Revised Standard from Last Update.

NATIONAL FOREWORD

This Indian Standard which is identical with ISO 12117 (Part 2) : 2008 ‘Earth - moving machinery - laboratory tests and performance requirements for protective structures of excavators - Part 2: Roll - over protective structures (ROPS) for excavators of over 6 T’ was adopted by the Bureau of Indian Standards on the recommendation of the Material Handling Systems and Equipment Sectional Committee and approval of the Mechanical Engineering Division Council.

ISO 12117 consists of the following parts, under the general title Earth - moving machinery - Laboratory tests and performance requirements for protective structures of excavators:

Part 1 Tip over protective structures (TOPS) for compact excavators

Part 2 Roll - over protective structures (ROPS) for excavators of over 6 t

This part of ISO 12117 provides a test method for roll - over protective structures (ROPS) for hydraulic excavators of over 6 t used in earth - moving. Unlike the machines covered by ISO 3471, hydraulic excavators feature large attachments which affect the required performance capability of the ROPS. Therefore, the test method and criteria required for hydraulic excavators are different from those needed for the other earth - moving machines.

The text of ISO Standard has been approved as suitable for publication as an Indian Standard without deviations. Certain conventions are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following:

a) Wherever the words ‘International Standard’ appear referring to this standard, they should be read as ‘Indian Standard’.

b) Comma (,) has been used as a decimal marker while in Indian Standards the current practice is to use a point (.) as the decimal marker.