NZQA registered unit standard
20613 version 2
Page 1 of 4
Title
Maintain a hydraulic power system
Level
3
Credits
7
Purpose
People credited with this unit standard are able to: prepare to
maintain; carry out preliminary sensory checks on; maintain;
and return to operation, a hydraulic power system.
Classification
Mechanical Engineering > Fluid Power - Hydraulics
Available grade
Achieved
Entry information
Critical health and
safety prerequisites
Unit 20597, Shut down for maintenance, and start up, a
hydraulic power system, or demonstrate equivalent knowledge
and skills.
Explanatory notes
1
Reference
Legislation applicable to this unit standard includes the Health and Safety in
Employment Act 1992, and Resource Management Act 1991.
2
Definitions
Components – may include but are not limited to filters, breathers, tubing and piping.
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.
Servicing – carrying out routine actions that ensure operational integrity. Examples
include cleaning, replenishing, lubricating, minor adjustments, and dispatch of
components for specialist work.
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.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
20613 version 2
Page 2 of 4
Outcomes and evidence requirements
Outcome 1
Prepare to maintain a hydraulic power system.
Evidence requirements
1.1
Routine preventive maintenance activities are described in accordance with the
selected system and worksite procedures.
Range
1.2
Consequences of a poorly maintained system are identified.
Range
1.3
may include but is not limited to – cleaning of system, checking of
fluid types and fluid levels, filter and fluid tests.
three consequences are required.
Tools and equipment are prepared in accordance with the selected system and
industry practice.
Range
may include but is not limited to – containers, blanking flanges,
plates and plugs, absorbent materials, hand tools, cleaning
equipment and fluids.
1.4
Procedure for making system safe is established in accordance with industry
practice prior to commencing maintenance.
1.5
System and adjacent environment are cleaned, to prevent system
contamination, in accordance with legislative requirements and industry
practice.
Outcome 2
Carry out preliminary sensory checks on a hydraulic power system.
Range
sensory – sight, sound, touch, smell;
checks may include but are not limited to – leaks, levels, hose condition, filters,
couplings, temperatures, gauges and indicators, excessive or unusual noise,
machine odour.
Evidence requirements
2.1
Checks are carried out in accordance with health and safety legislation and
industry practice, and results communicated to the supervisor.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
20613 version 2
Page 3 of 4
Outcome 3
Maintain a hydraulic power system.
Evidence requirements
3.1
System is made safe in accordance with worksite procedures, and confirmed
with supervisor.
Range
may include but is not limited to – isolation, depressurisation, PPE,
safety supports.
3.2
Components to be serviced are confirmed with supervisor.
3.3
Components are removed without damage to the system or component.
3.4
Components are serviced in accordance with manufacturer’s instructions or
industry practice.
3.5
Components are replaced without damage to the system or component.
3.6
Fluid samples are collected for analysis in accordance with industry practice.
Outcome 4
Return a hydraulic power system to operation.
Evidence requirements
4.1
System is re-energised in accordance with worksite procedures, and confirmed
with supervisor.
Range
may include but is not limited to – electrical, mechanical, and
potential energy.
4.2
System performance is verified with supervisor to ensure it meets operational
requirements.
4.3
Work area is cleaned in accordance with legislative requirements and industry
practice.
Replacement information
This unit standard and unit standard 20614 replaced unit
standard 2722.
Planned review date
31 December 2015
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
20613 version 2
Page 4 of 4
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