scope:

This International Standard specifies a static loading test method and the acceptance conditions for protective structures (cab or frame) of wheeled tractors for agriculture and forestry.

It applies to tractors having at least two axles for pneumatic-tyred wheels, with or without track attachments, and with a tractor mass not less than 800 kg and not more than 15 000 kg.

NOTE - The limit of 15 000 kg on the tractor mass is based on the extent of research to date. Further studies are required to obtain the basic data to be used for a new edition of this International Standard, which will include tractors with a mass of more than 15 000 kg. However, this International Standard may be considered for use for tractors with a tractor mass greater than 15 000 kg until the new edi- tion of this International Standard has been agreed.

The minimum track width of rear wheels should generally be greater than 1 150 mm. It is recognized that there may be designs of tractors, for example, lawn-mowers, narrow vineyard tractors, low profile tractors used in low buildings with limited overhead clearance, orchards, etc., stilt tractors and certain forestry machines such as forwarders, for which this International Standard is not appropriate.