1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 26322-2:2010Tractors for agriculture andforestry SafetyPart 2: Narrow-track and small tractorsBS ISO 26322-2:2010 BRITISH STANDARDNational forewordThis British Standard is
2、 the UK implementation of ISO 26322-2:2010.The UK participation in its preparation was entrusted to TechnicalCommittee AGE/6, Agricultural tractors and forestry machinery.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purpor
3、t to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2010ISBN 978 0 580 62545 9ICS 65.060.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards
4、 Policy and Strategy Committee on 31 October 2010.Amendments issued since publicationDate Text affectedBS ISO 26322-2:2010Reference numberISO 26322-2:2010(E)ISO 2010INTERNATIONAL STANDARD ISO26322-2First edition2010-10-01Tractors for agriculture and forestry Safety Part 2: Narrow-track and small tra
5、ctors Tracteurs agricoles et forestiers Scurit Partie 2: Tracteurs voie troite et tracteurs compacts BS ISO 26322-2:2010ISO 26322-2:2010(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edi
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8、dies. 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 2010 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any
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10、opyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2010 All rights reservedBS ISO 26322-2:2010ISO 26322-2:2010(E) ISO 2010 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies).
11、 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-
12、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
13、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
14、 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 26322-2 was prepared by Technical Committee ISO/TC 23, Tractors and machinery for agricult
15、ure and forestry, Subcommittee SC 4, Tractors. This first edition of ISO 26322-2, together with ISO 26322-1, cancels and replaces ISO 4254-3:1992, of which it constitutes a technical revision. It also incorporates requirements for tractor safety formerly given in ISO 4254-1. Additional requirements
16、have been included in order to take account of the technical evolution of the tractors and changes in their use that have occurred since publication of the replaced International Standard. ISO 26322 consists of the following parts, under the general title Tractors for agriculture and forestry Safety
17、: Part 1: Standard tractors Part 2: Narrow-track and small tractors BS ISO 26322-2:2010BS ISO 26322-2:2010INTERNATIONAL STANDARD ISO 26322-2:2010(E) ISO 2010 All rights reserved 1Tractors for agriculture and forestry Safety Part 2: Narrow-track and small tractors 1 Scope This part of ISO 26322 speci
18、fies the general safety requirements and their verification for the design and construction of narrow-track and small tractors used in agriculture and forestry. It also specifies the type of information on safe working practices, including residual risks, to be provided by the manufacturer. It provi
19、des technical means for improving the level of personal safety of operators and others involved in the course of the normal operation, maintenance and use of these tractors. It is applicable to narrow-track tractors having at least two axles for pneumatic-tyred wheels, or having tracks instead of wh
20、eels with a smallest fixed or adjustable track width of not more than 1 150 mm, and to small tractors having an unladen mass not greater than 600 kg. NOTE Tractors having a smallest fixed or adjustable track width greater than 1 150 mm and an unladen mass greater than 600 kg are dealt with in ISO 26
21、322-1. It is not applicable to vibration or braking. 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 (includin
22、g any amendments) applies. ISO 500-1, Agricultural tractors Rear-mounted power take-off types 1, 2 and 3 Part 1: General specifications, safety requirements, dimensions for master shield and clearance zone ISO 500-2, Agricultural tractors Rear-mounted power take-off types 1, 2 and 3 Part 2: Narrow-t
