14585
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LIFTS AND ESCALATORS
Service, clean and lubricate escalators
and moving walks
level:
4
credit:
10
planned review date:
April 2001
sub-field:
Mechanical Engineering
purpose:
People credited with this unit standard are able to: plan and
prepare for work on escalators and moving walks; service
and maintain escalators and moving walks; verify and
identify the faults in escalators and moving walks; diagnose
and repair faults in escalator and moving walks mechanical
systems; repair and replace escalator handrails; diagnose
and repair faults in escalator and moving walks control
systems; and carry out completion work on escalator and
moving walks.
entry information:
Open.
accreditation option:
Evaluation of documentation and visit by NZQA.
moderation option:
A national moderation system of local networks has been
established by the NZ Engineering, Food and Manufacturing
Industry Training Organisation.
 New Zealand Qualifications Authority 2016
14585
28-Jun-16
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LIFTS AND ESCALATORS
Service, clean and lubricate escalators
and moving walks
special notes:
1
Definition
Worksite procedure refers to the documented
procedures for the machine and/or worksite.
Statutory requirements may include but is not limited to
the relevant sections of the New Zealand Building Code
and the relevant standards such as the New Zealand
Standard (NZS) 3000:1997, Electrical Installations Buildings, Structures and Premises, and European
Standard EN115:May 1983, Safety Rules for the
Construction and Installation of Escalators and
Passenger Conveyors.
2
All work practices must meet recognised codes of
practice and documented worksite safety procedures
(where these exceed code) for personal, product and
worksite safety, and must meet the obligations required
under current legislation. Legislation includes but is not
limited to the Health and Safety in Employment Act
(1992), and its subsequent amendments.
3
Prior to any work being undertaken with any lubricant,
the substance must be identified from the
Manufacturers’ Material Safety Data Sheet and the
specified precautions complied with.
4
To gain credit in this unit standard evidence must be
provided of competence in the diagnosis and repair of
faults in the following escalator and moving walks
control systems: field wiring systems, solid state
circuits, micro-processor and digital control systems.
 New Zealand Qualifications Authority 2016
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LIFTS AND ESCALATORS
Service, clean and lubricate escalators
and moving walks
5
Range:
field wiring systems may include but are
not limited to - safety circuits, key switch
circuits, trailing flex;
solid state circuits may include but are not
limited to - emergency light units, DC
power supplies, variable voltage supplies,
variable speed motor control;
micro processor and digital control
systems may include but are not limited to
- multi-layered printed circuit boards,
computer
mother
boards,
central
processing units, digital to analogue (D/A)
converters, analogue to digital (A/D)
converters.
Elements and Performance Criteria
element 1
Plan and prepare for work on escalators and moving walks.
performance criteria
1.1
An inspection of the worksite and the equipment to be serviced is arranged
according to worksite procedure.
1.2
Sequence of work is prioritised and coordination issues resolved with others
involved or affected by the work according to worksite procedure.
 New Zealand Qualifications Authority 2016
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LIFTS AND ESCALATORS
Service, clean and lubricate escalators
and moving walks
1.3
Resources required for the job including equipment, materials, plans, drawings,
tools, and personnel are identified, prepared, and transported to the worksite
according to worksite procedure.
1.4
Escalator and moving walks equipment is isolated from public hazard with
minimal impact on fault conditions in accordance with manufacturers’
specifications and worksite procedure.
element 2
Service and maintain escalators and moving walks.
performance criteria
2.1
Cleaning materials are selected in accordance with manufacturers’ and
worksite procedure.
2.2
Equipment is cleaned, using selected techniques and cleaning materials,
without damage to equipment or the surrounding environment, according to
worksite procedure.
2.3
Lubricant is selected according to manufacturers’ specifications and worksite
procedure.
2.4
Equipment is lubricated to manufacturers’ requirements, schedules, and
specifications according to worksite procedure.
 New Zealand Qualifications Authority 2016
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LIFTS AND ESCALATORS
Service, clean and lubricate escalators
and moving walks
2.5
Running equipment is inspected in accordance with work requirements,
manufacturers’ specifications, and worksite procedure.
Range:
2.6
running equipment may include but is not limited to - handrails,
steps, pallets, step-chains and associated driving equipment,
chains.
