C7 Engine for Caterpillar Built Machine Caterpillar


Fuel Transfer Pump - Remove and Install

Usage:

MH3037 KPM

拆卸步骤

表 1
所需工具    
工具     零件号     零件描述     数量    
A     218-8171     螺栓     1    

开始:

  1. 拆下单体喷油器液压泵。 请参阅拆解和组装, "单体喷油器液压泵 - 拆卸"。

注: 更换燃油输送泵需要工具 (A) 。


注意

在进行检验、保养、测试、调整及维修产品期间,必须小心以确保装好排放出的油液。 在打开任何舱室或解体任何储有液体的部件之前,要准备好合适的容器收集液体。

有关收集和盛接 Cat 产品上油液的适用工具和用品,请参阅专门出版物, NENG2500, "代理商维修工具目录"。

按照当地法规和要求处置所有液体。





图 1g01123057

  1. 将单体喷油器液压泵竖直固定到工作台上。

    注: 不保持竖直位置会导致内部构件不对中。

  1. 拆下螺栓 (3 ) 。

  1. 拆下油泵左上角的第一条拉紧螺栓 (1) 。

  1. 利用工具 (A) 替代拉紧螺栓 (1) 。

    注: 工具 (A) 具有小尺寸螺栓头。 工具 (A) 将防止单体喷油器液压泵壳体在维修中分离。

  1. 将工具 (A) 上紧到 10 N·m (89 lb in) 的扭矩。

  1. 从左下角的拉紧螺栓 (4) 开始,将其余螺栓从燃油输送泵 (2) 上拆下。

  1. 拆卸燃油输送泵 (2) 。

安装步骤

  1. 按与拆卸相反的顺序安装输油泵 (2) 。

    1. 按交叉顺序将拉紧螺栓 (4) 拧紧至扭矩为 28 ± 2 N·m (21 ± 1 lb ft)。 再次拧紧螺栓。

    1. 拧紧螺栓 (3) ,使其扭矩达到 8.0 ± 0.4 N·m (71 ± 4 lb in)。

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