Electric Protection System Energize-To-Run For Generator Set, Industrial and Marine Diesel Engines Caterpillar


Crank Terminate Speed Calibration

Usage:

3304 10E



图 1g00564355

7W-2743 电子转速开关(ESS)

(1) 超速确认按钮

(2) 复位按钮

(3) 超速指示灯

(4) 密封螺塞以调整发动机转速

(5) 密封螺塞以调整盘机终止转速

(6) 密封螺塞以调整机油步位压力转速设定值

盘机终止调整标定可提高盘机终止转速,或盘机终止调整标定可降低盘机终止转速。 盘机终止转速确定何时断开起动马达。 盘机终止转速消除系统电压时,起动马达断开。 盘机终止转速下,发动机必须能够在无需起动马达辅助的情况下运转。

  1. 从密封螺塞 (5) 上拆下安全锁线和密封圈。 从盘机终止调整螺钉的检修孔上拆下密封螺塞 (5) 。

  1. 使用小螺丝刀以 "MAX(最大值)"箭头方向或顺时针方向轻轻地转动盘机终止调整螺钉。 将螺钉转动二十次。 盘机终止调整螺钉可改变 ESS 内的电位计设定值。 盘机终止调整螺钉不会导致电位计损坏。 而且,如果螺钉以错误的方向转动,则无法拆下螺钉。

  1. 以与 "MAX(最大值)"箭头相反的方向或逆时针方向转动盘机终止调整螺钉十二圈。 这将建立近似的盘机终止设定值。

  1. 将电压表的正极引线与端子(ESS-12)相连接,负极导线与端子(ESS-5)相连接。 使用 6V-7070 数字万用表 或具有相同精度的电压表。 起动发动机。 记录起动马达断开时的发动机转速。 盘机终止设定值消除开路电压时,起动马达断开。 请参阅转速技术规格图,了解正确的盘机终止设定值。

  1. 如果步骤 4中的设定值不正确,继续进行步骤 6、7 和 8。 如果设定值正确,执行步骤 8。

  1. 停止发动机并以顺时针方向转动盘机终止调整螺钉一整圈,以提高盘机终止转速。 以逆时针方向转动盘机终止调整螺钉一整圈,以降低盘机终止转速。

  1. 电压表仍连接时,起动发动机。 记录起动马达断开时的发动机转速。 盘机终止转速消除电压时,起动马达将断开。 重复步骤 6 和 7,直到盘机终止转速正确。

  1. 在盘机终止调整螺钉的检修孔上安装密封螺塞 (5) 。 将螺钉拧紧至 0.20 ± 0.03 N·m (1.8 ± .3 lb in) 的扭矩。 如果超速标定和机油步位转速标定也完成,则安装安全锁线和密封圈。

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