Agricultural and forestry machinery - Knapsack combustion engine driven mistblowers - Safety requirements (ISO 28139:2009)

This International Standard specifies safety requirements and their verification for the design and construction of knapsack mistblowers incorporating a combustion engine where the air flow is generated by a fan. It describes methods for the elimination or reduction of hazards arising from their use. In addition, it specifies the type of information on safe working practices to be provided by the manufacturer. It does not, however, give any technical requirement for reducing noise or vibration hazards. Indeed, the different means available to reduce these hazards are a matter for the technical aids to which the manufacturer may resort, through specialized books or specified bodies. This International Standard deals with all significant hazards, hazardous situations and events, excepting those arising from - electromagnetic compatibility, - static electricity, - explosion or fire from chemicals for spraying, - insufficient structural integrity, and - noise and vibration. It is applicable to knapsack combustion-engine-driven mistblowers when they are used as intended and under the conditions foreseen by the manufacturer (see Clause 4). It is not applicable to knapsack combustion-engine-driven mistblowers manufactured before the date of its publication.

Land- und Forstmaschinen - Rückentragbare verbrennungsmotorengetriebene Sprühgeräte - Sicherheitsanforderungen (ISO 28139:2009)

Diese internationale Norm legt Sicherheitsanforderungen und deren Überprüfung für die Gestaltung und
Konstruktion von rückentragbaren Sprühgeräten mit Verbrennungsmotor, bei denen der Luftstrom mittels
eines Gebläses erzeugt wird, fest.
Sie beschreibt Verfahren zur Vermeidung oder Reduzierung von Gefahren, die aus deren Verwendung
resultieren. Zusätzlich legt sie die Informationen zum sicheren Betrieb, die von dem Hersteller zur Verfügung
zu stellen sind, fest. Sie enthält jedoch keine technischen Anforderungen zur Reduzierung der Gefährdungen
durch Geräusche und Schwingungen. Bei den zur Reduzierung dieser Gefährdungen zur Verfügung
stehenden, verschiedenen Hilfsmitteln handelt es sich um eine technische Unterstützung, auf die der
Hersteller durch Fachbücher oder Fachleute Zugriff hat.
Diese internationale Norm behandelt alle signifikanten Gefährdungen, Gefährdungssituationen
und -Ereignisse mit Ausnahme von
- elektromagnetischer Verträglichkeit,
- elektrostatische Vorgänge,
- Explosionen oder Feuer verursacht durch die beim Sprühen verwendeten Chemikalien,
- Unzureichende Festigkeit, und
- Geräusche und Schwingungen.
Die Norm gilt für rückentragbare, mit Verbrennungsmotor angetriebene Sprühgeräte, wenn sie
bestimmungsgemäß und unter den vom Hersteller vorgesehenen Bedingungen verwendet werden (siehe
Abschnitt 4).
Sie gilt nicht für rückentragbare, mit Verbrennungsmotor betriebene Sprühgeräte, die vor dem
Veröffentlichungsdatum hergestellt wurden.

Matériel agricole et forestier - Atomiseurs a dos a moteur a combustion interne - Exigences de sécurité (ISO 28139:2009)

L'ISO 28139:2009 spécifie les exigences de sécurité et leur vérification pour la conception et la construction de nébulisateurs portés à dos à moteur à combustion interne où le flux d'air est engendré par un ventilateur.
Elle décrit les méthodes d'élimination ou de réduction des phénomènes dangereux dus à leur utilisation. En outre, elle spécifie le type d'informations à fournir par le fabricant en ce qui concerne les pratiques d'utilisation sûre. Toutefois, elle ne stipule aucune exigence technique permettant de réduire les phénomènes dangereux de bruit et de vibrations. Les différents moyens disponibles pour réduire ces risques font en effet l'objet d'une assistance technique à laquelle le fabricant peut avoir recours, à l'aide de livres spécialisés ou en faisant appel à des organismes spécifiés.
L'ISO 28139:2009 traite de tous les phénomènes dangereux, situations dangereuses et événements dangereux significatifs, à l'exception des phénomènes dangereux résultant de la compatibilité électromagnétique, de l'électricité statique, de l'explosion ou du feu par des produits chimiques pulvérisés, d'une intégrité structurale insuffisante, et du bruit et des vibrations.
Elle est applicable aux nébulisateurs portés à dos à moteur à combustion interne, lorsqu'ils sont utilisés normalement et dans les conditions prévues par le fabricant.
Elle n'est pas applicable aux nébulisateurs portés à dos à moteur à combustion interne qui ont été fabriqués avant sa date de publication.

Kmetijski in gozdarski stroji - Nahrbtna škropilnica s pogonskim motorjem z notranjim zgorevanjem - Varnostne zahteve (ISO 28139:2009)

