The operating skills that are needed to be developed are almost identical to the ones that we just finished discussing with the gyratory. The same operating variables and job perimeters are in effect here as well so I won’t go into them. Before getting into the next chapter there are a few Jaw Crusher Safety tips that I would like to mention.

1. 

   When a crusher breaks a rock, small pieces may become airborne. This is known as PLY ROCK and can be quite dangerous, especially to the eyes. For this reason proper safety glasses or goggles should be worn at all times.

2. When working around crushers stay behind safety barriers, or wear a safety belt, you wouldn’t want to fall in’.
3. Never grab anything from a moving conveyor, especially if you can’t see both ends. That small length of rock bolt may have a rock still bolted to it. If you don’t see the rock in time it you may get pulled into the conveyor. Perhaps that innocent length of cord has a live blasting cap on the other end of it.  Accidentally banging it on a rock could set it off.
4. Never work under a hang up. Bring it down before you start work.
5. Be extra careful digging out crushers. Have a safety man watching and wear a safety belt. When you climb into a crusher the ore may be bridged. If you move the wrong rock the bridge will collapse with you on top of it. Sliding or rolling rock is also a danger when doing this job so be careful.