Chapter 9 Flashcards
Explain the purpose of a parking brake.
its used to hold the car in place
Describe why a parking brake should not be used as an “emergency” brake.
The stopping power is much less than service brakes
How do the levers connected to equalizers on some brake systems multiply the driver’s application effort?
there is an intermediate lever under the vehicle body to increase the application force even more
What is the function of an equalizer in a parking brake system?
equalizes, the amount of force that is applied to both cables when the parking brake is engaged
What is the construction of a parking brake cable?
Why are some parking brake cables plastic coated?
This coating protects the metal parts from the elements
How are integral disc parking brakes applied?
Describe how the rear drum brakes are applied to hold the vehicle when it is parked.
Describe how the internal-expanding shoe transmission-type brake works.
How are rods used in some parking brake assemblies?
The parking brake system is not a part of the ______ braking system.
hydraulic
Parking brake actuators may be operated either by _______, ________, or _________.
foot, hand, electronically
The front cable connects the parking brake lever or pedal to the _________, which provides balanced braking force to each wheel.
equalizer
The two most common kinds of caliper-actuated parking brakes are the _________ type and the ________ type.
screw & nut, ball & ramp
The parking brake __________ is hinged at the top of the web of the secondary or trailing shoe.
The parking brake________ connects the primary shoe to the secondary shoe.
Ford’s floating caliper rear disc brakes are the most common example of the ________ and ________parking brake mechanism.
General Motors’ floating caliper rear disc brakes are the most common example of the _________and _________ parking brake mechanism.
Two different types of parking brakes are used with rear disc brakes: auxiliary ______ parking brakes and integral _______ _______ parking brakes.
Technician A says that the parking brakes are provided with equal cable tension by the cable adjusters.
Technician B says that the parking brakes are provided with equal cable tension by the equalizer.
Who is correct?
c
Technician A says that the parking brakes are mechanically operated because mechanical brakes are much more effective than hydraulic brakes.
Technician B says that parking brakes are mechanical because the parking brakes must operate separately from the service brakes.
Who is correct?
b
Technician A says that the usual device that releases the parking brakes whenever the transmission gear selector is in drive or reverse is an electronic parking brake controller.
Technician B says that the device that releases the parking brakes can be a lever controlled by the driver.
Who is correct?
While discussing FMVSS 105,
Technician A says it requires that parking brakes hold the vehicle stationary for 15 minutes on a 30 percent grade in both the forward and reverse directions.
Technician B says FMVSS 105 also specifies that the force needed to apply the parking brakes cannot exceed 200 pounds for foot-operated brakes or 190 pounds for hand-operated brakes.
Who is correct?
Technician A says that some electric parking brakes use a special feature called auto-hold.
Technician B says that some electric parking brakes may be applied by moving the vehicle.
Who is correct?
Technician A says that a nut-and-screw type caliper assembly forces the disc pads against the rotor in a rear disc parking brake system.
Technician B says that a ball-and-ramp type caliper assembly forces the disc pads against the rotor in a rear disc parking brake system.
Who is correct?
Which of the following applies the rear caliper by cables for parking?
Continental Teves
Pedal control
Lever control
All of the above
Technician A says that another name for a rear (drum-in-hat) parking brake is auxiliary drum brake.
Technician B says that another name for a rear (drum-in-hat) parking brake is integral brake.
Who is correct?
Technician A says that it is important to remember that the parking brake is not part of the vehicle hydraulic brake system.
Technician B says that it is important to remember that the parking brake is applied mechanically.
Who is correct?
While discussing console mounted emergency brakes,
Technician A says some lever-operated parking brakes have a separate cable for each rear wheel attached to the control lever.
Technician B says each cable is adjusted separately, and an equalizer is not necessary.
Who is correct?
