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DRUM BRAKE SYSTEM DESCRIPTION AND OPERATION
System Component Description
The drum brake system consists of the following:
Drum Brake Shoes
Applies mechanical output force, from hydraulic brake wheel cylinders, to
friction surfaces of brake
drums.
Brake Drums
Uses mechanical output force applied to
Heating and air conditioning system description and operation
Engine Coolant
Engine coolant is the key element of the heating system. The thermostat
controls engine operating coolant
temperature. The thermostat also creates a restriction for the cooling system
that promotes a positive coolant
flow