1. Several machines have been installed using rack and pinion and other types of track-reactive haulage.
2. Moving transmission parts.
Guards designed to protect exposed persons against the risks associated with moving transmission parts (such as pulleys, belts, gears, rack and pinions, shafts, etc.) must be:
- either fixed, complying with requirements 1.4.1 and 1.4.2.1, or
- movable, complying with requirements 1.4.1 and 1.4.2.2.A.
Movable guards should be used where frequent access is foreseen.