3500 Generator Set Engines Caterpillar


Cylinder Block

Usage:

3516B 1NW



图 1g01417382

前视图




图 2g01434393

右视图

注: 组装期间,隔板底部、缸体顶部和板密封垫两侧不得有燃油、机油、水、密封垫粘结剂、组装复合剂以及任何其他杂质。

(A) 隔板厚度 ... 12.313 mm (0.4848 in)

(B) 缸体和隔板之间的板密封垫厚度 ... 0.194 至 0.218 mm (0.0076 至 0.0086 in)

(C) 定位销从缸体顶部表面的伸出量 ... 21.0 ± 0.5 mm (0.83 ± 0.02 in)

(1) 四只螺塞的扭矩 ... 100 ± 15 N·m (75 ± 11 lb ft)

(2) 在要密封的 O 形密封环孔上稍涂润滑剂。

(D) 缸套高度

有关确定缸套高度的正确方法,参见测试和调整, "缸套凸起"。

(E) 缸体上的凸轮轴轴承孔孔径 ... 98.000 ± 0.020 mm (3.8583 ± 0.0008 in)

(F) 凸轮轴轴承上的机油孔必须从水平方向按以下角度定位: ... 20 ± 5 度

注: 所有穿过凸轮轴轴承机油孔的中心线 (F) 和轴承接合面 (3) 的位置必须在如图所示缸体的每一侧。

(G) 从曲轴轴承孔中心线至缸体顶部的新尺寸 ... 586 mm (23.1 in)

(H) 从曲轴轴承孔中心线到缸体底部 (油底壳轨)的新尺寸 ... 230 mm (9.1 in)

(J) 缸体上的主轴承孔

标准原始新尺寸 ... 169.742 ± 0.020 mm (6.6827 ± 0.0008 in)
大于原始尺寸 0.63 mm (0.025 in) ... 170.372 ± 0.020 mm (6.7075 ± 0.0008 in)

(K) 曲轴主轴承盖的尺寸

曲轴主轴承盖的宽度 ... 340.030 ± 0.015 mm (13.3870 ± 0.0006 in)
缸体上曲轴主轴承盖宽度 ... 339.985 ± 0.015 mm (13.3852 ± 0.0006 in)
曲轴主轴承盖侧面和缸体侧面之间的紧压装配合 ... 0.075 mm (0.0030 in)
曲轴主轴承盖侧面和缸体侧面之间的松压装配合 ... 0.015 mm (0.0006 in)

(4) 主轴承盖

按以下步骤拧紧曲轴主轴承盖螺栓:

  1. 安装主轴承盖时使零件号和"前(FRONT)"标记朝向缸体前端。 各盖均带有编号。 各盖都必须按照缸体油底壳轨一侧的对应编号安装。

  1. 组装前,将清洁的发动机机油涂抹在螺栓的螺纹上。

  1. 将插图 1 中所示的螺栓 (5) 至螺栓 (8) 按数字顺序拧紧至扭矩 190 ± 14 N·m (140 ± 10 lb ft)。

  1. 再次将螺栓 (5) 至螺栓 (8) 按数字顺序拧紧至旋度 180 ± 5 度。

(L) 定位销从缸体后表面的伸出量 ... 6.0 ± 0.5 mm (0.24 ± 0.02 in)

(M) 定位销从缸体前表面的伸出量 ... 6.0 ± 0.5 mm (0.24 ± 0.02 in)

(N) 定位销从缸体后表面的伸出量 ... 19.0 ± 0.5 mm (0.75 ± 0.02 in)

(P) 定位销从缸体前表面的伸出量 ... 40.0 ± 0.5 mm (1.57 ± 0.02 in)

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