Overhaul light vehicle mechanical units

This NOS is about the overhaul of light vehicle mechanical units, for example, engines, gear boxes, final drive assemblies, steering units and components, suspension units and components.  The unit covers dismantling, assessment, repair, replacement or adjustment of internal components together with re-assembly and testing.

P6.1 manufacturers' instructions

P6.2 recognised repair methods

P6.3 your workplace procedures

P6.4 health, safety and environmental requirements

P7 work in a way which minimises the risk of:

P7.1 damage to other components

P7.2 leakages

P7.3 contact with hazardous substances

P8 ensure your assessment of the dismantled units identifies accurately the condition and suitability for overhaul

P9 inform the relevant person(s) promptly where an overhaul is uneconomic or unsatisfactory to perform

P10 use testing methods which comply with the manufacturer's requirements

P11 adjust the unit’s components correctly, when necessary, to ensure that they operate to meet the vehicle operating requirements

P12 ensure the overhauled units and assemblies conform to the vehicle operating specification and any legal requirements

P13 ensure your overhaul records are accurate, complete and passed to the relevant person(s) promptly in the format required

P14 complete all overhauling activities within the agreed timescale

P15 report any anticipated delays in completion to the relevant person(s) promptly 

K2.1 health and safety

K2.2 the environment (including waste disposal)

K2.3 personal and vehicle protective equipment

K3 your workplace procedures for:

K3.1 recording overhaul activities

K3.2 reporting the results of tests

K3.3 the referral of problems

K3.4 reporting delays to the completion of work

K4 the importance of working to recognised overhauling and repair procedures and processes and obtaining the correct information for overhauling and repair activities to proceed

K5 the importance of, documenting repair information

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

K7 the importance of reporting any anticipated delays to the relevant person(s) promptly

Equipment

K8 how to prepare and check the accuracy and operation of all the overhauling and testing equipment required

K9 how to use all the overhauling and testing equipment required

Mechanical units overhauling activities *

K10 how to find, interpret and use sources of information on overhauling procedures and statutory requirements

K11 how the relevant vehicle mechanical units and assemblies operate

K12 how mechanical units and assemblies are constructed, dismantled and reassembled

K13 the possible causes of faults in mechanical units and assemblies

K14 vehicle operating specification for limits, fits and tolerances and where this information can be sourced

K15 how to assess the condition evident within units, sub-assemblies and components

K16 the cost-benefit / relationship between the reconditioning, repair and replacement of components

K17 how to carry out *overhauling activities for the type(s) of units worked upon

K18 the relationship between test methodology and the faults repaired – the use of appropriate testing methods

K19 how to test and evaluate the performance of overhauled units against the operating specification

K20 how to interpret test results

K21 how to identify the types and causes of mechanical units and assembly failure

K22 how to make suitable adjustments to components and units

K23 how to work safely avoiding personal injury, damage to components leakage and hazardous substances

K24 how to make cost effective recommendations based upon the cost-benefit relationship between the reconditioning, repair and replacement of components

1.1. dismantling

1.2. assessment

1.3. repair

1.4. replacement

1.5. adjustment of internal components

1.6. re-assembly

1.7. functional testing