MEC/Mechanical/TBT-MEC-004

Motor and Drive Installation

MEICA WorksMechanicalMotor and Drive Installation

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Motor and Drive Installation

Toolbox Talk Record

Ref: TBT-MEC-004  |  Issue: 1  |  Date: March 2026
PresenterProject
LocationDate

What?

  • Motors and drives are installed across construction and process sites for pumps, fans, and conveyors.
  • Incorrect installation causes electrical faults, mechanical failure, or serious injury to workers.
  • Motors can weigh several hundred kilograms and require planned lifting and precise alignment.
  • Electrical connections must only be made by competent persons with confirmed isolation in place.
  • Shaft alignment is critical — misalignment causes vibration, bearing failure, and premature wear.
  • Variable speed drives store dangerous voltages even after isolation and power-down.
  • Guards must be fitted to all rotating parts including couplings, belts, and shafts before testing.
  • PUWER 1998 requires that work equipment is suitable, maintained, and safe for use.
  • The Electricity at Work Regulations 1989 apply to all electrical connection work on site.
  • All motors must have examination records and be included in the commissioning plan.

Why?

Prevent electrocutionContact with live terminals or stored energy in drives can cause fatal electric shock.
Avoid crush injuriesHeavy motors require proper lifting plans — dropped loads cause life-changing injuries.
Legal compliancePUWER and Electricity at Work Regulations impose duties on employers and operatives.
Reliable operationPoor installation leads to early failure, costly rework, and project delays.
Do Don't
  • Confirm isolation and lock out tag out before starting electrical work.
  • Use a lift plan for motors too heavy to handle manually.
  • Check alignment using dial gauges or laser tools before coupling.
  • Verify drive capacitors are fully discharged before opening panels.
  • Fit all guards to rotating parts before any test run.
  • Follow manufacturer instructions for torque and clearance settings.
  • Confirm cable sizes and protection match the motor rating.
  • Record all installation checks on the commissioning documentation.
  • Ensure the base or plinth is level and grouted before fixing.
  • Report any damage to motors or drives found during delivery.
  • DON'T work on electrical connections without confirmed isolation and permits.
  • DON'T assume a drive is dead — always prove dead with a voltage tester.
  • DON'T lift motors using unsuitable slings or unrated lifting points.
  • DON'T run a motor without all guards securely fitted.
  • DON'T force shaft alignment — identify and correct the root cause.
  • DON'T bypass thermal overloads or protection devices during testing.
  • DON'T leave tools or debris inside motor housings or terminal boxes.
  • DON'T energise without completing all pre-commissioning checks.
  • DON'T ignore unusual vibration or noise during first run tests.
  • DON'T skip the rotation check — confirm direction matches driven equipment.

See also: MEICA Safety Awareness | Electrical Isolation

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