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Semi trucks rely on powerful braking systems to handle their massive size and weight, especially when carrying heavy loads. These systems aren’t the same as those on passenger vehicles, and proper maintenance is needed to keep them operating safely. Below is a breakdown of the different types of brakes semi trucks use and tips for keeping them in top condition. When your truck needs brake maintenance in Phoenix or the surrounding towns, S & K Transmission & Diesel Repair offers unbeatable service.
The most common braking system on semi trucks is the air brake system, which includes service brakes, parking brakes, and emergency brakes. Air brakes use compressed air to apply pressure, engaging the brake pads or shoes to slow the truck. They’re highly effective and designed to handle the demands of heavy-duty vehicles. To maintain air brakes, regularly inspect the air lines, compressor, and reservoirs for leaks or damage. Ensure air pressure levels are within the recommended range, as low pressure can compromise braking power.
Many modern semi trucks are equipped with air disc brakes, which offer better stopping power and improved heat dissipation compared to traditional drum brakes. These brakes are less prone to fading during heavy use, making them a safer option for steep descents or long hauls. Maintenance for air disc brakes involves inspecting the rotors and pads for wear and replacing them as needed. Keep an eye on the calipers to ensure they’re functioning smoothly.
While disc brakes are replacing drum brakes in many cases, they’re still widely used in semi trucks. The brake shoes are pressed against the inside of the drum to create friction. Regular maintenance includes checking for worn shoes, warped drums, and ensuring proper lubrication of components.
Perform regular inspections of brake components, including pads, rotors, drums, and air lines.
Monitor brake performance for signs of wear, such as squealing, grinding, or reduced stopping power. Replace worn parts promptly to avoid further damage to the system. Keep brake systems clean and free from debris, especially after driving in muddy or snowy conditions.
Big rigs cover a lot of ground day after day, which is why routine brake maintenance is so critical to their long-lasting performance. S&K Transmission & Diesel Repair offers everything you need at our Phoenix semi truck shop to keep yourself rolling down the road. Don’t hesitate to give us a call at 623-244-8887
when it’s time for preventative semi truck maintenance.
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