Daewoo Nexia

since 1994 of release

Repair and car operation

At big delays the brake pedal becomes more "rigid".

The external factors influencing work of brake system:

1) Tires. The tires having various contact and coupling with darling will brake differently. It is necessary to support identical pressure of air in tires. The tires located on one axis, should have approximately identical depth of drawing of a protector.

2) Car loading. At non-uniform loading of the car those wheels of which the big share of loading is the share, demand also the bigger brake moment, than the others. Higher efforts are necessary for braking of completely loaded car on a brake pedal.

3) Corners of installation of wheels. Violation of the correct corners of installation of wheels, especially distributed also a longitudinal inclination of an axis of turn, leads when braking to car withdrawal aside.

The brake system is equipped with a signaling device of malfunction of BRAKE which is located on a control panel. At ignition key turn in the situation START the signaling device of BRAKE should light up. After return of a key to the situation RUN the signaling device is switched off. The signaling device of BRAKE joins in the following cases:

– at turning on of the parking brake (ignition is included);
– when falling level of brake liquid in a tank of the main brake cylinder.

At the idling engine and a neutral in a transmission to press and hold a brake pedal with constant effort. If the brake pedal slowly falls, the possible reason of it are leakages of brake liquid. It is necessary to examine all brake system on existence of thinnesses. To check level of brake liquid in a tank. Small decrease in level of liquid can be caused by normal wear of brake shoes. Strong falling of level can testify to existence of leakages of liquid. In a brake hydraulic actuator are possible both internal, and external leakages of liquid. If level of brake liquid normal, it is necessary to check length of a pusher of the vacuum amplifier. If the length of a pusher differs from norm, it is necessary to adjust or replace a pusher. To check adjustment of working brake system and the parking brake.

Mentioned below checks of the main brake cylinder do not guarantee detection of all possible malfunctions of knot.

1) To check existence of cracks of the case of the cylinder and traces of brake liquid on an external surface of the cylinder. Falling of drops of brake liquid testifies to leaks. Cylinder moistening outside is admissible.

2) To check existence of jammings in a drive of a pedal and length of a pusher. If malfunctions it is not revealed, to dismantle and disassemble the cylinder. To check a condition of consolidations of the cylinder and pistons. If consolidations inflated or were extended, the possible reason of it is the brake liquid improper or polluted by extraneous substances. In this case bypass мо completely to disassemble the cylinder and to wash out all details. Rubber details are subject to obligatory replacement. It is necessary to wash out all hydraulic actuator of brake system also.

Application of unrecommended brands of brake liquids, and also hit in a hydraulic actuator of mineral oil or water leads to decrease in temperature of boiling of working liquid and failure of rubber consolidations.

Swelling of external sealing covers on the main thing or wheel brake cylinders testifies to failure of internal rubber consolidations.