b) any gears, drive belts, pulleys, chains or other drive mechanisms which create a pinch point
or could injure a user or trap loose clothing;
c) any shaft which rotates more than 2 revolutions during its total cycle of operation.
NOTE 1 It is usual for moving parts associated with changing the configuration of the wheelchair to stop automatically when the control input is removed.
NOTE 2 For wheelchairs with such moving parts which do not stop automatically when the control input is removed, information should be provided which will explain the possible hazards to the user, prescriber and/or assistant.