Document ID: chunk:federal_register_of_legislation:F2021C00434:body:0:p23
Version: federal_register_of_legislation:F2021C00434
Segment Type: other
Provision Reference: 
Character Range: 68569–72489

means  'Maximum Loaded Test Mass 35/...'  .
"L"         means  'Lightly Loaded Test Mass 35/...'  .
"D"         means transmission control in "drive" position appropriate to test speed.
"N"         means transmission control in "neutral" position
"R"         means transmission control in "reverse" position
"N.A"       means not applicable

        TABLE 2
        GROUP 'AXLE LOAD' LIMITS

        Number of 'Axles'          Tyre Type "a" and                  Group 'Axle Load'
         in 'Axle Group'           Configuration                      Limit (tonnes)
        1
                                   S                                  6.0
                                   D                                  9.0
                                   W1                                 6.7
                                   W2                                 7.0
                                   D                                  10.0 (RFS)
        2
                                   S S                                11.0
                                   S D                                13.0
                                   W 1 W 1                            13.3
                                   D D                                16.5
                                   W2 W 2                             14
                                   DD                                 17.0 (RFS)
        3
                                   S S S                              15
                                   D D D                              20.0
                                   W1 W 1 W 1 or W 2 W 2 W 2          20.0
                                   DDD                                22.5 (RFS)

        Tyre Type "a":

         S Single tyre per wheel

         D Dual tyres per wheel

         W 1  ' Wide Single Tyre'  (375 to 450 mm width)

         W 2  ' Wide Single Tyre'  (over 450 mm width)

         RFS 'Road Friendly Suspension'

       TABLE 3
       CONSTANTS FOR DETERMINING AVERAGE DECELERATION

TEST                                CATEGORY         K 1        K 2
Service Brake Effectiveness Tests   MB, MC, MD, ME   1.0       130
LEG, NA, NB, NC                     1.0              115
Secondary Brake Tests               MB, MC, MD, ME   1.0        65
LEG, NA, NB, NC                     1.67             115
Fade Effectiveness Test              MB, MC, MD, ME  1.25      130
Effectiveness Checks                LEG, NA, NB, NC  1.25      115

    Note: The relationship required by the diagram shall apply progressively for the intermediate states of loading between the maximum mass tested (Figure 1) and the 'LLTM' (Figure 2) states and shall be achieved by automatic means.
APPENDIX 1
       Special Provisions for vehicles incorporating an 'Antilock System'.

       1.1    At speeds exceeding 15 km/h, the wheels on at least one axle in each axle group must remain unlocked when a 'Control' force of 685 N is suddenly applied on the 'Control' or in the case of a 'Control' which solely modulates 'Stored Energy', full stroke of the 'Control' is suddenly applied , when braking from an initial speed of 40 km/h and also from an initial speed of 80 km/h (or greater) on a road surface having approximately uniform surface friction on both sides of the vehicle.

       1.1.1    This test is to be performed with the vehicle laden to 'Lightly Loaded Test Mass 35/...' and again with the vehicle laden to 'Maximum Loaded Test Mass 35/...'.

       1.1.2    Brief periods of locking of the wheels will, however, be allowed but stability must not be affected.

       1.1.3    The general test conditions from part 7 and the particular test conditions from clauses 7.3 and 7.6 including the requirements for deceleration must be used except that the requirements of this clause must be met on each test.

       1.1.4    These tests can be