C13, C15, and C18 Tier 4 Final Engines Caterpillar


Cylinder Block

Usage:

826K 232
表面任何 150 mm (5.9 in) 区域内,缸体顶部接触面的平整度必须在 0.05 mm (0.002 in) 范围内。


图 1g01568759

缸体上的缸套孔径:

(A) ... 151.50 ± 0.03 mm (5.965 ± 0.001 in)
(B) ... 149.80 ± 0.30 mm (5.898 ± 0.012 in)
(C) ... 148.00 ± 0.03 mm (5.827 ± 0.001 in)
(D) ... 141.90 ± 0.05 mm (5.587 ± 0.002 in)



图 2g01568760

前视图

(2) 活塞冷却喷嘴螺栓

(E) 凸轮轴孔径的直径 ... 85.000 ± 0.015 mm (3.3465 ± 0.0006 in)

(F) 曲轴孔中心线到缸体上表面之间的距离 ... 387.00 mm (15.236 in)

(G) 缸体中的主轴承孔的直径 ... 116.000 ± 0.013 mm (4.5669 ± 0.0005 in)

(H) 曲轴中心线到缸体下表面之间的距离 ... 120.0 mm (4.72 in)

(J) 主轴承盖的尺寸

主轴承盖的宽度 ... 178.000 ± 0.020 mm (7.0079 ± 0.0008 in)
缸体上的主轴承盖宽度 ... 178.000 ± 0.023 mm (7.0079 ± 0.0009 in)

(1) 将 Loctite 574 涂抹在 3 个杯形塞的孔上。

采用以下步骤拧紧主轴承盖螺栓 (3) :

  1. 正确定位主轴承盖。 主轴承盖上的零件号必须朝向右侧和缸体的前面。 同时,缸体和主轴承盖上的锁键卡槽必须是紧挨着。

    注: 主轴承盖标有标识号 1 到 7。 将主轴承盖装入正确位置。

  1. 润滑主轴承盖螺栓。 使用 SAE 30W 机油或钼成分润滑脂润滑螺纹和垫圈端面。

  1. 将主轴承盖螺栓拧紧至 150 ± 5 N·m (110 ± 4 lb ft)。

  1. 将每个主轴承盖螺栓沿顺时针方向再转动 60 ± 5 度。



图 3g01568764

将凸轮轴轴承安装在缸体上的规定位置。 下列距离测量自缸体的前表面。

(K) ... 972.50 mm (38.287 in)
(L) ... 816.50 mm (32.146 in)
(M) ... 660.50 mm (26.004 in)
(N.) ... 504.50 mm (19.862 in)
(P) ... 348.50 mm (13.720 in)
(R) ... 192.50 mm (7.579 in)
(S) ... 36.50 mm (1.437 in)


注意

必须把凸轮轴轴承安装到正确位置。 不这样做的话可能导致发动机损坏。





图 4g01352353

(4) 轴承接头

(5) 机油孔

(T) 轴承油孔的位置相对垂直方向的角度是 45 度。 全部 7 个轴承都有相同的角度。

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