Agricultural tractors — Test procedures — Part 2: Rear three-point linkage lifting capacity

Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English

Published date

02-22-2018

Publisher

International Organization for Standardization

ISO 789-2:2018 specifies test procedures for determining the lifting capacity of rear-mounted three-point linkage systems:

a) the maximum vertical force which can be exerted by the hydraulic lift at the lower hitch points throughout their full range of movement;

b) the maximum vertical force which can be exerted by the hydraulic lift, at a point 610 mm to the rear of the hitch points on a frame attached to the three-point linkage, throughout its full range of movement.

NOTE 1 A static test provides an adequate comparison between tractors. The test results are used only as a means of comparing tractors and not as a way of recommending the size of an implement which can be carried by the tractor.

NOTE 2 This test procedure can be used to determine the lifting capacity of front-mounted three-point hitch systems.

Committee	ISO/TC 23/SC 2
DevelopmentNote	Supersedes ISO/DIS 789-2. (02/2018)
DocumentType	Standard
Pages	7
PublisherName	International Organization for Standardization
Status	Current
Supersedes	ISO 789-2:1993

ISO 730:2009	Agricultural wheeled tractors — Rear-mounted three-point linkage — Categories 1N, 1, 2N, 2, 3N, 3, 4N and 4
ISO 3448:1992	Industrial liquid lubricants — ISO viscosity classification