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Title / Operate a truck-mounted roller-spreader on chipsealing works
Level / 3 / Credits / 12
Purpose / People credited with this unit standard are able to: demonstrate knowledge of truck-mounted roller-spreaders; perform operator checks and maintenance on a roller-spreader; prepare for chip spreading; operate a roller-spreader to spread sealing chip; and achieve quality requirements for chip spreading.
Classification / Infrastructure Works > Infrastructure Works Equipment
Available grade / Achieved
Explanatory notes
1 The following legislation and requirements apply to this unit standard, and must be complied with:
Health and Safety in Employment Act 1992;
Health and Safety in Employment Regulations 1995;
Code of Practice for Temporary Traffic Management (CoPTTM), New Zealand Transport Authority, available at http://nzta.govt.nz/resources;
NZTA M6: Sealing Chip, New Zealand Transport Authority at http://nzta.govt.nz/resources;
Job requirements;
Manufacturer’s instructions.
With respect to operating roller-spreaders and achievement of chip spread rates, the current edition of the Chipsealing in New Zealand, New Zealand Transport Authority, available at http://www.nzta.govt.nz/resources/chipsealing-new-zealand-manual/, must be complied with.
2 Assessment against this unit standard must take place in a workplace environment. Assessment parameters will depend on company and site specific equipment, procedures, and practices. Practices must reflect industry best practice and comply with legislative requirements.
3 This unit standard assesses the operation of the roller-spreader and does not assess the driving of the truck to which the spreader is attached.
4 Definitions
Company requirements include the policy, procedures, and methodologies of the company. They include legislative and regulatory requirements applicable to the company or a specific site. Requirements are documented in the company’s health and safety plans, traffic management plans, contract work programmes, quality assurance programmes, policies, and procedural documents.
Job requirements take account of site conditions to meet contract specifications, and accord with procedures and work instructions written in quality manuals.
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of truck-mounted roller-spreaders.
Evidence requirements
1.1 Roller-spreaders are described in terms of their components and functions.
1.2 The effect and inter-relationship of hoist height, truck speed, roller speed, and spreader feed gate settings in terms of chip flow control is described.
Outcome 2
Perform operator checks and maintenance on a roller-spreader.
Evidence requirements
2.1 Roller-spreader is checked for minor maintenance and adjustments are made in accordance with manufacturer’s instructions and job requirements.
Range calibration, uniformity of spreader feed gate opening, function of cut-off plates or width control, roller condition and function, control and function of drive system.
2.2 Operator servicing and maintenance are documented in accordance with company procedures.
2.3 Operator maintenance checking that indicates that specialist maintenance is required is reported to mechanic or supervisor in accordance with company procedures.
Outcome 3
Prepare for chip spreading.
Evidence requirements
3.1 Job instructions are confirmed with supervisor and communicated to driver in accordance with company requirements.
Range includes but is not limited to – location, area to be covered, chip grade, spread rate.
3.2 On arrival at site, chip loads are checked for grade, cleanliness, freedom from contamination, and dryness, and any inconsistencies are reported in accordance with company requirements.
3.3 Roller-spreader is set in accordance with specified chip coverage rate.
Range settings – spreader feed gate, peripheral speed of roller, width of spread.
3.4 Hoist angle and speed of truck are set for the specified chip coverage rate after discussion with driver and obstructions for truck and tray are cleared for spreading operations.
Outcome 4
Operate a roller-spreader to spread sealing chip.
Evidence requirements
4.1 Stop and start locations are complied with in accordance with job requirements.
4.2 Instructions are given to truck driver in terms of hoist angle, truck speed, and truck direction adjustment to meet job requirements.
4.3 Positioning is maintained continuously within the range of view of driver or, if operating a roller-spreader fitted with an approved platform and guard rails, communication is maintained continuously with driver.
4.4 At all times during spreading operations, the location of other plant, site personnel, other vehicles, and the public is monitored in accordance with company requirements.
4.5 Height of truck tray is monitored in accordance with company requirements.
Range monitoring includes but is not limited to – clearance from obstructions, required spread of chip.
4.6 Truck driver is advised of conditions that require spreading operations to cease in accordance with company requirements.
Range three conditions.
4.7 Chip coverage rate is monitored and adjustments are made to roller-spreader in accordance with job requirements.
Range adjustments – spreader feed gate, peripheral spread of roller, cut-off plates.
Outcome 5
Achieve quality requirements for chip spreading.
Evidence requirements
5.1 Chip application rate is verified in accordance with company requirements.
Range one of – measuring the total area, a square metre sample.
5.2 Chip coverage meets job requirements for width, location, and evenness of spread.
5.3 Minimal handwork is needed to meet job requirements.
5.4 Overlaps are minimised at joints and road curves.
Planned review date / 31 December 2019Status information and last date for assessment for superseded versions
Process / Version / Date / Last Date for Assessment /Registration / 1 / 24 March 1998 / 31 December 2013
Revision / 2 / 5 January 1999 / 31 December 2013
Review / 3 / 27 October 2005 / 31 December 2013
Review / 4 / 15 March 2012 / 31 December 2016
Review / 5 / 19 February 2015 / N/A
Consent and Moderation Requirements (CMR) reference / 0101
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 the Infrastructure ITO if you wish to suggest changes to the content of this unit standard.
Infrastructure ITOSSB Code 101813 / Ó New Zealand Qualifications Authority 2015