23、rack tractors, dimensions for master shield and clearance zone ISO 3776-1, Tractors and machinery for agriculture Seat belts Part 1: Anchorage location requirements ISO 3776-2, Tractors and machinery for agriculture Seat belts Part 2: Anchorage strength requirements ISO 3776-3, Tractors and machiner
24、y for agriculture Seat belts Part 3: Requirements for assemblies ISO 4252, Agricultural tractors Operators workplace, access and exit Dimensions ISO 5353, Earth-moving machinery, and tractors and machinery for agriculture and forestry Seat index point ISO 8759-1, Agricultural wheeled tractors Front-
25、mounted equipment Part 1: Power take-off and three-point linkage BS ISO 26322-2:2010ISO 26322-2:2010(E) 2 ISO 2010 All rights reservedISO 12003-1, Agricultural and forestry tractors Roll-over protective structures on narrow-track wheeled tractors Part 1: Front-mounted ROPS ISO 12003-2, Agricultural
26、and forestry tractors Roll-over protective structures on narrow-track wheeled tractors Part 2: Rear-mounted ROPS ISO 23205:2006, Agricultural tractors Instructional seat ISO 26322-1:2008, Tractors for agriculture and forestry Safety requirements Part 1: Standard tractors 3 Terms and definitions For
27、the purposes of this document, the terms and definitions given in ISO 26322-1 and the following apply. 3.1 narrow-track tractor agricultural or forestry tractor having an unladen mass greater than 600 kg and a fixed or adjustable minimum track width of the axle fitted with the larger tyres of not mo
28、re than 1 150 mm, it being possible to set the track width of the axle fitted with the smaller tyres so that the overall width across those tyres is not greater than the overall width across the larger tyres, and on which, if both axles are fitted with tyres of the same size, the fixed or adjustable
29、 track width of both axles is not greater than 1 150 mm 3.2 small tractor agricultural or forestry tractor having an unladen mass not greater than 600 kg 4 Safety requirements 4.1 Fundamental principles and design guidance The fundamental principles and design guidance given in ISO 26322-1:2008, 4.1
30、, apply.1)4.2 Noise For noise, the provisions of ISO 26322-1:2008, 4.2, apply. 4.3 Controls For controls, the provisions of ISO 26322-1:2008, 4.3, apply. 4.4 Operator station 4.4.1 Boarding means 4.4.1.1 General The provisions of ISO 26322-1:2008, 4.4.1.1, apply. 1) This includes reference to ISO 12
31、100-1:2003, Clause 5, since replaced by ISO 12100:2010, Safety of machinery General principles for design Risk assessment and risk reduction, Clauses 4 and 5. BS ISO 26322-2:2010ISO 26322-2:2010(E) ISO 2010 All rights reserved 34.4.1.2 Steps and ladders For steps and ladders, the provisions of ISO 2
32、6322-1:2008, 4.4.1.2, apply. 4.4.1.3 Handrails/handholds For handrails/handholds, the provisions of ISO 26322-1:2008, 4.4.1.3, apply. 4.4.2 Operators workplace 4.4.2.1 The operators workplace, access and exit dimensions shall be in accordance with ISO 4252, except for Table 1, whose values shall be
33、replaced by the values given in Table 1 below. Table 1 Minimum internal clearance dimensions Distance Minimum dimension mm Distance from a point 90 mm below and (140 + ah) mm behind the seat index point (SIP) to any part of the cab ceiling surface, above, forward and to either side of the operators
34、heada940cDistance from the SIP to the cabin back wall at a height between 210 mm above the SIP and the roof contour defined by the 910 mm radius and the 150 mm blend radius 260 + ahLateral clearance at any distance between 310 mm above the SIP and the roof contour defined by the 910 mm radius, perpe
35、ndicular to the vertical reference plane for a distance of (310 + ah) mm forward and (140 + ah) mm rearward from the SIP 350 Distance from the outer side of the steering-wheel rim to the cabin surface or other hand controlsb50 aSoft materials such as padding may penetrate into the free space up to a
36、 maximum of 50 mm. bExcluding hand controls mounted on the steering column. cIt is intended that, at the next revision of this part of ISO 26322, this value be further evaluated, taking into considerationthe development of the physical dimensions of operators and the operating environment of these t
