Transmission Lubrication Oil Pressure - Test
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机器突然移动，会造成人员伤亡。 机器突然移动，会对机上或机器附近的人员造成伤害。 在处理机器之前，执行以下程序，以防止可能的伤害。 |
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| 注意 |
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当系统存在压力时，请勿将软管接头与快速分离接头连接或断开。 这将防止接头密封件的损坏。 |
确保已经认真阅读并了解了本测试程序。
注: 在您进行任何压力测试之前，确保滤清器和滤网清洁。 执行这些测试前，确保油处于工作温度。
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| 所需工具 | ||
| 零件号 | 说明 | 数量 |
| 1U-5481 | 压力表总成 | 1 |
| 1U-5482 | 压力适配器总成 | 1 |
| 8T-5200 | 发生器和计数器信号总成 | 1 |
| FT-2796 | 接头线束 | 1 |
需要升起车斗才能够到动力传动系的压力测试点。
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| 图 1 | g01336510 |
变速箱俯视图 | |
变速箱行星齿轮的润滑油压力可以在测试点 (1) 处测量得到。
- 升起车斗。 请参阅操作和保养手册, SEBU7837, "车架和车斗 - 检查"。
- 起动发动机。
- 变速箱处于空档位置的情况下，低怠速运行发动机。 记录压力表上显示的压力。
- 高怠速运行发动机，并记录压力表上显示的压力。 油处于工作温度时，变速箱行星齿轮润滑油的压力必须在表 2 中所示的数值范围内。
- 关闭发动机。
- 将软管从测试点 (1) 拆下。
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| 润滑技术参数 | ||
| 位置 | 说明 | 规定值 |
| 1 | 变速箱润滑油（低怠速） | 37 ± 30 kPa (5.3 ± 4.3 psi) |
| 1 | 变速箱润滑油（高怠速） | 189 ± 51 kPa (27.4 ± 7.4 psi) |
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