Competency in Inspection Repair and Replacement of Commercial Vehicle Tyres — City & Guilds Limited End-Point Assessment Motor Vehicle & Transport Revision
This element covers the essential skills and knowledge for inspecting, repairing, and replacing commercial vehicle tyres, including safety protocols, tread
Topic Synopsis
This element covers the essential skills and knowledge for inspecting, repairing, and replacing commercial vehicle tyres, including safety protocols, tread regrooving, and accurate record-keeping. Learners develop competence in assessing tyre condition, identifying defects, and making appropriate recommendations to ensure vehicle roadworthiness and compliance with regulations. Mastery of these tasks is critical for minimising vehicle downtime and enhancing operational safety in the commercial transport sector.
Key Concepts & Core Principles
- Health and Safety Regulations: Understanding COSHH, LOLER, and PUWER regulations, as well as risk assessments and safe working practices specific to vehicle fitting environments.
- Vehicle Lifting and Support: Correct use of vehicle lifts, jacks, axle stands, and ramps to ensure stability and safety when working under vehicles.
- Wheel and Tyre Fitting: Procedures for removing, fitting, balancing, and inflating tyres, including torque settings for wheel nuts and understanding tyre markings (e.g., speed ratings, load indices).
- Brake System Components: Inspection and replacement of brake pads, discs, drums, and shoes, including bleeding hydraulic systems and adjusting handbrakes.
- Exhaust and Steering Systems: Fitting and aligning exhaust components, and replacing steering linkage parts such as track rod ends and ball joints, ensuring correct geometry.
Exam Tips & Revision Strategies
- In any practical assessment, narrate your actions safely – verbally highlight each safety check and procedure to demonstrate underpinning knowledge even if not explicitly requested.
- For the record-keeping task, always use the correct tyre terminology (e.g., 'cords exposed', 'blister', 'tread separation') and reference the relevant industry standard or manufacturer’s data where possible.
- During inspection exercises, systematically work around each wheel/tyre assembly and mention both obvious and subtle defects; imagine you are preparing a report for a fleet manager who will act on your recommendations.
- When asked to make recommendations, always link them to legal requirements, cost implications, and vehicle downtime – this shows vocational competence beyond basic hands-on skills.
- Always verbalise your safety checks and the reasoning behind your decisions to the assessor, as this demonstrates underpinning knowledge and risk awareness.
- Use the service information or tyre placard to confirm correct inflation pressures and load ratings, and show the assessor where you found this data.
- When regrooving, practice on scrap tyres to achieve a consistent depth and pattern follow; during assessment, check the blade setting frequently to avoid over-cutting.
- Document every step clearly on the job record, including ‘no fault found’ when appropriate, to evidence thorough inspection and compliance with City & Guilds assessment criteria.
Common Misconceptions & Mistakes to Avoid
- Learners often confuse the legal minimum tread depth for commercial vehicles (1.0 mm over the central three-quarters) with that for passenger cars (1.6 mm), leading to premature tyre replacement or unsafe decisions.
- A frequent error is neglecting to inspect the inside dual tyres on commercial vehicles, missing hidden damage or mismatched pressures.
- During regrooving, novices often cut too deeply, exposing the belt package and rendering the tyre illegal and dangerous.
- Many students fail to tighten wheel fixings in the correct criss-cross sequence and to the specified torque, risking wheel detachment.
- Commonly, information recorded is insufficient, lacking precise tyre size, load index, speed symbol, or DOT code, which hinders traceability and correct recommendations.
- Failing to fully deflate the tyre before demounting, leading to risk of bead explosion or rim damage.
Examiner Marking Points
- Award credit for demonstrating a thorough risk assessment and use of correct personal protective equipment (PPE) and safety barriers throughout all tyre service activities.
- Expect clear evidence of systematic inspection procedures, including measurement of tread depth, identification of sidewall damage, and assessment of valve condition against manufacturer and legal standards.
- Credit must be given for correct selection and use of specialist tools (e.g., bead breakers, torque wrenches) during removal and replacement, with strict adherence to safe working loads and jacking procedures.
- When regrooving, look for accurate identification of suitable tyres, correct use of regrooving equipment, and maintenance of the minimum base rubber thickness as per legislation.
- Marking evidence should include accurate completion of job sheets, recording of tyre specifications, fault details, actions taken, and clear, justified recommendations for repair, replacement, or regrooving.
- Award credit for demonstrating safe working practices including correct use of PPE, safe jacking and axle stand positioning, and isolation of the vehicle before commencing work.
- Award credit for accurately measuring and recording tread depth across the tyre circumference, checking for uneven wear, sidewall damage, and bead condition, using calibrated tools.
- Award credit for correctly demounting the tyre from the rim without causing damage, inspecting the rim and valve, and selecting the appropriate replacement tyre, tube or repair method according to manufacturer guidelines and legal limits.