559C and 579C Knuckleboom Loaders Caterpillar


Hydraulic Tank and Filter

Usage:

559C KAS

液压油箱




图 1g03267823

液压油箱

(1) 液压油箱

(2) 液压油油位表




图 2g03332745

液压油箱卸压按钮检修孔的位置

(3) 液压油箱卸压按钮

液压油箱 (1) 位于机器后面的右手侧上。 液压油箱目测表处的注油容量为 305.5 L (80 US gal)。

储液罐通过热膨胀和/或任一油缸的回缩进行加压。 油箱的过滤呼吸器配备有一个 34 kPa (5 psi) 安全阀。 执行液压系统的所有保养作业之前,先释放所有油箱压力。 通过按下液压油箱护罩顶部的卸压按钮释放油箱中的压力,直至嘶嘶噪音消失。

液压油加注泵(电动)




图 3g03268216

(1) 电动加注泵

(2) 吸油软管

电动加注泵 (1) 位于机器右后侧。 电动机油加注泵通过加注泵段软管 (2) 输油,然后通过回油滤清器流入液压油箱 (1) 。 吸油软管 (2) 存放在装置的甲板下面。 加注泵 (1) 是一个齿轮泵,每转排量为 5.3 cc (0.323 cubic in)。 泵在 690 kPa (100 psi) 时的输油量为 13.25 L (3.5 US gal)。 泵上的旁通安全阀压力设为 2068 ± 345 kPa (300 ± 50 psi)。 加注泵由 24 伏直流电电机供电。 电机受位于泵壳体侧上的 105 amp 断路器保护。

滤清器

此系统包含先导油, 箱体排油 和 液压回油的滤清器。 这些滤清器

先导油和箱体排油滤清器




图 4g03275436

(1) 先导油滤清器




图 5g03275437

(2) 箱体排油滤清器

先导排油和回转马达箱体排油合流到先导岐管的回油侧。 先导回油管从那里引至箱体排油滤清器。 从下液压系统流出的排油和从泵中流出的箱体排油合流入此管。 先导/箱体排油从箱体排油滤清器流至液压油箱。 更换滤清器滤芯时,单向阀可防止油箱中的机油排出。

箱体排油滤清器 (2) 旋装滤芯式滤清器。 滤清器有一个 172 kPa (25 psi) 旁通阀内置在安装底座中。 底座中的发送器连接至仪表板上的"滤清器"警告灯。

回油滤清器




图 6g03275439

回油滤清器 (3) 安装在储油罐的上检查盖中。 滤清器配备有一个 275 kPa (40 psi) 旁通阀。 发送器连接至 ECM。 ECM 随后向仪表板警告灯发送一信号,通知操作员旁通了其中一个滤清器。

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