3412E and C30 Marine Engines Caterpillar


Alternator Belt - Inspect/Adjust/Replace

Usage:

3412E 9KS

检查

为获得发动机的最高性能,应检查传动皮带是否磨损和断裂。 检查皮带张紧力。 调整传动皮带的张紧度以便使皮带打滑最低化。 皮带打滑将降低传动皮带的使用寿命。

在两皮带轮之间的中部施加110 N (25 lb) 的力,以检查皮带的张紧度. 调整正确的皮带将下垂13至19 mm (0.50至0.75英寸)。

调整




图 1g00122875

(1) 调整螺母

(2) 固定螺栓

  1. 拆下传动皮带护罩。

  1. 松开固定螺栓 (2) 和调整螺母 (1) 。

  1. 转动调整螺母 (1) 来增加或减小皮带张紧度。

  1. 拧紧调整螺母 (1) 。 拧紧固定螺栓 (2). 更多有关正确扭矩的资料,请参阅技术规格, SENR3130, "扭矩技术规格"。

  1. 重新安装传动皮带护罩。

如果安装了新皮带的话,应在发动机在额定转速运转30分钟之后再次检查皮带张紧度。

更换

对于需要多根传动皮带的应用,要更换相配的整组传动皮带。 只更换一组中的一条皮带,由于旧皮带已被拉伸,会使新皮带承受更多的负载。 额外负荷就会加到新皮带上,从而造成皮带断裂。

有关下列主题的步骤的更多资料,参见维修手册。 拆卸皮带 和 皮带安装.

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