Results of inspection checks are compared with specifications, and variances
or wear and damage recorded according to worksite procedure.
element 3
Verify and identify the faults in escalators and moving walks.
performance criteria
3.1
The reported fault is confirmed according to worksite procedure.
3.2
The normal performance and function of the equipment is ascertained by
reference to manufacturers’ specifications, operating manuals, and
commissioning data.
3.3
Technical information, fault finding and diagnostic techniques are used to verify
reported faults, and the nature and cause of the faults are determined from all
available evidence according to worksite procedure.
3.4
Faults identified are recorded in accordance with manufacturers’ and worksite
procedure.
 New Zealand Qualifications Authority 2016
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LIFTS AND ESCALATORS
Service, clean and lubricate escalators
and moving walks
element 4
Diagnose and repair faults in escalator and moving walk mechanical systems.
performance criteria
4.1
Need for replacement or repair is identified through diagnosis and in
accordance with worksite procedure and manufacturers’ specifications.
4.2
Equipment is replaced in
manufacturers’ specifications.
4.3
Equipment is tensioned and adjusted in accordance with manufacturers’
specifications and worksite procedure.
4.4
Safety protection devices are checked, adjusted or replaced in accordance with
manufacturers’ specifications and worksite procedure.
4.5
Running operations are monitored to ensure the equipment functions to
specifications according to worksite procedure.
accordance
with
worksite
procedure
and
element 5
Repair and replace escalator handrails.
performance criteria
5.1
Handrails are inspected against work orders, maintenance schedules or
requests to verify section of handrails to be repaired or replaced according to
worksite procedure.
 New Zealand Qualifications Authority 2016
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LIFTS AND ESCALATORS
Service, clean and lubricate escalators
and moving walks
5.2
Handrail is removed and positioned to allow safe access for preparation and
repair according to worksite procedure.
5.3
Handrail is repaired, vulcanised or spliced in accordance with manufacturers’
specifications and worksite procedure.
5.4
Handrail is refitted and adjusted to manufacturers’ specifications and worksite
procedure.
element 6
Diagnose and repair faults in escalator and moving walks control systems.
performance criteria
6.1
Wires, cables and terminations are visually inspected for damage or loose
connections according to worksite procedure.
6.2
Components and support equipment are disconnected to enable accurate test
measurements of the faulty system according to worksite procedure.
6.3
Fault finding and diagnostic techniques are selected, interpreted, and applied
according to manufacturer’s specifications and worksite procedure.
6.4
Information is used to identify the cause of the fault according to manufacturers’
specifications and worksite procedure.
Range:
available information may include but is not limited to - fault
indicators, error codes, maintenance records, technical
handbooks, systems responses, company diagnostic tools.
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Service, clean and lubricate escalators
and moving walks
6.5
Faults found are recorded in accordance with manufacturers’ requirements and
worksite procedure.
6.6
Conclusions about the cause of the fault are determined from the available
evidence and remedial action identified in accordance with manufacturers’
requirements and worksite procedure.
6.7
The faulty system is isolated and faulty, worn, damaged, or insecure
components are replaced, repaired or secured in accordance with
manufacturers’ specifications and worksite procedure.
element 7
Carry out completion work on escalators and moving walks.
performance criteria
7.1
Equipment is tested and monitored for compliance with manufacturers’
specifications and entered into service in accordance with worksite procedure.
7.2
The relevant parties are notified of work completion according to worksite
procedure.
7.3
Worksite is cleared and equipment, plans, drawings, and tools returned
according to worksite procedure.
7.4
Records are completed according to worksite procedure.
 New Zealand Qualifications Authority 2016
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LIFTS AND ESCALATORS
Service, clean and lubricate escalators
and moving walks
Comments to:
NZ Engineering, Food and Manufacturing Industry Training Organisation
Unit Standard Revision
PO Box 160
WELLINGTON
by April 2001.
Please Note:
Providers must be accredited by the Qualifications Authority
before they can offer programmes of education and training
assessed against unit standards.
Accredited providers assessing against unit standards must
engage with the moderation system that applies to those unit
standards. [Please refer to relevant Plan ref: 0013]
 New Zealand Qualifications Authority 2016