When inspecting a serviced vehicle, the inspector shall inspect the appearance of the vehicle and conduct inspection or road test on the basis of the driver's reflection and the files provided by the vehicle-using unit on board.

　　1、外观检查

　　1. Appearance inspection

　　①车容：检视车辆外部有无碰伤或漆层脱落，车身或驾驶室的门窗、玻璃、铰链、门锁、把手等是否完备有效。

　　(1) Vehicle capacity: inspect whether the outside of the vehicle is damaged or the paint layer falls off, whether the body or cab doors and windows, glass, hinges, door locks, handles, etc. are complete and effective.

　　②机构：转向、传动、制动等机构是否有松动、渗漏、缺损等现象。

　　(2) Safety mechanism: Whether the steering, transmission, braking and other mechanisms are loose, leakage, defect and other phenomena.

　　③基础件：气缸体、变速器壳、前后桥及车架等有否严重变形和裂损。

　　(3) Basic parts: whether there are serious deformation and cracks in cylinder block, transmission housing, front and rear axles and frame, etc.

　　④轮胎：检视轮胎有否异常磨损现象。

　　Tire: Check whether there is abnormal wear of tire.

　　2、路试检查

　　2. Road Test Inspection

　　①发动机的机油压力和冷却液温度是否正常，发动机在高、中、低转速状况下有无异响。

　　Whether the engine oil pressure and coolant temperature are normal or not, and whether the engine has abnormal sound at high, medium and low speed.

　　②离合器是否有打滑、发抖和分离不彻底现象。

　　Whether the clutch has slippage, trembling and incomplete separation.

　　③变速器是否有挂档困难、跳档或异响。

　　Whether the transmission has difficulty in gearing, gear jumping or abnormal noise.

　　④转向机构是否有跑偏、摆头和阻滞现象。

　　(4) Whether the steering mechanism has the phenomenon of deviation, head swing and blockage.

　　⑤后桥是否有异响。

　　Whether there is any abnormal noise in the rear bridge.

　　⑥制动性能是否良好。

　　_Whether the braking performance is good or not.

　　3、检测诊断车辆二级维护前应进行检测诊断和技术评定，根据结果，确定附加作业和小修项目，结合二级维护一并进行。

　　3. Detection, diagnosis and technical evaluation should be carried out before the second level maintenance of the detection and diagnosis vehicle. According to the results, additional operations and minor repairs should be determined, and combined with the second level maintenance.