3500C Marine Engines Caterpillar


Alternator Mounting

Usage:

3512C 2A2


图 1g03483008

表 1
技术规格 - 376-4005 交流发电机安装件总成和 432-2785 交流发电机安装件总成 
项目  数量  零件  技术规格说明 
拧紧皮带轮固定螺母至扭矩 110 ± 10 N·m (81 ± 7 lb ft)。 
2J-3506 全高螺母  拧紧至扭矩为 200 ± 20 N·m (148 ± 15 lb ft)。 
141-7116 蛇形皮带  按照 197-9087 张紧度表调整蛇形皮带的皮带张紧度。 
7E-4839 皮带轮  皮带轮组件 (5) 和皮带轮 (4) 之间的最大未对齐程度不应超过 0.4 度。 
300-8570 皮带轮组件 
235-2484 唇形密封  使用润滑剂稍微润滑即将密封的唇形密封的密封唇。 

197-9087 皮带张紧度表

表 2
技术规格 - 197-9087 皮带张紧度表 
皮带尺寸  皮带宽度  仪表读数  量规(力)  皮带张紧度(频率)
“初始”(1) 
皮带张紧度(频率)
“已使用的”(2)(3) 
量规(频率)  
皮带张紧度(力)
“初始”
(1)
皮带张紧度(力)
“已使用的”
(2)(3)
基本标号  标号 
8 - 肋
聚乙烯 - 肋 
27.82 mm (1.095 inch)  800 ± 22 N (180 ± 5 lb)  489 ± 44 N (110 ± 10 lb)  BT-33-109  98 ± 10 HZ  76 ± 8 HZ  Clavis 14 型 
具有弹簧加载的张紧器的皮带不能使用皮带张紧度表。 
测量离发动机最远的那根皮带的张紧度。 
(1) 皮带张紧度的“初始值”适用于新的皮带。
(2) “已使用的” 皮带张紧度针对的是已在额定转速使用了 30 分钟或更长时间的皮带。
(3) 如果皮带的张紧度降落到低于“已使用的”皮带的皮带张紧度,应将皮带再次绷紧到“已使用的” 皮带的张紧度范围的高侧值。

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