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To carry out nationwide investigation and rectification of hidden dangers of elevator accidents in use, what should maintenance units do?

2024-05-14

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To carry out nationwide investigation and rectification of hidden dangers of elevator accidents in use, what should maintenance units do?

On October 25, the State Administration for Market Regulation issued the ''Notice of the State Administration for Market Regulation on Further Promoting Elevator Safety Bottom-building Actions to Carry out Elevator Accident Hazard Investigation and Remediation "(click for details). Carry out investigation and rectification of hidden dangers of elevator accidents in use, and resolutely prevent the recurrence of larger elevator accidents similar to the" 10.18 "in Maitreya City, Honghe Prefecture, Yunnan Province.

So the elevator accident hidden danger investigation and rectification process maintenance policy needs to do what work content?

● Work content of elevator maintenance unit

• Earnestly do the original maintenance project

• One additional maintenance for some parts

• Speed governor-safety gear linkage test

• Keep witness materials such as photos or videos for future reference

• Timely upload and report to local market supervision department

Assist elevator users to do a good job of self-examination and self-correction

What should I do with 1. additional maintenance projects?

01 Reverse rope wheel
 
• Anti-off groove device (fixed reliably and in proper position)
• Bearing (no abnormal sound, no vibration, good lubrication, no waste oil accumulation)
• Fixed parts (fastening)
Note: Car bottom reverse rope wheel
02 Guide Rail
 
The guide rail is clean, the pressing plate is firm, and the working surface is smooth and free of burrs.
• Guide rail bracket fixed without looseness
03 Speed limiter
 
• All regulating parts shall be sealed and recorded in good condition, and there shall be no phenomena such as rubbing, blocking and inflexible rotation during operation, and the operation shall be normal.
• Electrical safety devices operate normally
The wheel groove, wire rope and all parts are clean and free from serious greasy.
• Action speed calibration cycle and results meet the requirements
• The amount of wire rope wear and the number of broken wires shall not exceed the requirements of the manufacturer.
04 Safety Clamp
 
• No abnormal noise
• Clamp base fixed without looseness
• Electrical safety devices operate normally
• The lateral clearance between the wedge and the guide rail meets the requirements

2. speed limiter-safety gear linkage test

For traction-driven passenger elevators with a rated load of 1600kg or more and traction-driven cargo elevators with a rated load of 3000kg or more, the rated load shall be loaded in the car, and the speed limiter-safety gear linkage test shall be carried out at the maintenance speed.
• Other elevator no-load

3. assist elevator users to do a good job of self-examination and self-improvement

• Remind the elevator users for the freight elevator (including non-commercial car elevator) should be in accordance with the requirements of the relevant national standards to clarify the main purpose, and take effective measures to ensure that in place
• Remind elevator users in public gathering places to divert passenger flow in time and guide passengers to take elevators safely during peak passenger flow hours

4. to retain witness materials such as photos or videos

• Upload market supervision department designated system
• Special supervision and inspection from November to December 2023

• Inspection of witness materials during the regular inspection and self-inspection in 2024

Article Source: China Special Equipment Safety and Energy Conservation Promotion

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Keywords:

AVIC Elevator Equipment, AVIC Elevator, Elevator Sales, AVIC Elevator Sales, Elevator Maintenance