Document ID: chunk:federal_register_of_legislation:F2007C00514:front:0:p16
Version: federal_register_of_legislation:F2007C00514
Segment Type: other
Provision Reference: 
Character Range: 44649–47601

vehicle fitted with a brake system where the secondary brake is applied by the service brake 'Control'.  The vehicle will be deemed to satisfy the requirements of this test if all the parameters specified in Table 1 (Item 5) are met in at least one deceleration mode within a number of deceleration modes which must not exceed 6 for each single type of partial failure, including:
8.5.1.1.                        inoperative 'Antilock System'; and
8.5.1.2.                        inoperative 'Variable Proportioning Brake System'.
8.5.2.                              One single failure must be induced prior to each set of deceleration modes and the vehicle must be restored at the completion of each set.
8.6.                                    Service Brake Laden Effectiveness Test
         A series of tests must be conducted in the manner described in Table 1 (Item 6).  The vehicle will be deemed to satisfy the requirements of this test, if all the parameters specified are met on at least one test within a number of tests that must not exceed 6.
8.7.                                    Laden Secondary Brake Test
         The test procedure and determination of compliance must be as specified in clause 8.4, except that the vehicle must be at 'Maximum Loaded Test Mass 35/...' and the test parameters to be achieved are as described in Table 1 (Item 7).
8.8.                                    Laden Partial Failure Test
         The test procedure and determination of compliance must be as specified in clause 8.5, except that the vehicle must be at 'Maximum Loaded Test Mass 35/...' and the test parameters to be achieved are as described in Table 1 (Item 8).
8.9.                                    Service Brake Fade Test
8.9.1.                              In the case of vehicles in categories MB, MC, MD and NA, 15 successive deceleration tests must be conducted at intervals no greater than 55 seconds apart, such that for an initial speed V 1 and a final speed V 2 (km/h)
         (V12 - V22 ) > 7,500.
8.9.2.                              In the case of vehicles in categories ME, NB and NC, 20 successive deceleration tests must be conducted each not more than 70 seconds after the preceding one and with the total of 20 applications completed within 20 minutes, such that for an initial speed V 1 and a final speed V 2 (km/h)
         (V12 - V22 )  2,700.
8.9.3.                              The initial speed must be maintained for at least 10 seconds prior to each deceleration.
8.9.4.                              If the vehicle is not capable of attaining the initial speed required by clause 8.9.1. or clause 8.9.2, then the speed employed in each mode for the initial speed must be not less than 80 percent of the 'Maximum Laden Vehicle Speed' and the final speed must not be greater than half the initial speed.
8.9.5.                              During all deceleration modes the lowest numerical overall drive ratios as