NZQA registered unit standard
6943 version 7
Page 1 of 4
Title
Delimb tree lengths using a mechanised delimber
Level
4
Purpose
Credits
10
This unit standard is intended for people employed in a
mechanised delimbing role in a forestry operation.
People credited with this unit standard are able to: demonstrate
knowledge of planning requirements for mechanised delimbing
and mechanised delimbing machines; and delimb tree stems.
Classification
Forestry > Forest Mechanised Harvesting
Available grade
Achieved
Entry information
Critical health and
safety prerequisites
Unit 6935, Operate an excavator based tracked machine in a
forestry situation; or demonstrate equivalent knowledge and
skills.
Explanatory notes
1
This unit standard does not cover operation of a Static Delimber. Static Delimbers
are covered in Unit 6948, Delimb stems using a static delimber.
2
Mechanised harvesting operations may include machines which carry out any one of,
or any combination of – felling, delimbing, bunching, and making logs. Therefore,
this unit standard may be completed on its own or in conjunction with any
combination of: Unit 6944, Make logs using a mechanised processing machine; Unit
6945, Fell trees using a mechanised harvesting machine; and/or Unit 6947, Bunch
tree lengths for extraction or processing.
3
Definitions
Accepted industry practice – approved codes of practice and standardised
procedures accepted by the wider forestry industry as examples of best practice.
Forestry Operations include forest establishment, silviculture, harvesting, forest
inventory, and forest and crew management.
Job prescription refers to any written instructions for the operation and may include
maps, harvest plans or cut plans.
PPE refers to personal protective equipment and may include but is not limited to
high-viz, protective clothing, gloves, face and eye protection, safety helmet, footwear,
hearing protection, and safety devices.
Worksite procedures refer to documented procedures used by the organisation
carrying out the work and applicable to the tasks being carried out. They may
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
6943 version 7
Page 2 of 4
include but are not limited to – standard operating procedures, site safety
procedures, equipment operating procedures, quality assurance procedures,
housekeeping standards, procedures to comply with legislative and local body
requirements.
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of planning requirements for mechanised delimbing.
Evidence requirements
1.1
Machine capability is described in accordance with manufacturer’s
recommendations.
Range
1.2
Planning requirements for work area are explained in accordance with the
accepted industry practice and worksite procedures.
Range
1.3
stem diameters, weight, branch size, stem length, stem features.
stable site, clear of other operations, room to manoeuvre,
environmental considerations, safety, signs, stockpiles for tree
lengths and logs, waste management.
Job prescription requirements relevant to delimbing are explained.
Range
quality requirements, debris removal, environmental constraints.
Outcome 2
Demonstrate knowledge of mechanised delimbing machines.
Evidence requirements
2.1
Components of the delimbing machine are identified and their function
explained in accordance with the manufacturer’s requirements.
Range
2.2
may include but is not limited to – knives, boom, drive wheels,
hydraulics on knives;
evidence is required of five components.
Safety features on the machine are identified and their function explained in
accordance with the accepted industry practice and manufacturer’s
requirements.
Range
Competenz
SSB Code 101571
may include but is not limited to – operator protection structures,
seat belts (or other safety restraint), fire systems, handrails, steps,
lockout system, warning systems;
evidence of seven is required.
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
2.3
6943 version 7
Page 3 of 4
Safe operation and movement of the machine are explained in terms of the
manufacturer's recommendations and worksite procedures.
Range
steering, travel speeds, slope, lifting capacity, reach, operator skill.
Outcome 3
Delimb tree stems.
Evidence requirements
3.1
Operating procedure for the delimbing machine is described in accordance with
manufacturer's recommendations and worksite procedures.
3.2
PPE is worn in accordance with the accepted industry practice and worksite
procedures.
3.3
Hazards are identified and managed in accordance with the accepted industry
practice.
3.4
The reason for on-going hazard identification is explained in accordance with
the accepted industry practice.
3.5
Factors that may change hazards or introduce new hazards are described in
accordance with the accepted industry practice.
Range
change of location, change of landing lay out.
3.6
Terrain is negotiated in accordance with the accepted industry practice.
3.7
Machine is positioned to facilitate the delimbing process in accordance with
worksite procedures.
3.8
Stems are selected and positioned in the delimbing equipment in accordance
with worksite procedures.
3.9
Delimbing equipment is operated in accordance with the manufacturer's
recommendations.
3.10
Stems are delimbed to meet job prescription requirements.
3.11
Stems outside capabilities of machine are identified and manual delimbing
organised, in accordance with worksite procedures.
3.12
Delimbed stems are placed for removal, processed, stacked, or presented
according to machine capability, in accordance with worksite procedures.
3.13
Communication is maintained between worksite personnel in accordance with
the accepted industry practice.
3.14
Quality requirements of the job prescription are met.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
3.15
6943 version 7
Page 4 of 4
Debris clearance is organised to meet worksite procedures.
Planned review date
31 December 2020
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
8 November 1996
31 December 2012
Revision
2
19 June 1998
31 December 2012
Review
3
5 December 2000
31 December 2012
Review
4
22 May 2008
31 December 2013
Revision
5
15 September 2011
31 December 2016
Revision
5
17 May 2013
31 December 2017
Review
6
19 March 2015
31 December 2017
Review
7
10 December 2015
N/A
Consent and Moderation Requirements (CMR) reference
0173
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.
Comments on this unit standard
Please contact Competenz at 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