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1. The plane of car door and landing door not synchronization
A:(1)Check whether alignment in the car door and landing door, in figure


The side open (with the beyond)

(2)Check around adjust door roller position, in figure


2. Door plane of jitter, artificial stimulating landing door and car door resistance is too large, landing door cannot be autistic

A:(1)Check the distance of bottom roller and rail,the most suitable position open or close the door bottom roller can rotate together,Stay hand pinch bottom roller can easily make the bottom roller doesn't turn but can open or close.Distance is too small resistance is too big, too far door plane will shake.
  (2)Check the both sides of the distance of guide shoes in the sill, ensure the consistence. Tight resistance is too big, too loose door plane will shake.