C13, C15, and C18 Tier 4 Final Engines Caterpillar


Piston and Rings

Usage:

826K 232


图 1g01481993

(1) 活塞对称于中央凹陷。

组装到缸体之前,360 度润滑整个活塞部位 (A)。 采用干净的机油。

顶活塞环(2)

注: 安装顶活塞环时使标有 "UP-1" 的一侧朝向活塞顶部。

新顶活塞环的厚度 ... 4.0 mm (0.16 in)

130.000 mm (5.1181 in) 的缸套孔中的活塞环两端之间的间隙 ... 0.40 ± 0.10 mm (0.016 ± 0.004 in)

缸套孔每增加 0.03 mm (0.001 in) 活塞环两端之间间隙增加的量 ... 0.09 mm (0.004 in)

中间活塞环(3)

注: 安装中间活塞环时使标有 "UP-2" 的一侧朝向活塞顶部。

新活塞中用于中间活塞环的宽度 ... 3.053 ± 0.013 mm (0.1202 ± 0.0005 in)

新中间活塞环的厚度 ... 2.980 ± 0.010 mm (0.1173 ± 0.0004 in)

130.000 mm (5.1181 in) 的缸套孔中的活塞环两端之间的间隙 ... 1.000 ± 0.125 mm (0.0393 ± 0.0049 in)

缸套孔每增加 0.03 mm (0.001 in) 活塞环两端之间间隙增加的量 ... 0.09 mm (0.004 in)

控油环(4)

注: 安装控油环后,控油环末端应和环开口间隙相差180度。 从环两端缝隙中必须能够看见活塞环的白色部分。

新活塞上的活塞机油控制环槽宽 ... 4.052 ± 0.012 mm (0.1595 ± 0.0005 in)

新的控油环厚度 ... 3.980 ± 0.010 mm (0.1567 ± 0.0004 in)

130.000 mm (5.1181 in) 的缸套孔中的活塞环两端之间的间隙 ... 0.45 ± 0.15 mm (0.018 ± 0.006 in)

缸套孔每增加 0.03 mm (0.001 in),活塞控油环两端之间间隙增加的量 ... 0.09 mm (0.004 in)

注: 活塞环安装完成之后,旋转活塞环使各端隙之间成 120 度。

活塞销(5)

注: 组装前,用干净的发动机机油彻底润滑活塞销。

活塞销孔直径 ... 53.220 ± 0.010 mm (2.0952 ± 0.0004 in)

Caterpillar Information System:

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