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


Oil Step 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

机油步位转速标定增加机油步位转速设定值,或机油步位转速标定减少机油步位转速设定值。 请参阅转速技术规格图,找到发动机运转时,与发动机转速相等的机油步位转速。

  1. 从密封螺塞 (6) 上拆下安全锁线和密封圈。 从机油步位转速调整螺钉的检修孔上拆下密封螺塞 (6) 。

  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机油步位转速调整螺钉。 将螺钉转动二十次。 机油步位转速调整螺钉可改变 ESS 内的电位计设定值。 机油步位转速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. 将电压表的正极引线与端子(ESS-13)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。 测量电压。

  1. 对于特定的发动机额定值,在转速技术规格图中机油步位转速设定值一栏找到发动机转速。 使发动机以表中指定的转速运转。

  1. 发动机运转时,查看孔以调整机油步位转速。 红色指示灯应亮起。 指示灯亮起 9 秒后,应可在万用表上观察到正极电压。 顺时针转动机油步位转速调整螺钉,直到指示灯熄灭。 机油步位转速设定值高于当前的发动机转速。 逆时针缓慢转动机油步位转速调整螺钉,直到指示灯亮起。 9 秒钟之后,应可在万用表上观察到正极电压。 此位置是机油步位转速设定值的正确设定值。

  1. 在机油步位转速调整螺钉的检修孔中安装密封螺塞 (6) 。 将螺钉拧紧至 0.20 ± 0.03 N·m (1.8 ± .3 lb in) 的扭矩。 如果超速标定和盘机终止转速标定也完成,则安装安全锁线和密封圈。

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