21678 Remove, Repair, And/Or Replace a Vehicle And/Or Machine Exhaust System

NZQA Expiring unit standard 21678 version 3 Page 1 of 4

Title Remove, repair, and/or replace a vehicle and/or machine exhaust system

Level 3 Credits 2

Purpose This unit standard is for people who wish to enter or are employed in the motor industry. People credited with this unit standard are able to select exhaust components for the job, remove and inspect existing exhaust system, and repair and/or replace exhaust system.

Classification Motor Industry > Automotive Fuel Systems and Exhaust

Available grade Achieved

Explanatory notes

1 Evidence presented for assessment against this unit standard must be consistent with safe working practices and be in accordance with applicable manufacturer’s specifications, service information, company and legislative requirements (this includes the knowledge and/or use of suitable tools and equipment).

2 Legislation, regulations and/or industry standards relevant to this unit standard include but are not limited to the current version of including updated amendments to, and replacements of – Health and Safety at Work Act 2015; Land Transport Rule: Vehicle Equipment 2004, Rule 32017.

3 Land Transport Rules are available online at https://www.nzta.govt.nz/. 4 Definitions s Company requirements refer to instructions to staff on policyis and i procedures which are documented in memo or manual format and are availabled d in the workplace. These requirements include but are not limited to – companyr ar specifications and procedures, work instructions, manufacturer specifications,dad product quality specifications and legislative requirements.n n Service information may include but is nota limitedta to – technical information of a vehicle, machine, or product detailing operation;t s installationg and servicing procedures; manufacturer instructions s and specifications;gn technical terms and t it inri descriptions; and detailed illustrations.ni n Thisir mayi be accessed from the manufacturer. u u pxp Suitable tools and equipments is meansx industrye approved tools and equipment that are recognised withinh thei industryh ase being the most suited to complete the task in a professional andT competentT manner with due regard to safe working practices.

MITO New Zealand Incorporated Ó New Zealand Qualifications Authority 2018 SSB Code 101542 NZQA Expiring unit standard 21678 version 3 Page 2 of 4

Outcomes and evidence requirements

Outcome 1

Select exhaust components for the job.

Evidence requirements

1.1 Exhaust components to be replaced are identified according to vehicle and/or machine details.

Range may include but is not limited to – vehicle and/or machine details (make, model, year, chassis or VIN number, engine number import or locally assembled), in a parts catalogue or computer, according to customer’s or supervisor’s instructions, sample matching.

1.2 Availability of replacement exhaust system components is determined.

Range may include but is not limited to – from company’s stock, ordering components from a supplier; meeting legislative requirements.

Outcome 2

Remove and inspect existing exhaust system.

2.1 Exhaust system components are removed from the vehicle and/or machine without damage to adjacent components.

Range two of – hand cutting, oxy-acetylene cutting, heating, dismantling joints.

2.2 Leaking, damaged or broken components are removed without further damage to the vehicle and/or machine. s is Range may include but is not limited to – broken i dand damaged studs, gaskets, exhaust manifold, brackets,rd pipes,r mufflers and resonators, catalytic converter,a flexibleda joints, other emission components. dn ana 2.3 Exhaust components are inspectedt fors furthert serviceability,g and a decision is made to repair and/or replace componentsst n basedgin on the inspection. itni ri ir Range may includeun ubut is notp ilimitedp to – manifold flanges, pipes, flexible joints, mufflerss andx resonators,x catalytic converter, clamps and hangers.is i e e hTh Outcome 3 T

Repair and/or replace exhaust system.

3.1 Corroded parts are identified, and are replaced and/or repaired.

Range may include but is not limited to – pipes, mufflers, catalytic converter, mountings.

3.2 Exhaust components are fitted to the vehicle and/or machine.

Range may include but is not limited to – aligning complete system with underbody and ground clearances, fitting gaskets, clamps, hangers, heat shielding, bolts, and studs, all joints sealed, ensuring noise output meets legislative requirements, sensors, gas welding, MIG welding.

3.3 The exhaust system is mounted in a secure and flexible manner and meets legislative requirements.

Range may include but is not limited to – ensuring system is not bound up, all components located in the intended position, no rattles and vibration transmitted by the system, no exhaust leaks, exhaust gases directed away from the perimeter of the vehicle’s passenger compartment.

Replacement information This unit standard replaced unit standard 933, unit standard 5754, and unit standard 11738.

This unit standard was replaced by unit standard 30515.

This unit standard is expiring. Assessment against the standard must take place by the last date for assessment set out below. Status information and last date for assessment for superseded versions Process Version Date Lasts Dateis for Assessment id Registration 1 27 July 2005 rd31r December 2018 Review 2 21 April 2016 a a31 December 2020 dnd Review 3 28 September 2017na 31 December 2020 tast g Consent and Moderation Requirements s (CMR) referencegn 0014 it it inri This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.don n ir i . u u pxp Please note is is exe Providers must be grantedh consenth to assess against standards (accredited) by NZQA, before they can reportT creditsT from assessment against unit standards or deliver courses of study leading to that assessment.

Industry Training Organisations must be granted consent to assess against standards by NZQA before they can register credits from assessment against unit standards.

Providers and Industry Training Organisations, which have been granted consent and which are assessing against unit standards must engage with the moderation system that applies to those standards.

Requirements for consent to assess and an outline of the moderation system that applies to this standard are outlined in the Consent and Moderation Requirements (CMR). The CMR also includes useful information about special requirements for organisations wishing to develop education and training programmes, such as minimum qualifications for tutors and assessors, and special resource requirements.

is is d d r ar dad nan ta t s s gng it it inri nun irpi us xpx ishi e e ThT

MITO New Zealand Incorporated Ó New Zealand Qualifications Authority 2018 SSB Code 101542