ISO 789-6:2019

Agricultural tractors — Test procedures — Part 6: Centre of gravity

This document specifies a method of determining the position of the centre of gravity of agricultural tractors. The method is applicable to agricultural tractors having at least two axles fitted with wheels or tracks.

Tracteurs agricoles — Méthodes d'essai — Partie 6: Centre de gravité

General Information

• Status: Published
• Publication Date: 04-Feb-2019
• ICS: 65.060.10 - Agricultural tractors and trailed vehicles
• Technical Committee: ISO/TC 23/SC 2 - Common tests
• Drafting Committee: ISO/TC 23/SC 2/WG 6 - Test procedures for agricultural tractors
• Current Stage: 9020 - International Standard under periodical review
• Start Date: 15-Jan-2024
• Completion Date: 15-Jan-2024

Relations

• Revises: ISO 789-6:1982/Amd 1:1996 - Agricultural tractors — Test procedures — Part 6: Centre of gravity — Amendment 1
• Effective Date: 30-Apr-2016
• Revises: ISO 789-6:1982 - Agricultural tractors — Test procedures — Part 6: Centre of gravity
• Effective Date: 30-Apr-2016

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 789-6
Second edition
2019-02
Agricultural tractors — Test
procedures —
Part 6:
Centre of gravity
Tracteurs agricoles — Méthodes d'essai —
Partie 6: Centre de gravité
Reference number
ISO 789-6:2019(E)
©
ISO 2019

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ISO 789-6:2019(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2019
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ii © ISO 2019 – All rights reserved

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ISO 789-6:2019(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Apparatus . 2
5 General requirements . 2
6 Procedure. 3
6.1 General principle . 3
6.2 Determination of horizontal fore-and-aft coordinate ( x ) . 3
6.2.1 Tracked tractors [see Figure 1 a)] . 3
6.2.2 Wheeled tractors [see Figure 1 b)] . 3
6.3 Determination of vertical coordinate ( h ) (see Figure 2) . 3
6.4 Determination of lateral coordinate in the horizontal plane ( y ) (see Figure 3) . 4
7 Test report .22
Annex A (informative) Example calculation: Height of centre of gravity, h (Table 2) .23
Bibliography .26
© ISO 2019 – All rights reserved iii

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ISO 789-6:2019(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-g
...