Air Control Valve (Retarder)
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| 图 1 | g00672284 |
减速器空气控制阀的位置 | |
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| 图 2 | g00497252 |
(1) 出气口 (2) 排气口 (3) 供气口 | |
减速器空气控制阀是一个手动操作的控制阀。 当操作员需要机器减速时，减速器空气控制阀可提供经过调节的气源，以接合行车制动器。 来自主储气罐的气源流进供气口 (3) 中。 当减速器手动操纵杆移离 OFF 位置时，减速器空气控制阀允许空气从供气口 (3) 流至出气口 (1) 。 减速器手动操纵杆允许控制阀对流至制动器空气中继阀的出口压力进行调节。
当减速器手动操纵杆处于 OFF 位置时，供气口 (3) 处的系统气压被阻止进入出气口 (1) 。 当减速器手动操纵杆释放后，气压将通过排放口 (2) 排出。
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