Bank Valve (Backhoe) - Pilot Operated
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| 图 1 | g03730731 |
带六个阀组的反铲控制阀 (1) 进气歧管 (2) 辅助装置（如有配备） (3) 可伸缩斗杆控制阀（如有配备） (4) 斗杆控制阀 (5) 铲斗控制阀 (6) 回转控制阀 (7) 动臂控制阀 (8) 出口歧管 (LS) 负载感应端口 (S) 泵供油口 (T) 油箱（回油）端口 | |
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| 图 2 | g03811609 |
反铲阀总成由四个、五个或六个控制阀组成。 机器可配置用于 E 形斗杆的第五个阀和用于辅助功能的第六个阀。
各控制回路中的压力补偿器产生一个负载感应（LS）信号压力。 单个控制阀中的供油转移到控制阀中的信号管。 在反铲总成中的所有压力补偿器处可感测到最高 LS 信号。 还可在泵控制阀处感测到此 LS 压力。
阀的端口朝向机器后部。
阀组（反铲控制）位于操作台后部处的地板下面。 该阀安装在后机架上。
除可伸缩斗杆和辅助阀外的所有控制阀通过先导管路与操纵手柄相连。 可伸缩斗杆和辅助功能采用电动液压控制。 所有控制阀段均为具有闭心位置的类型。
Caterpillar Information System:
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