ISO 8759-1:2018

Name: ISO 8759-1:2018 — Agricultural tractors — Front-mounted equipment — Part 1: Power take-off: Safety requirements and clearance zone around PTO
SKU: ISO 8759-1:2018
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Agricultural tractors — Front-mounted equipment — Part 1: Power take-off: Safety requirements and clearance zone around PTO

Название (английский):

ISO 8759-1:2018

Agricultural tractors — Front-mounted equipment — Part 1: Power take-off: Safety requirements and clearance zone around PTO

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 9
Дата публикации:: 15 ноября 2018 г.
Издание:: ISO IS 8759 edition 3 version 1
ICS:: 65.060.10

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Описание (английский):

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.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 8759-1:2018 is an international standard issued by the International Organization for Standardization (ISO) that addresses safety requirements and clearance zones for front-mounted power take-offs (PTOs) on agricultural tractors. This standard plays a critical role in defining protective measures that reduce risk of injury and ensure operational safety around the PTO, which is a pivotal component for powering front-mounted agricultural equipment.

Focused specifically on front-mounted PTOs, ISO 8759-1:2018 excludes tractors designed for bidirectional operation (where either end can be front or rear), which are governed by the ISO 500 series. The standard reinforces safe tractor design, mandatory clearance dimensions, and protective shielding requirements, thereby helping manufacturers comply with internationally recognized safety practices.

Key Topics

Safety Requirements The standard mandates the provision of a PTO master shield supplied and fixed by the tractor manufacturer. This shield must cover the PTO while in operation, minimizing risk of contact with moving parts. Alternative safety devices like towing frames or front three-point hitches are permitted if they provide equivalent protection and respect established clearance zones.

Clearance Zone Specifications ISO 8759-1 defines precise dimensional requirements for the clearance zone surrounding the PTO. Diagrams and tables provide measurements such as aperture sizes, angular clearances, and minimum clearances-ensuring that sufficient space is maintained to avoid hazardous proximity to rotating PTO components during operation or maintenance.

PTO Master Shield Design The standard addresses material and design flexibility, allowing the PTO master shield to be flexible if it is not used as a step. Provisions for anchoring the restraining member of the PTO drive shaft guard are specified, and options for a fully enclosed master shield or additional non-rotating casings when the PTO is not in use are included.

Applicability and Scope The document explicitly excludes tractors designed for reversible operation (covered by ISO 500), and refers users seeking further PTO design specifications to ISO 8759-3. Additionally, it details conditions where lower linkages may interfere with clearance zones, especially when in raised or parked positions.

Applications

ISO 8759-1:2018 is essential for:

Agricultural Tractor Manufacturers Ensuring tractor design meets internationally accepted safety criteria for front-mounted PTOs, thereby reducing liability and enhancing operator protection.

Equipment Designers and Engineers Developing front-mounted attachments that interface safely with tractor PTOs, using clearances and shield dimensions to influence product design.

Safety Inspectors and Regulatory Authorities Verifying compliance with safety standards in agricultural machinery to prevent accidents linked to PTO entanglement or crushing hazards.

Farm Operators and Maintenance Teams Understanding the safety measures and clearance zones that must be respected during equipment attachment, adjustment, and routine maintenance on tractors.

Related Standards

ISO 8759-3: Provides further specifications for front-mounted power take-offs, expanding on technical and design aspects beyond safety and clearance zones.

ISO 500 (all parts): Governs rear-mounted power take-off types 1 through 4 and applies to tractors designed to operate bi-directionally.

ISO 5673-2:2005: Specifies requirements for PTO drive shafts and positional clearances related to power take-off driveline components and power-input connections.

By adhering to ISO 8759-1:2018, the agricultural machinery industry promotes safer operational environments, ensures compatibility of front-mounted PTO-driven attachments, and minimizes risks associated with rotating power transmission components. This standard is a critical reference for maintaining front-mounted PTO safety, protective shielding, and minimum clearance zones in line with international best practices.

ISO 8759-1:2018

Abstract

Похожие стандарты

Overview

Key Topics

Applications

Related Standards

Технические детали

ISO 5673-2:2005

Agricultural tractors and machinery — Power take-off drive shafts and power-input connection — Part 2: Specif…

ISO 50003:2014

Energy management systems — Requirements for bodies providing audit and certification of energy management sy…

ISO 8759-3:2018

Agricultural tractors — Front-mounted equipment — Part 3: Power take-off: General specifications and location