Remote Direction Control
系统运作描述:
方向开关的大多数故障将导致机器保持在空档位置。 当故障是由开关和换挡器间的线束造成的，空档灯将熄灭。 变速箱可正确换挡，但指示灯不工作。
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| 图 1 | g00853046 |
测试步骤 1. 检查各部件信号是否正确。
用示意图检查信号。
如果信号不正确，确认没有出现线束损坏。
结果:
- 正常 - 线束正常。
修复: 更换出故障的部件。 如果所有信号正确但灯不亮，更换灯组件。
停止
测试步骤 2. 检查方向控制是否正常工作。
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| 位置 | G787 | P916 | G788 |
| 前进 | X | O | O |
| 后退 | O | O | X |
| 空档 | O | X | O |
注: X 表示与接地连通。
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| 开关位置 | |||
| 针 | F | N | R |
| 1 | G | O | O |
| 2 | O | O | G |
| 3 | O | G | O |
注: G 表示有关针 4 的接地（连续性）。 O 表示有关针 4 的开路。
按照上表。
结果:
- 异常 - 开关未能正常检查。
修复: 更换开关。
停止
Caterpillar Information System:
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2002/01/21 Changes to the Rear Spindle and to the Bearing Cone {4208, 4234, 7551}
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