Ta mednarodni standard opredeljuje varnostne zahteve in njihovo preverjanje za načrtovanje in konstrukcijo nahrbtnih škropilnic s pogonskim motorjem z notranjim zgorevanjem, pri katerih tok zraka proizvaja ventilator. Opisuje metode za preprečevanje ali zmanjševanje tveganj, ki izvirajo iz njihove uporabe. Poleg tega opredeljuje vrste podatkov glede varnih delovnih postopkov, ki jih mora zagotoviti proizvajalec. Vendar pa ne podaja nikakršnih tehničnih zahtev za zmanjševanje nevarnosti, povezanih s hrupom ali vibracijami. Različna sredstva, ki so na voljo za zmanjševanje teh nevarnosti, so predmet tehničnih pripomočkov, h katerim se lahko zateče proizvajalec, s pomočjo specializiranih knjig ali opredeljenih organov. Ta mednarodni standard obravnava vse velike nevarnosti, nevarne situacije in primere, z izjemo tistih, ki izvirajo iz – elektromagnetne kompatibilnosti, - statične elektrike, - eksplozije ali ognja zaradi kemikalij za razprševanje, - nezadostne strukturne celovitosti in – hrupa in vibracij.  Uporablja se za nahrbtne škropilnice s pogonskim motorjem z notranjim zgorevanjem, kadar se uporabljajo v skladu z namembnostjo in pod pogoji, ki jih je predvidel proizvajalec (glej Klavzulo 4). Ne uporablja se za nahrbtne škropilnice s pogonskim motorjem z notranjim zgorevanjem, ki so bile proizvedene pred datumom njegove objave.

General Information

Status
Withdrawn
Public Enquiry End Date
19-Oct-2007
Publication Date
01-Feb-2010
Withdrawal Date
13-May-2021
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
13-May-2021
Due Date
05-Jun-2021
Completion Date
14-May-2021

Relations

Buy Standard

Standard
EN ISO 28139:2010 - BARVE
English language
27 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day
Draft
prEN ISO 28139:2007
English language
28 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kmetijski in gozdarski stroji - Nahrbtna škropilnica s pogonskim motorjem z notranjim zgorevanjem - Varnostne zahteve (ISO 28139:2009)Land- und Forstmaschinen - Rückentragbare
verbrennungsmotorengetriebene Sprühgeräte -
Sicherheitsanforderungen (ISO 28139:2009)Matériel agricole et forestier - Atomiseurs a dos a moteur a combustion interne - Exigences de sécurité (ISO 28139:2009)Agricultural and forestry machinery - Knapsack combustion engine driven mistblowers - Safety requirements (ISO 28139:2009)65.060.40Oprema za nego rastlinPlant care equipmentICS:Ta slovenski standard je istoveten z:EN ISO 28139:2009SIST EN ISO 28139:2010en,fr01-marec-2010SIST EN ISO 28139:2010SLOVENSKI
STANDARD



SIST EN ISO 28139:2010



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN ISO 28139
September 2009 ICS 65.060.40 English Version
Agricultural and forestry machinery - Knapsack combustion-engine-driven mistblowers - Safety requirements (ISO 28139:2009)
Matériel agricole et forestier -Nébulisateurs portés à dos à moteur à combustion interne - Exigences de sécurité (ISO 28139:2009)
Land- und Forstmaschinen - Rückentragbare, verbrennungsmotorbetriebene Sprühgeräte - Sicherheitsanforderungen (ISO 28139:2009) This European Standard was approved by CEN on 17 August 2009.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 28139:2009: ESIST EN ISO 28139:2010



EN ISO 28139:2009 (E) 2 Contents Page Foreword .3Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC .4Annex ZB (informative)
Relationship between this
European
Standard and the Essential Requirements
of EU Directive 2006/42/EC .5 SIST EN ISO 28139:2010



EN ISO 28139:2009 (E) 3 Foreword This document (EN ISO 28139:2009) has been prepared by Technical Committee CEN/TC 144 “Tractors and machinery for agriculture and forestry”, the secretariat of which is held by AFNOR, in collaboration with Technical Committee ISO/TC 23 "Tractors and machinery for agriculture and forestry". This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2010, and conflicting national standards shall be withdrawn at the latest by March 2010. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directives. For relationship with EU Directives, see informative Annex ZA and ZB, which are integral parts of this document. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. SIST EN ISO 28139:2010



EN ISO 28139:2009 (E) 4 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC This International Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association to provide a means of conforming to Essential Requirements of the New Approach Directive 98/37/EC on machinery, amended by the New Approach Directive 98/79/EC. Once this standard is cited in the Official Journal of the European Union under that Directive and has been implemented as a national standard in at least one Member State, compliance with the normative clauses, except 7.3 a), d) last indent, e) second indent, 7.4 second indent, of this standard confers, within the limits of the scope of this standard, a presumption of conformity with the relevant Essential Requirements, except Essential Requirements 1.3.2, 1.5.2, 1.5.6, 1.5.7, 1.5.8, 1.5.9, 1.5.11 related to EMC immunity, 1.7.4 f) and 2.2 second and third paragraphs, of that Directive and associated EFTA regulations.
WARNING — Other requirements and other EU Directives may be applicable to the product(s) falling within the scope of this standard. SIST EN ISO 28139:2010



EN ISO 28139:2009 (E) 5 Annex ZB (informative)
Relationship between this
European
Standard and the Essential Requirements
of EU Directive 2006/42/EC This International Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association to provide a means of conforming to Essential Requirements of the New Approach Directive 2006/42/EC on machinery. Once this standard is cited in the Official Journal of the European Union under that Directive and has been implemented as a national standard in at least one Member State, compliance with the normative clauses, except 7.3 a), of this standard confers, within the limits of the scope of this standard, a presumption of conformity with the relevant Essential Requirements, except Essential Requirements 1.3.2, 1.5.2, 1.5.6, 1.5.7, 1.5.8, 1.5.9, 1.5.11 related to EMC immunity, 1.7.4.2 u) and 2.2.1.1, of that Directive and associated EFTA regulations.
WARNING — Other requirements and other EU Directives may be applicable to the product(s) falling within the scope of this standard.
SIST EN ISO 28139:2010



