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GB/T 19726.2-2020 English PDF

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GB/T 19726.2-2020: Machinery for forestry - Portable chain-saw safety requirements and testing - Part 2: Chainsaws for tree service
Status: Valid

GB/T 19726.2: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 19726.2-2020English494 Add to Cart 3 days [Need to translate] Machinery for forestry - Portable chain-saw safety requirements and testing - Part 2: Chainsaws for tree service Valid GB/T 19726.2-2020
GB 19726.2-2013EnglishRFQ ASK 3 days [Need to translate] Machinery for forestry -- Portable chain-saw safety requirements and testing -- Part 2: Chain-saws for tree service Obsolete GB 19726.2-2013

PDF similar to GB/T 19726.2-2020


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Basic data

Standard ID GB/T 19726.2-2020 (GB/T19726.2-2020)
Description (Translated English) Machinery for forestry - Portable chain-saw safety requirements and testing - Part 2: Chainsaws for tree service
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard B95
Classification of International Standard 65.060.80
Word Count Estimation 26,268
Date of Issue 2020-04-28
Date of Implementation 2020-04-28
Older Standard (superseded by this standard) GB 19726.2-2013
Quoted Standard GB/T 23821-2009; ISO 6531-2008; ISO 6533; ISO 6534; ISO 6535; ISO 7010; ISO 7293; ISO 7914-2002; ISO 7915; ISO 8334; ISO 9518; ISO 10726; ISO 12100-2010; ISO 13772; ISO 13849-1-2006; ISO 13849-2; ISO 14982-1998; ISO 22867; ISO 22868; IEC 60745-1-2006
Adopted Standard ISO 11681-2-2011, IDT
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration
Summary This standard specifies the safety requirements and test methods for the design and structure of portable pruning chainsaws powered by internal combustion engines (hereinafter referred to as pruning chainsaws) (see Figure 1). This standard applies to operators who have been trained and have read and understood the safety requirements in the instruction manual, while using the correct personal protective equipment, holding the rear handle with the right hand and the front handle with the left hand, and does not include the saw chain and guide bar , When the fuel tank is empty, the net mass is not more than 4.3kg for tree canopy trimming with pruning chainsaw. This standard describes methods to eliminate or reduce various hazards arising from the use of pruning chain saws, and specifies the information requirements provided by the manufacturer regarding safe operation. This standard specifies the relevant pruning chainsaws, during normal use and reasonable and foreseeable misuse

GB/T 19726.2-2020: Machinery for forestry - Portable chain-saw safety requirements and testing - Part 2: Chainsaws for tree service


---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Machinery for forestry--Portable chain-saw safety requirements and testing-- Part 2. Chain-saws for tree service ICS 65.060.80 B95 National Standards of People's Republic of China Replace GB 19726.2-2013 Safety requirements and tests of forestry machinery portable chain saw Part 2. Pruning chainsaw (ISO 11681-2..2011, IDT) 2020-04-28 release 2020-04-28 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Contents

Foreword I 1 Scope 1 2 Normative references 1 3 Terms and definitions 2 4 Safety requirements and/or protective measures 3 4.1 General 3 4.2 Handle 3 4.3 Hand protection 4 4.4 Balance 5 4.5 Protection against rebound 5 4.6 Chain stop pin 5 4.7 Wooden teeth 6 4.8 Chip removal 6 4.9 Guide cover 6 4.10 Engine starting device 6 4.11 Engine stop switch 6 4.12 Throttle control 7 4.13 Drive sprocket shield 8 4.14 Clutch 8 4.15 Protection of high voltage live parts 8 4.16 Protection of hot parts 8 4.17 Fuel and oil system 9 4.18 Exhaust gas emissions 10 4.19 Saw chain lubrication 10 4.20 Tensioning of saw chain 10 4.21 Hookup device 10 4.22 Vibration 11 4.23 Noise 11 4.24 Electromagnetic compatibility 11 5 Usage Information 11 5.1 Operating Instructions 11 5.2 Logo 14 5.3 Warning 14 5.4 Label test 15 5.5 Information provided by sales outlets 16 Appendix A (Normative Appendix) Working Requirements for Using Pruning Chainsaws under the Suspension of Ropes and Safety Belts 17 Appendix B (Informative Appendix) List of Serious Hazards 22 References 23

