Tachometer (Vibratory) - Calibrate
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| 所需工具 | ||
| 零件号 | 说明 | 数量 |
| 133-9905 | 频率计 | 1 |
| 133-0963 | 钢轮振动转速表 | 1 |
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| 注意 |
|---|
为避免在测试中损坏振动系统，进行测试时始终将振动钢轮置于轮胎的顶部或松土上。轮胎可以模拟未压实的土壤条件。 当机器处于混凝土上时，严禁操作振动系统。 |
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| 注意 |
|---|
当需要的测试时间长于三 (3) 分钟时，周期性旋转钢轮以润滑偏心配重轴的轴承。 |
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| 图 1 | g00769151 |
控制台 (1) 推进操纵杆（顶部的振动起动/关闭控制） (2) 振幅控制器 | |
注: 液压油温度应当至少为 38°C (100°F)。
- 确保已接合驻车制动器。 确认推进操纵杆处于空档位置。
- 将振幅控制 (2) 移到高振幅位置。
- 起动发动机。 以高怠速运转发动机。
- 将控制台上的振动起动/关闭控制 (1) 按到 ON 位置。 从可选 VPM 表 (3) 上读取每分钟的振动次数（VPM）。
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| 图 2 | g00848002 |
转向控制台 (3) 振动转速表 | |
- 从 133-0963 钢轮振动转速计 (4) 或 133-9905 频率计 上读取 VPM。 将这些数值与可选 VPM 表 (3) 上的读数进行比较。
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| 图 3 | g00458216 |
- 如果数值不相等，则必须标定 VPM 表 (3) 。
- 将大刻度盘 (4) 设定到 8。
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| 图 4 | g00769154 |
(4) 刻度盘 (5) 标定螺钉 | |
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