C13, C15, and C18 Tier 4 Final Engines Caterpillar


Camshaft

Usage:

826K 232


图 1g01350428
发动机俯视图

(1) 凸轮轴轴承轴颈的直径 ... 77.850 ± 0.025 mm (3.0650 ± 0.0010 in)

(2) 螺栓扭矩 ... 35 ± 8 N·m (26 ± 6 lb ft)

凸轮轴 0 升程时的喷油器凸轮转动量 ... 74 到 180 度



图 2g01446570

(A) 规定的凸轮轴凸轮升程

排气凸轮 ... 9.417 mm (0.3707 in)
进气凸轮 ... 12.607 mm (0.4963 in)
喷油器凸轮 ... 12.703 mm (0.5001 in)

按照以下步骤得出实际凸轮升程:

  1. 测量凸轮轴凸轮高度 ( B)。

  2. 测量基圆 (C)。

  3. 从凸轮轴凸轮高度 ( B) 中减去基圆 (C)。 二者之差就是实际凸轮轴凸轮升程。

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