There are several problems associated with truck brake linings, including:

Wear and tear: One of the primary issues with brake linings is that they wear out over time, particularly if the truck is driven frequently or used for heavy loads. This can result in reduced braking performance and potentially dangerous situations on the road.

Heat buildup: The friction generated by the brake linings can cause heat to build up, which can lead to brake fade or failure. This is particularly problematic in heavy-duty trucks that are used for hauling heavy loads.

Noise: Brake linings can also create noise when they come into contact with the brake drum or rotor. This can be annoying to drivers and passengers, and may also indicate that there is a problem with the braking system.

Dust: Brake linings can produce dust as they wear down, which can accumulate on the wheels, tires, and surrounding areas. This can be unsightly, and in some cases, may also be a health hazard if the dust is inhaled.

Environmental concerns: Some types of brake linings contain hazardous materials, such as asbestos, which can pose a risk to both the environment and human health if they are not disposed of properly.

Overall, it is important to properly maintain and replace truck brake linings to ensure safe and reliable braking performance.