Left front longitudinal beam assembly左前纵梁总成

Removal procedure拆卸程序

1. Remove the left front longitudinal beam assembly1. 拆卸左前纵梁总成 1 Remove the sealant around the left front longitudinal member assembly.除去左前纵梁总成周围密封胶。

2 Clean the welding area to expose the solder joints, use an electric drill to drill out the solder joints in the raised area ①, and use a chisel and hammer to disassemble the solder joints.清洁焊接区域，露出焊点，使用电钻钻除凸起区域①的焊点，使用凿子和锤子拆开焊接点。

3 Use an electric drill to remove the solder joints in the raised area ①, use a chisel and hammer to disassemble the solder joints, and remove the left front longitudinal member assembly.使用电钻钻除凸起区域①的焊点，使用凿子和锤子拆开焊接点，取下左前纵梁总成。

Installation procedure安装程序

Caution:注意： ♦  The center of the solder joint should be placed at the center of the overlapping surface.焊点中心应布置在搭接面的中心处。 ♦  In order to ensure that the strength of the car body remains consistent with the original car, it is recommended to add a certain number of welding spots or plug welding.为保证车身强度与原车保持一致，建议增加一定数量的焊点或塞焊。 ♦  When the accessibility of the spot welding gun is insufficient, the plug welding process is used instead.点焊枪可达性不足时，使用塞焊工艺替代。 ♦  When using MAG welding for plug welding or full welding, structural adhesive cannot be applied to the area above 30mm.使用MAG焊进行塞焊或全焊时，30mm以上区域范围不能涂抹结构胶。

1. Install the left front longitudinal beam assembly1. 安装左前纵梁总成 1 Sand the weld surfaces and bonding surfaces of the new parts until metal is exposed, then use a silicone-free cleaner to clean the body and bonding areas of the new parts.打磨新部件的焊缝表面和粘合表面，直至有金属暴露出来，然后用无硅油清洁剂，来清洗车身和新部件的粘合区域。

2 Apply structural glue to the welding position ①.在焊接位置①上涂抹涂抹结构胶。

3 Place and adjust the left front longitudinal beam assembly to the installation position, use self-locking clips to fix it, and use a spot welder to weld the area shown in the figure ①.放置并调整左前纵梁总成到安装位置，使用自锁夹固定，使用点焊机焊接图示区域①。

4 Use a spot welder to weld the area shown in the picture ①.使用点焊机焊接图示区域①。 5 Use sealant to seal the joints between the component and the body.使用密封胶密封部件与车身之间的接缝。 6 Spray the exterior surface with topcoat.对外观面进行面漆喷涂。