Accident repair sequence事故修理顺序

1. Important components that must be inspected1. 必须检查的重要部件

1 If you suspect that the vehicle body suspension has been damaged or deformed, you should check the vehicle's suspension on a body calibration stand and make necessary corrections.如果怀疑车身悬架已经损坏或变形，应当在车身校正架上检查车辆的悬架，进行必要的校正。

2 Check whether the steering device and steering rod are normal, and visually inspect whether there are deformations and cracks.检查转向装置和转向拉杆是否正常，目测检查是否发生变形及裂缝。

3 Check all chassis components.检查所有底盘部件。

4 Check wheels and tires for damage, check concentricity and balance.检查车轮和轮胎是否损坏，检查同心度和平衡性。

5 Check the tire tread and sidewalls for cracks, and check the tire pressure.检查轮胎花纹和胎壁上是否有裂缝，并检查轮胎气压。

6 After repairs, a real vehicle test should be carried out on the road to determine whether the vehicle can drive safely and whether the safety performance meets the standards.在维修后应进行道路实车测试，以便确定车辆是否能安全行驶，安全性能是否符合标准。

2. Measurement2. 测量

1 Before disassembly and cutting operations, measurements should be made according to the body size diagram, and a puller should be used to correct the damaged body or frame.拆卸和切割作业前，应根据车身尺寸图进行测量，使用拉具矫正受损的车身或车架。

3. Disassembly3. 拆卸

1 Do not cut reinforcements or bends.禁止切割加强件或弯曲部位。

Caution:注意：

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Cuts must be made in straight lines to avoid cutting into the stiffener sections.必须沿直线进行切割，避免切割加强件部分。

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Cutting affects the strength of the car body.切割会影响车身的强度。

2 When rough cutting new parts in the joint area, an overlap of 20-30mm must be allowed.在接合区域对新零件进行粗切时，必须预留20-30mm的重叠。

Caution:注意：

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When cutting the panels, be careful not to damage the surrounding panels or any panels underneath. If any panels are damaged, be sure to have them repaired.切割面板时，小心不要损坏周围面板或下方的任何面板。如果有任何面板损坏，则务必对其进行维修。

3 Do not drill or cut in the area where the wiring harness is installed.禁止在线束安装位置区域进行钻孔或切割。

4 When disassembling adjacent components, protective tape must be applied around the body and on the disassembly tools to avoid damage to the components.拆卸相邻组件时，必须在车身周围和拆卸工具上粘贴保护胶带，避免部件受损。

4. Welding4. 焊接

1 Under normal circumstances, when the total thickness of the welded panels is greater than 3mm, a MIG welder should be used for fill welding.在一般情况下，当焊接的板件总厚度大于3mm时，要使用MIG焊机进行填焊。

Caution:注意：

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If the total thickness of the steel plate is greater than 3mm, spot welding cannot guarantee sufficient durability.如果钢板总厚度大于3mm，则点焊无法保证足够的耐久性。

2 Before welding, the new parts to be welded and the body paint film need to be removed, and then use solder joint sealant (or through-welding primer).焊接前需将需要焊接的新部件和车身漆膜去除，然后使用焊点密封胶(或透焊底漆)。

Caution:注意：

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Do not apply solder joint sealant (or solder penetration primer) to the outside of the contact surface.不要将焊点密封胶(或透焊底漆)涂抹在接触面外部。

3 Fill welding hole size:填焊焊孔尺寸：

The thickness of the welding part is less than 1.0mm: greater than Φ5mm焊接部位厚度小于1.0mm：大于Φ5mm

Welding part thickness 1.0-1.6mm: greater than Φ6.5mm焊接部位厚度1.0-1.6mm：大于Φ6.5mm

The thickness of the welding part is less than 1.7-2.3mm: greater than Φ8mm焊接部位厚度小于1.7-2.3mm：大于Φ8mm

The thickness of the welding part is greater than 2.4mm: greater than Φ10mm焊接部位厚度大于2.4mm：大于Φ10mm

Caution:注意：

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For areas where spot welding cannot be performed, a hole punch or drill can be used to drill holes for fill welding.对无法进行点焊的部位，可使用打孔器或钻头打孔，以便进行填焊作业。

4 Things to do when welding.焊接时操作事项。

Caution:注意：

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When welding, electronic components may be damaged by the electrical current delivered through the vehicle body by the welding machine.焊接时，电子组件有可能会被由焊机输送流经车身的电流损坏。

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Before starting welding, disconnect the negative terminal of the 12V battery and set a ground near the welding part of the body.开始焊接前，需先断开蓄电池负极接线柱，并在车身焊接部位附近设置接地。

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Spot welding should be no less than 1.3 times the number of original factory welding points.点焊时需不低于原厂焊点数的1.3倍。

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When filling welding, the number of welding points shall not be lower than that of the original factory.填焊时不低于原厂的焊点数。

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A MIG (Metal Inert Gas) welder should be used for fill welding operations.填焊作业应使用MIG(金属惰性气体)焊机。

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Gas welding or filler welding cannot be used on areas other than the specified parts of the steel plate.不可对钢板规定部位以外的区域使用气焊或填焊。

5 Before installing new parts, dimensions must be measured according to the body size diagram to ensure correct assembly.安装新部件前，必须依照车身尺寸图进行尺寸测量，以确保正确装配。

6 After installation is complete, confirm that the assembly is appropriate.安装完成后确认装配是否适当。

7 After welding, the welding part must be inspected to ensure that the welding is firm.焊接后必须检查焊接部位，确保焊接牢固。

8 When using a disc grinder to grind the welding area, do not grind excessively, otherwise the strength of the welding area will be reduced.使用圆盘式研磨机打磨焊区时，不可研磨过度，否则会降低焊接部位强度。

9 When welding, avoid overlapping welding with the old welding area.焊接时避免与旧焊区重叠焊接。

10 The shape of the spot welding tip of the spot welding machine will affect the welding strength, so the spot welding tip has a proper shape, you can use a spot welding tip scraper to trim the welding tip, and let it cool after five or six spot welds.点焊机的点焊极头形状会影响焊接强度，因此要点焊极头具有适当形状，可使用点焊极头刮刀修整焊极，并在点焊五或六次后让其冷却。

11 Before welding, the paint film on the welding part needs to be removed, including the seams and surfaces in contact with the welding head.焊接前需要去除焊接部位的漆膜，包括与焊头接触的接缝和表面。

5. Anti-rust treatment (before painting)5. 防锈处理(涂装前)

1 To prevent body panels from water intrusion or rust, apply body sealant to the seams of the body panels and the edges of the doors, hood, etc.为防止车身面板进水或生锈，在车身面板接缝处和车门、发动机盖罩等的边缘处涂抹车身密封胶。

2 To prevent corrosion and protect the vehicle body from damage caused by stone chips, be sure to apply a sufficient amount of anti-stone chip coating to the underbody and the inside of the wheel arches.为了防止腐蚀，保护车身免受碎石撞击而损伤，务必在车身底部和轮罩内侧涂抹足量的抗石击涂层。

6. Anti-rust treatment (after painting)6. 防锈处理(涂装后)

1 For parts that are difficult to spray (such as doors, hinges, pillars and other closed-section structures), apply a sufficient amount of rust inhibitor (wax) through the access holes or mounting holes of the components.对于难以喷涂的部位(如：车门、铰链、车柱等封闭断面结构的部位)，通过部件的检修孔或安装孔涂抹足量的防锈剂(蜡)。