(6)Wagons. - (a) Every wagon (and passenger coach if any) shall be provided either with self-acting brakes capable of being applied continuously or with efficient hand brakes which shall be maintained in good working order. The hand brakes shall be capable of being applied by a person on the ground and fitted with a device for retaining them in the applied position.(b)No wagon shall be kept standing within 3 metres of any authorised crossing.(c)No wagon shall be moved with the help of crowbars or pinch bars.