叉车门架自动前倾是维修中经常遇到的故障，其原因有两个：一是多路换向阀磨损严重，产生内漏或滑阀不在中立位置；二是倾斜缸密封圈磨损或损坏造成内漏，如何快速确认并修复由于倾斜缸内漏而引发的门架自动前倾的故障，我们的经验是： １．判断故障 将门架置于垂直位置、操纵 Forklift mast automatic forward tilting is often encountered in the maintenance of the fault for two reasons: First, the multi-way valve wear serious internal leakage or slide valve is not in neutral position; Second, the inclined cylinder seal wear or damage Resulting in internal leakage, how to quickly confirm and repair tilt due to internal leakage caused by the gantry automatically forward fault, our experience is: Determine the fault will be placed in the vertical position mast, manipulation