The working principle of the lift is mainly achieved by the pruning structure, in which the pin is the most used parts of the lift, and it is also easier to damage the parts. So, the shaft pin replacement is more important, need to observe the use of the process in a timely manner, and do regular filling grease.
     When inspecting and replacing the lift pin, check the wear of the wear sleeve. If the wear exceeds 80%, it should be replaced.
     Lift wear-resistant sets of replacement, the best replacement by the regular manufacturers, because the precision of the positioning of wear-resistant sets, a direct impact on the lift of the amount of deflection.

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