As technology advances and living standards improve, truck drivers are demanding more and more comfort for commercial vehicles. A considerable proportion of them eat and live in cars. They must have experienced ups and downs at the same speed, shaking to and fro when braking, and buzzing on the accelerating rear axle. The problem is that these difficult problems are often hard enough but not enough.

These vibration and noise problems are specialised in all major automobile factories. People in the industry call them Metaphysics – NVH. But the seemingly mysterious and profound problem is that users pay attention to driving habits and timely check the state of the vehicle in daily use, and can effectively find the crux of the problem, and then seek help.

1. When driving, the cab is up or down or pitching.

Medium and heavy trucks will have no-load, full-load cab shaking, bumpy feeling, driving fatigue easily, but also cause drivers to worry about the state of the vehicle, suspected vehicle failure. There are many factors affecting the abnormal shake, mainly caused by tire deformation. Users can make use of the abnormal shake in several aspects.

Firstly, no matter no load or full load, don't slam on the brake, should try to use multiple slow brake slowing, such as intersection, turn should be decelerated in advance, develop good braking habits, reduce tire wear;

Secondly, periodically inspect the tire wear of Baotou northbound heavy truck accessories, and replace the tire in time if the wear is serious.

Third, check the tire pressure regularly and keep the same axle pressure as far as possible.

Fourthly, when the vehicle is stationary for a long time, due to the static deformation of the tire, abnormal shaking may occur at the beginning of the vehicle. At this time, the vehicle can be heated at low and medium speed for a period of time, and the vehicle state can be restored after the static deformation is eliminated.

Two. Engine room jitter during ignition and idle speed.

In the process of ignition and extinction, the driver sits on the driver's seat to feel the obvious impact vibration, and even can hear the knock.

This situation is mostly due to the failure of the cab or engine support cushions, the common may be the cushions of mutual extrusion deformation, you can see whether the cushions are aging, whether there are knock marks on the bracket.

Three, the vehicle jitter is serious during braking.

Good road running, any speed on the brake pedal has obvious jitter. During the braking process, the jitter frequency decreases with the decrease of vehicle speed. Drivers can carry out a variety of speed braking tests based on this, if the phenomenon is similar, the main reason may be that Baotou northbound heavy truck parts brake drum, disassemble and check all the brake drum, if there is uneven friction marks, the drum is certainly not up to standard; if there is no obvious uneven friction marks, check the brake gap.

In order to avoid this kind of brake shaking problem, and also for the sake of driving safety, it is necessary to check whether the brake system is in normal use regularly, replace unqualified brake components in time, and avoid pressing and re-pressing the brake.

Four, rear bridge abnormal sound.

Heavy trucks have a distinct "buzzing" noise when they accelerate, collect oil or run at a constant speed after a certain mileage. Check the gear oil of the main reducer of Baotou North Bend Heavy Truck Parts, maintain it in time, observe the traffic regulations and avoid overloading.