This document specifies the characteristics of the hydraulic pressure from agricultural tractors to connect hydraulic devices on implements, to permit interchangeable use of various types of implements using remote cylinders and other hydraulic devices. It applies to agricultural tractors intended for interchangeable implements.

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This document specifies the essential interface dimensions and the operating requirements for hydraulic couplers employed to transmit hydraulic power from agricultural tractors to agricultural machinery. It is applicable to couplers used in hydraulic lines other than those used for braking circuits. NOTE All hydraulic couplers are intended to be connected and disconnected frequently to allow the transfer of machinery from one tractor to another without the use of tools or special devices.

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This document specifies the dimensional requirements and location for category 0, 1, 2, 3, 4 and 5 drawbars mounted on the rear of agricultural tractors.

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This document provides a list of the recommended mechanical connection combination standards for towing and towed agricultural vehicles.

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This document defines hydraulic power beyond. It specifies the number, type, capacity, and identification of the connections between agricultural and forestry tractors and implements.

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This document specifies the dimensional requirements and location for a ball coupling device of 80 mm nominal diameter, whose male part is fitted to an agricultural towing vehicle and female part is fitted to a towed, non-balanced vehicle which provides mechanical connection between the two vehicles. It defines vertical loading for different positions. This document specifies a ball coupling device with either a horizontal adjustable version, or a close position version.

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This document gives general specification and location requirements for front-mounted power take-offs (PTO) on agricultural tractors. NOTE 1 Further specifications for front-mounted power take-offs are given in ISO 8759-1. It is not applicable to tractors which are designed to run in two directions, where either end can be considered to be the front or the rear. NOTE 2 In this case, ISO 500 (all parts) apply.

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This document specifies dimensions and requirements for three-point linkage in association with a power lift for the attachment of implements or equipment to the front of agricultural tractors. It is not applicable to tractors which are designed to run in two directions, where either end can be considered to be the front or the rear. NOTE In this case, ISO 730 applies.

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This document specifies safety requirements for, and clearance zones around, front-mounted power take-offs (PTO) on agricultural tractors. NOTE 1 Further specifications for front-mounted power take-offs are given in ISO 8759-3. It is not applicable to tractors which are designed to run in two directions, where either end can be considered to be the front or the rear. NOTE 2 In this case, ISO 500 (all parts) apply.

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ISO 20383:2017 specifies the dimensions, characteristics, and positioning of Speed Identification Signs (SIS). These signs indicate the maximum equipment ground speed, based on the ground speed design capability, for an agricultural vehicle. A rear-facing SIS is visible to other operators on public roads approaching the equipment from behind. A forward-facing SIS, mounted on the front of towed equipment, alerts operators of the towing vehicle of the maximum specified ground speed capabilities at which the equipment combination can be operated. ISO 20383:2017 is applicable to self-propelled, semi-integral and towed equipment moving on public roads.

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ISO 11001-1:2016 specifies the essential dimensions for the attachment of three-point hitch implements to agricultural wheeled and track-laying tractors equipped with a three-point free link hitch according to ISO 730 or ISO 8759‑1 and a U-frame hitch coupler. NOTE In general the dimensions associated with the tractor and implement for use with hitch couplers are the same as those for the three-point linkage specified in ISO 730 or ISO 8759‑1, and those for the clearance zone specified in ISO 2332. The three-point hitch coupler systems constitute a special method of implement mounting. The hitch couplers are an additional component located between the three-point linkage and the implement, making it possible to hitch and unhitch from the operator's seat. Due to the special construction and function of hitch couplers, it can be necessary to vary the length of the upper and lower links indicated in the referenced standards. ISO 11001-1:2016 applies to categories 1, 2N, 2, 3N, 3, 4N, and 4 of agricultural wheeled and track-laying tractors as defined in ISO 730 or ISO 8759‑1.

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ISO 23205:2014 specifies the minimum design and performance requirements for an instructional seat and restraint designed for limited use by a trainer or trainee or service person inside an enclosed cab of an agricultural tractor. The instructional seat is neither intended for, nor is it designed for use by, children.

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ISO 500-1:2014 gives general specifications, including speeds, safety requirements, the dimensions for master shield, and clearance zones for rear-mounted power take-offs (PTOs) of types 1, 2, 3, and 4 on agricultural tractors with a track setting of more than 1 150 mm (those with track setting width of 1 150 mm or less are covered in ISO 500-2).

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ISO 500-3:2014 specifies the manufacturing requirements for, and the location of, rear-mounted power take-offs (PTOs) of types 1, 2, 3, and 4 on agricultural tractors.

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ISO 5721-2:2014 specifies the requirements, test procedures, and acceptance criteria for the field of vision to the side and the rear of the operator of agricultural tractors.

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ISO 5721-1:2013 specifies the requirements, test procedures and acceptance criteria for the field of vision to the front of the operator of agricultural tractors.

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ISO 5692-3:2011 specifies the requirements for hitch rings used for the attachment of agricultural trailers and implements to the rear of self-propelled agricultural vehicles equipped with a non-swivel clevis coupling as specified in ISO 6489-5.

