First, gently lift the safety wire rope with your hand, so that you can move more slowly.Turn the lock handle once, do not turn the open handle once, it can be done.Several times in a row.
Second,pull the safety wire rope upward at a fast and fierce speed. The safety lock can be locked. Twist the open handle once for several times consecutively.
The safety lock must be used within the limit of the exit qualification certificate.If the safety lock appears abnormal, it should be sent to the manufacturer for maintenance, and the customer is prohibited to disassemble and maintain.
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