The inspection of the braking system is an absolute necessity to ensure safe driving conditions. The entire braking system is checked during the brake inspection. This includes the following: brake pedal, brake fluid, brake hoses and hoses and brakes (disc brakes or drum brakes). Parking brakes should now also be checked. Checking the operation of the brake system begins with the brake pedal. There are three things to check for the brake pedal. It is necessary to check the height of the brake pedal, as well as the measurement of free play and the reserve distance of the brake pedal. All these measures should be compared with the vehicle manufacturer's specifications.
The height of the brake pedal is the size of the brake pedal on the ground when the brake pedal is at rest. Free play means that when the pedal is pressed, the brakes are not applied immediately. Free play is measured by the movement of the pedal from rest until the brakes are applied. Actually, pedal reproduction is required, but it is important that the reproduction measurement complies with the manufacturer's specifications. Finally the reserve distance of the brake pedal. This is the distance between the pedal and the ground when the brakes are applied.
Therefore, if the pedal height is not correct or in case of excessive play, the bearings and return springs can be a problem. If the reserve distance is not correct, there may be problems with the cylinder rod. Therefore, the brake fluid should be checked.
The brake fluid provides the power necessary to activate the jaws and compress the pads or jaws. Brake fluid is stored in the main cylinder and experts recommend replacing it every year or two to make sure the brakes work properly. In addition to checking the brake fluid, the hoses and hoses should be checked. If the main cylinder is low, there may be a leak somewhere in the pipes. Hoses and hoses can be checked visually for cracks and the current braking system can be checked for moisture. You can also place the case under the vehicle and press the brakes several times.
Then check the box to see if there are leaks. Finally, the brakes are checked. To check the brakes, the front and rear wheels are removed for a better view of the brakes. There are two types of brake groups: disc brakes and drum brakes. First, let's talk about the disc brake inspection.
Three things must be inspected on the disc brakes: the brake pads, the brake rotor and the caliper. The brake pads are located on each side of the rotor and are effectively pressed against the rotor to stop the wheel and the vehicle. The blocks create the friction necessary to stop the vehicle. The bearings are subject to excessive wear control to ensure that the metal does not rub against the metal.
The brake rotor is the iron disk connected to the tire hub. Rotors should be inspected for excessive wear. The brake pads and rotors have adequate wear patterns and if a brake pad needs to be replaced, the rotor must operate evenly. A rotor can be worked regularly very frequently before it is worn. Each rotor must have a certain width written on the rotor. If the rotor is worn, it must be replaced. The rotor must also be inspected for thermal cracks or other damage.
The last part of a disc brake is the bracket. The caliper is a device on the top of the rotor and contains the two brake pads. There are two types of parentheses: mobile brackets and fixed brackets. A floating caliper can compress and contain only one piston. When the brakes are applied, the brake fluid pushes the piston toward the pad and applies pressure to the rotor. The other side of the clamp presses the other pad against the rotor to stop the wheel and the vehicle. A fixed clamp does not move; therefore, it contains two pistons on each side of the rotor. When the brakes are applied, the brake fluid pushes the two pistons into each pad that presses on each side of the rotor to stop the wheel and the vehicle. The pliers must be inspected for any leaks.
The second type of brake is the drum brake. Drum brakes are usually found on the rear wheels due to the need for a parking brake. Parking brakes are much easier to add to a drum brake than to a disc brake. Drum brakes contain different parts: brake shoes that look like pads; a support plate that holds everything together and is fixed to the shaft; brake drum, similar to brake rotor; wheel or brake cylinder containing the pistons; return springs; and a self-adjusting system that will adjust the position of the pad when the brake is not inserted. When the brakes are pressed, the brake fluid forces the pistons to press against the brake shoes that rest on the drum, which stops the wheel and the vehicle.
When the brake is released, the return springs return the jaws to their original position. The brake shoes are very close to the drum, so when the brake pedal is pressed, the brakes are applied immediately. Over time, the surface of the jaws deteriorates and the position of the soles must be adjusted to avoid having to travel a greater distance to make contact with the drum. If the drum brakes did not have an automatic adjustment system, it is necessary to press the brake pedal further before applying the brakes.
During the inspection of a drum brake, the number of components to be tested is much greater than with a disc brake. Excessive wear of the brake pads should be checked to avoid damaging the drum. Brake drums, such as the rotor, must be checked for excessive wear or cracks. They must also be processed without problems when replacing a pad and can only be processed so far; therefore they must be replaced. Wheels or brake cylinders should be inspected for leaks. The return springs must be checked, because if they are too worn and the brake shoes do not return to their original position, away from the drum, they may be exposed to rapid and excessive wear.
Finally, the self-regulating system should be inspected to ensure that it is clean and well lubricated. Parking brakes should now also be checked. A parking or emergency brake should be inspected to verify that the cables and levers are working properly. The parking brakes work separately from normal hydraulic brakes. They are a necessity to prevent your vehicle from climbing a hill when parked. It should also work well if the usual hydraulic brakes fail.
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