Dec. 25, 2024
Please don't operate the crane under the following conditions:
1. Abnormal noises are observed in the crane, its safety mechanisms, or braking systems.
2. The state or weight of the load is unknown, or if the load exceeds the crane's capacity.
3. The sling is damaged or does not meet safety standards.
4. The load is unbalanced or loosely secured.
5. The load has sharp edges and lacks protective padding.
6. Uneven pulling occurs, or the crane is used to hold workpieces for convenience during processing.
7. The load includes electrically charged or buried objects.
8. Hazardous chemicals are involved without proper safety precautions.
9. There are people or unsecured items on the load.
10. There is no designated guide, the guiding signals are unclear, or the operator has poor visibility.
Please don't operate the crane under the following conditions:
1. The lifted object may collide with other objects.
2. People remain in unsafe zones during lifting.
3. Workpieces are hung solely for convenience during processing.
4. The hook lacks an anti-slip device, or the load is prone to slipping off the hook.
5. Two or more steel plates are lifted simultaneously using clamps.
6. The lifting beam is raised more than 1.5 meters off the ground without ropes secured at both ends.
7. Chains, wire ropes, or steel plates are pulled from under the load, risking the load overturning.
8. Hooks, clamps, ropes, or chains are left attached to the load.
9. There are people working or standing beneath the crane.
10. Operations take place during thunderstorms or when winds exceed level 6.
Please don't operate the crane under the following conditions:
1. Ropes, clips, or chains are on the hook without assistance or supervision.
2. People, objects, or electrical wires are located near the track.
3. The warning bell is not functioning, does not ring, or people remain in the area after the bell sounds.
4. There is a risk of collision with other cranes or objects.
5. Visibility is poor due to rain or fog.
Please report the following situations:
1. Cracking of the ladder rail welds.
2. Broken glass.
3. Deterioration of insulation boards or electrical leakage.
4. Improper parking of the crane due to power failure or crane damage.
5. Any violations of regulations.
Safety Operation Rules for Crane Drivers
1. Certification and Training: Crane operators are considered specialized personnel. They must undergo professional safety and technical training, pass the required examinations, and obtain the Special Equipment Safety Operation Certificate. Operators should also be familiar with national standard command signals.
2. Pre-Operation Checks: Before operating the crane, operators must thoroughly inspect the machinery, electrical appliances, control systems, safety devices, signal devices, and fire extinguishers. They must confirm that interlocks and limit devices are functioning correctly and record the results in the shift record book.
3. Safe Passage and Focused Operation: Operators should use designated safe passages and platforms when entering and exiting the crane. Operators must remain focused during operation and refrain from engaging in distractions (such as using mobile phones or chatting). The crane should sound the bell before starting, hoisting, placing objects, signaling for clearance, or alerting others.
4. Signal Compliance: Operators must act only on clear and accurate command signals from the lifting commander. If the command signal is unclear, the operator should use the bell to request clarification before proceeding with the operation.
5. Test Lifting: When lifting heavy objects, a test lift should be performed by lifting the load 30 cm off the ground or support. The operator must ensure the slings, load, and crane are stable, and that there are no abnormalities or unusual noises before proceeding with the full lift.
6. Refusal of Unauthorized Commands: In cases of conflicting or unauthorized commands, the operator has the right to refuse to carry out the operation.
7. Slinging and Lifting Precautions: Operators must carefully observe the slings and load while lifting, avoiding sharp edges, corners, and openings to prevent sling damage and accidents. For cranes with main and auxiliary hooks, the unused hook should be raised to the top during operation. It is strictly prohibited to lift two loads simultaneously with two hooks or to operate three handles or buttons at once.
8. Avoiding Dangerous Areas: The crane should not be operated when personnel are within a dangerous area. When the hook nears the lifting limiter or when the crane or trolley is approaching the end of its track or other cranes, the operator must slow down and use jog operations. Reverse operation should not substitute for the brake operation, and the limiter should not replace the parking function. Objects should not be left suspended for prolonged periods.
9. Power Failure Protocol: In the event of a power failure, the operator must return the switch handle to the "zero" position and avoid lowering the load or unhooking the sling. The operator should not leave the crane cab. If power is not restored quickly, appropriate measures (such as manually releasing the lifting brake) should be taken to lower the load safely.
10. Brake Failure Protocol: If the brake fails and the load begins to descend, the operator should remain calm. A warning should be given to allow personnel to move to a safe distance, and reverse jog should be used to move the load to an empty space. The operator should then slowly lower the load to the ground.
11. Adverse Weather Conditions: In case of heavy rain, lightning, dense fog, or winds exceeding level 6, the operator must implement the relevant emergency procedures. Operations should cease, power should be cut off, the rail clamp should be applied, iron shoes should be inserted, and the anchoring device should be engaged.
12. Post-Operation Procedure: After completing the work, the crane should be positioned as required. The hook should be raised, the trolley should be moved to the end, and all control handles should be returned to the "zero" position, cutting off the power supply. For outdoor cranes, the rail clamp should be applied, iron shoes should be inserted, and the anchor should be engaged.
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