Why this matters
Use this leader guide before conveyor pinch points & jam clearing work to review the real setup, the controls that need to be in place, and the conditions that should stop the task. Conveyors create predictable nip, shear and entanglement points at rollers, belts, chains, sprockets and transfer areas. A stopped conveyor is not automatically safe: stored material, gravity and unexpected restart can still move the system.
A scenario to discuss
During Conveyor Pinch Points & Jam Clearing, material jams at a roller/transfer point and the conveyor stops. The jam is within arm’s reach. What must be isolated and verified before a guard is moved or anyone reaches into the equipment?
Before work starts
- Walk the conveyor and identify every accessible nip, roller, belt/chain and transfer point in the work area.
- Verify required guards are secured and emergency-stop devices are accessible for operation emergencies.
- Review the normal jam-clearing method so nobody improvises by reaching through or around a guard.
- Identify every energy source and the lockout/isolation point required before a guard is removed or a body part enters the hazard area.
- Keep loose clothing, gloves, tools and cleanup materials from being drawn into moving components.
Common failure points
- Treating the emergency stop as a substitute for lockout during jam clearing or maintenance.
- Reaching around a guard because the jam is visible and only a few inches away.
- Restarting before every affected worker is clear and guards are restored.
Safe work sequence / controls
- Guard rollers, sprockets, belts, chains and transfer points where workers can be caught.
- Use emergency stops for emergencies, not as the sole energy-isolation method for jam clearing.
- Lock out/isolate energy before reaching into a conveyor or removing a guard.
- Keep loose clothing, gloves and tools away from moving conveyor components.
Stop and reset the plan if...
- A guard is missing, loose, damaged or has to be removed to complete the task.
- A jam cannot be cleared using the normal external method.
- The energy-isolation point is unknown or unexpected movement/stored energy cannot be controlled.
Questions worth asking the crew
- Where are the nip points, rollers, belts, chains and transfer points on this conveyor, and which guards keep people out of them?
- What is the normal method for clearing a jam or retrieving material without reaching into moving equipment?
- Where is the emergency stop, who can reach it, and has the crew confirmed what it does and does not isolate?
- What lockout/isolation is required before a guard is removed or anyone reaches into the conveyor?
- Has anyone dealt with a conveyor jam that looked easy to reach? What made the difference between a safe isolation and a risky shortcut?
Make it real on the job
Point out the actual nip/transfer points, emergency stop and lockout/isolation location, then have a crew member explain the jam-clearing sequence.
Close the talk
Before the crew starts, everyone should be able to explain the hazard, point to the control being used today, and name the condition that would make the work stop.
Related authoritative reference
OSHA 29 CFR 1926.300 - Machine Guarding · Open reference ↗
This is a practical discussion guide, not a substitute for required training, a competent person, permits, manufacturer instructions, employer procedures, or applicable federal/state/local requirements. Adapt it to the actual task and conditions.
