AS 2955.9-1988

1 - AS 2955.9-1988 / ISO7464-1983 EARTH-MOVING MACHINERY - TESTS AND MEASUREMENTS - MEASUREMENT OF DRAWBAR PULL
4 - CONTENTS
4 - FOREWORD
5 - 1 Scope
5 - 2 Field of application
5 - 3 Definitions
5 - 3.1 drawbar/ hitch point:
5 - 3.2 drawbar pull:
5 - 3.3 drawbar power:
5 - 3.4 travel speed:
5 - 3.5 rated engine speed:
5 - 3.6 fast idle engine speed:
5 - 3.7 test time:
5 - 3.8 test distance:
5 - 3.9 wheel or track slip:
5 - 3.10 dynamometer car:
5 - 3.11 machine mass:
5 - 3.12 tyre pressure:
5 - 3.13 drive wheel revolutions:
5 - 3.14 ambient air temperature/relative humidity:
5 - 3.15 barometric pressure:
5 - 4 Test si te
5 - 4.1 Recommended minimum length
6 - 4.2 Grade
6 - 4.3 Surface
6 - 5 Apparatus
6 - 5.1 Dynamometer car,
6 - 5.2 Means to measure and record the following:
6 - 6 Preparation for test
7 - 7 Procedure
8 - 8 Test results

Specifies test method to measure drawbar pull performance of self-propelled earth-moving machinery and its combination with mounted or trail equipment. Covers the following criteria measured against travel speed: drawbar pull, drawbar power, and wheel or track slip. Applies to all types of self-propelled earth-moving machines except excavators.

This International Standard specifies a test method to measure the drawbar pull performance of self-propelled earth-moving machinery and their combination with mounted or trailed equipment, with or without payload.It covers the following criteria measured against travel speed: drawbar pull, drawbar power, and wheel or track slip.Field of applicationThis International Standard applies to all types of self-propelled earth-moving machines except excavators.