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ISO 500-1-2014 pdf free download
ISO 500-1-2014 pdf free download.Agricultural tractors Rear-mounted power take-off types 1, 2, 3 and 4
Part 1:General specifications, safety requirements, dimensions for master shield and clearance zone
Tracteurs agricoles — Prises deforce montées a I’arrière des types 1, 2,3et4— Partie 1: Spécificationsgénérales, exigences de sécurité, dimensions du bouclier protecteur et de la zone de dégagement.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 5673-2, Agricultural tractors and machinery — Power take-off drive shafts and power-input connection — Part 2: Specification for use of PrO drive shafts, and position and clearance of PTO drive line and PlC for various attachments
Iso 6489 (all parts), Agricultural vehicles — Mechanical connections between towed and towing vehicles
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
external shaft on the rear of the tractor to provide rotational power to implements
4.1 The tractor rear power take-off (PTO) is classified into four types (see Table 1).
4.2 The direction of PTO rotation shall be clockwise when viewed from behind the tractor except when a ground-driven PTO is operated with the tractor in reverse direction.
4.3 The nominal PTO rated rotational frequency can be realized by one or more engine speed ranges.
5 PTO-speed requirements for shiftable PTO
5.1 Should more than one ratio between the engine speed and the PTO rotation speed be provided, any change of ratio shall be indicated. In addition, specific design measures shall be taken to ensure that unintentional changes of ratio, particularly in changing to a higher rotational speed, cannot occur. This safety device shall operate each time the PTO is engaged.
5.2 A means to indicate when the PTO is operating at which nominal speed shall be provided.
6 Safety requirements
6.1 The PTO master shield, as shown in Figure 1 and Table 2. shall be supplied by the tractor manufacturer and shall be fixed to the tractor. lithe same degree of safety protection is reached and the clearance zone is respected, equivalent protection devices (e.g. towing hook or clevis supports) can be used instead of the master shield. In this case, provisions shall be made for anchoring the restraining member of the PTO drive shaft guard.
6.2 If necessary, the PTO master shield or a part of the shield can be movable without detachment from the tractor to facilitate attachment of the PTO drive shaft. The movable portion of the master shield shall be resistant to unintentional movement when in the operating position. The master shield can be made of flexible material.
6.3 lithe PTO master shield can be used as a step, It shall withstand a vertical static load of 1 200 N without permanent deformation.
6.4 An additional non-rotating casing which fully covers the PTO can also be supplied with the tractor to cover the PTO when the PTO is not in use.
7 Dimensions for tractor master shield aperture and clearance zone of PTO
The dimensions of the tractor master shield aperture and the clearance zone around the PTO shall be in accordance with Figure 1. and Table 2.ISO 500-1-2014 pdf free download.
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