Foreword

GB/T 19726 "Safety Requirements and Tests of Portable Chainsaws for Forestry Machinery" is divided into the following two parts. --- Part 1. Forest saws; --- Part 2. Pruning chainsaw. This part is Part 2 of GB/T 19726. This section was drafted in accordance with the rules given in GB/T 1.1-2009. This part replaces GB 19726.2-2013 "Safety Requirements and Tests of Portable Chainsaws for Forestry Machinery Part 2. Pruning Chainsaws", Compared with GB 19726.2-2013, the main technical content has not changed. The translation method used in this part is equivalent to the use of ISO 11681-2..2011 "Safety Requirements and Tests for Portable Chainsaws of Forestry Machinery Part 2" Points. Pruning Chainsaw. The documents in China that have a consistent correspondence with the normatively cited international documents in this section are as follows. --- GB/T 5390-2013 Forestry and garden machinery noise measurement rules for portable handheld operating machinery powered by internal combustion engine Fan engineering method (level 2 accuracy) (ISO 22868..2011, IDT) --- GB/T 5395-2014 Forestry and garden machinery vibration measurement gauge for portable handheld operating machinery powered by internal combustion engine Fan handle vibration (ISO 22867..2011, IDT) --- GB/T 15706-2012 General principles of machinery safety design risk assessment and risk reduction (ISO 12100..2010, IDT) --- GB/T 16855.1-2018 Safety related parts of machinery safety control system Part 1. General rules for design (ISO 13849- 1..2015, IDT) --- GB/T 16855.2-2015 Safety related parts of machinery safety control system Part 2. Confirmation (ISO 13849-2. 2012, IDT) --- GB/T 18960-2012 Forestry machinery portable chain saw vocabulary (ISO 6531..2008, IDT) --- GB/T 20456-2012 Forestry machinery portable chain saw passive chain brake performance requirements and test methods (ISO 13772..2009, IDT) --- GB/T 21398-2008 Agricultural and forestry machinery electromagnetic compatibility test methods and acceptance rules (ISO 14982..1998, IDT) --- LY/T 1166-2015 Forestry machinery portable chain saw hand guard mechanical strength (ISO 6534..2007, IDT) --- LY/T 1167-2014 Forestry machinery portable chain saw front hand guard size and clearance (ISO 6533..2012, IDT) --- LY/T 1346-2011 Forestry machinery portable chain saw balance and maximum grip torque determination (ISO 8334..2007, IDT) --- LY/T 1347-1999 Forestry machinery chain saw handle strength determination (idtISO 7915..1991) --- LY/T 1348-2015 Forestry machinery portable chain saw handle minimum clearance and size (ISO 7914..2002, IDT) --- LY/T 1578-2000 size and mechanical strength of portable chain saw stop pin (eqvISO 10726..1992) --- LY/T 1593-2001 Portable chain saw engine performance and fuel consumption (eqvISO 7293..1997) --- LY/T 2725-2016 Forestry machinery portable chain saw rebound test (ISO 9518..1998, MOD) --- LY/T 2890-2017 Portable chain saw chain brake performance test method (ISO 6535..2015, IDT) For ease of use, the following editorial changes have been made in this section. --- Incorporating the contents of ISO 11681-2..2011 amendment 1 ISO 11681-2..2011/Amd1..2017, the amendment The terms involved in the content have been marked by a vertical double line (‖) in the margin of the outer margin. Please note that some content of this document may involve patents. The issuer of this document does not assume responsibility for identifying these patents. This part is proposed by the State Forestry and Grassland Bureau. This part is under the jurisdiction of the National Forestry Machinery Standardization Technical Committee (SAC/TC61). This section was drafted by. Zhejiang Yate Electric Co., Ltd., Zhejiang Zhongma Garden Machinery Co., Ltd., Yongkang Power Technology Co., Ltd. Limited company, Zhejiang Yusen Bailian Tools Co., Ltd., Zhejiang Pineier Technology Co., Ltd., Zhejiang Sanfeng Industrial Co., Ltd., Jiangsu Linhai Power Machinery Group Co., Ltd., Shandong Huasheng Zhongtian Machinery Group Co., Ltd., Nanjing Deshuo Industrial Co., Ltd. The main drafters of this section. Ding Junfeng, Lai Youzheng, Hu Anguo, Tang Enchang, Zhu Daoqing, Yang Feng, Zhang Rongshan, Yan Jin, Gao Yang. The previous versions of the standard replaced by this part are as follows. --- GB 20889-2006; --- GB 19726.2-2013. Safety requirements and tests of forestry machinery portable chain saw Part 2. Pruning chainsaw

