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Investors Relations & Haldex information

Trailers the Forgotten Ones - Pt. 6



The hostler valve is located on the trailer so you can use it to park and release trailer brakes

  1. True

  2. False


The brake-away-protection system will prevent the dynamiting of spring brakes on the towing trailer in case of a towed or rear trailer break away

  1. True

  2. False


Between the pintle hook lock-out chamber and the emergency line you should plumb what?

  1. One-way check and flipper valve

  2. Pressure protection and flipper valve

  3. One-way check and pressure protection valve

  4. None of the above


The purpose of speed-up valves is to _______.

  1. Speed-up brake release

  2. Prevent spring brake dynamiting

  3. Rejuvenate a weakening control signal as it travels down the train

  4. None of the above


Speed-up valves are commonly referred to as:

  1. 0 crack pressure valves

  2. QR valves

  3. Spring brake control valves

  4. None of the above


You should not use straight jumper lines to connect vehicles in a train because coiled cables are best for air transmission timing.

  1. True

  2. False


Quick release gladhands are only for the emergency line not the control line.

  1. True

  2. False


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