Overview
EN ISO 11850:2011/A1:2016 - Machinery for forestry - General safety requirements - is a CEN-adopted amendment to the international standard ISO 11850:2011. This minor amendment (A1:2016) updates the original standard to clarify requirements for service openings and adds a mass requirement for hand-removable covers. The document is intended to harmonize safety expectations for forestry machinery across CEN member countries and to support compliance with relevant EU requirements.
Key Topics
- General safety requirements for forestry machines (design, construction and use) as established in ISO 11850:2011.
- Amendment detail: Subclause 4.4, letter c) - replaces the previous text referencing ISO 2867:2011 Table 1 with a requirement that “These openings and mass of a hand-removable covers shall be in accordance with ISO 2867:2011, Table 1 and 5.11.”
- Safe access and maintenance - emphasis on correct sizing and mass of removable covers to reduce risk during inspection, maintenance and routine service.
- Risk reduction measures (guarding, access, covers) - the amendment reinforces the use of referenced test/data tables to ensure consistent protective characteristics.
Practical Applications
- Designers and manufacturers of harvesters, forwarders, chippers and other forest machinery must apply the amended requirement when specifying or testing hand-removable covers and access openings.
- Safety and compliance teams use this standard to:
- Verify that removable covers meet the referenced mass/size criteria to prevent accidental injury.
- Update technical documentation, user manuals and maintenance procedures.
- Demonstrate conformity to European safety expectations during product assessment and market approval.
- Test laboratories and conformity assessment bodies rely on the updated cross-reference to ISO 2867:2011 when performing inspections and type testing.
Who Should Use This Standard
- Forestry machinery manufacturers and component suppliers
- Product designers and mechanical engineers
- Safety managers, maintenance supervisors and operators
- Certification bodies, notified bodies and national standards organizations
- Procurement and compliance officers responsible for equipment safety
Related Standards
- ISO 11850:2011 (original standard) - general safety requirements for forestry machinery
- ISO 2867:2011 - referenced for openings and the new mass requirements (Table 1 and clause 5.11)
EN ISO 11850:2011/A1:2016 is essential for ensuring consistent, documented safety practice in the design and servicing of forestry equipment and for maintaining compliance with CEN/CENELEC and EU safety frameworks.
