C4.4 Industrial Engine Caterpillar


Engine Oil Pump

Usage:

C4.4 444

带平衡器总成的发动机

类型 ... 齿轮驱动差速转子

凸轮数

内转子 ... 6
外转子 ... 7



图 1g00989248

平衡器油泵

(1) 外转子与泵体之间的间隙 ... 0.130 至 0.24 mm (0.0050 至 0.0094 in)




图 2g00989236

内转子

(2) 内转子与外转子之间的间隙 ... 0.050 至 0.200 mm (0.0020 至 0.0079 in)




图 3g00989217

转子的端隙

(3) 转子组件的轴向间隙

内转子 ... 0.04 至 0.11 mm (0.0016 至 0.0043 in)
外转子 ... 0.04 至 0.00 mm (0.0016 至 0.0043 in)



图 4g01455406

端盖

(4) 机油泵盖螺栓的扭矩 ... 26 N·m (19 lb ft)




图 5g01335780

惰轮及泵齿轮

注: 更换惰轮螺栓 (5) 和机油泵齿轮 (6) 的螺母。

(5) 将惰轮螺栓拧紧至以下扭矩。 ... 26 N·m (19 lb ft)

注: 将发动机置于压缩冲程上死点(TC)。 请参阅系统操作、测试以及调整手册, "确定 1 号活塞上止点位置"。 安装平衡器。 请参阅拆解和组装, "平衡器 - 安装"。 安装机油泵齿轮并拧紧螺母 (6) 。

(6) 将螺母拧紧至以下扭矩。 ... 95 N·m (70 lb ft)

将平衡器紧固在缸体上的螺栓拧紧至以下扭矩。 ... 54 N·m (40 lb ft)

不带平衡器总成的发动机

类型 ... 齿轮驱动差速转子

凸轮数

内转子 ... 5
外转子 ... 6



图 6g00938064

机油泵

(1) 外转子与泵体之间的间隙 ... 0.152 至 0.330 mm (0.0059 至 0.0129 in)




图 7g00938061

检查间隙

(2) 内转子与外转子之间的间隙 ... 0.040 至 0.127 mm (0.0015 至 0.0050 in)




图 8g00938799

检查轴向间隙

(3) 转子组件的轴向间隙

内转子 ... 0.038 至 0.089 mm (0.0014 至 0.0035 in)
外转子 ... 0.025 至 0.076 mm (0.0010 至 0.0029 in)

将紧固机油泵组件前盖的螺栓拧紧至以下扭矩。 ... 26 N·m (19 lb ft)

Caterpillar Information System:

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