How to Inspect and Replace Front and Rear Brakes
To remove the brake pads, first remove caliper.
Using a wrench, remove lower caliper mounting bolt
and swing caliper upward. Replacing Front Brakes
Regular periodic maintenance of removing the drums, cleaning the dust, and
adjusting the shoes will give longer life to the brake shoes and the front brake
pads. Very dusty and misadjusted rear brakes can cause premature wear of the
rear shoes, poor stopping ability, and a heavier load on the front brakes,
causing front pads to wear out quicker as well. Procedure
Brake systems are powered by hydraulic brake fluid. Pressure from the
pedal is transferred to the master cylinder. Pressurized fluid is distributed
to the brake lines, hoses, calipers and wheel cylinders. The ABS system is
between the master cylinder and the wheel and is used to control the
pressure depending on wheel speed sensor and other data streams.
The hydraulic brake system consists of the following:
Hydraulic Brake Master Cylinder Fluid Reservoir: Contains supply of brake fluid for the hydraulic brake system.
Hydraulic Brake Master Cylinder: Converts mechanical input force into hydraulic output pressure. Hydraulic output pressure is distributed
from the master cylinder through two hydraulic circuits, supplying diagonally-opposed wheel apply circuits.
Hydraulic Brake Pressure Balance Control System: Regulates brake fluid pressure delivered to hydraulic brake wheel circuits, in order to
control the distribution of braking force. Pressure balance control is achieved through dynamic rear proportioning (DRP), which is a function
of the ABS modulator. Refer to ABS Description and Operation for specific information on the operation of DRP.
Hydraulic Brake Pipes and Flexible Brake Hoses: Carries brake fluid to and from hydraulic brake system components.
Hydraulic Brake Wheel Apply Components: Converts hydraulic input pressure into mechanical output force.
System Operation
Mechanical force is converted into hydraulic pressure by the master cylinder, regulated to meet braking system demands by the pressure
balance control system, and delivered to the hydraulic brake wheel circuits by the pipes and flexible hoses. The wheel apply components
then convert the hydraulic pressure back into mechanical force which presses linings against rotating brake system components.
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