Competence in Removing and Replacing Caravan Chassis and Running Gear Components
This subtopic develops the practical competence required to safely remove and replace caravan chassis and running gear components, including axles, suspension units, braking systems, and coupling heads. Learners will apply health and safety procedures, interpret technical manuals and diagrams, select appropriate tools, and carry out component replacement to manufacturer specifications. The unit also emphasizes accurate record-keeping and the ability to make informed recommendations for further repairs or maintenance.
Assessment criteria
Topic Overview
The IMI Level 2 Diploma in Caravan and Motorhome Maintenance and Repair is a vocational qualification designed for individuals seeking to become skilled technicians in the leisure vehicle industry. This diploma covers essential knowledge and practical skills required to maintain, service, and repair caravans and motorhomes, including chassis systems, bodywork, electrical systems, gas systems, and water systems. It is a comprehensive programme that prepares learners for entry-level roles in dealerships, service centres, or independent workshops.
This qualification is crucial because the caravan and motorhome sector is a significant part of the UK tourism and leisure industry, with thousands of vehicles requiring regular maintenance and repair. Technicians must understand the unique construction and systems of these vehicles, which differ from standard cars. The diploma ensures that learners can work safely and competently, adhering to industry standards and regulations, such as those from the NCC (National Caravan Council) and Gas Safe Register. By mastering these skills, students can progress to advanced qualifications or specialise in areas like gas appliance servicing or body repair.
The diploma integrates theoretical knowledge with hands-on practical assessments, covering topics such as health and safety, tools and equipment, vehicle systems diagnostics, and customer service. It is structured to build confidence and competence, with each unit focusing on a specific aspect of maintenance and repair. Successful completion demonstrates to employers that a technician is capable of delivering high-quality work, ensuring customer satisfaction and vehicle safety.
Key Concepts
Core ideas you must understand for this topic
- →Health and Safety: Understanding COSHH, risk assessments, and safe working practices when handling gas, electricity, and heavy components.
- →Chassis and Running Gear: Knowledge of chassis construction, suspension systems, brakes, and wheel bearings specific to caravans and motorhomes.
- →Electrical Systems: 12V and 240V systems, including battery charging, inverters, and mains hook-up; fault-finding using multimeters.
- →Gas Systems: LPG installation, pipework, regulators, and appliance safety checks; awareness of Gas Safe Register requirements.
- →Water Systems: Fresh and waste water systems, pumps, taps, and drainage; winterisation and anti-freeze procedures.
Learning Objectives
What you need to know and understand
- Be able to work safely when carrying out chassis and running gear removal and replacement activities, Be able to use relevant information to carry out the task, Be able to use appropriate tools and equipment, Be able to remove and replace caravan chassis components, Be able to record information and make suitable recommendations
Assessment Criteria
Key criteria assessors look for in your portfolio
- Award credit for demonstrating safe working practices throughout, including correct use of personal protective equipment (PPE), vehicle support systems (axle stands, ramps), and isolation of services (electricity, gas, hydraulics).
- Award credit for accurately interpreting vehicle technical data, service sheets, and removal/refitting procedures, and applying them during the task.
- Award credit for selecting and correctly using appropriate hand tools, power tools, and measuring equipment (e.g., torque wrenches, Vernier calipers) without damage or misuse.
- Award credit for competent removal and replacement of the specified chassis or running gear component, ensuring no collateral damage, correct alignment, and fastenings torqued to manufacturer specifications.
- Award credit for completing accurate job records, including a description of work carried out, parts replaced, torque values applied, and clear recommendations for any further action required.
Assessment Guidance
Guidance for achieving higher grades
- 💡Demonstrate a ‘safety-first’ approach by verbally explaining or physically performing a risk assessment before starting, and consistently reference the manufacturer’s service information during the task.
- 💡Practice using torque wrenches and other precision setting tools until you can set and apply torque values confidently and accurately; this is a common observation point.
- 💡After completing the replacement, methodically re-check all fasteners, fluid levels, and functional tests (e.g., brake operation) before signing off the job – examiners will look for this diligence.
- 💡Always refer to manufacturer specifications when adjusting brakes or wheel bearings – using incorrect torque settings is a common error that loses marks.
- 💡When testing electrical systems, start with the battery condition and connections before moving to complex components – this systematic approach shows methodical thinking.
- 💡In practical assessments, demonstrate your understanding of safety by verbally explaining each step, especially when isolating gas or electrical supplies.
Common Mistakes
Common errors to avoid in your coursework
- Failing to follow the correct tightening sequence or torque settings for wheel fasteners and chassis bolts, leading to uneven clamping force and potential component failure.
- Neglecting to check and adjust critical alignment parameters (e.g., wheel alignment, brake balance) after reassembly, resulting in poor vehicle dynamics or premature tyre wear.
- Overlooking routine safety steps such as securing the caravan against movement, using auxiliary supports, or depressurising brake systems before disconnection.
- Misconception: Caravan and motorhome electrical systems are the same as in cars. Correction: They have both 12V (leisure battery) and 240V (mains) systems, requiring different testing and safety considerations.
- Misconception: Gas appliances can be serviced without specific training. Correction: Gas work must be carried out by Gas Safe registered engineers; the diploma covers theory but not full gas competence.
- Misconception: Tyres on caravans are the same as car tyres. Correction: Caravan tyres have higher load ratings and specific speed ratings; they also age out faster due to lower mileage.
Frequently Asked Questions
Common questions students ask about this topic
Pass / Merit / Distinction Evidence Checklist
How your portfolio evidence is graded for THE INSTITUTE OF THE MOTOR INDUSTRY Competence in Removing and Replacing Caravan Chassis and Running Gear Components
Every vocational unit is marked against named criteria rather than an exam percentage. Your tutor's brief lists the exact codes for this unit — here is what each band is asking you to do.
Demonstrate baseline knowledge, accurate terminology, and core practical application.
Provide detailed analysis, structured explanations, and clear workplace reasoning.
Deliver thorough evaluation, original problem solving, and fully justified recommendations.
Before You Start
Prior knowledge that will help with this topic
- •Basic understanding of vehicle mechanics (e.g., from a Level 1 qualification or GCSE Engineering).
- •Familiarity with hand tools and workshop equipment.
- •Knowledge of health and safety principles in a workshop environment.
Coursework AI Review
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Key Terminology
Essential terms to know
- Be able to work safely when carrying out chassis and running gear removal and replacement activities, Be able to use relevant information to carry out the task, Be able to use appropriate tools and equipment, Be able to remove and replace caravan chassis components, Be able to record information and make suitable recommendations
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