What is the cause of brake drum overheating?


Release time:

Jan 22,2024

Please do not pour water on the brake drum for cooling. The brake drum suddenly cools and shrinks unevenly, which is easy to cause breakage. When the brake drum temperature drops, drive the vehicle slowly to the service station for inspection.

Car brake drum overheating, the main reasons are:

1. The clearance between the left and right brake drums and the brake pads is inconsistent;

2. The left and right tire pressures are inconsistent;

3. The left and right brake pipelines are blocked, resulting in different hydraulic pressure or air pressure on both sides;

4. Brake shoe return spring is broken or too soft;

5. Sub-cylinder piston Mika, slow return;

6. (Oil brake) slow return of brake fluid;

7. (Air brake) brake camshaft does not return;

8. Corrosion of the support pin;

9. The brake drum is out of round;

10. The wheel hub bearing is adjusted too tightly;

11. Insufficient or excessive gear oil, gear oil viscosity is too small.

[Warm Tip] Please try to drive in a place with good road conditions, avoid sudden braking and frequent braking, add the specified type of gear oil, and pay attention to the filling amount. The bearing clearance needs to be adjusted at the service station.

Treatment method: Please do not pour water on the brake drum for cooling. The brake drum suddenly cools and shrinks unevenly, which is easy to cause cracking. When the brake drum temperature drops, drive the vehicle slowly to the service station for inspection.

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