3044C Industrial Engine Caterpillar


Alternator and Fan Belts - Inspect/Adjust/Replace

Usage:

3044C 344

检验

为使发动机性能最大化,检查传动皮带是否磨损和断裂。 更换损坏或磨损的皮带。

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。 新皮带上的额外负载,会造成皮带断裂。

如果皮带过松,振动会引起皮带和皮带轮不必要的磨损。 松弛的皮带可能打滑而引起过热。

检查皮带张紧度时,应在两个皮带轮中间的地方施加45 N (10 lb ft)的力。 调整正确的皮带将下垂10 mm (0.39 inch)。

调整




图 1g01264847

典型范例

(1) 安装螺栓

(2) 支架

(3) 皮带

(4) 交流发电机

  1. 拧松固定螺栓 (1) 。

  1. 移动交流发动机 (4) 以增加或降低皮带张紧度。 检查皮带张紧度时,应在两个皮带轮中间的地方施加45 N (10 lb ft)的力。 调整正确的皮带将下垂10 mm (0.39 inch)。

  1. 拧紧安装螺栓 (1) 。

更换

请参阅拆解和组装, "V 型皮带- 拆卸和安装"。

如果装了新皮带,在发动机运转 20 小时后要再次检查皮带的张紧度。

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