What axle bushing replacement is and what it is for

Axle bushing replacement is part of what keeps a vehicle's suspension working normally.

That is because it is through the suspension that the wheel stays on the ground, absorbing impact and preventing the chassis or the cargo from being damaged. However, over time, it is natural for parts to wear out and lose their original properties.

This directly interferes with how the vehicle is driven and with the driver's safety. That is why you need to watch for signs of poor performance and make sure fleet maintenance is carried out according to its schedule.

But what is the right time to do axle bushing replacement? How often does it need to be put on the schedule? Well, before getting to that question, you need to understand exactly what this task is. So, keep reading!

What is axle bushing replacement?

Axle bushing replacement, also known as a steering knuckle kit, serves to restore a vehicle's factory characteristics, bringing back all of its elastic capacity.

As a result, the driver gets lighter and safer steering. After all, with a well-maintained suspension that absorbs impacts correctly, the vehicle is more resistant to friction and impacts from the ground.

It is important that this moment be used to analyze the kit's entire structure, such as the leaf spring pack, spring eyes and bushings.

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Why is axle bushing replacement important?

With so many roads in poor condition in Brazil, it is common for parts to wear out prematurely, affecting the entire suspension system.

That is why this type of maintenance should take place every six months. Unless the driver notices an abnormality before then, in which case they should turn to a specialist as quickly as possible.

And how do you identify this issue?

One of the main (and first) components to show signs of wear and irregularity is the tire. The driver can easily notice an irregularity, because it affects the way they drive and the vehicle's stability in curves.

So, for the truck's steering knuckle, the following parts are replaced:

• Kingpin bushings;
• Washers;
• Steering knuckle locks and bearing.

Replacing these parts not only improves the performance of the suspension assembly but also helps increase the useful life of the tires, since it protects them from irregular wear.

It is worth noting that a detailed analysis of the assembly's entire structure is not expensive and is a necessary investment to prevent bigger problems and expenses that were not anticipated. Regular maintenance can also keep the operation more efficient and reduce the chance of costly repairs in the future.

To avoid trouble and help preserve the suspension for longer, the weight limit of the cargo transported must be respected. That is because exceeding this limit unbalances the distribution of force and weight, which results in greater effort from the suspension.

In addition, traveling with an excessive load can cause cracks in the chassis or the body, also increasing the risk of breaking the axle and the leaves of the leaf spring pack.

Another important precaution is lubricating the shock absorbers, as this keeps them from accumulating dirt and having their movement impaired, which makes the component lose elasticity.

What is the axle bushing replacement process for?

Truck axle bushing replacement serves to prevent wear of the parts, ensuring the driver's safety and the proper functioning of the transport.

When preventive maintenance is carried out, the comfort of driving a heavy vehicle is noticeable: it ensures the suspension's effectiveness and improves the useful life of the tires, avoiding greater expenses.

When the suspension, the tires and the steering components work in good condition, the vehicle becomes more predictable for whoever is driving. Preventive care reduces play and wear that could grow until they turn into a corrective stop.

According to PAHO/WHO (the Pan American Health Organization and the World Health Organization), road safety brings together measures to reduce the risk of injuries and deaths, and safe vehicles play an essential role in preventing road crashes.

For this reason, and for everything we have already discussed, you must carry out preventive fleet maintenance and include axle bushing replacement in your periodic services.

Why include it in preventive maintenance?

Axle bushing replacement is necessarily part of preventive maintenance, even though it is only scheduled every 6 months.

The mileage usually covered by freight and passenger transport vehicles requires all of their components to be working perfectly.

Therefore, preventive maintenance becomes essential by avoiding damage to the vehicle, lowering the chance of unexpected repairs and helping get the most performance your truck can offer.

In other words: preventive maintenance plans cost less and help ensure a safe trip for the truck, the driver and the cargo.