SIST EN ISO 28139:2010



Reference numberISO 28139:2009(E)© ISO 2009
INTERNATIONAL STANDARD ISO28139First edition2009-09-15Agricultural and forestry machinery — Knapsack combustion-engine-driven mistblowers — Safety requirements Matériel agricole et forestier — Nébulisateurs portés à dos à moteur à combustion interne — Exigences de sécurité
SIST EN ISO 28139:2010



ISO 28139:2009(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.
COPYRIGHT PROTECTED DOCUMENT
©
ISO 2009 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56 • CH-1211 Geneva 20 Tel.
+ 41 22 749 01 11 Fax
+ 41 22 749 09 47 E-mail
copyright@iso.org Web
www.iso.org Published in Switzerland
ii © ISO 2009 – All rights reserved
SIST EN ISO 28139:2010



ISO 28139:2009(E) © ISO 2009 – All rights reserved iii Contents Page Foreword.iv Introduction.v 1 Scope.1 2 Normative references.2 3 Terms and definitions.2 4 List of significant hazards.3 5 Safety requirements and/or protective measures.4 5.1 General.4 5.2 Stability when in operation.4 5.3 Exhaust system.4 5.4 Chemical tank and strainer.5 5.5 Air tube and chemical hoses.6 5.6 Controls.6 5.7 Machine support.7 5.8 Harness.7 5.9 Power-driven components.8 5.10 Fuel tank.8 5.11 Protection against contact with hot parts.8 5.12 Protection against contact with chemicals during filling.9 5.13 Protection against contact with parts under high voltage.9 6 Verification of the safety requirements and/or protective measures.9 7 Information for use.10 7.1 General.10 7.2 Technical data.10 7.3 Instruction handbook.10 7.4 Marking.12 7.5 Warnings.12 Annex A (normative)
Liquid-retaining test on harness.13 Annex B (normative)
Stability test on an incline.14 Annex C (informative)
Example of knapsack combustion-engine-driven mistblower.15 Annex D (informative)
Examples of safety signs.16 Bibliography.17
SIST EN ISO 28139:2010



ISO 28139:2009(E) iv © ISO 2009 – All rights reserved Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 28139 was prepared by the European Committee for Standardization (CEN) Technical Committee CEN/TC 144, Tractors and machinery for agriculture and forestry, in collaboration with Technical Committee ISO/TC 23, Tractors and machinery for agriculture and forestry, Subcommittee SC 6, Equipment for crop protection, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement). SIST EN ISO 28139:2010



ISO 28139:2009(E) © ISO 2009 – All rights reserved v Introduction This document is a type-C standard as stated in ISO 12100. The machinery concerned and the extent to which hazards, hazardous situations or hazardous events are covered are indicated in the Scope of this document. When requirements of this type-C standard are different from those which are stated in type-A or B standards, the requirements of this type-C standard take precedence over the requirements of the other standards for machines that have been designed and built according to the requirements of this type-C standard.
SIST EN ISO 28139:2010



SIST EN ISO 28139:2010



INTERNATIONAL STANDARD ISO 28139:2009(E) © ISO 2009 – All rights reserved 1 Agricultural and forestry machinery — Knapsack combustion-engine-driven mistblowers — Safety requirements IMPORTANT — The electronic file of this document contains colours which are considered to be useful for the correct understanding of the document. Users should therefore consider printing this document using a colour printer. 1 Scope This International Standard specifies safety requirements and their verification for the design and construction of knapsack mistblowers incorporating a combustion engine where the air flow is generated by a fan. It describes methods for the elimination or reduction of hazards arising from their use. In addition, it specifies the type of information on safe working practices to be provided by the manufacturer. It does not, however, give any technical requirement for reducing noise or vibration hazards. Indeed, the different means available to reduce these hazards are a matter for the technical aids to which the manufacturer may resort, through specialized books or specified bodies. This International Standard deals with all significant hazards, hazardous situations and events, excepting those arising from ⎯ electromagnetic compatibility, ⎯ static electricity, ⎯ explosion or fire from chemicals for spraying, ⎯ insufficient structural integrity, and ⎯ noise and vibration. It is applicable to knapsack combustion-engine-driven mistblowers when they are used as intended and under the conditions foreseen by the manufacturer (see Clause 4). It is not applicable to knapsack combustion-engine-driven mistblowers manufactured before the date of its publication. SIST EN ISO 28139:2010



