BS ISO 9518:2018
$198.66
Forestry machinery. Portable chain-saws. Kickback test
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 60 |
This document specifies the methodology for determining the kickback potential of gasoline-powered and electric-powered (including battery powered) chain-saws, complete with guide bar and saw-chain.
This document has been demonstrated to be an accurate method of measurement for evaluating computed kickback angles and energy associated with chain-saw kickback for electric-powered chain-saws (including battery powered) and gasoline-powered chain-saws with engine capacity up to 80 cm3. It is not intended to evaluate chain-saws with an engine capacity of above 80 cm3. Furthermore, because of physical size limitations of the kickback machine, it is not intended for testing of units with guide bar cutting length in excess of 63 cm.
Modifications to the methodology for determining the kickback potential introduced in this edition are aimed to have a better reproducibility of the results; test results obtained according to the previous methodology still maintain their validity.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 6 | Foreword |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions |
| 8 | 4 Test method 4.1 Principles 4.2 Chain-saw configuration 4.2.1 General |
| 9 | 4.2.2 Chain-saw families 4.2.3 Requirements for testing bars and saw-chains 4.3 Equipment and materials to determine CKA 4.4 Preparation 4.4.1 General |
| 10 | 4.4.2 Physical measurements of chain-saw 4.4.3 Dimensional measurements |
| 11 | 4.4.4 Chain-saw and saw-chain preparation |
| 13 | 4.4.5 Kickback machine preparation 4.4.6 Chain-saw installation and alignment 4.4.7 Balance saw/clamp/cradle assembly |
| 14 | 4.4.8 Horizontal friction measurements |
| 15 | 4.4.9 Rotary friction measurements |
| 16 | 4.4.10 Horizontal & rotary restraining systems alignment |
| 18 | 4.4.11 Impact velocity adjustment |
| 19 | 4.5 Test requirements and procedures 4.5.1 Test requirements |
| 21 | 4.5.2 Kickback testing procedure 4.5.3 Kickback energy determination |
| 22 | 4.5.4 Termination of test sequence 4.5.5 Chain brake energy determination |
| 26 | 4.5.6 Chain brake actuation angle measurement |
| 27 | 4.5.7 Chain brake stopping time measurement 4.6 Kickback angle computation 4.6.1 General 4.6.2 Input data |
| 28 | 4.6.3 Computation and results 5 Test report |
| 29 | Annex A (normative) Computer program flowchart |
| 40 | Annex B (normative) Procedure for hardness testing of Medium Density Fibreboard (MDF) |
| 42 | Annex C (informative) Test record |
| 45 | Annex D (informative) Chain-saw centre of gravity and inertia measurement |
| 51 | Annex E (informative) Computer program checkout models |
| 59 | Bibliography |
