Air Brake System Flashcards
Braking System: Equipped with a dual circuit air brake (______ & _____) system
Primary
Secondary
Braking System: Antilock Braking System ______ TO ______
2000 to 2016
Braking System: Auxiliary front axle parking brake system on ______ to ______
2000 to 2016
Braking System: If service brakes alone are used to control vehicle speed, excess heat may be developed causing ______ ______
Brake Fade
Braking System: Apply the brakes in short durations of ___ to ___ seconds rather than a continuous application to reduce possibility of brake fade
5 to 10
Braking System: LTI - When applying the brakes it is recommended that a ______, constant pressure be applied to the brake pedal
Firm
Braking System: LTI - No _______ the brake pedal because it may deplete the brake systems air reservoir supply
Pumping
Braking System: The ______ ______ (NFPA Recommendation) allows the vehicle to be driven even though the the front brake section may not have sufficient air pressure.
Quick Buildup
Braking System: Front axle and the rear axle brake circuits are each supplied air by separate air ________
Reservoirs
Braking System: Safe operation is between ___ & ___ PSI
90 & 120
Braking System: Secondary system supplies air to the ______ axle & Primary system supplies air to the _____ axle
Front
Rear
Braking System: When pressure drops below approximately ___ PSI (LTI) and ___ PSI (Pierce) a warning buzzer & light will come on
65
60
Braking System: As soon as system air pressure increases past ___-___ PSI, the warning light & buzzer will shut-off
65-75
Braking System: LTI air gauge is located on the _____ side of the dash. Primary indicated by ______ needle & Secondary indicated by ______ needle
Right
White
Red
Quick buildup allows pressure to be built up in the ______ brake tanks first to enable release of the parking brakes before the pressure in the front tanks are adequately charged
Rear
Braking System: In an emergent situation, operator discretion must b used as to the need to operate the apparatus when there is less than ___ PSI air pressure in both brake circuits
90
Braking System: Use extreme caution when operating less than ___PSI
60
Braking System: Antilock Brake System 00’-16’ is integral to the air brake system and therefore cannot be turned off or overridden. There is no ___ or ___ switch for the ABS
On or Off
Braking System: When the ABS applies the Telma Retarder is automatically ________
Deactivated
Braking System: Spring brakes are located on the ______ axle
Rear
Braking System: Parking brake circuit is intended to hold vehicle in a parked position only and should ______ be used for normal driving
NEVER
Braking System: If air pressure is reduced to approximately ___ PSI in both systems, the spring brake valve will automatically apply
40
Braking System: When parking apparatus always ______ the wheels; Department policy is always when on scene
Chock
Braking System: Removes moisture & contaminants rom pressurized air, which comes from ________ before it reaches air reservoirs
Compressor
Braking System: Replace Air Dryer every ______ year; Pierce replace every ___ to ___ years
Other
2 to 3
Braking System: Auxiliary Front Wheel Locks 00’-16’ uses air brake system ___ to keep the front brake applied
PSI
Braking System: Auxiliary Front Wheel Locks 00’-16’ If there is an air leak in the air brake system the Aux. front wheel lock may fail, therefore ONLY use when engine is ______
Running
Braking System: DO NOT use ________ ______ because it will not provide adequate lubrication
Lithium Grease
Braking System: S & M lube during _______ ladder test & ______ replacement
Annual
Brake
Low speed switch deactivates when?
2 to 3mph
