Common cause of the accident chain hoists summary

Common specifications are  wire rope winch   (0.5t \ 1t \ 2t \ 3t \ 5t \ 10t) six kinds , use, encounter accidents and other dangerous falling objects reasons summarized below want users to abide by the rules in order to ensure the hand pull gourd safe to use.

1 chain hoists lifting weights over from the weight of the provisions ;
2 lifting workers are still working under heavy walking ;
3 Pull the handle pull hoist too high or too low ;
4 horizontal pull the chain hoists or stayed ;
5 on the use of chain hoists lifting chain when bent or kinked still use ;
6 simultaneously with more than one chain hoists lifting a heavy object ;
7 found lifting hand chain pull them , yank or additional personnel ;
8 tossing hoists ;
9 hoists main force component corrosion , cracks, lack of strength or significant plastic deformation ;
10 wire rope or tie optional low base connection method is not correct, then do not tie securely ;
11 wire rope for wear or corrosion ;
12 Main load-bearing parts of the structure is not strong ;
13 lifting weight of ≥ main load-bearing parts of the limit.
Chain hoists performance mutations cause of the accident :
1 opponents pull hoist performance principles ,load chain institutions are not familiar with easily removable ;
2 Install chain hoist brake , the installation is not reliable ;
3 have not been unloaded after maintenance , overloading test that is put into use ;
4 friction surface of the brake oil ;
5 long chain hoists work load ;
6 complex work environment , rubs increase the weight ;
7 used without opponents pull hoist for safe performance measurement ;
8 Use chain hoists can not concentrate , resulting in cards chain , tripping , kink ;
9 Use yank bracelet, mechanical damage ;
10 Rear routine maintenance after use , improper storage .
Personal injury accident consequences chain hoists , equipment, facilities damaged danger dangerous class II level critical preventive measures
1 work should concentrate , to observe , to rational operator ;
2 before each use to make the necessary checks ;
3 chain hoists are complete and secure ;
4 seriously study the working principle of chain hoists and handling precautions ;
5 using chain hoists lifting when setting the necessary precautions around ;
6 immediately after use equipment maintenance , stored in a dry place to prevent moisture rust and corrosion ;
7 do not know who banned performance manual hoist  free disassembly ;
8 brake friction surfaces must be kept clean ;
9 carefully read the instructions for use .