Document ID: chunk:federal_register_of_legislation:F2007C00514:front:0:p7
Version: federal_register_of_legislation:F2007C00514
Segment Type: other
Provision Reference: 
Character Range: 18924–21984

to minimise the possibility of inadvertent release of the brake.  This requirement will be deemed to be satisfied if at least 2 separate and distinct movements are necessary to disengage the parking brake.
5.3.3.                              The 'Parking Brake System 35/..' must incorporate devices which compensate for any increased movement of its components arising from wear.  Such devices must themselves contain provision for securing them throughout their working range in any position to which they may be adjusted to or to which they may themselves automatically adjust.
5.3.4.                              The 'Control' by which the 'Parking Brake System 35/..' is actuated must be located so that it is readily accessible to the driver in the normal driving position.
5.3.5.                              On every motor vehicle equipped to tow a trailer which uses air at positive pressure the operation of the 'Parking Brake System 35/..' must cause the pressure in the 'Supply Line 35/...' to drop below 35 kPa.
5.3.6.                              Once the 'Supply Line 35/...' pressure has dropped below 35 kPa in accordance with clause 5.3.5 the 'Supply Line 35/...' must be restored to normal when the 'Parking Brake System 35/..' is released.
5.3.7.                              An additional 'Control' may be fitted to provide for the independent release of the trailer parking brakes.  Once the 'Supply Line 35/...' pressure has dropped below 35 kPa in accordance with clause 5.3.5 this control must restore the 'Supply Line 35/...' to the normal condition provided that:
5.3.7.1.                        two independent actions are required and
5.3.7.2.                        the engine is running and
5.3.7.3.                        the 'Control' must automatically reset to provide for operation of the 'Parking Brake System 35/..' as described in clause 5.3.5 no later than upon the next application of the 'Control' for the 'Parking Brake System 35/...'.
5.4.                                    Parking Brake Indicator Lamp
5.4.1.                              If the vehicle is not fitted with a 'Spring Brake System' or a 'Parking Brake System 35/..' utilising 'Lock Actuators', it must be provided with a lamp which indicates that the parking brake is engaged.
5.4.2.                              The lamp may be common with or distinct and separate from any 'Service Brake System' failure 'Visible Indicator' lamp.
5.4.3.                              In the case of a common lamp, the lamp must be labelled with the word "BRAKE"; or the symbol for "BRAKE FAILURE" - specified as Number 4.31 in the ISO document referred to in clause 5.2.10.
5.4.4.                              In the case of a distinct and separate lamp the lamp must be labelled with at least the words "PARK BRAKE" or "PARKING BRAKE"; or the symbol for "PARKING BRAKE" specified as Number 4.32 in the ISO document referred to in clause 5.2.10 placed either directly on the lens or adjacent to it in such a way that the label is illuminated by the same light source