325D and 329D Excavators Hydraulic System Caterpillar


Hydraulic Tank and Filter

Usage:

325D L A3R


图 1g01341123
(19) 回油滤清器
(25) 液压油箱
(34) 滤芯
(35) 回油室
(36) 油箱室
(37) 吸油滤清器
(38) 管路
(39) 吸入管路
(40) 孔口
(41) 安全阀
(42) 油道

液压油冷却器的回油经过孔口 ( 40) 和油道 (42) 流向回油室 ( 35)。

回油滤清器 (19) 由滤芯 ( 34) 和安全阀 (41) 组成。 回油滤清器安装在液压油箱后表面。

回油经过回油滤清器 ( 19) 的滤芯 (34)。 然后,回油经过管路 ( 38) 流向液压油箱 (25 )。 此后,机油流过吸油滤清器 ( 37),并经过吸油管 ( 39) 输送至泵。



图 2g01341124
(43) 通风装置

通风装置 (43) 位于液压油箱上表面。 通风装置可防止液压油箱中空气压力升高或降低,并且不受以下环境影响:

  • 由于油缸移动引起液压油箱中的空气压力变化。

  • 由于温度变化引起液压油箱中的空气压力变化。

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