Carry out routine heavy vehicle trailer maintenance

​This standard is about conducting routine examination, adjustment and replacement activities as part of the periodic servicing of heavy vehicle trailers.

P5.1 manufacturer's approved examination methods

P5.2 your workplace procedures 

P5.3 health, safety and environmental requirements 

P6 ensure your examination methods identify accurately any heavy vehicle trailer system and component problems falling outside the servicing schedule specified 

P7 carry out adjustments, replacement of heavy vehicle trailer components and replenishment of consumable materials following the manufacturer's current specification for: 

P7.1 the particular service interval 

P7.2 working methods and procedures 

P7.3 use of equipment 

P7.4 the tolerances for the vehicle 

P8 where system adjustments cannot be made within the manufacturer's specification, record the details accurately and take action which complies with the customer's instructions  

P9 work in a way which minimises the risk of damage to the trailer and its systems 

P10 use suitable testing methods to evaluate the performance of all replaced and adjusted components and systems accurately, prior to returning the heavy vehicle trailer to the customer 

P11 promptly report any problems or issues relating to the heavy vehicle trailer's condition or conformity to the relevant person(s)

P12 ensure your maintenance records are accurate, complete and promptly passed to the relevant person(s)  in the format required 

P13 complete all heavy vehicle trailer maintenance activities within the agreed timescale 

P14 promptly report any anticipated delays in completion to the relevant persons(s)   

K4.1 recording heavy vehicle trailer maintenance work and any variations from the original specification 

K4.2 the referral of problems 

K4.3 reporting delays to the completion of work 

K5 the importance of documenting heavy vehicle trailer maintenance information 

K6 the importance of working to agreed timescales and keeping others informed of progress 

K7 the relationship between time and costs 

K8 the importance of promptly reporting anticipated delays to the relevant person(s)  

Use of technical information *

K9 how to find, interpret and use sources of *technical information for scheduled maintenance activities, including on-board diagnostic displays 

K10 the importance of using the correct sources of technical information *

K11 the purpose of and how to use identification codes 

Heavy vehicle trailer system operation 

K12 how suspension systems, steering systems, braking systems, non-electrical body systems, hubs, wheels and tyres operate for the type of heavy vehicle trailer on which you work 

K13 how lighting systems and ancillary equipment operate for the type(s) of heavy vehicle trailer on which you work

K14 the operating specifications and tolerances for the type(s) of heavy vehicle trailer on which you work

Routine maintenance requirements 

K15 how to conduct scheduled, routine *examination methods and assessments against heavy vehicle trailer specifications 

K16 check and make adjustments relevant to heavy vehicle trailer chassis area, electrical area and body 

K17 how to replenish and replace routine service components and materials *

K18 how to recognise cosmetic damage to *components and units outside normal service items 

K19 how to identify codes and grades of lubricants 

K20 how to work safely avoiding damage to the trailer and its systems 

​1. Sources of technical information are: 

1.1. heavy vehicle trailer technical data

1.2. schedules of inspection

1.3. regulations

2. Examination methods are: 

2.1. sensory

2.2. functional

2.3. measurements

2.4. performance

3. Assessments are for:

3.1. malfunction

3.2. damage

3.3. leaks (depending on body type)

3.4. wear

3.5. security

3.6. condition and serviceability

3.7. conformity

3.8. necessity for adjustment(s)

4. Adjustments are:

4.1. clearances

4.2. gaps

4.3. settings

4.4. alignment

4.5. pressures

4.6. tension, 

4.7. speeds 

4.8. levels

5. Components and materials include:

5.1. ancillary drives

5.2. belts

5.3. brake linings and pads

5.4. filters

5.5. lubricants

5.6. fluids