Page 2 - 2017-v.2-Part 4(EN)

Contents Page

Foreword ........................................................................................................................................................................................... iii
Introduction ........................................................................................................................................................................................ v
1 Scope ................................................................................................................................................................... 1
2 Normative references .................................................................................................................................... 1

3 Terms and definitions ................................................................................................................................... 1
4 Test methods ..................................................................................................................................................... 1
4.1 Brake lever grip dimensions ......................................................................................................................... 1
4.2 Brake levers — Position of applied force ................................................................................................. 5
4.3 Brake-block and brake-pad assemblies — Security test .................................................................. 7
4.4 Hand-operated braking-system — Strength test ................................................................................. 7
4.5 Back-pedal braking system — Strength test .......................................................................................... 7
4.6 Braking performance ....................................................................................................................................... 8
4.7 Brakes — Heat-resistance test ................................................................................................................. 25

Annex A (informative) Explanation of the method of least squares for obtaining the line of best fit
and ±20 % limit lines for braking performance linearity ............................................................. 26
Annex B (normative) Brake performance — endurance test …………………………………….…………….29
Bibliography …………………………………………………………………………………………………………………………….. 30