37、ractors. 4.4.2.2 There shall be no shearing or crushing points within hand or foot reach of the operator when seated in the seat provided. 4.4.2.3 The foot reach of the operator is defined by a hemisphere of 800 mm radius centred on the seat centreline at the front edge of the cushion and extending
38、downwards, with the seat in its central position. The hand reach of the operator is divided into spherical volumes A and B, as shown in Figure 1. The spherical centre point of the volumes is located 60 mm in front and 580 mm above the SIP, as defined in ISO 5353 and indicated in Figure 1. Volume A i
39、s formed by a spherical radius of 550 mm, volume B is the volume between this radius and a spherical radius of 1 000 mm. Within volume A, a minimum clearance of 120 mm between power and inertia-operated, and other adjacent parts, shall be maintained. Within volume B, a minimum clearance of 25 mm sha
40、ll be maintained. Within both volumes, a minimum angle of 30 shall be maintained where parts shear against each other. The hand and foot reach for tractors equipped with a cabin is limited to those portions of the volumes specified, lying within the cab. These requirements do not apply to any points
41、 behind a plane located at an angle of 45 to the rear and running transverse to the travel direction through a point located 230 mm behind the SIP (see Figure 1). BS ISO 26322-2:2010ISO 26322-2:2010(E) 4 ISO 2010 All rights reservedDimensions in millimetres Key 1 SIP 2 volume A 3 volume B Figure 1 O
42、perators hand reach 4.4.3 Operators seat A seat shall be provided which will adequately support the operator in all working and operating modes. Information on the seat adjustment shall be provided in the operators manual. Additionally, two-point seat belts (lap belts) in accordance with ISO 3776-1,
43、 ISO 3776-2 and ISO 3776-3 shall be provided on narrow-track tractors. 4.4.4 Instructional seat An instructional seat, if installed, shall be in accordance with ISO 23205. The exception to this is the case of small tractors without ROPS (roll-over protective structures), for which ISO 23205:2006, 4.
44、7, does not apply. 4.4.5 Cab material burning rate For the cab material burning rate, the provisions of ISO 26322-1:2008, 4.4.5, apply. 4.5 Power take-off (PTO) Rear-mounted PTOs shall be in accordance with ISO 500-1 or ISO 500-2, as declared by the manufacturer. Front-mounted PTOs shall be in accor
45、dance with ISO 8759-1. Additionally, any components of the tractor that transmit power to the PTO, that are not addressed in ISO 500-1, ISO 500-2 or ISO 8759-1, shall be guarded by location (see ISO 26322-1:2008, 4.1.2), safety distances or with guard(s). BS ISO 26322-2:2010ISO 26322-2:2010(E) ISO 2
46、010 All rights reserved 54.6 Strength requirements for guards and barriers For the strength of guards and barriers, the provisions of ISO 26322-1:2008, 4.6, apply. 4.7 Electrical equipment For electrical equipment, the provisions of ISO 26322-1:2008, 4.7, apply. 4.8 Hydraulic components and fittings
47、 For hydraulic components and fittings, the provisions of ISO 26322-1:2008, 4.8, apply. 4.9 Ballast weights For ballast weights, the provisions of ISO 26322-1:2008, 4.9, apply. 4.10 Levelling adjustments Rear and front linkages For levelling adjustments of rear and front linkages, the provisions of
48、ISO 26322-1:2008, 4.10, apply. 4.11 Fuel systems For the fuel system, the provisions of ISO 26322-1:2008, 4.11, apply. 4.12 Roll-over protection 4.12.1 A roll-over protection system meeting the requirements of either ISO 12003-1 or ISO 12003-2 shall be installed on each tractor having an unladen mas
49、s greater than 600 kg. 4.12.2 In addition, the provisions of ISO 26322-1, 4.12.2, apply. 4.13 Falling objects protection For falling objects protection, the provisions of ISO 26322-1, 4.13, apply. 4.14 Hot surfaces For hot surfaces, the provisions of ISO 26322-1:2008, 4.14, apply. 4.15 Exhaust gases For exhaust gases, the provisions of ISO 26322-1:2008, 4.15, apply. 5 Information for use 5.1 Operators manual For the operators manual, the provisions of ISO 26322-1:200