ISO 28139:2009(E) 2 © ISO 2009 – All rights reserved 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 3767-5:1992, Tractors, machinery for agriculture and forestry, powered lawn and garden equipment — Symbols for operator controls and other displays — Part 5: Symbols for manual portable forestry machinery ISO 3864-1:2002, Graphical symbols — Safety colours and safety signs — Part 1: Design principles for safety signs in workplaces and public areas ISO 8893:1997, Forestry machinery — Portable brush-cutters and grass-trimmers — Engine performance and fuel consumption ISO 9357:1990, Equipment for crop protection — Agricultural sprayers — Tank nominal volume and filling hole diameter ISO 11684:1995, Tractors, machinery for agriculture and forestry, powered lawn and garden equipment — Safety signs and hazard pictorials — General principles ISO 12100-1:2003, Safety of machinery — Basic concepts, general principles for design — Part 1: Basic terminology, methodology ISO 12100-2:2003, Safety of machinery — Basic concepts, general principles for design — Part 2: Technical principles ISO 13732-1:2006, Ergonomics of the thermal environment — Methods for the assessment of human responses to contact with surfaces — Part 1: Hot surfaces ISO 13857:2008, Safety of machinery — Safety distances to prevent hazard zones being reached by upper and lower limbs ISO 19932-1:2006, Equipment for crop protection — Knapsack sprayers — Part 1: Requirements and test methods 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 12100-1:2003 and the following apply. 3.1 knapsack mistblower machine with a backpack power unit designed for applying chemicals to crops by means of a hand-held spraying device with the liquid being contacted, nebulized and transported by a high-speed air flow generated by a fan NOTE An example of this machine is given in Annex C. 3.2 backpack power unit power source which is designed to be carried on the operator’s shoulders by means of a supporting device and harness 3.3 harness adjustable strap(s) used to suspend the machine from the operator SIST EN ISO 28139:2010



ISO 28139:2009(E) © ISO 2009 – All rights reserved 3 3.4 silencer device for directing the exhaust gases 3.5 engine stopping device control fitted to the machine which stops the engine 3.6 suspension point device on the machine to which the harness can be attached 3.7 throttle trigger throttle control device, usually a lever, activated by the operator’s hand or finger, for controlling the engine speed 3.8 throttle lock device for temporarily setting the throttle in a partially open position 3.9 throttle trigger lockout device that prevents unintentional activation of the throttle trigger 3.10 chemical pump control device device, usually a lever, activated by the operator’s hand or finger to engage or disengage the pump for filling the chemical tank 3.11 air tube tube for the air flow between the fan and the nozzle 3.12 normal operation use of the machine that is reasonably foreseeable and which is consistent with such activities as distribution of chemicals, starting, stopping, fuelling and filling with chemicals 3.13 normal use normal operation, plus routine maintenance, servicing, cleaning, transporting, attaching or removing accessories, and the making of ordinary adjustments as determined by the manufacturer’s instructions 3.14 throttle limiting device manually activated device allowing different maximum positions of the throttle without preventing the return of the throttle to the idling position, designed to facilitate operation of the engine over a longer working period 4 List of significant hazards For the purposes of this International Standard, Table 1 gives, for defined danger zones, the significant hazards, the significant hazardous situations and the significant hazardous events covered by this International Standard that have been identified by risk assessment as being significant for this type of machine, and which require specific action to eliminate or to reduce the risk. SIST EN ISO 28139:2010



ISO 28139:2009(E) 4 © ISO 2009 – All rights reserved Table 1 — List of significant hazards, hazardous situations and events associated with knapsack combustion-engine-driven mistblowers Hazard Subclause 1 Cutting or severing hazards related to the power-driven components 5.9 2 Entanglement hazard related to the power-driven components 5.9 3 Drawing-in or trapping hazards related to the power-driven components 5.9 4 Electrical hazards, created by contact with parts under high voltage (direct contact) or parts which have become under high voltage under faulty conditions (indirect contact) 5.13 5 Thermal hazards resulting in burns, scalds and other injuries, created by possible contact of persons with objects or materials with high temperature, including the radiation of heat sources 5.11, 7.3 6 Hazards resulting from contact with or inhalation of exhaust gases and sprayed products 5.3, 5.4, 5.5, 5.13, 7.3 7 Fire or explosion hazard related to fuel spillage 5.10, 7.3 8 Hazards from neglect of ergonomic principles in machine design, such as hazards from unhealthy postures or excessive efforts and inadequate consideration of human hand-arm anatomy related to handle design 5.1, 5.6, 5.7, 5.8 9 Hazards from failure of the control system related to handle strength, position of controls and marking 5.6, 7.4 10 Hazards from unexpected start-up, unexpected overrun/over-speed from failure/disorder of the control system related to failure in the position of the controls 5.6 11 Hazards from impossibility of stopping the machine in the best possible conditions related to the position of the engine stopping device 5.6 12 Hazards from ejection of fluids related to fuel spillage 5.10 13 Stability when in operation 5.2 5 Safety requirements and/or protective measures 5.1 General Machinery shall comply with the safety requirements and/or protective measures of this clause. In addition, the machine shall be designed according to the principles of ISO 12100 for relevant but not significant hazards which are not dealt with by this International Standard. It is recommended that the overall mass of the knapsack mistblower at the maximum load, measured with full fuel and chemical tanks, as indicated by the manufacturer, not exceed 30 kg for men and 25 kg for women. 5.2 Stability when in operation The centre of gravity of the upright sprayer shall not be located at a horizontal distance greater than 150 mm from the vertical plane passing through the fixation points of the harness at the full gross mass of the machine. Compliance shall be checked by measurement. 5.3 Exhaust system The exhaust outlet shall be located so as to direct exhaust emissions away from the operator in the normal operating position. Compliance shall be checked by inspection and functional testing. SIST EN ISO 28139:2010



