The device of the brake system with ABS: 1 - front brake caliper; 2 – a brake hose of a forward wheel; 3 - front brake disc; 4 – a brake tube of a forward wheel; 5 - brake fluid reservoir; 6 - block ABS; 7 - vacuum booster of the brake system; 8 - pedal assembly; 9 – brake pedal; 10 - manual cable (parking) brakes; 11 – a brake tube of a back wheel; 12 - brake mechanism of the rear wheel; 13 – rear wheel brake drum; 14 - manual lever (parking) brakes; 15 - sensor signaling a low level of brake fluid; 16 - the main brake cylinder
The brake system consists of front and rear brake mechanisms, brake actuator and parking brake actuator.
The front brake mechanism is disc, with a movable caliper and automatic adjustment of the gap between the disc and pads.
The rear brake mechanism is drum, with self-aligning shoes and automatic adjustment of the gap between the shoes and the drum.
Brake drive foot, hydraulic, two-circuit with diagonal separation of circuits, with vacuum booster and pressure regulator.
Available with an anti-lock braking system (ABS) with electronic distribution of braking forces along the axes of the vehicle.
The parking brake drive is manual, with a cable drive to the brake pads of the rear wheels.
Front brake device: 1 - brake hose; 2 - fitting for pumping the brake; 3 - bolt securing the bracket to the guide pin; 4 - guide pin; 5 - protective cover of the guide pin; 6 - brake shoe guide; 7 - front brake caliper; 8 - front brake pads; 9 - front brake disc
The same in disassembled form: 1 – a bolt of fastening of a bracket to a directing finger; 2 - front caliper; 3 - guide pin; 4 - protective cover of the guide pin; 5 - front brake disc; 6 - front brake pads; 7 - spring clips of pads; 8 - shoe guide
Replacing the front brake pads is described Here
Rear brake device (brake drum removed): 1 – a cup of a clamping spring of a pad; 2 - support stand pads; 3 - clamping spring pads; 4 – a forward block of a back brake; 5 - spacer bar with automatic gap adjuster; 6 - working brake cylinder; 7 - rear brake shoe with lever and fastening for the handbrake cable; 8 - brake shield; 9 - hand brake cable; 10 - lower coupling spring; 11 - ABS sensor
The same in disassembled form: 1 – a cup of a clamping spring of a pad; 2 - clamping spring pads; 3 - support post pads; 4 – a forward block of a back brake; 5 - upper coupling spring; 6 - working brake (wheeled) cylinder; 7 - spacer bar; 8 - spring adjuster clearance; 9 – a back block with the lever of fastening of a cable of a manual brake; 10 - lower coupling spring
How to replace rear brake pads Here.
The mechanism of automatic adjustment of the gap between the pads and the brake drum: 1 - twisted spring of the threaded tip; 2 - threaded tip of the spacer bar; 3 - spring lever of the regulator; 4 - spacer bar; 5 - leaf spring; 6 - ratchet nut
Rear brake pressure regulator (for vehicles with ABS): 1 - anther; 2 - support sleeve; 3 - spring; 4 - pressure regulator pin; 5 - pressure regulator pistons; 6 - body; 7 - thrust washer; 8 - guide sleeve
The rear brake pressure regulator is located between the body and the rear suspension beam.
Hand brake device: 1 – hand brake lever; 2 - front (small) hand brake cable; 3 – cable equalizer; 4 - left rear cable; 5 - right rear cable; 6 - rear brake mechanism; 7 - rear brake drum
Replacing the handbrake cables is described Here.
Brake recommendations
- We recommend that you change the brake fluid at least once every 1.5-2 years. During operation, the brake fluid inevitably absorbs moisture, and its boiling point decreases. With intensive braking, it can boil in the working cylinders, while an air lock appears in them, which will not allow you to create the necessary pressure, and the efficiency of the brake system will deteriorate sharply. Periodically check the brake fluid level. If it began to decline rapidly, then there is a leak - contact the service immediately. If the level is decreasing, but slowly (smoothly during a run of about 10-20 thousand kilometers) and reached a minimum - check the condition of the brake pads.
- It is advisable to change the brake pads / discs if the percentage of wear has reached 70% or more, because. it is impossible to monitor their condition often, and besides, the inner pad wears out more. Maintaining the brake system in good condition is a guarantee of the safety of you and your loved ones on the road.
- Use only original and high-quality spare parts in the brake system of the car. Brake pads of questionable quality may not withstand the heat of emergency braking and will not stop the vehicle. They may have a shorter life, squeak when braking, or wear brake discs quickly. Non-original discs may be «slippery» and do not provide effective braking, they can wear out quickly, warp from slight heating.
- We recommend cleaning the brake calipers together with tire fitting after each winter. Under the influence of winter salts, corrosion and souring of caliper parts occur. Thus, the caliper loses its mobility, especially from the side of the inner pad. The caliper becomes «tight», when the brake pedal is released, its moving part does not return back. The pads lightly and imperceptibly begin to wedge. This leads to premature wear of the brake pads and discs and can lead to brake failure if overheated.
- In winter, do not leave the car on the parking brake for a long time, as the pads may freeze. Better put the car in gear or «parking», if you have an automatic transmission.
- When replacing brake pads, it is recommended to re-groove the brake discs. During operation, not only the pads wear out, but also the discs. A development appears on their surface, due to the ingress of sand and dirt, grooves can form. The surface of the old brake pads completely coincided with the relief of the disc surface. And if new pads are installed on the old disc, then they will not be able to come into contact with the disc with the entire area and the braking efficiency will drop sharply. Some services have equipment that allows you to turn discs without removing them from the machine.