MEC/General/TBT-MEC-010

Belt and Chain Drive Safety

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Belt and Chain Drive Safety

Toolbox Talk Record

Ref: TBT-MEC-010  |  Issue: 1  |  Date: March 2026
PresenterProject
LocationDate

What?

  • Belt and chain drives transmit power between shafts and are common in pumps, conveyors, and plant.
  • Moving belts and chains create entanglement, drawing-in, and trapping hazards.
  • PUWER 1998 requires that dangerous parts of machinery are guarded to prevent contact.
  • Guards must be fixed or interlocked so the drive stops if the guard is opened.
  • Loose clothing, gloves, hair, and lanyards can be caught in unguarded drives.
  • Belt drives can throw a broken belt at high speed, causing serious impact injuries.
  • Chain drives can snag fingers and hands into sprockets within a fraction of a second.
  • Maintenance and adjustment of drives must only be done after isolation and lock-off.
  • Regular inspection detects wear, misalignment, and tension problems before failure occurs.
  • Incidents involving belt and chain drives are often severe, resulting in amputation or death.

Why?

Prevent entanglementMoving belts and chains can draw a person in faster than they can react, causing amputation or fatal injuries.
Legal requirementPUWER 1998 requires employers to ensure dangerous machinery parts are effectively guarded.
ReliabilityProper inspection and maintenance prevents unexpected breakdowns that can cause uncontrolled energy release.
Do Don't
  • Ensure all belt and chain drives are fitted with secure fixed or interlocked guards
  • Isolate and lock off the drive before any maintenance or adjustment work
  • Inspect belts and chains regularly for wear, tension, and alignment
  • Replace worn or damaged belts, chains, and sprockets promptly
  • Report any missing, damaged, or poorly fitted guards immediately
  • Tie back long hair and remove loose clothing before working near drives
  • Follow the permit to work procedure for maintenance on guarded machinery
  • Confirm the guard is securely refitted and interlocks function after maintenance
  • Train all operatives on the hazards of rotating machinery before they work nearby
  • Keep the area around belt and chain drives clean and free from obstructions
  • DON'T operate machinery with belt or chain drive guards removed
  • DON'T reach into or past guards to adjust running belts or chains
  • DON'T wear loose clothing, dangling jewellery, or unsecured gloves near drives
  • DON'T attempt to re-tension or align drives while the machine is running
  • DON'T defeat or bypass interlocked guards for any reason
  • DON'T restart machinery after maintenance until guards are fully refitted
  • DON'T ignore unusual noises, vibrations, or smells from belt or chain drives
  • DON'T allow untrained personnel to carry out drive maintenance tasks
  • DON'T assume isolation is in place — verify it personally before starting work
  • DON'T use cable ties or improvised fixings to hold guards in position

See also: MEICA Safety Awareness | LOTO Awareness
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