1、装载机本身其中的一个液压锁在没有更换油封之前就有点问题，桅杆左调时没有向右调整时灵活，所以就对这两个液压锁的压力进行了调整，使两个压力保持相同。

Shandong loading machine itself one of the hydraulic lock in before does not replace oil seal is a bit of a problem, agile in mast left no adjustment to the right, so to lock the two hydraulic pressure were adjusted the two pressure remains the same.

2、装载机要换油封，那油缸的油管总得拆卸。这一拆一装在管路中就形成了气阻，有些时候液压压力受气阻影响不能打开油缸上部的液压锁，形成不了液压回路，肯定不能下调了。

Shandong loader for oil seal, the cylinder tubing must remove. The demolition of a mounted in the pipeline on the formation of the air resistance, sometimes hydraulic pressure suffer indignities resistance effects cannot open the upper part of the oil cylinder of the hydraulic lock, can not form a hydraulic circuit, certainly not cut.