Check braking system检查制动系统

Check brake fluid检查制动液

1. Check brake fluid level1. 检查制动液液位

1 The brake fluid level should be between the "MAX" and "MIN" marks.制动液液位应位于“MAX”(最高)与“MIN”(最低)标记之间。

2. Check brake fluid quality2. 检查制动液质量 1 Use a brake fluid quick detection pen to check the quality of the brake fluid. If the quality of the brake fluid does not meet the requirements, replace the brake fluid.使用制动液快速探测笔，检查制动液质量，如制动液质量不符合要求则更换制动液。 Recommended tool: Brake fluid quick detection pen推荐工具：制动液快速探测笔 Brake fluid water content: ≤2%制动液含水量：≤2%

Check friction plate检查摩擦片

1. Visual inspection1. 目测检查 1 Check the brake pad thickness from the inspection hole in the cylinder block. If the thickness exceeds the wear limit, it should be replaced.从缸体上的检查孔中检查刹车片厚度。若超出磨损极限厚度应更换。 Allowable wear thickness of front friction plate: 6mm前摩擦片允许磨损厚度：6mm Allowable wear thickness of rear friction plate: 5.5mm后摩擦片允许磨损厚度：5.5mm   Caution:注意： ♦  The left and right wheel friction plates need to be replaced at the same time.左右车轮摩擦片需同时更换。

2 If necessary, disassemble the friction plate and inspect it.若有必要拆卸摩擦片检查。   Caution:注意： ♦  When the front friction plate thickness remains 3mm when braking, the mechanical alarm plate will alarm.前摩擦片厚度剩余3mm制动时，机械报警片进行报警。 3 Check the brake pads for wear or oil contamination and replace if necessary.检查制动摩擦片是否磨损或被油污染，如果有必要请更换。

Check calipers检查卡钳

1. Inspection after disassembly1. 拆卸后检查 1 Remove the caliper.拆卸卡钳。 2 Check the caliper housing for cracks, wear or other damage, and replace the caliper if found.检查卡钳壳体是否有开裂、磨损或其他损坏现象，若有则更换卡钳。 3 Check the caliper piston dust cover seal ring for cracks, damage, aging or other damage. If so, replace the caliper.检查卡钳活塞防尘罩密封圈是否有开裂、破损、老化或其他损坏现象，若有则更换卡钳。 4 Check whether the caliper piston dust cover sealing ring is correctly installed in the caliper body, if not, replace the caliper.检查卡钳活塞防尘罩密封圈是否正确安装在卡钳体内，若否则更换卡钳。 5 Check whether there are traces of brake fluid around the caliper piston dust cover seal and on the friction plate. If so, replace the caliper.检查卡钳活塞防尘罩密封圈周围和摩擦片上是否有制动液痕迹，若有则更换卡钳。 6 Check whether the caliper piston can enter the caliper cylinder smoothly and has a complete stroke. The movement of the caliper piston should be smooth and even. If the caliper piston is stuck or difficult to reach the bottom, replace the caliper.检查卡钳活塞是否能顺畅进入卡钳缸内且行程完整，卡钳活塞的运动应顺畅且均匀，如果卡钳活塞卡滞或者难以到达底部，则更换卡钳。

Check brake lines检查制动管路

1. Visual inspection1. 目测检查 1 Check whether the connection of the brake pipe is loose or deformed. If so, replace it.检查制动管路的连接处是否有松脱或变形的情况，如有应更换。 2 Check the outer surface of the brake hose for cracks, bulges or other damage, and replace it if necessary.检查制动软管外表面是否有裂纹、鼓包或其他损伤，如有应更换。 3 Check whether the brake pipe is obviously bent or deformed. If so, replace it.检查制动管路是否有明显的弯曲或变形，如有应更换。 4 Check whether the connecting thread of the brake pipe is loose. If it is loose, tighten it in time.检查制动管路连接螺纹是否松动，如有松动应及时加以紧固。 5 At the same time, check again whether there is obvious brake fluid leakage at the joint, and replace it if necessary.同时，再次检查连接处是否有明显的制动液渗漏，如有应更换。

Check wheel bearings检查轮毂轴承

1. Check wheel bearings1. 检查轮毂轴承 1 Jack up the vehicle to lift the tire off the ground, hold the upper and lower sides of the tire with both hands, and rock the tire back and forth several times. If there is a clear feeling of looseness in the swing, replace the wheel bearing.顶起车辆使轮胎离开地面，双手握住轮胎的上下侧，来回晃动轮胎数次。如果摇摆有明显松旷的感觉，则更换轮毂轴承。

Check electronic stability and parking module检查电子稳定性与驻车模块

1. Check electronic stability and parking module1. 检查电子稳定性与驻车模块 1 Check whether the fuse in the electrical box in the front compartment of the brake control system is damaged. If damaged, replace the fuse with the same specification.检查制动控制系统前舱电器盒的保险丝是否损坏。若损坏则更换相同规格的保险丝。 2 Check the electronic stability and parking module, brake lines and connections for leaks.检查电子稳定性与驻车模块、制动管路及连接处是否有泄漏。 3 Check whether the grounding point of the grounding wire is loose and whether the grounding position has been changed.检查接地线的搭铁点是否松动，搭铁位置是否被改变。

Check the in-line wheel speed sensor检查直插式轮速传感器

1. Check the in-line wheel speed sensor1. 检查直插式轮速传感器 1 Check the in-line wheel speed sensor wiring and adjust or replace if necessary.检查直插式轮速传感器布线，若有必要调整或更换。 2 Check whether there is any gap between the sensor and the sensor mounting surface, whether the sensor is damaged, and whether there is any foreign matter attached to the front end of the sensor. Adjust or replace if necessary.检查传感器和传感器安装面有无缝隙，传感器有无破损，传感器的最前端有无异物附着。若有必要调整或更换。

Check brake pedal检查制动踏板

1. Check the brake pedal1. 检查制动踏板

1 Turn off the power of the vehicle, continuously step on the brake pedal several times, release the pedal, push the brake pedal with your hand until the pedal becomes heavy, and measure the brake pedal free stroke L.关闭整车电源，连续踩制动踏板数次，松开踏板、用手推制动踏板至踏板变沉，测量制动踏板自由行程L。 Brake pedal free travel: ≤5.55mm制动踏板自由行程：≤5.55mm

Check parking brake检查驻车制动

1. Check parking brake1. 检查驻车制动

1 Under normal braking conditions, drive the vehicle to a slope of about 20%, shift it into "N" gear, depress the brake pedal and turn on the parking brake to stop the vehicle on the slope. Slowly lift the brake pedal and keep the vehicle from sliding down for at least 5 minutes. Otherwise, the parking brake is faulty and should be repaired.制动器正常情况下，将车辆行驶到大约为20%的斜坡上，挂入“N”挡，踩下制动踏板并开启驻车制动，使车辆停在斜坡上。缓慢抬起制动踏板，车辆应最少保持5min不下滑，否则说明驻车制动有故障，应进行检修。

Check fault codes检查故障码

1. Check the fault code1. 检查故障码 1 When the power status changes from "OFF" to "ON", check whether the brake system-related fault indicator light on the combination instrument goes out after self-testing for 3 seconds.当电源状态由“OFF”到“ON”时，检查组合仪表上的制动系统相关故障指示灯是否自检3s后熄灭。 2 Connect the diagnostic instrument, read the diagnostic system data stream, and check that the braking system should be normal.连接诊断仪，读取诊断系统数据流，检查制动系统应正常。