C15 and C18 Engines for Caterpillar Built Machines Caterpillar


Fuel Priming Pump - Remove and Install

Usage:

826K 232

拆卸步骤

  1. 将燃油供应转到断开位置,并将电源断路开关转到断开位置。


    图 1g03391985

  2. 将连接到 ARD 歧管的燃油管(未显示)从两端断开。

  3. 拆下螺栓 (1)。 断开线束组件 (2)。


    图 2g02139134

  4. 将螺栓 (3) 从歧管上拆下。


    图 3g02139144

  5. 拆下歧管 (4)。


    图 4g02138698

  6. 卸下锁紧螺母 (5)。


    图 5g02139150

  7. 记下极性后将导线 (6) 从接线柱上拆下。 接线柱上通过 “+” 和 “-” 号标出了极性。


    图 6g02139164

  8. 拆下密封件 (7)。


    图 7g02139169

  9. 拆卸泵组件 (8)。


    图 8g02167735

  10. 将支承环 (9)、密封 (10) 和密封 (11) 从泵组件上拆下。

安装步骤



    图 9g02139275
    新燃油充油泵的正确方位。

  1. 利用泵套件内提供的泵密封安装工具压入新泵 (12) 和密封。

    注: 泵出口应当位于上止点位置。



    图 10g02139286

  2. 将导线重新安装到接线柱上。 安装新锁紧螺母 (6)。 将锁紧螺母上紧到 1.3 N·m (1 lb ft)


    图 11g02139307

  3. 安装新密封 (7)。


    图 12g02139309

  4. 重新安装歧管 (4)。


    图 13g02139311

  5. 重新安装螺栓 (3)。 将螺栓上紧到 12 ± 3 N·m (9 ± 2 lb ft)


    图 14g02138801

  6. 更换滤清器接头 (13)。


    图 15g03391985

  7. 安装螺栓 (1)。 重新连接线束组件 (2)。

  8. 将燃油供应转到 ON 位置,并将电源断路开关转到 ON 位置。

  9. 由两人冲洗燃油泵和燃油管 (1),并将冲洗液收集到适当的容器中,以便于随后的处理。 可以通过转动钥匙或按下手动开关启动燃油泵。 可能配备的手动开关位于燃油粗滤器底座上。

  10. 将燃油管 (1) 连接到 ARD 歧管上。

  11. 重新组装后,通过转动钥匙或按下手动开关为发动机充油。 可能配备的手动开关位于燃油粗滤器底座上。 目视检查泵和 ARD 歧管接头周围有无泄漏。 如果发现泄漏,务必在继续下一步之前解决泄漏问题。

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