- metal pipelines should not have nicks, scratches, rubbing, active centers of corrosion and should not be located near sharp edges that can damage them;
- brake hoses must not have visible cracks on the outer sheath and traces of chafing; mineral oils and lubricants that dissolve rubber should not get on them; by strongly pressing the brake pedal, check for swelling on the hoses, indicating their unsuitability;
- all pipe fastening brackets must be intact and well tightened; loosening or destruction of the brackets leads to vibration of the pipelines, which can cause them to break;
- leakage of liquid from the connections of the main cylinder with the tank and from the fitting is not allowed; if necessary, replace the bushings of the tank and tighten the nuts without subjecting the pipelines to twisting. Eliminate the detected malfunctions by replacing the damaged parts with new ones. Flexible hoses, regardless of their condition, should be replaced with new ones after 125,000 km or after five years of vehicle operation in order to prevent sudden hose ruptures due to aging.
The level of brake fluid in the tank is checked visually by the marks applied to the body of the tank. With the cover removed and new linings of the brake pads, the fluid level should be at the mark «Max». If the hydraulic brake drive is in good order, the lowering of the fluid level in the reservoir is due to the wear of the linings of the brake pads. Lowering the liquid level to the mark «Min» indirectly indicates their limiting wear. In this case, it is necessary to directly monitor the condition of the pads, and you should not add liquid to the reservoir, since when installing new pads, the fluid level in the reservoir will rise to normal.