BS ISO 06531:2017 pdf download.Machinery for forestry — Portable chain-saws — Vocabulary
1 Scope
This document defines terms relating to the mechanical aspects of portable chain-saws, saw-chain and guide bars.
The chain-saw positions are shown in Annex A.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1 Work functions
3.1.1 felling
separation of a standing tree from its root system
3.1.2 delimbing
removal of branches from trees or parts of trees
3.1.3 bucking
slashing
cutting of felled or uprooted trees, or parts of trees, into lengths
3.1.4 splitting
dividing of trees or parts of trees longitudinally into pieces
3.1.5 boring
process of cutting with the saw-chain (3.3.1) at the nose (tip) of the guide bar (3.3.5) in order to make a hole
3.1.6 kickback
rapid upward and backward motion of the saw which can occur when the moving saw-chain (3.3.1) near the upper portion of the tip of the guide bar (3.3.5) contacts an object such as a log or branch
3.1.7 pinch kickback
rapid pushback of the chain saw that can occur when the wood closes in and pinches the moving saw-chain (3.3.1) in the cut along the top of the guide bar (3.3.5)
3.1.8 pruning
removal of live or dead branches, or of multiple leaders of shoots, from standing trees
3.2 Types of chain-saws
3.2.1 chain-saw
power-driven tool designed to cut wood with a saw-chain (3.3.1) and consisting of an integrated compact unit of handles, power source, guide bar (3.3.5) and saw-chain, designed to be supported with two hands
3.2.1.1 chain-saw for forest service
chain-saw designed for forest work such as felling (3.1.1), delimbing (3.1.2) and bucking (3.1.3)
Note 1 to entry: See Figure 1.
3.2.1.2 chain-saw for tree service
specialized chain-saw of limited mass, designed for use by a trained operator for pruning (3.1.8) and dismantling standing tree crowns
Note 1 to entry: See Figure 2.
BS ISO 06531:2017 pdf download