1 Scope

This part of GB/T 19726 specifies a portable pruning chain saw powered by an internal combustion engine (hereinafter referred to as pruning chain saw) (see Figure 1). Safety requirements and test methods for design and structure. This section applies to the safety instructions in the instruction manual that have been trained and have been read and understood Full requirements, while using the correct personal protection device, the operator holds the rear handle in the right hand and the front handle in the left hand, and does not include the saw chain and Use a pruning saw to trim the canopy whose net mass is not more than 4.3 kg when the guide plate and oil tank are empty. This section describes the elimination or reduction of pruning The methods of various hazards produced by chain saws stipulate the requirements for information about safe operation provided by manufacturers. This section gives all serious hazards related to pruning saws, normal use and reasonable and predictable misuse. Note. Appendix B lists a list of serious hazards. This section applies to pruning saws produced after its implementation.

2 Normative references

The following documents are essential for the application of this document. For dated references, only the dated version applies to this article Pieces. For the cited documents without date, the latest version (including all amendments) applies to this document. GB/T 23821-2009 Safety of machinery to prevent the upper and lower limbs from reaching the safe distance of the hazardous area (ISO 13857..2008, IDT) ISO 6531..2008 Forestry machinery portable chain saw vocabulary (Machineryforforestry-Portablechain-saws- Vocabulary) ISO 6533 size and clearance of front hand guard of chain saw (Forestrymachinery-Portablechain-sawfronthand- guard-Dimensionsandclearances) ISO 6534 Forestry Machinery Portable Chainsaw Handguard Mechanical Strength (Forestrymachinery-Portablechain-saw handguards-Mechanicalstrength) ISO 6535 portable chain saw chain brake performance (Portablechain-saws-Chainbrakeperformance) ISO 7010 safety symbols and safety signs for graphical symbols are registered safety signs (Graphicalsymbols-Safetycolours andsafetysigns-Registeredsafetysigns) ISO 7293 Forestry machinery portable chain saw engine performance and fuel consumption (Forestrymachinery-Portable chain-saws-Engineperformanceandfuelconsumption) ISO 7914..2002 Forestry machinery portable chain saw handle minimum clearance and size (Forestrymachinery-Portable chain-saws-Minimumhandleclearanceandsizes) ISO 7915 Determination of the strength of forestry machinery chainsaw handlebars (Forestrymachinery-Portablechain-saws-De- terminationofhandlestrength) ISO 8334 Forestry machinery portable chain saw balance determination (Forestrymachinery-Portablechain-saws-De- terminationofbalanceandmaximumholdingmoment) ISO 9518 Forestry machinery portable chain saw rebound test (Forestrymachinery-Portablechain-saws-Kick- backtest)

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