Zonxin Semi-Trailer Disc Axle User Manual

No Braking or Poor Braking Effect

Brake pads are worn out.

Clearance between brake pads and brake disc is incorrect.

Brake disc surface condition is poor.

Brake chamber air pressure is insufficient.

Drain plug of the brake chamber is not removed, causing blockage.

Replace with new brake pads.

Reset clearance and perform functional inspection.

Replace brake disc.

Refer to tractor manufacturer's air pressure requirements.

Remove the downward-facing drain plugs on both brake chambers.

Abnormal Brake Pad Wear

Vehicle is operated under long-term heavy load or poor road conditions.

Continuous braking causing excessive pad temperature.

Brake disc is cracked.

Operate according to rated load.

Use braking properly according to regulations.

Replace brake disc.

Brake Drag (Brakes Not Fully Releasing)

Brake chamber push rod returns normally when brake is released.

Insufficient air pressure to fully compress parking brake spring.

Clearance between brake pad and disc is incorrect.

Brake pad cannot move freely.

Caliper sliding function is abnormal.

Hub bearing clearance is incorrect.

Pressure regulator or brake force distribution is abnormal.

Refer to the vehicle manufacturer’s manual.

Refer to the vehicle manufacturer’s manual.

Reset clearance and perform functional inspection.

Remove and clean brake pads and caliper.

Replace guide pins, bushings, and protective boots.

Readjust bearing clearance.

Refer to the vehicle manufacturer’s manual.