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ISO 26322-2:2010 specifies 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 provides 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 wheels 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. It is not applicable to vibration or braking.

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ISO 730:2009 specifies the dimensions and requirements of the three-point linkage for the attachment of implements or equipment to the rear of agricultural wheeled tractors.

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ISO 2332:2009 specifies the clearance zone to be maintained around an implement for attachment to the three-point linkage of an agricultural wheeled tractor. It is applicable to the connection of agricultural implements to three-point linkages complying with ISO 730, and also where implement couplers complying with ISO 11001 are used.

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ISO 11001-3:2009 specifies the essential dimensions for the attachment of three-point hitch implements to agricultural wheeled tractors equipped with a three-point linkage according to ISO 730 or ISO 8759-1 and a link coupler.

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ISO 26322-1:2008 specifies general safety requirements and their verification for the design and construction of standard tractors used in agriculture and forestry. These tractors have at least two axles for pneumatic‑tyred wheels, with the smallest track gauge of the rear axle exceeding 1 150 mm, or tracks instead of wheels, with their unballasted tractor mass being greater than 600 kg. In addition, ISO 26322-1:2008 specifies the type of information on safe working practices (including residual risks) to be provided by the manufacturer, as well as technical means for improving the degree of personal safety of the operator and others involved in a tractor's normal operation, maintenance and use. It is not applicable to vibration or braking.

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ISO 21244:2008 specifies dimensional requirements for the hitch rings of agricultural trailers and trailed implements designed to be attached to agricultural tractor drawbars according to ISO 6489-3.

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ISO 10998:2008 specifies performance and safety requirements for both normal and emergency steering modes of agricultural tractors. It is applicable to those tractors having a maximum design speed, measured in accordance with ISO 3965, not exceeding (60 ± 3) km/h. It is not applicable to track-laying tractors equipped with steel tracks having a maximum design speed, measured in accordance with ISO 3965, not exceeding (15 ± 3) km/h.

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ISO 26402:2008 specifies the dimensions and clearance zones at the interface between tractor and trailer for articulated steering devices of semi-mounted trailers used in agriculture. It also specifies the maximum permissible forces at the connection of such articulated steering devices. It is applicable exclusively in conjunction with ISO 24347, specifying a ball-type (mechanical) coupling device of 80 mm nominal diameter. It is not applicable to the verification of the mechanical strength of the interface of the articulated steering device's interface, nor to the mechanical coupling device; this International Standard does not include technical requirements for the articulated steering device itself.

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ISO 4252:2007 specifies the design dimensions of agricultural tractors having a minimum track width exceeding 1 150 mm in respect of the minimum dimensions of their access doorways, the number, location and minimum dimensions of their emergency exits, and their minimum internal clearance dimensions.

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ISO 23206:2005 specifies the dimensions and clearance requirements for the carriages for attachments on agricultural tractors and machines equipped with front loaders and having a maximum load capacity of 30 kN and a maximum unladen tractor weight of 7 500 kg.

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ISO 16154:2005 specifies the characteristics and installation of lighting and marking devices on agricultural and forestry tractors, self-propelled agricultural machines, agricultural trailers and trailed machines when operated on public roads. It is not applicable to purpose-built forestry machines as defined in ISO 6814 or to motor vehicles such as automobiles, buses, trucks and their trailers.

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ISO 5673-1:2005 specifies the power take-off (PTO) drive shafts of a tractor or self-propelled machine used in agriculture and the power-input connection (PIC) of its implement, establishing a method for determining PTO static and dynamic torsional strength while giving manufacturing and safety requirements. It is applicable only to those PTO drive shafts and guards mechanically linked to the shaft by at least two bearings. It is not applicable to PTO drive shafts guarded by location or to the mechanical characteristics of overrun devices and torque limiters, nor are environmental aspects considered; neither is it applicable to PTO drive shafts and their guards manufactured before the date of its publication.

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ISO 5673-2:2005 gives the forms and applications of (PTO) drive shafts for tractors and self-propelled machines used in agriculture, and specifies the dimensions for, and clearance zone around, the implement power-input connection (PIC) for a variety of attachments. Its intent is to ensure proper clearance between the PTO drive line and adjacent components on the implement and tractor when both implement and tractor have compatible power levels. It is not intended as a complete guide for drive-line design and does not, for example, contain information on preventing drive-line vibration or sizing a torque limiting device. It is not applicable to combinations of implements with tractors having high ground clearance, such as those working in standing vegetable crops or sugar cane, nor to agricultural tractors designed for low ground clearance, such as for lawn mowing or ground care, which require a low centre of gravity; neither is it applicable to implements non-symmetrical in design by necessity due to their function.

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ISO 500-3:2004 specifies the dimensions of the master shield and clearance zones for rear-mounted power take-offs (PTO) of types 1 and 2, only, on narrow-track (track width 1 150 mm or less) agricultural tractors.

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ISO 5692-1:2004 specifies the requirements for the attachment of agricultural non-balanced trailers and implements by means of hitch-rings to the rear of the towing vehicle equipped with either a hook as specified in ISO 6489-1, or a piton-type coupling as specified in ISO 6489-4. Its purpose is to ensure the interchangeability of mechanical connections on agricultural towed vehicles.

