Oil Makeup (Travel System)
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| 图 1 | g01462207 |
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机油补充操作 (1) 马达旋转总成 (2) 左行驶马达 (3) 油道 (4) 单向阀 (5) 管路 (6) 回转接头 (7) 管路 (8) 油道 (9) 左行驶控制阀 (10) 油道 (11) 回油通道 | |
从行驶控制阀流出的液压油箱机油作为补充机油使用，以防止停止操作时行驶马达中产生真空状态。
左行驶时提供机油补充操作。 右行驶的机油补充操作完全相同。
如果左行驶控制杆调回 NEUTRAL（空档）位置，以停止左行驶，向左行驶马达 ( 2) 的输送的泵油在油道 ( 10) 被阻断。 由于机器处于运行中，所以左行驶马达继续旋转。 马达旋转总成 (1) 的油道 ( 3) 的反向油压打开单向阀 ( 4)。
左行驶控制阀 (9) 处于 NEUTRAL（空档）位置，油道 ( 8) 将油道 (11) 与管路 ( 7) 相连接。 从液压油箱流出的机油经过油道 ( 11)、油道 (8) 和管路 ( 7) 流入回转接头 (6)。 然后，机油经过管路 ( 5)、单向阀 (4) 和油道 ( 3) 流入马达旋转总成 ( 1)。 补给油消除了行驶马达中形成气穴的可能性。
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