C-9 Engines for Caterpillar Built Machines Caterpillar


Camshaft

Usage:

TK711 101



图 1g01419279

(1) 凸轮齿轮

(2) 凸轮轴

新曲轴的轴向间隙 ... 0.13 ± 0.08 mm (0.005 ± 0.003 in)
磨损凸轮轴的最大允许轴向间隙 ... 0.46 mm (0.018 in)

(A) 新凸轮轴轴承轴颈的直径 ... 65.126 ± 0.013 mm (2.5640 ± 0.0005 in)

(B) 板

新板的厚度 ... 4.7 mm (0.19 in)
新凸轮轴中套筒的厚度 ... 4.83 ± 0.05 mm (0.190 ± 0.002 in)



图 2g01419280

(C) 凸轮轴凸轮规定升程

排气凸轮 ... 6.858 mm (0.2700 in)
进气凸轮 ... 8.655 mm (0.3407 in)

按照以下步骤确定实际凸轮轴凸轮升程:

  1. 测量凸轮轴凸轮高度 (D) 。

  1. 测量基圆 (E) 。

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

新凸轮的实际凸轮高度和规定凸轮高度的最大可允许差值 ... ± 0.10 mm (0.004 in)

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