ISO 28139:2009(E) © ISO 2009 – All rights reserved 5 5.4 Chemical tank and strainer 5.4.1 General The chemical tank shall be easy to clean both inside and outside. It shall be provided with a strainer having a mesh width not greater than 2 mm whose removal and mounting operations shall be easily carried out with the use of gloves. The tank shall be equipped with a volumetric scale according to ISO 9357. The volumetric scale shall have a maximum error of ± 7,5 % up to a filling level of 20 % of nominal capacity and ± 5 % for greater filling levels. During filling and emptying operations, the level of chemicals inside the tank shall be visible. The nominal volume shall be specified in whole litres. Additionally, filling levels and limits shall be visible during the filling operation. If the mistblower is fitted with an auxiliary pump, the control of the pump shall be positioned so that it can be easily reached by the operator in the normal operating position. Compliance shall be checked by inspection, functional testing and measurement. 5.4.2 Protection against chemical spillage and overflow The actual overall volume of the tank shall exceed the nominal volume by at least 5 %. To avoid chemical spillage during filling, the diameter of the filling opening shall be in accordance with ISO 9357. However, it shall be possible to fill the tank to its nominal capacity within 60 s, without any liquid spillage, using the device described in ISO 19932-1:2006, Annex C. The filling tank opening shall be fitted with a lid, which shall ⎯ have a retainer, ⎯ be able to be opened and closed without the use of a special tool, and ⎯ be fitted with a holding device ensuring a closed position by means of a positive mechanical action (for example, lids fixed by screwing). Compliance shall be checked by inspection, functional testing and measurement. 5.4.3 Protection against contact with chemicals when draining It shall be possible to fully empty the chemical tank without overturning the machine. The operator shall be prevented from coming into contact with the chemicals when emptying the tank. This requirement is met if ⎯ the draining outlet can be opened without the use of a tool (for example, by means of a tap), and ⎯ the flow is directed away from the operator. Compliance shall be checked by inspection and functional testing. SIST EN ISO 28139:2010



ISO 28139:2009(E) 6 © ISO 2009 – All rights reserved 5.5 Air tube and chemical hoses The air tube shall be fitted with a handle on which a throttle trigger complying with 5.6.2 and an engine stopping device complying with 5.6.3 are mounted. To adjust the flow of chemicals to the nozzle, an on-off valve shall be fitted such that it can be easily reached by the operator in working position. The minimum length of the lance from the front of the hand trigger grip to the nozzle shall be 500 mm. The air tube shall not be detachable without the use of a tool. Compliance shall be checked by inspection, functional testing and measurement. 5.6 Controls 5.6.1 General All controls shall be designed to be operable by an operator wearing gloves. Compliance shall be checked by functional testing. Where the purpose of a control might not be obvious to the user, the control's function, direction and/or method of operation shall be clearly identified by a durable label or mark. Compliance shall be checked by inspection. Detailed instructions on the operation of the control(s) shall be provided in the instruction handbook. Compliance shall be checked by inspection. 5.6.2 Throttle trigger The machine shall be fitted with a throttle trigger that, when released, automatically reverts to the idling position and that is retained in that position by the automatic engagement of a throttle trigger lockout. The throttle trigger shall be positioned so that it can be pressed and released with a gloved hand holding the handle on which the throttle trigger is mounted. The length of the gripping surface of the handle shall be W 100 mm. If a throttle lock is provided for starting, it shall be automatically released when the throttle trigger is operated. The throttle lock shall be designed so that two or more independent motions are required to engage the throttle lock. If a throttle limiting device is provided, it shall be positioned so that it can be operated and easily released by a gloved hand holding the handle to which the device is mounted. Compliance shall be checked by inspection, functional testing and measurement. 5.6.3 Engine stopping device The machine shall be fitted with an engine stopping device by which the engine can be brought to a full stop and that does not depend on sustained manual effort for its operation. The control for this device shall be attached adjacent to the throttle contr
...

SLOVENSKI STANDARD
oSIST prEN ISO 28139:2007
01-september-2007
Kmetijski in gozdarski stroji - Nahrbtna škropilnica s pogonskim motorjem z
notranjim zgorevanjem - Varnostne zahteve (ISO/DIS 28139:2007)
Agricultural and forestry machinery - Knapsack combustion engine driven mistblowers -
Safety requirements (ISO/DIS 28139:2007)
Matériel agricole et forestier - Atomiseurs a dos a moteur a combustion interne -
Exigences de sécurité (ISO/DIS 28139:2007)
Ta slovenski standard je istoveten z: prEN ISO 28139
ICS:
65.060.40 Oprema za nego rastlin Plant care equipment
oSIST prEN ISO 28139:2007 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
EUROPEAN STANDARD
DRAFT
prEN ISO 28139
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2007
ICS 65.060.40

English Version
Agricultural and forestry machinery - Knapsack combustion
engine driven mistblowers - Safety requirements (ISO/DIS
28139:2007)
Matériel agricole et forestier - Atomiseurs à dos à moteur à
combustion interne - Exigences de sécurité (ISO/DIS
28139:2007)
This draft European Standard is submitted to CEN members for parallel enquiry. It has been drawn up by the Technical Committee
CEN/TC 144.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the
same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2007 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN ISO 28139:2007: E
worldwide for CEN national Members.

