21579 version 2
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Operate, and perform first line maintenance on an externally mounted
liquid waste vacuum pump
Level
3
Credits
2
Purpose
This unit standard is for operators of liquid waste vacuum tankers. The term
‘operator’ includes drivers, supervisors, and owner-operators.
People credited with this unit standard are able to, carry out pre-start checks,
operate, and carry out first line maintenance on a vacuum pump externally
mounted on a liquid waste vacuum tanker.
Subfield
Commercial Road Transport
Domain
Transportation of Waste and Recoverable Resources
Status
Registered
Status date
18 July 2008
Date version published
18 July 2008
Planned review date
31 December 2013
Entry information
Open.
Accreditation
Evaluation of documentation and visit by NZQA and
industry.
Standard setting body (SSB)
NZ Motor Industry Training Organisation (Incorporated)
Accreditation and Moderation Action Plan (AMAP) reference
0092
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
1
The legal requirements to be complied with include:
Health Act 1956 sections 54 and 55;
Health and Safety in Employment Act 1992;
Health and Safety in Employment Regulations 1995.
2
Any new, amended, or replacement Acts, regulations, Rules, standards, codes of
practice, Land Transport New Zealand or Transit New Zealand requirements or
conditions affecting the outcome of this unit standard will take precedence for
assessment purposes, pending review of this unit standard.
 New Zealand Qualifications Authority 2016
21579 version 2
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3
Definitions
A liquid waste vacuum tanker is a rigid or combination motor vehicle upon which is
mounted a unit for loading, transporting, and unloading liquid, wet loose matter, or
dry loose products.
Vacuum pump type means at least one of – lobe blower pump, piston pump, rotary
sliding vane pump, liquid ring pump.
Organisational requirements include any legal requirements, standards, codes of
practice, operational and/or site policies and procedures, industry best practice and
manufacturers’ instructions. These should be available to candidates, providers, and
assessors. For this unit standard organisational requirements also includes the
Waste Operators Handbook, which is a subset of the Liquid and Hazardous Waste
Code of Practice (Wellington: New Zealand Water and Wastes Association, 2003),
available at http://www.nzwwa.org.nz.
4
While every assessment situation may not provide opportunity for evidence of every
performance criterion, evidence may be obtained over a period of time on the job,
over several assessment opportunities, or through other means such as attestation
and the use of questioning.
Elements and performance criteria
Element 1
Carry out pre-start checks on a vacuum pump externally mounted on a liquid waste
vacuum tanker.
Performance criteria
1.1
Lubrication and cooling systems are checked for type and level and replenished
in accordance with manufacturer’s specifications and organisational
requirements.
1.2
Drive belts are checked for condition and tension in accordance with
manufacturer’s specifications and organisational requirements.
Element 2
Check the operation of and shutdown and disconnect a vacuum pump externally mounted
on a liquid waste vacuum tanker.
Performance criteria
2.1
Vacuum pressure is checked for operation within safe limits in accordance with
manufacturer’s specifications and organisational requirements.
2.2
Action is taken to relieve vacuum pressure if not within safe limits is in
accordance with manufacturer’s specifications and organisational requirements.
Range
shut down pump, lift suction hose from target liquid to remove
blockage if high vacuum, open valve to relieve pressure.
 New Zealand Qualifications Authority 2016
21579 version 2
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2.3
Checks on the operation of the lubrication and cooling systems are carried out
in accordance with manufacturer’s specifications and organisational
requirements.
2.4
Action taken if the pump is overheating is in accordance with the manufacturer’s
specifications and organisational requirements.
2.5
Suction line is cleared before shut down and disconnection in accordance with
organisational requirements.
2.6
Pump is shut down and disconnected in accordance with manufacturer’s
specifications and organisational requirements.
Element 3
Carry out first line maintenance on a vacuum pump externally mounted on a liquid waste
vacuum tanker.
Range
may include but is not limited to – lubrication system, drive belts, oil catch
mufflers, secondary scrubbers, filters, valves, state of cleanliness.
Performance criteria
3.1
Pump is flushed and cleaned after use in accordance with manufacturer’s
specifications and organisational requirements.
3.2
Drive belt is re-tensioned or replaced in accordance with manufacturer’s
specifications and organisational requirements.
3.3
Oil catch muffler and secondary scrubber are drained and disposed of in
accordance with manufacturer’s specifications and organisational requirements.
3.4
Filters and valves are cleaned in accordance with manufacturer’s specifications
and organisational requirements.
3.5
Pump is re-oiled and prepared for next use in accordance with manufacturer’s
specifications and organisational requirements.
Please note
Providers must be accredited by NZQA, or an inter-institutional body with delegated
authority for quality assurance, before they can report credits from assessment against
unit standards or deliver courses of study leading to that assessment.
Industry Training Organisations must be accredited by NZQA before they can register
credits from assessment against unit standards.
Accredited providers and Industry Training Organisations assessing against unit standards
must engage with the moderation system that applies to those standards.
 New Zealand Qualifications Authority 2016
21579 version 2
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Accreditation requirements and an outline of the moderation system that applies to this
standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The
AMAP 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.
Comments on this unit standard
Please contact the NZ Motor Industry Training Organisation (Incorporated)
info@mito.org.nz if you wish to suggest changes to the content of this unit standard.
 New Zealand Qualifications Authority 2016