How to do a good job of truck chassis maintenance

Truck Chassis: Repairmen shortage exacerbates US chassis scarcity

Trucks are used as an important tool for long-distance transportation. If you want to keep trucks running reliably and reduce the risk of breakdown, you had better do some maintenance. Among the many maintenance of trucks, chassis maintenance is particularly important. A lot of people don’t know how to maintain the chassis well, so you can start with the following.

  1.  Rust prevention

To prevent rust in the truck chassis, it is necessary to remove the cemented sludge and sand on the chassis, or use special sandpaper to sand off the original anti-rust layer, use a blowgun to blow out the water in the gaps, and dry the water with a towel. 

When preparing to spray the anti-rust treatment layer, you must first use covering paper (multi-use newspaper) and tape to cover the tire and exhaust pipe periphery, especially pay attention to the sensors and shock absorber on the body to cover well, and spray the chassis anti-rust material in turn to the chassis, at least 3 layers, the thickness is about 3 mm. 

When performing the care, be sure to maintain a uniform spray coating to form a uniform anti-rust coating that retains a long-lasting effect. After all, is completed, it will be naturally air-dried for 5-10 minutes, and the anti-rust treatment of the chassis will be completed.

  1.  Use alkaline cleaners with caution

The chassis is the lowest part of the truck and it is often overlooked. Moreover, the chassis is towards the driving road, and it is most likely to stick to muddy water, tar, asphalt and other dirt when driving, and its pollution is generally not easy to be found, so it often causes rusty spots due to untimely care. For dirt, tar, asphalt, etc., it can be cleaned with engine cleaner or degreaser, and rust stains, rust spots, etc. can be scrubbed with rust remover. After cleaning, spray the chassis with a multi-functional rust inhibitor. When you’re doing professional chassis maintenance, it should be noticed that don’t use alkaline cleaners, if you use alkaline cleaners, it will greatly affect the anti-rust effect and shorten the anti-rust time and cause accelerated aging of trucks’ components.

  1.  Tire tightness

The truck chassis is integrated with the brake system, so the maintenance of tires can also protect the chassis. The walking performance of truck tires affects the truck’s travel function. If the rotating system is too loose or too tight, it will inevitably cause damage to the chassis. So the elasticity of the tire should be adjusted to the right condition and wear should be checked regularly.

Also, tire pressure is critical to check often on your large truck or tractor-trailer. Your tires are your contact with the road and you want them inflated properly to avoid uneven wear, maximize fuel economy and provide optimum traction, braking and load-carrying ability at all times.

  1.  Do a good job of inspection

For truck chassis maintenance, the most important thing is daily inspection. The components of the chassis contain the travel unit, engine, transmission, drive shaft, differential and suspension. Truck easily leads to damage or components falling off because drivers drive trucks on bumpy roads all year round. Truck parts are small but important, and broken components may not affect the normal operation of the trucks for the time being, but major problems or partial accidents in the trucks are usually caused by these small problems, and the importance of these parts cannot be ignored. Only regular inspection and replacement of components can ensure driving safety and good performance of the trucks, and can also extend the life of the truck.

  1.  Inspect the suspension

When used heavily, the suspension runs the risk of sagging or breaking. It’s a good idea to inspect the suspension before and after hauling any heavy loads or traveling long distances. Check the springs for cracks and make sure the bolts are properly tightened. Check the shock absorbers for any leaks or loose bolts, too.

  1.  Check the transmission

By adjusting the ratio of engine speed to wheel speed, the transmission enables the truck engine to give the wheel the best driving force in different situations. For the maintenance of the transmission, here are some tips.

Firstly, regularly check whether the oil level of the automatic transmission is normal. Unlike the engine oil, the engine oil is checked in the cold car state, and the automatic transmission oil needs to preheat the oil to about 50 ° C, and then put the shift lever in the parking gear after staying in each gear for 2 seconds, at this time, the normal oil level of the dipstick should be located between the highest line and the lowest line. 

Secondly, mix the automatic transmission protector into the automatic transmission. The proportion is 5%, for the automatic transmission of the old car, it is best to add a bottle of automatic transmission leak inhibitor to restore the aging of the transmission seal and prevent leakage. 

Thirdly, master the cycle of changing the automatic transmission oil. In general, the oil change interval of an automatic transmission is 2 years or 40,000-60,000 kilometers. In the process of normal use, the working temperature of automatic transmission oil is about 120 ° C, so it is necessary to use high-quality automatic transmission oil.

  1.  Inspect the drive shaft

The drive shaft is an important part of the automobile transmission train that can transmit the power, and its role is to transmit the power of the engine to the wheels together with the gearbox and the drive axle so that the car produces driving force. In order to ensure the normal work of the drive shaft and extend its service life, it should be noted in use that it is strictly forbidden to use the high-speed gear to start and violently lift the clutch pedal, and at the same time it is strictly forbidden to overload the car and speed, and it should also often check the working state of the drive shaft, check the tightening of the drive shaft hanger, whether the support rubber is damaged, whether the connecting parts of the drive shaft are loose, and whether the drive shaft is deformed.

In fact, the best way to protect the truck is to change your driving habits. Good habits are directly related to the service life of the vehicle. Especially in some rugged and complex road conditions, the damage to the chassis is very large. If the wheels are accidentally trapped in the mud, the chassis can be badly damaged, so it is best to find smooth and solid cement and asphalt roads to drive. At the same time, it is more familiar with the distance between the chassis and the ground, and it can be roughly judged whether the road will collide with the chassis and reduce the damage to the chassis.

Truck chassis maintenance is not an easy task and needs to start from the daily level, from the inspection before driving to the inspection of components, to the change of driving habits. There are a lot of things to do to maintain the chassis, but in brief, using the truck for what it was intended for, driving and maintaining it with care is the most important.

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