The lower arm of a car plays a very important role in supporting the body.
The lower arm of the car is also called the car under suspension, which is an important part of the car. Although the part is small, it plays a very important role in supporting the body, and the shock absorber and spring of the car constitute the suspension system.
The role of the car hem arm:
1, buffer vibration: the role of the swing arm is to buffer the vibration of the car, of which the shock absorber is used to cooperate with the swing arm, play a buffer role.
2, material: The material of the swing arm is more diverse, there are aluminum alloy, cast iron, double-layer stamping parts, single-layer stamping parts, various materials have advantages and disadvantages, the toughness of the stamping parts is better, but the strength is not enough, it is easy to break by impact.
3, rust prevention: usually you can check whether the swing arm is rusty, the position of the swing arm is in the front tire and the car center body connected parts, it is easy to check, if you find rust phenomenon must go to the 4s shop in time to prevent breakage accidents.
Precautions for the lower arm of the car:
1, anti-chassis rubbing: Usually when driving, we should pay attention to try not to take uneven roads, such roads are easy to rub the ground, not only the chassis is damaged, but also easy to cause damage to the bottom arm, the bottom arm cracks. Lower arm injury prone to steering wheel shaking, deviation and other phenomena.
2, timely replacement: When there is a problem with the lower swing arm, we must replace it in time, otherwise there will be serious traffic accidents. The service life of each car's hem arm is different, and we should replace it according to the maintenance manual or the recommendation of the 4s shop.
3, four-wheel positioning: After the replacement of the hem arm, we have to carry out four-wheel positioning of the car, four-wheel positioning is to prevent the car from running off or eating the tire phenomenon.
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