---------------------- Page: 2 ----------------------
prEN ISO 28139:2007 (E)
Contents Page
Foreword.3

2

---------------------- Page: 3 ----------------------
prEN ISO 28139:2007 (E)
Foreword
This document (prEN ISO 28139:2007) has been prepared by Technical Committee CEN/TC 144 “Tractors
and machinery for agriculture and forestry", the secretariat of which is held by AFNOR, in collaboration with
Technical Committee ISO/TC 23 "Tractors and machinery for agriculture and forestry".
This document is currently submitted to the parallel Enquiry.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EC Directive(s).
3

---------------------- Page: 4 ----------------------
DRAFT INTERNATIONAL STANDARD ISO/DIS 28139
ISO/TC 23/SC 6 Secretariat: AFNOR
Voting begins on: Voting terminates on:
2007-07-12 2007-12-12
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION
Agricultural and forestry machinery — Knapsack combustion
engine driven mistblowers — Safety requirements
Matériel agricole et forestier — Atomiseurs à dos à moteur à combustion interne — Exigences de sécurité
ICS 65.060.40

ISO/CEN PARALLEL ENQUIRY
This draft International Standard is a draft standard developed within the European Committee for
Standardization (CEN) and processed under the CEN-lead mode of collaboration as defined in the
Vienna Agreement. The document has been transmitted by CEN to ISO for circulation for ISO member
body voting in parallel with CEN enquiry. Comments received from ISO member bodies, including those
from non-CEN members, will be considered by the appropriate CEN technical body. Should this DIS be
accepted, a final draft, established on the basis of comments received, will be submitted to a parallel two-
month FDIS vote in ISO and formal vote in CEN.
To expedite distribution, this document is circulated as received from the committee secretariat.
ISO Central Secretariat work of editing and text composition will be undertaken at publication
stage.
Pour accélérer la distribution, le présent document est distribué tel qu'il est parvenu du
secrétariat du comité. Le travail de rédaction et de composition de texte sera effectué au
Secrétariat central de l'ISO au stade de publication.
THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPROVAL. IT IS THEREFORE SUBJECT TO CHANGE AND MAY NOT BE
REFERRED TO AS AN INTERNATIONAL STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS BEING ACCEPTABLE FOR INDUSTRIAL, TECHNOLOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN NATIONAL REGULATIONS.
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION.
©
International Organization for Standardization, 2007

---------------------- Page: 5 ----------------------
ISO/DIS 28139
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall
not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the
unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.
Copyright notice
This ISO document is a Draft International Standard and is copyright-protected by ISO. Except as permitted
under the applicable laws of the user's country, neither this ISO draft nor any extract from it may be
reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, photocopying,
recording or otherwise, without prior written permission being secured.
Requests for permission to reproduce should be addressed to either ISO at the address below or ISO's
member body in the country of the requester.
ISO copyright office
Case postale 56  CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Reproduction may be subject to royalty payments or a licensing agreement.
Violators may be prosecuted.
©
ii ISO 2007 – All rights reserved

---------------------- Page: 6 ----------------------
ISO/DIS 28139
Contents Page
Foreword .iv
Introduction.iv
1 Scope.1
2 Normative references.1
3 Terms and definitions .2
4 List of significant hazards .3
5 Safety requirements and/or protective measures.4
5.1 General .4
5.2 Exhaust system .4
5.3 Chemicals tank and strainer .4
5.3.1 Protection against chemicals spillage and overflow.4
5.3.2 Protection against contact with chemicals when draining.5
5.4 Air tube and chemicals hoses.5
5.5 Controls.5
5.5.1 Throttle trigger.5
5.5.2 Engine stopping device .5
5.5.3 Starting device.6
5.5.4 Chemicals pump control device .6
5.5.5 Liquid line shut-off valve .6
5.6 Machine support.6
5.7 Harness .6
5.8 Power driven components .6
5.8.1 Tortuous path guarding test .7
5.9 Fuel tank openings.8
5.10 Protection against contact with hot parts.8
5.11 Fan.8
5.12 Ejection of parts of machine .8
5.13 Stability.9
5.14 Protection against contact with parts under high voltage.9
6 Verification of safety requirements and/or measures .9
7 Information for use.10
7.1 General .10
7.2 Technical data.10
7.3 Instruction handbook.10
7.4 Marking.12
Annex A (normative) Liquid retaining test on harness .13
Annex B (normative) Ejection of parts of machine.14
Annex C (informative) Stability test on an incline .16
Annex D (informative) Example of knapsack combustion engine driven mistblower.17
Annex E (informative) Example of safety symbols.18
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Machinery Directive 98/37/CE, amended by Directive 98/79/CE .19
Annex ZB (informative) Relationship between this International Standard and the Essential
Requirements of EU Directive 2006/42/EC.20

Bibliography.21

© ISO 2007 – All rights reserved iii

---------------------- Page: 7 ----------------------
ISO/DIS 28139
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 28139 was prepared by Technical Committee ISO/TC 23, Tractors and machinery for agriculture and
forestry, Subcommittee SC 6, and by Technical Committee CEN/TC 144, Tractors and machinery for
agriculture and forestry in collaboration.
Introduction
This document is a type C standard as stated in ISO 12100.
The machinery concerned and the extent to which hazards, hazardous situations and
hazardous events are covered are indicated in the scope of this document.
When provisions of this type C standard are different from those which are stated in type A or B standards, the
provisions of this type C standard take precedence over the provisions of the other standards, for machines
that have been designed and built according to the provisions of this type C standard.

