NZQA Expiring unit standard
2663 version 6
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Title
Demonstrate knowledge of hydraulic control equipment used in
industry
Level
3
Purpose
Credits
4
This unit standard is designed to provide knowledge of
hydraulic equipment used in industrial process control
applications. This knowledge may for example, be used in the
commissioning of hydraulic equipment connected to a
programmable logic controller.
People credited with this unit standard are able to demonstrate
knowledge of hydraulic:
– servicing equipment;
– circuit symbols;
– control actuators; and
– control valves.
Classification
Industrial Measurement and Control > Industrial Measurement
and Control - Theory
Available grade
Achieved
Explanatory notes
1
This unit standard has been developed for learning and assessment off-job.
2
References
ISO 1219-1:2006 Fluid power systems and components - Graphic symbols and
circuit diagrams - Part 1: Graphic symbols for conventional use and data-processing
applications;
ISO 1219-2:1995 Fluid power systems and components - Graphic symbols and
circuit diagrams - Part 2: Circuit diagrams;
and all subsequent amendments and replacements.
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of hydraulic servicing equipment.
Evidence requirements
1.1
Oil filters, their specifications, and their applications are described.
1.2
Diaphragm types, oil pressure relief valves, and their applications are
The Skills Organisation
SSB Code 100401
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
2663 version 6
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described.
1.3
Accumulators and their applications are described.
1.4
Hazards associated with the use of hydraulic equipment are explained in terms
of pressure, fire risk and toxicity.
1.5
Oil purity is identified in terms of water content, particulate count and air
content.
Outcome 2
Demonstrate knowledge of hydraulic circuit symbols.
Evidence requirements
2.1
The International Standards Organisation (ISO) symbols are described.
Range
2.2
cylinders, control valves, exhaust, supply, pilot signals.
ISO symbols are used in hydraulic equipment circuit diagrams.
Outcome 3
Demonstrate knowledge of hydraulic control actuators.
Evidence requirements
3.1
Hydraulic cylinder types and their applications are described.
Range
3.2
single acting spring return, double acting, piston and rack,
telescopic.
Hydraulic motors and their applications are described.
Range
oval gear, reciprocating piston, vane type, axial piston.
Outcome 4
Demonstrate knowledge of hydraulic control valves.
Evidence requirements
4.1
Hydraulic valve types and their applications are described.
Range
4.2
poppet, three port two position spool, five port two position spool,
five port three position spool.
Interconnection of control valves and actuators are identified and described.
Range
The Skills Organisation
SSB Code 100401
poppet, three port two position spool, five port two position spool,
five port three position spool.
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
4.3
2663 version 6
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Electrical control valve actuations are described.
Range
solenoid valves, servo valves.
Replacement information
This unit standard and unit standard 2666 have been
replaced by unit standard 28083.
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
31 October 1995
31 December 2013
Revision
2
30 October 1997
31 December 2013
Revision
3
3 April 2001
31 December 2013
Review
4
22 June 2001
31 December 2013
Review
5
19 May 2008
31 December 2017
Review
6
28 November 2013
31 December 2017
Consent and Moderation Requirements (CMR) reference
0003
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,
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.
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.
The Skills Organisation
SSB Code 100401
 New Zealand Qualifications Authority 2016