422E, 428E, 432E, 434E, 442E and 444E Backhoe Loaders Hydraulic and Steering System Caterpillar


Sideshift Slide Lock Circuit - If Equipped

Usage:

422E DSK
参考系统操作和保养, "侧移控制"了解侧移控制的操作。


图 1g01279576

(10) 侧移操作的开关位置




图 2g01625840

液压侧移

(11) 侧移的锁耳

(12) 侧移操作的开关




图 3g01231044

滑块锁定活塞的位置

(4) 滑块锁定活塞




图 4g01279611

此为 422E 和 428E 上侧移滑块锁定阀的锁定位置。

(1) 泵油道

(2) 侧移滑块锁定电磁阀

(3) 线路

(4) 滑块锁定活塞

(5) 滑轨

(6) 滑杆

(7) 液压油箱

(8) 反铲阀的进口歧管(侧移)

(9) 单向阀

锁定位置

侧移滑块锁定电磁阀 (2) 安装在反铲阀 (8) 的进口歧管上。 电磁阀 (2) 由侧移锁定开关 (10) 控制。 必须按下开关(10)的底部。 对于液压侧移机器,侧移操作开关(12)上的侧移锁耳不要按下。 两台机器的电磁阀(2)在此位置均断开。

来自液压泵通道 (1) 的机油导致单向阀 (9) 离座。 当单向阀 (9) 移动时,管路 (1) 中的机油流过单向阀。 机油进入管路 (3) 然后流入滑块锁定活塞 (4) 。

活塞 (4) 克服稳定器机架的滑轨 (5) 移向右边。 挖掘操作期间,当活塞强制滑轨接触滑杆 (6) 时,这将防止滑架移动。 当使用机具或转向系统时,滑块锁定活塞的压力变为系统压力。

解锁位置

当反铲需要重新定位时,必须释放滑块锁定活塞 (4) 上的压力。 对于机械侧移机器,必须按下开关(10)的顶部。 对于液压侧移机器,按下侧移操作开关(12)上的侧移锁耳(11)。 两台机器的电磁阀(2)接通。

当电磁阀接通时,电磁阀允许管路 (3) 中的机油排放至液压油箱 (7) 。 管路 (1) 中的大部分压力油堵在单向阀 (9) 前部的节流孔处。 单向阀中的节流孔允许一小部分机油流过单向阀到达电磁阀 (2) 。 然后油流回液压油箱。

管路(3)中的油通过电磁阀(2)自由流回油箱。

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