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This technical bulletin clarifies inspection and certification for operator protective structures on forestry yarders.
Yarder operator protective structures should have current certification according to the following standards:
- OPS: Operator Protective Structure
- ISO 8084: 1993 or 2003
- WCB 608
- SAE J 1084
- FOPS: Falling Object Protective Structure
- ISO 8083: 1989 or 2006
- WCB 601, 602, 603
- SAE J1043.
These certifications may be:
- ten years if issued by the original manufacturer (or by a chartered professional engineer)
- five years if issued as a recertification.
Certifications should be done by a chartered professional engineer (CPENG).
Yarder operator protective structures should have a fit-for-service inspection every year (in addition to daily/weekly visual inspections).
Annual fit-for-service inspections should be carried out by a competent person such as a yarder inspector. Daily/weekly visual inspections can be done by the yarder operator.
If a yarder sustains damage or fails a fit-for-service inspection and requires repairs, it should be re-certified before being put back into service. See the below flow chart on process for inspecting and re-certifying yarder operator protective structures.
Recording certifications, inspections, and repairs
The PCBU (person conducting a business or undertaking) should keep records of the following:
- operator protective structure certification and re-certification
- annual tower inspections
- yarder maintenance and repairs
- guy rope installation dates.
All yarder protective structures should be clearly labelled
Labels should include the following information:
- the name and address of the structure’s manufacturer
- the structure’s type and serial number, if any
- the serial number, make, and model of the plant that the structure is designed to fit
- the maximum machine mass (M) for which the structure was designed
- the relevant ISO or equivalent performance standard for which the structure meets all the performance requirements
- other appropriate information (eg installation date, repair, or replacement information).
Labels should be permanently attached in a place where they are easily visible but also protected from weather damage.
Process for inspecting and re-certifying yarder operator protective structures
*Ten years for manufacturers certification. Five years for recertifications.
- Approved code of practice for operator protective structures on self-propelled mobile mechanical plant [PDF, 259 KB]
- Approved code of practice for safety and health in forest operations
[PDF, 1.6 MB]