C15 and C18 Engines for Caterpillar Built Machines Caterpillar


Piston and Rings

Usage:

826K 2L3


图 1g06144388

表 1
技术规格,适用于 477-3845 活塞和连杆总成 
项目  数量  零件  技术规格说明 
247-6130 顶部活塞环  安装顶部活塞环时使标有 "UP-1" 的一侧朝向活塞顶部。 使彩条朝向活塞环端隙的右侧。 
缸套孔径为 137.16 mm (5.400 inch),顶部活塞环端部之间的间隙为 0.40 ± 0.10 mm (0.016 ± 0.004 inch)
顶部活塞环端部间的间隙各增加 0.03 mm (0.001 inch),缸套孔径大小增加 0.08 mm (0.003 inch)
新顶部活塞环的厚度为 3.81 mm (0.150 inch)
164-4187 活塞环  安装中间活塞环时使标有 "UP-2" 的一侧朝向活塞顶部。 使彩条朝向活塞环端隙的右侧。 
缸套孔径为 137.16 mm (5.400 inch),中间活塞环端部之间的间隙为 0.770 ± 0.125 mm (0.0303 ± 0.0049 inch)
中间活塞环端部间的间隙各增加 0.03 mm (0.001 inch),缸套孔径大小增加 0.08 mm (0.003 inch)
新中间活塞环的厚度为 3.08 mm (1.121 inch)
306-4014 活塞环  机油控制环的弹簧端应与环端隙成 180 度。 从环端隙中必须能看到弹簧圈的彩色条纹。 
缸套孔径为 137.16 mm (5.400 inch),油槽和新控油活塞环之间的间隙为 0.45 ± 0.15 mm (0.018 ± 0.006 inch)
控油活塞环端部间的间隙各增加 0.03 mm (0.001 inch),缸套孔径大小增加 0.08 mm (0.003 inch)
新控油活塞环的厚度为 3.980 ± 0.010 mm (0.1567 ± 0.0004 inch)
180-7350 活塞销  将活塞销插入活塞体组件和连杆中之前,先用清洁的发动机机油润滑活塞销。 
新活塞销的直径为 59.975 ± 0.005 mm (2.3612 ± 0.0002 inch)
新活塞销的长度为 89.80 ± 0.15 mm (3.535 ± 0.006 inch)
活塞组件中活塞销的孔径为 60.095 ± 0.010 mm (2.3659 ± 0.0004 inch)
250-2940 销固定器  安装挡圈,使开口朝向活塞底部。 参考图1。 
在装配进缸体中之前,先使用清洁的发动机机油彻底润滑区域 (A) 中的整个活塞。 
活塞环安装完成之后,旋转活塞环使各端隙之间成 120 度。 

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