NZQA registered unit standard
20597 version 2
Page 1 of 3
Title
Shut down for maintenance, and start up, a hydraulic power system
Level
2
Credits
4
Purpose
People credited with this unit standard are able to shut down a
hydraulic power system for maintenance, and start up a
hydraulic power system.
Classification
Mechanical Engineering > Fluid Power - Hydraulics
Available grade
Achieved
Entry information
Recommended skills
and knowledge
Unit 20611, Demonstrate knowledge of hydraulics and
hydraulic power systems.
Explanatory notes
1
References
Legislation applicable to this unit standard includes the Health and Safety in
Employment Act 1992.
2
Definitions
Industry practice – safe and sound trade practices generally accepted by competent
persons within the mechanical engineering industry.
PPE – personal protective equipment and may include but is not limited to protective
clothing, gloves, safety glasses, headwear, footwear, hearing protection, and safety
devices.
Worksite procedures – documents that include: worksite rules, codes, and practices;
equipment operating instructions and maintenance schedules; documented quality
management systems; and health and safety requirements.
3
Assessment information
Assessment against this unit standard requires the candidate to recognise hazards
associated with hydraulic power systems. All work activities necessitate the use of
approved PPE for working with such systems, and awareness of hazard identification
and management.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
20597 version 2
Page 2 of 3
Outcomes and evidence requirements
Outcome 1
Shut down a hydraulic power system for maintenance.
Evidence requirements
1.1
Shut down instructions are verified with supervisor and followed.
1.2
Hydraulic power system is isolated in accordance with industry practice.
Range
1.3
electrical, mechanical, and potential energy sources.
Hydraulic power system is depressurised in accordance with industry practice.
Outcome 2
Start up a hydraulic power system.
Evidence requirements
2.1
System completeness and start up instructions are verified with supervisor.
2.2
Fluids and levels in the system are checked against operational requirements
and adjusted if necessary.
2.3
Accumulator pre-charge pressures are visually checked against industry
practice, and worksite procedures where applicable.
2.4
System is re-energised to industry practice, and worksite procedures where
applicable.
Range
electrical, mechanical, and potential energy.
2.5
System performance is checked to ensure it meets operational requirements.
2.6
Worksite and system is cleaned in accordance with industry practice, and is
verified with supervisor.
Replacement information
This unit standard and unit standard 20598 replaced unit
standard 2723.
Planned review date
31 December 2015
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
20597 version 2
Page 3 of 3
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
25 May 2004
31 December 2014
Review
2
18 March 2011
N/A
Accreditation and Moderation Action Plan (AMAP) reference
0013
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Please note
Providers must be granted consent to assess against standards (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 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.
Consent 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 Competenz qualifications@competenz.org.nz if you wish to suggest
changes to the content of this unit standard.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016