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ISO 17612:2004 specifies the essential interface dimensions of a connector and its plug for the transmission of 12 V electrical power within the enclosed operator station of agricultural tractors and machinery. The device is intended to be used as a non-environmentally sealed, convenient source for power auxiliary devices, providing a means for the operator to obtain electrical power without altering the tractor/machine electrical wiring harness. The maximum current capacity of the specified device is 30 A: it is not applicable to any other voltage system (6 V or 24 V).

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ISO 6489-4:2004 specifies the dimensional requirements for the piton-type coupling devices used in the attachment to agricultural towing vehicles of towed, non-balanced trailers and implements equipped with a coupling ring specified in ISO 5692-1. Its purpose is to ensure the interchangeability of the mechanical connections on agricultural towing vehicles. It is applicable only in those cases where the vertical static load does not exceed 30 kN.

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This part of ISO 6489 gives specifications for the clevis couplings used in the attachment to agricultural towing vehicles of towed, non-balanced trailers and implements equipped with a coupling ring 40 specified in ISO 5692-2 and ISO 8755. The mounting of one of the three trailer coupling shapes, A, B or C, on an agricultural vehicle or trailer is at the manufacturer's or user's discretion. The full interchangeability of the three shapes is provided for.

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This International Standard specifies a method for determining the payloads, vertical static drawbar loads and axle loads of agricultural semi-mounted and balanced trailers by means of weighing the empty trailer and then calculating the requirements.

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This part of ISO 5692 specifies the requirements for vehicle coupling rings with a ring inside diameter of for coupling with the drawbar coupling specified in ISO 6489-2, and for ensuring vehicle coupling with the necessary horizontal and vertical rotation angle. This part of ISO 5692 is applicable to couplings where the vertical static load is not more than and the dynamic horizontal load is not more than the value of . NOTE For value , see ISO 6489-2.

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This International Standard specifies dimensional requirements for the attachment of agricultural, non-balanced trailers and implements by means of hitch rings to the rear of towing vehicles equipped with a hook specified in ISO 6489-1. Its purpose is to ensure the interchangeability of the mechanical connections on agricultural towed vehicles. This International Standard is applicable to rings whose coupling point is below the centre-line of the rear axle and the power take-off (PTO) of the tractor. NOTE Other International Standards are to be developed for rings above the PTO coupling.

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This part of ISO 6489 specifies the dimensional requirements for hitch-hooks used in the attachment to agricultural towing vehicles of towed, non-balanced trailers and implements equipped with a ring specified in ISO 20019. Its purpose is to ensure the interchangeability of the mechanical connections on agricultural towing vehicles. This part of ISO 6489-1 is applicable only in those cases where the vertical static load does not exceed 30 kN.

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This part of ISO 8759 specifies dimensions and requirements of the stationary equipment connection for agricultural wheeled tractors which are equipped with front-mounted power take-off but do not have front three-point linkage. It is applicable to the tractor categories defined in ISO 730-1. NOTE — ISO 8759-1 specifies requirements for the power take-off and the front three-point linkage.

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Specifies the dimensional requirements for attaching wheels to hubs on tractors and machinery for agriculture and forestry. Specifications indicated do not imply that the wheel is interchangeable from one vehicle to another.

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Specifies the coding to be used to identify the couplings and controls for the remote hydraulic power services of agricultural tractors, machinery and implements.

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Specifies the essential dimensions for the attachment of three-point hitch implements to the rear of agricultural wheeled tractors equipped with a three-point free link hitch according to ISO 730-1 and a bar coupler. Applies to categories 2 and 3 of agricultural wheeled tractors as defined in ISO 730-1.

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Specifies the essential dimensions for the attachment of three-point hitch implements to agricultural wheeled tractors equipped with a three-point free link hitch according to ISO 730-1 or ISO 8759-2, and an A-frame hitch coupler. The three-point hitch coupler systems constitute a special method of implement mounting. The hitch couplers are an additional component located between the three-point linkage and the implement making it possible to hitch and unhitch from the operator's seat. Applies to category 2 of agricultural wheeled tractors as defined in ISO 730-1.

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Lays down dimensions for the operator's seat and the location of specific controls relative to the seat index point within the seating accommodation on agricultural tractors with a track width greater than 1150 mm. The controls included are the steering-wheel, clutch pedal, brake pedal(s), and throttle pedal. Standardized dimensions and locations will assist the future design of operator's seating accommodation on agricultural tractors.

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Specifies the dimensions and certain requirements (material, anti-corrosive treatment, pre-stress of the spring-retaining device) for linch pins and spring pins which are used for the three-point hitch and for numerous fastening purposes in farm work and agricultural equipment.

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Specifies requirements to allow mounting of additional controls and instrumentation used for remote operation of supplementary machinery and equipment on tractors, and provision of an electrical power-point adjacent to the mounting; it also lays down requirements for an apeture through which the control cable or hose enters the tractor cab. Some figures illustrate the meaning of the description.

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