1、裝載機本身其中的一個液壓鎖在沒有更換油封之前就有點問題，桅桿左調時沒有向右調整時靈活，所以就對這兩個液壓鎖的壓力進行了調整，使兩個壓力保持相同。

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、裝載機要換油封，那油缸的油管總得拆卸。這一拆一裝在管路中就形成了氣阻，有些時候液壓壓力受氣阻影響不能打開油缸上部的液壓鎖，形成不了液壓回路，肯定不能下調了。

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.