iv © ISO 2007 – All rights reserved

---------------------- Page: 8 ----------------------
DRAFT INTERNATIONAL STANDARD ISO/DIS 28139

Agricultural and forestry machinery — Knapsack combustion
engine driven mistblowers — Safety requirements
1 Scope
This International Standard specifies the safety requirements and their verification for the design and
construction of knapsack mistblowers incorporating a combustion engine.
It describes methods for the elimination or reduction of hazards arising from their use. In addition, it specifies
the type of information on safe working practices to be provided by the manufacturer. It does not however give
any technical requirement to reduce noise and vibration hazards. Indeed the different means available to
reduce these hazards are a matter for the technical aids to which the manufacturer may resort, through
specialized books or specified bodies.
This International Standard deals with all the significant hazards, hazardous situations and events excepting
environmental hazards and hazards arising from electromagnetic compatibility, noise and vibrations relevant
to knapsack combustion engine driven mistblowers, when they are used as intended and under the conditions
foreseen by the manufacturer (see Clause 4).
This International Standard is not applicable to knapsack combustion engine driven mistblowers which are
manufactured before the date of this document by ISO.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 3767-5: 1992, Tractors, machinery for agriculture and forestry, powered lawn and garden equipment –
Symbols for operator controls and other displays – Part 5: Symbols for manual portable forestry machinery
ISO 3864-1: 2002, Graphical symbols – Safety colours and safety signs – Part 1: Design principles for safety
signs in workplaces and public areas
ISO 9357: 1990, Equipment for crop protection – Agricultural sprayers – Tank nominal volume and filling hole
diameter
ISO 11684: 1995, Tractors, machinery for agriculture and forestry, powered lawn and garden equipment –
Safety signs and hazard pictorials – General principles
ISO 12100-1: 2003, Safety of machinery – Basic concepts, general principles for design – Part 1: Basic
terminology, methodology
ISO 12100-2: 2003, Safety of machinery – Basic concepts, general principles for design – Part 2: Technical
principles
EN ISO 13732-1:2006, Ergonomics of the thermal environment - Methods for the assessment of human
responses to contact with surfaces - Part 1: Hot surfaces (ISO 13732-1:2006)
© ISO 2007 – All rights reserved 1

---------------------- Page: 9 ----------------------
ISO/DIS 28139
ISO 19932-1: 2006, Equipment for crop protection – Knapsack sprayers – Part 1: Requirements and test
methods
EN 294:1992, Safety of machinery – Safety distances to prevent danger zones being reached by the upper
limbs
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 12100-1:2003 and the following
apply.
3.1
mistblower
machine used for applying chemicals to crops with the liquid being contacted, nebulized and transported by a
high speed air flow generated by a fan
NOTE An example of this machine is given in Annex D.
3.2
backpack power unit
power source which is designed to be carried on the operator’s shoulders by means of supporting device and
a harness
3.3
harness
adjustable strap(s) used to suspend the machine from the operator
3.4
silencer
device for reducing engine exhaust noise and directing the exhaust gases
3.5
engine stopping device
control fitted to the machine which stops the engine
3.6
suspension point
device on the machine to which the harness can be attached
3.7
throttle trigger, throttle control
device, usually a lever, activated by the operator’s hand or finger, for controlling the engine speed
3.8
throttle lock
device for temporarily setting the throttle in a partially open position
3.9
throttle trigger lockout
device that prevents unintentional activation of the throttle trigger
3.10
chemicals pump control device
device, usually a lever, activated by the operator’s hand or finger to engage or disengage the pump for filling
the chemicals tank
2 © ISO 2007 – All rights reserved

---------------------- Page: 10 ----------------------
ISO/DIS 28139
3.11
air tube
tube for the air flow from the fan to the outlet
3.12
normal operation
any use of the machine, which is reasonably foreseeable, as seen by the ordinary user, and which is
consistent with such activities as distribution of chemicals, starting, stopping, fuelling and chemicals filling
3.13
normal use
normal operation, plus routine maintenance, servicing, cleaning, transporting, attaching or removing
accessories, and making ordinary adjustments as determined by the manufacturer’s instructions
3.14
throttle limiting device
manually activated device to set the throttle setting in a steady position to facilitate operation of the engine
over a longer working period
4 List of significant hazards
For the purposes of this document, Table 1 gives, for defined danger zones, all the significant hazards, the
significant hazardous situations and the significant hazardous events, covered by this document, that have
been identified by risk assessment as being significant for this type of machine, and which require specific
action to eliminate or to reduce the risk.
Table 1 — List of significant hazards associated with knapsack combustion
engine driven mistblowers
N Hazard Location or event Clause/subclause
of this document
1 cutting or severing hazard 5.8, 5.11

2 entanglement hazard 5.8, 5.11

3 drawing-in or trapping hazard 5.8, 5.11
4 electrical contact (direct or indirect) 5.14
5 burns and scalds, by a possible contact of persons, by 5.10, 7.3
flames or explosions and also by the radiation of heat
source
6 hazards resulting from contact with or inhalation of harmful 5.2, 5.3, 5.4, 7.3
fluids, gases, mists, fumes and dusts
7 fire or explosion hazard 5.9, 7.3
8 unhealthy postures or excessive efforts 5.1, 5.6, 5.7
9 neglected use of personal protection equipment 7.3, 7.4
10 human error 7.3
11 Inadequate design, location or identification of manual 5.5
controls
12 failure, malfunction of control system (unexpected start up, 5.5
unexpected overrun)
13 Impossibility of stopping the machine in the best possible 5.5
conditions
14 Failure of the control circuit  5.5, 7.4
15 errors of fitting 7.3
16 ejection of machine parts or fluids 5.9, 5.12
17 loss of stability (of machinery and machine parts) 5.13

