Upshift and drive to a safe place.
Downshift and drive to a safe place.
Stop and safely park as soon as possible.
Park on a slight incline, drain off air pressure, set the parking brakes, and check for movement.
Wait for normal pressure, release the parking brake, move the truck forward slowly, and firmly step on the brake.
Park on level ground, chock the wheels, engage the parking brake, and shut the engine off.
Turns on the brake lights to warn drivers behind you.
Tells you when you need to use your emergency brakes.
Tells you when the air brake system is low on pressure.
Rid the wet tank of alcohol that condenses and sits at the bottom.
Eliminates the need for daily tank draining.
Reduce the risk of ice in air brake valves in cold weather.
Less than 100 feet.
More than 300 feet.
The brake drums will not be fully pressurized.
Either the front or rear brakes will not be fully operational.
The manual slack adjusters on the S-cam brakes are not set properly.
As little as possible.
To hold your speed when going downhill.
Any time the vehicle is parked.
Is not affected by the condition of the service brakes.
Depends on the service brake being in adjustment.
Increases when the service brakes are hot.
Press hard on the brake pedal and apply full hand valve until you stop.
Use light, steady pressure on the brake pedal.
Brake hard, release the brakes when the wheels lock, and reapply the brakes when the wheels start rolling.
Brake drum or disc.
When air is pumped into the air tanks.
The speed of the air compressor.
Air pressure applied to the brakes.
You apply the brakes as hard as you can without locking the wheels.
You brake as hard as you can, release the brakes when the wheels lock, and reapply the brakes when the wheels start rolling.
You apply the hand valve for one second, then push hard on the brake pedal.
A loss of brake air pressure.
A build up of brake air pressure.
No change in brake air pressure.
Controls the speed of the air compressor.
Controls the air pressure applied to put on the brakes.
Is connected to slack adjusters by a series of rods and linkages.
Can steer hard while braking hard.
Use the hand brake first.
Can steer your vehicle in a straight line.
A modulating control valve.
You have to push the brake pedal harder to control speed on a downgrade.
The brake pedal feels "spongy" when you apply pressure.
Your speed increases when you reduce pressure on your brake pedal.
1 psi in one minute.
2 psi in 45 seconds.
3 psi in one minute.
During your first en route inspection.
Immediately after you stop driving.
Use of spring brakes.
Use of the front brake limiting valve.
Braking effect of the engine.
Stop the vehicle and continue only when the system is fixed.
Reduce your speed, and test the remaining system while driving.
Reduce your speed, and drive to the nearest garage for repairs.
An air supply pressure gauge.
An air use gauge.
A backup hydraulic system.
Have in the air tanks.
Have in the modulating control valve.
Are applying to the brakes.