ISO 8643:2024

ISO 8643:2024

May 2024
International standard Current

Earth-moving machinery - Hydraulic excavator and backhoe loader lowering control device - Requirements and tests

This document establishes uniform requirements and test procedures for lowering control devices fitted on the boom, intermediate boom and arm cylinders of hydraulic excavators and backhoe loaders to control the rate of drop in the case of a hydraulic line failure or rupture.It is applicable to the lowering control devices of hydraulic excavators and the backhoe equipment of backhoe loaders used for object handling which are equipped with the standard linkage as defined by the manufacturer. On machines where alternative linkage combinations are offered, only the standard length defined by the manufacturer is subject to testing.

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Main informations

Collections

International ISO standards

Publication date

May 2024

Number of pages

11 p.

Reference

ISO 8643:2024

ICS Codes

53.100   Earth-moving machinery

Print number

1
Sumary
Earth-moving machinery - Hydraulic excavator and backhoe loader lowering control device - Requirements and tests

This document establishes uniform requirements and test procedures for lowering control devices fitted on the boom, intermediate boom and arm cylinders of hydraulic excavators and backhoe loaders to control the rate of drop in the case of a hydraulic line failure or rupture.

It is applicable to the lowering control devices of hydraulic excavators and the backhoe equipment of backhoe loaders used for object handling which are equipped with the standard linkage as defined by the manufacturer. On machines where alternative linkage combinations are offered, only the standard length defined by the manufacturer is subject to testing.

Replaced standards (1)
ISO 8643:2017
February 2017
International standard Cancelled
Earth-moving machinery - Hydraulic excavator and backhoe loader lowering control device - Requirements and tests

ISO 8643:2017 establishes uniform requirements and test procedures for lowering control devices fitted on the boom, intermediate boom and arm cylinders of hydraulic excavators and backhoe loaders to control the rate of drop in the case of a hydraulic line failure or rupture. It is applicable to the lowering control devices of hydraulic excavators and the backhoe equipment of backhoe loaders used for object handling which are equipped with the standard linkage as defined by the manufacturer. On machines where alternative linkage combinations are offered, only the standard length defined by the manufacturer is subject to testing.

Standard replaced by (1)
ISO 8643:2017
February 2017
International standard Cancelled
Earth-moving machinery - Hydraulic excavator and backhoe loader lowering control device - Requirements and tests

ISO 8643:2017 establishes uniform requirements and test procedures for lowering control devices fitted on the boom, intermediate boom and arm cylinders of hydraulic excavators and backhoe loaders to control the rate of drop in the case of a hydraulic line failure or rupture. It is applicable to the lowering control devices of hydraulic excavators and the backhoe equipment of backhoe loaders used for object handling which are equipped with the standard linkage as defined by the manufacturer. On machines where alternative linkage combinations are offered, only the standard length defined by the manufacturer is subject to testing.

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