3500B Engines for Caterpillar Built Power Modules Caterpillar


Gear Group (Front)

Usage:

793B 1HL


图 1g03325358
发动机前视图

表 1
技术规格 - 8N-7174 前齿轮总成 
项目  数量  零件  技术规格说明 
7N-5245 泵过渡接头  安装后, 127-5400 衬套的孔径为 75.000 ± 0.055 mm (2.9528 ± 0.0022 inch)。 
144-8263 惰轮组件  安装后, 140-9597 衬套的孔径为 90.000 ± 0.010 mm (3.5433 ± 0.0004 inch)
安装深度为 2.3 ± 0.5 mm (0.09 ± 0.02 inch)。 
7C-3260 轴  直径为 89.880 ± 0.020 mm (3.5386 ± 0.0008 inch)。 
259-4598 O 形密封圈  组装前,用密封的润滑剂稍稍润滑孔。 
7N-5239 泵驱动轴组件  直径为 74.900 ± 0.015 mm (2.9488 ± 0.0006 inch)
8T-2153 内六角头调整螺钉安装到螺纹孔底部,并拧紧至扭矩 6 ± 1 N·m (53 ± 9 lb in)。 
235-3546 O 形密封圈  组装前,用密封的润滑剂稍稍润滑孔。 
7N-5246 止推垫圈  厚度为 8.50 ± 0.05 mm (0.335 ± 0.002 inch)
新泵驱动轴组件的槽宽度为 8.75 ± 0.10 mm (0.344 ± 0.004 inch)
泵驱动轴组件的端隙为 0.250 ± 0.075 mm (0.0098 ± 0.0030 inch)。 
278-4287 泵过渡接头  安装后, 127-5400 衬套的孔径为 75.000 ± 0.055 mm (2.9528 ± 0.0022 inch)
组装期间,使衬套与泵适配器表面平齐。
衬套中的油孔必须对缸孔上的孔对齐。 

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