: Pass the wire ropes through the spaces between the first and second lower rollers on both the front and rear sides of the machine 10, 11, 12, 13, 15.
• Lift Gradually: Adjust the sling angle of the wire rope to between 20 and 30 degrees and then lift the machine 10, 11, 12, 13. After the machine leaves the ground, stop the movement, wait until the machine is stabilized, and then slowly lift up the machine 10, 11, 12, 13, 15.

Prohibited Actions:

• Do not lift the machine with a worker on it 2, 3, 4, 5.
• Lifting operation on a slope is prohibited [2].
• Sudden lifting operations are prohibited [2].
• Diagonal dragging operations are prohibited [3].
• Leaving the seat while suspending a load is prohibited [3].

Remember to consult the specific operation manual for your machine model for detailed instructions and safety guidelines 2, 3, 4, 5.