The proper braking technique in a vehicle that has anti-lock brakes exists the same way, regardless of whether you have ABS on the bus, tractor, the trailer, or both.
You must apply the brakes swiftly and firmly, but you must not stab the pedal because that could lock the wheels. Rapidly apply more brake pressure, but if the wheels lock, you must immediately let off some of the pressure, then apply it again. It is only a slight softening; do not abruptly release the brakes and then apply them again.
Driving an ABS-equipped car requires you to brake the same manner you always have. or put another way
This technique only has one exception. If you are operating a straight truck or combination with functional ABS on all axles, you can completely apply the brakes during an emergency stop.
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