NZQA Expiring unit standard
17345 version 4
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Title
Draw a diagram, and explain the operating principles, of a simple
hydraulic power system
Level
2
Credits
3
Purpose
People credited with this unit standard are able to draw a
diagram of, and explain the operating principles of a simple
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, or demonstrate equivalent
knowledge and skills.
Explanatory notes
1
The system designed for this unit standard must of a simple construction and may
include but is not limited to one each of the following components: double acting
hydraulic cylinder, two directional control valve, pump, reservoir, filter, motor (or jack),
hydraulic lines, pressure control valve.
2
The diagram prepared for this unit standard must be of a graphic symbol type as
opposed to a cutaway pictorial diagram. All graphics must conform with BS 29171:1993, ISO 1219-1:1991, Graphic symbols and circuit diagrams for fluid power
systems and components: specification for graphic symbols.
Outcomes and evidence requirements
Outcome 1
Draw a diagram of a simple hydraulic power system.
Evidence requirements
1.1
System components are identified using correct graphic symbols.
1.2
The diagram shows the correct relationship between system components.
Competenz
SSB Code 8104
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
1.3
17345 version 4
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The diagram includes a list of all components and their basic specifications.
Outcome 2
Explain the operating principles of a simple hydraulic power system.
Range
components used in the system diagram.
Evidence requirements
2.1
The purpose of each component is explained in terms of its function within the
system.
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Status information and last date for assessment for superseded versions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
Last Date for Assessment
Registration
1
23 February 2000
31 December 2015
Review
2
25 May 2004
31 December 2015
Review
3
18 March 2011
31 December 2017
Rollover
4
15 October 2015
31 December 2017
Consent and Moderation Requirements (CMR) reference
0013
This CMR 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 CMRs. 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.
Competenz
SSB Code 8104
 New Zealand Qualifications Authority 2016