3126B Engine for Caterpillar Built Machines Caterpillar


Unit Injector Hydraulic Pump

Usage:

120H 124



图 1g01138466

(1) 驱动齿轮

(2) 喷射驱动压力控制阀

(3) 机油进口管接头的位置

将管接头拧紧至以下扭矩。 ... 26 ± 3 N·m (19 ± 2 lb ft)

(4) 燃油泵

(5) 燃油进口管接头的位置

将管接头拧紧至以下扭矩。 ... 17.5 ± 2 N·m (13 ± 1 lb ft)

(6) 燃油出口管接头的位置

将管接头拧紧至以下扭矩。 ... 17.5 ± 2 N·m (13 ± 1 lb ft)

(7) 将驱动齿轮的螺母拧紧至下述扭矩。 ... 109 ± 14 N·m (80 ± 10 lb ft)

(8) 高压安全阀设置 ... 32.2 ± 1.7 MPa (4650 ± 245 psi)

(9) 液压泵

(10) 机油出口管接头的位置

将管接头拧紧至以下扭矩。 ... 23 ± 2 N·m (17 ± 1 lb ft)

(11) 燃油泵的安装螺栓




图 2g01138473

(12) 喷射驱动压力控制阀的排放

(13) 将螺塞拧紧至以下扭矩: ... 6.0 ± 0.7 N·m (55 ± 6 lb in)

(14) 将螺塞拧紧至以下扭矩: ... 10.75 ± 1.25 N·m (95 ± 11 lb in)

(15) 输油泵的驱动花键

(16) 安全阀的排放端口

(A) 从驱动端部观看泵时,泵的旋转方向为逆时针。

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