- metal pipelines should not have nicks, deep scratches, rubbing, active centers of corrosion and should be located with a gap from parts that can damage them;
- brake hoses must not have cracks visible to the naked eye on the outer sheath and traces of chafing; they must not come into contact with mineral oils and greases that dissolve rubber; by strongly pressing the brake pedal, they check to see if swelling appears on the hoses, indicating malfunctions;
- all pipe fastening brackets must be intact and well tightened; loosening of the fastening or destruction of the brackets leads to vibration of the pipelines, causing them to break;
- leakage of liquid from the connections of the main cylinder with the tank and from the fittings is not allowed; if necessary, replace the tank bushings and tighten the nuts without exposing the pipelines to deformation.
Detected malfunctions are eliminated by replacing damaged parts with new ones. Flexible hoses, regardless of their condition, are replaced with new ones after 125,000 km or after 5 years of vehicle operation to prevent sudden ruptures due to aging.