Separate conveyor access tasks before choosing safeguards
The same conveyor can need different arrangements at a loading station, a transfer point and a maintenance access route. Start with the task at each location rather than applying one guard layout along the whole line.
Loading and product transfer
Record how products enter and leave, their largest credible dimensions and what an operator does when the flow is irregular. Include the return run, drive and adjoining equipment in the assessment. Product access is not automatically a safe opening for a person to reach through.
Cleaning and inspection
Identify the inspection that can be completed from outside the guarded area and the cleaning that requires access. Review visibility, removable deposits and access to lubrication points when designing the layout. A guard that obstructs every routine task may encourage unplanned removal; the task must be accommodated through a suitable assessed method.
Blockage recovery
List where product can jam and what force or movement can remain after a stop. Have a competent person define the isolation and recovery method. Pressing an emergency stop is not a substitute for isolating hazardous energy where the intervention requires isolation.
Changes to an existing line
A replacement conveyor, larger pack or extra transfer can alter reach, movement and stopping responsibilities. Keep the revised layout together with the interface list and validation record. Check how each connected machine behaves when one section stops, and who controls the return to production.
Review conveyor safety system scope
Further reading: HSE machinery safety, HSE maintenance guidance.