Forklift Operator Training and Certification in Canada: A Practical Guide

Forklift Operator Certification — Part 1: Theory & Written Test: Glossary

12 key terms, defined from the course material.

Counterbalance forklift: The common sit-down forklift whose rear weight offsets the load on the forks; its stability depends on keeping the combined centre of gravity inside the wheel base.
Stability triangle: The three-point support pattern of a counterbalance truck — the two front wheels and the centre of the rear (steer) axle. The load stays stable while the combined centre of gravity stays inside this triangle.
Load centre: The horizontal distance from the face of the forks to the centre of gravity of the load. Rated capacity assumes a standard load centre (commonly 24 in / 600 mm).
Load-rating chart (data plate): The manufacturer’s capacity plate affixed to the truck showing its rated capacity at given load centres, lift heights and configurations. Manitoba requires it to be present and legible (Reg 217/2006 s. 22.30).
De-rating: The reduction in a truck’s safe capacity when the load centre, lift height, or an attachment differs from the rated conditions. Always confirm against the data plate.
Attachment: Any device fitted in place of or in addition to standard forks (clamps, rotators, side-shifters). Attachments add weight and shift the load centre, reducing capacity.
Mast: The vertical assembly that raises and lowers the forks. Raising a load lifts the centre of gravity and reduces stability.
Overhead guard: The frame above the operator that protects against falling objects. It is not a rollover structure — the seat belt is what keeps the operator within the protective zone in a tip-over.
Powered lift truck classes (I–VII): The industry classification of powered industrial trucks by power source and design (e.g. electric counterbalance, electric narrow-aisle, internal-combustion, rough-terrain). Operator competency is specific to the type being operated.
Operator certificate (Manitoba): In Manitoba, the employer-issued certificate confirming a worker has been trained, tested and evaluated as competent to operate a powered lift truck (Reg 217/2006 s. 22.29). It is not a government licence.
Practical evaluation: A hands-on assessment in which a designated skilled evaluator confirms the operator can safely perform the required tasks, per the Manitoba Code of Practice.
Pre-use (circle) inspection: The operator’s visual check of the truck and surrounding area before operating, to confirm it is safe and no one will be endangered (Reg 217/2006 s. 22.15).