Batteries Test Description
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图 1 | g01276069 |
本测试测量蓄电池的接线柱电压。 测量测试点 (1) 和测试点 (7) 两端的电压。
进行"测试设置 A,连接"时的电压降将使蓄电池指示灯点亮。 电压降必须低于 23.10 ± 0.15 伏。 指示灯点亮指示电量低状态。
蓄电池没有充足的电量以在此条件下起动发动机。 所有测试步骤中的故障均会指示。
该故障可能的原因如下:
- 无交流发电机输出
- 磨损的蓄电池无法保持电量
- 当机器关闭时,灯保持点亮。
当发动机起动时,蓄电池电压会降至 23.1 伏以下,这是正常的。 当发生这种情况时,该灯将点亮。 如果蓄电池电压低于 12.50 ± 0.15 伏,蓄电池将短时间起动发动机。 该灯将关闭,以指示电压过低。
该故障可能的原因如下:
- 蓄电池电压低
- 起动马达有故障
- 发动机拉扯或摩擦过度
为了查找导致问题的故障,检查交流发电机。
跨接起动马达器以检查交流发电机的输出。 有关更多信息,请参阅系统操作, "测试步骤 D,高怠速"部分的测试说明。
如果交流发电机工作正常,检查蓄电池。 如有必要,对蓄电池充电。 有关更多信息,请参阅专门说明, SEHS7633, "蓄电池测试步骤"。
注: 请参阅 OMM 中用增压器和起动马达电缆跨接起动发动机的章节。
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