Cause of malfunction |
Remedy |
Increased brake pedal travel |
|
Leakage of brake fluid from wheel cylinders |
Replace broken parts of wheel cylinders, wash and dry pads, discs and drums, bleed the hydraulic drive system |
Air in the brake system |
Remove air from the system |
Damaged rubber o-rings in the master cylinder |
Replace rings and bleed the system |
Damaged rubber hoses hydraulic brakes |
Replace hoses and pump the system |
Increased brake disc runout (more than 0.15 mm) |
Sand the disc; if the disc thickness is less than 17.8 mm, replace brake disc |
Fluid leakage through pressure regulator tappet o-rings |
Replace o-rings |
Insufficient braking performance |
|
Lubrication of linings of pads of brake mechanisms |
Rinse and dry pads |
Jamming of pistons in wheel cylinders |
Eliminate the causes of jamming, replace damaged parts, bleed the system |
Complete wear of brake pads |
|
Overheating of the brake mechanisms |
Stop immediately and let the brakes cool down |
Using pads with inappropriate pads |
Use only pads recommended by the manufacturer |
Incorrect pressure regulator adjustment |
Adjust pressure regulator actuator |
Loss of tightness of one of the circuits (accompanied by a partial failure of the brake pedal) |
Replace damaged parts, bleed the system |
Incomplete release of all wheels |
|
No free play on the brake pedal |
Adjust pedal free play |
The protrusion of the adjusting bolt of the vacuum booster rod relative to the mounting plane of the main cylinder is broken |
Adjust protrusion 1.25-0.2mm of adjusting bolt |
Swelling of the rubber seals of the main cylinder due to the ingress of gasoline, mineral oils, etc. into the liquid. |
Thoroughly flush the entire system with brake fluid, replace rubber parts, bleed the hydraulic drive system |
Seizure of master cylinder piston |
Check and, if necessary, replace the master cylinder, bleed the system |