3412 Generator Set Engines Caterpillar


Gear Group (Front)

Usage:

D10N 2YD



图 1g01407416

(1) 泵驱动齿轮

(3) 水泵驱动齿轮

(4) 附件驱动齿轮

(10) 机油泵惰轮齿轮

(13) 油泵驱动齿轮




图 2g01407417

正时标记

发动机前方必须可见凸轮轴齿轮 (2) 、凸轮轴惰齿轮 (7) 、惰齿轮 (8) 和曲轴齿轮 (9) 上的正时标记。 图 2 显示了 1 号活塞位于上止点时正时标记的正确排列。

组装时,用清洁发动机机油润滑驱动惰轮轴、轴承孔和止推片 (5) 的端面。 安装止推片,同时使油槽侧朝向驱动惰齿轮。

(A) 新驱动惰轮轴直径 ... 63.500 ± 0.013 mm (2.5000 ± 0.0005 in)

组装后,驱动惰齿轮的轴承孔 ... 63.566 ± 0.013 mm (2.5026 ± 0.0005 in)

(6) 五颗锁紧螺栓的扭矩 ... 55 ± 10 N·m (41 ± 7 lb ft)

组装时,安装止推片 (11) ,使油槽侧朝向惰齿轮。

(B) 新油泵惰轮轴的直径 ... 34.943 ± 0.013 mm (1.3757 ± 0.0005 in)

组装后轴承孔孔径 ... 35.034 ± 0.038 mm (1.3793 ± 0.0015 in)

(C) 弹簧销从油泵惰轮轴前端面伸出的长度 ... 3.0 mm (0.12 in)

(D) 定位销从油泵惰轮轴底端面伸出的长度 ... 4.8 mm (0.19 in)

注: 在螺栓 (12) 的螺纹上涂抹 5P-3413 管密封胶 。

(12) 螺栓的扭矩 ... 55 ± 10 N·m (41 ± 7 lb ft)

(14) 螺栓的扭矩 ... 55 ± 10 N·m (41 ± 7 lb ft)

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