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Division 2.3.2 Symbols

United Kingdom

Original text. Later amendments are not shown.

  1. 2.3.2.1.

    ‘pR1’ represents the maximum system operational pressure (cut-out pressure) in the energy storage device specified by the manufacturer.

  2. 2.3.2.2.

    ‘pR2’ represents the pressure after four full-stroke actuations of the tractor's service braking system control device.

  3. 2.3.2.3.

    ‘tR’ represents the time required for the pressure to rise from pR2 to pR1 in the energy storage device without application of the service braking system control device of the tractor.