Used Trailer Inspection Checklist

    Know what to look for before buying a used semi-trailer. This checklist covers critical safety items and common problem areas.

    Documentation & Compliance
    Critical Safety Items
    • Valid safety inspection certificate (Ontario CVIP)
    • Complete maintenance and repair history
    • Clear title with no liens
    • Registration documents
    • Previous inspection reports
    Structural Integrity
    Critical Safety Items
    • Frame and crossmembers for cracks, rust, or damage
    • Floor condition (wood or aluminum)
    • Roof integrity and weather sealing
    • Wall condition (dents, holes, corrosion)
    • Landing gear operation and condition
    • Kingpin wear and condition
    Suspension & Running Gear
    Critical Safety Items
    • Tire condition and tread depth
    • Wheel bearings and seals
    • Brake system (drums, shoes, air lines)
    • Suspension components (springs, air bags, bushings)
    • Axle alignment and condition
    • Hub oil levels and condition
    Lighting & Electrical
    • All marker and clearance lights functional
    • Brake lights and turn signals
    • ABS system and warning lights
    • Wiring condition and connections
    • Reflective tape condition
    Doors & Seals
    • Door operation (swing, roll-up)
    • Door seals and gaskets
    • Locking mechanisms
    • Hinges and rollers
    • Weather tightness test

    Ontario Safety Requirements

    In Ontario, commercial trailers must meet specific safety standards. Key requirements include:

    • CVIP Inspection: Commercial Vehicle Inspection Program (CVIP) inspections are required annually for trailers over 4,500 kg.
    • Pre-trip Inspections: Operators must complete daily circle checks before operation.
    • Maintenance Records: Keep records of all inspections, repairs, and maintenance.

    Always verify the trailer has a current safety inspection before purchase. A valid safety certificate confirms the trailer meets minimum safety standards at the time of inspection.

    Professional Inspection Recommended

    Important Notice

    This checklist is for general reference only. Before purchasing any used commercial trailer, we strongly recommend having it inspected by a certified commercial vehicle technician. A professional inspection can identify issues not visible during a visual walk-around.

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