With the development of social economy and the continuous progress of vehicle technology, the "golden combination" of disc axle and air suspension has attracted more and more attention.

From the perspective of advantages, the disc brake airbag bridge has sensitive braking, stable and good braking force output linearity, light deadweight, and excellent shock absorption effect. It can also achieve flexible lifting and lowering of single or multiple axles, improving the driving smoothness of the vehicle.

However, for car owners who are accustomed to using drum type axles and leaf spring suspensions, the disc brake airbag bridge cannot be reinstalled or replaced, and there are many differences in daily use from before. Today, let's take a look at what we need to pay attention to when using the disc brake airbag bridge.

Disc axle

1. Pay attention to the main suspension matching

The disc axle braking response speed is fast. If the trailer is equipped with a disc axle, the braking performance of the tractor needs to reach the same level. Otherwise, the main trailer braking does not match, which can affect the braking effect of the entire vehicle, affect the service life of the components, and easily lead to accidents such as tail throwing that affect driving safety.

Suggested Matching Table for Main Brake Device:

2. Do not spray water to cool down

When using drum type axles, drenching water to cool down is the most common matching device, especially in mountainous areas or long downhill sections. However, if the vehicle owner uses a disc type axle, then drenching water to cool down can never be used again.

On the one hand, because the disc axle has better heat dissipation and heat attenuation resistance than the drum axle, it can achieve heat dissipation through air flow, without the need to spray water to cool down; On the other hand, the disc axle brake disc is completely exposed, and when it is in a hot and hot state at high temperatures, it can easily cause chilling cracking when exposed to cold water, affecting driving safety.

3. Improve self inspection frequency under severe working conditions

"Because the brake disc of a disc axle is exposed, it is easily damaged by foreign objects from the road surface. Owners who have seen" Life at Speed "should be deeply impressed by the stones appearing on the road surface during the relaxation competition. Therefore, if the disc axle is used on gravel roads, mines, outdoor conditions, and other conditions, it is important to regularly inspect the brake disc.".

4. Do not overload transportation

Never overload a disc axle. It is well known that although the braking response speed of the disc axle is very fast, its braking force output strength cannot match that of the drum axle. Therefore, many car owners will choose to add hydraulic retarders, ABS, EBS, etc. to the main vehicle to compensate for the braking force defects of the disc brake. If the vehicle owner selects a disc axle, remember to follow the rated load and not overload transportation. For car owners who often transport gravel, coal, wood, steel, and other heavy goods, it is recommended not to choose a disc type axle.

Air suspension

1. Attention when parking

Trailer airbags are easily affected by the trailer air path. When parking or reversing braking, due to the inertia of the vehicle, the rear of the vehicle may stretch upward at the moment of braking. If the vehicle owner applies the handbrake at the same time, the rear of the vehicle will not rebound, the height control valve will always be in the exhaust state, and the airbag air pressure will be discharged. When the vehicle owner releases the brake, the rear of the vehicle will rebound instantly, causing wrinkles in the airbag.

Therefore, for owners with air suspension installed, when parking or backing up, it is important to pay attention to stopping the vehicle slowly and firmly, and then pull on the handbrake after making sure it stops stably.

In addition, do not park the vehicle on a kerb, and do not let the tires on the front, rear, and both sides of the vehicle be uneven, otherwise the airbag may be easily damaged.

2. Do not overload

The shock absorbing medium of air suspension is air, which cannot be compared to plate springs in terms of load bearing. It is certainly no problem to transport under standard load. However, if you want to overload or load heavy goods, you may not be able to handle air suspension. After all, the significance of air suspension does not lie in more loading, but in high value transportation.

3. Get rid of bad driving habits

Although the air bags and pistons of the air suspension are acid and alkali resistant, they are not resistant to foreign matters and sand particles. Therefore, in the face of complex road conditions such as gravel and muddy roads, it is important to slow down to avoid damage to the air bags due to sand splashing. In case of potholes, it is also necessary to slow down to avoid severe turbulence that may damage the precision components in the air suspension. In addition, in severe weather such as wind, frost, rain, and snow, the air suspension is also prone to damage, which requires additional attention.

4. Daily maintenance

The air suspension uses air bags instead of leaf springs, but the internal shock absorber structure is the same as traditional shock absorption, so daily inspection and regular maintenance are also required. It is recommended to regularly check whether there are faults and hidden dangers in the pump, distribution valve, and pipeline interface. If there are no hidden dangers but a fault code prompt appears, a dedicated computer should be used for comprehensive troubleshooting. Also, it is necessary to check whether there are abnormalities in the airbag. If found, it is necessary to contact a professional maintenance point for repair or replacement.

It can be seen that although the disc brake airbag bridge is technologically advanced and in line with industry trends, it is also unparalleled in terms of "fragility". If car owners often transport green lights, flowers, electronic instruments, hazardous chemicals, fragile goods, etc., choosing a disc brake airbag bridge has more advantages than disadvantages. Although the price is higher and more precautions should be taken in ordinary times, it can better protect goods, even in poor road conditions, and can reduce or avoid damage to goods; However, if the vehicle owner often transports heavy goods, it seems inappropriate to choose the disc brake airbag bridge. Even if it is barely usable, the frequency of maintenance and replacement may not be low. Therefore, car owners still need to comprehensively consider their own operating conditions.

It is worth mentioning that the disc brake airbag bridge can also be divided into two types: American type and European type. The American type guide arm has a light weight and short airbag travel, which is more suitable for standard load and good operating conditions; The European style uses a leaf spring as a guide arm, which has better load-bearing performance and is more suitable for transportation environments with complex road conditions and heavy loads. Car owners can also choose their own airbag bridge based on this.