© ISO 2007 – All rights reserved 3

---------------------- Page: 11 ----------------------
ISO/DIS 28139
5 Safety requirements and/or protective measures
5.1 General
Machinery shall comply with the safety requirements and/or protective measures of this Clause. In addition,
the machine shall be designed according to the principles of ISO 12100-1, Clause 5 for relevant but not
significant hazards, which are not dealt with by this document. For these hazards ISO 12100-2 may be used
for guidance.
The overall mass of the knapsack mistblower at the maximum load indicated by the manufacturer shall not
exceed 30 kg. The centre of gravity of the upright sprayer shall not be located in a horizontal distance greater
than 150 mm from the vertical plane passing through the fixation points of the harness at the full gross mass
of the machine.
5.2 Exhaust system
The exhaust outlet shall be so located as to direct exhaust emissions away from the operator in normal
operating position.
5.3 Chemicals tank and strainer
Chemicals tank shall be easy to clean both inside and outside and it shall also be provided with a strainer with
a mesh width not greater than 2 mm whose removing and mounting operations shall be easily carried out with
the use of gloves.
The tank shall be equipped with a volumetric scale according to ISO 9357.
The volumetric scale shall have a maximum error of ± 7,5 % up to a filling level of 20 % of nominal capacity
and ± 5 % for greater filling level.
The nominal volume shall be specified in whole l. Additionally, filling levels and limits shall be visible during the
filling operation.
During filling and emptying operations the level of chemicals inside the tank shall be visible.
If the mistblower is fitted with an auxiliary pump, the control of the pump shall be positioned so that it can be
easily reached by the operator in normal operating position.
5.3.1 Protection against chemicals spillage and overflow
The actual overall volume of the tank shall exceed the nominal volume by at least 5 %.
To avoid chemicals spillage during filling, the diameter of the filling opening shall be in accordance with
ISO 9357.
It shall be however possible to fill the tank up to its nominal capacity within 60 s without any liquid spillage by
using the device described in Annex C of ISO 19932-1:2006.
The filling tank opening shall be fitted with a lid. The lid shall:
 have a retainer;
 be opened and closed without the use of a special tool;
 be fitted with a holding device ensuring a closed position by means of a positive mechanical action (for
example, lids fixed by screwing);
4 © ISO 2007 – All rights reserved

---------------------- Page: 12 ----------------------
ISO/DIS 28139
 be constructed so that the machine meets the leakage test described in 5.6 of ISO 19932-1:2006.
5.3.2 Protection against contact with chemicals when draining
It shall be possible to fully empty the chemicals tank without overturning the machine.
The operator shall be prevented from contact with the chemicals when emptying the tank. This requirement is
met if:
 the draining outlet can be opened without the use of a tool (for example by means of a tap); and
 the flow is directed away from the operator.
5.4 Air tube and chemicals hoses
The air tube shall be fitted with a handle on which a throttle trigger complying with 5.5.1 and an engine
stopping device complying with 5.5.2 are mounted.
To adjust the chemicals flow to the nozzle an on-off valve shall be fitted so that it can be easily reached by the
operator in working position.
5.5 Controls
All controls shall be designed to be operable by an operator wearing gloves.
Controls, whose purpose is not obvious to the user, shall have the function, direction and/or method of
operation clearly identified by a durable label or mark.
Detailed instructions on the operation of the control(s) shall be provided in the instruction handbook.
Compliance shall be checked by inspection.
5.5.1 Throttle trigger
The machine shall be fitted with a throttle trigger that, when released, automatically reverts to the idling
position and is retained in that position by the automatic engagement of a throttle trigger lockout.
The throttle trigger shall be positioned so that it can be pressed and released with one hand when holding the
handle on which the throttle trigger is mounted.
If a throttle lock is provided for starting, it shall be automatically released when the throttle trigger is operated.
The throttle lock shall be so designed that two or more independent motions are required to engage the
throttle lock.
If a throttle limiting device is provided, it shall be so positioned that it can be operated and released by the
hand holding the handle to which the device is mounted. Compliance shall be checked by inspection.
5.5.2 Engine stopping device
The machine shall be fitted with an engine stopping device by which the engine can be brought to a full stop
and does not depend on sustained manual effort for its operation. The control for this device shall be attached
adjacent to the throttle control so that it can be operated while the operator is in working position.
The purpose and method of operation of the device shall be clearly and durably marked. The colour of the
control shall clearly contrast with the background.
© ISO 2007 – All rights reserved 5

---------------------- Page: 13 ----------------------
ISO/DIS 28139
5.5.3 Starting device
A starting device shall be provided to allow starting of the engine without using separate independent auxiliary
assistance (for example belts, cables).
When the machine is fitted with an electric starting device, two or more independent motions are required to
engage the device.
5.5.4 Chemicals pump control device
The control device shall be so positioned that it can be easily reached by the operator in normal operating
position.
5.5.5 Liquid line shut-off valve
Spray liquid lines shall be equipped with a shut-off valve which shall be so positioned, that it can be easily
reached by the operator in normal operating position. Compliance shall be checked by inspection.
5.6 Machine support
The machine shall be supported by on a backpack frame designed to distribute the load evenly on the
operator’s back, shoulders and waist.
5.7
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.