17.A.04 Access.
An employee was killed removing a jam from this equipment - NAVFAC.
- Crossovers or underpasses with safeguards must be provided for passage over or under all conveyors: crossing over or under conveyors is prohibited except where safe passageways are provided.
- Whenever conveyors pass adjacent to, or over, work areas, roadways, highways, railroads, or other public passageways, protective guards must be installed. The guards must be designed to catch and hold any load or material that may fall off or become dislodged from the system.
- Where conveyors are operated in tunnels, pits, and similar enclosures, ample room must be provided to allow safe access and operating space for all personnel.
This emergency pull cord is too slack - MSHA.
17.A.05 Operating controls.
- Unless the design, construction, and operation of a conveyor is clearly non-hazardous to personnel, emergency stop buttons, pull cords, limit switches, or similar emergency devices must be provided at the following locations:
- (1) Operator stations;
- (2) Loading arms;
- (3) Transfer points; and
- (4) Other potentially hazardous locations on the conveyor path not guarded by location or guards.
- Emergency stop buttons must be red in color, easily identifiable and readily accessible. They must not be protected with collars or other devices which might make it difficult to activate.
- Emergency stop devices must act directly on the control of the conveyor concerned and must not depend on the stopping of any other equipment. If a multi-conveyor system, the emergency stop must stop all conveyors that are tied together.
- Emergency stop devices must be installed so that they cannot be overridden from other locations.
- Starting controls must be GREEN in color and protected from accidental activation.
- All controls must be clearly labeled to identify their function.
- Conveyor controls must be arranged so that in case of an emergency stop, manual reset or restart is required at the location where the emergency stop was initiated to resume conveyor operations.
17.A.06 Control stations must be arranged and located so that the operation of the equipment is visible from them.
Knowledge Check Choose the best answer for the question.
17-3. Which of the following statements is FALSE concerning emergency stop buttons for conveyors?
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