ISO 3450:2011 specifies minimum performance requirements and test procedures for the service, secondary and parking brake systems of wheeled and high-speed rubber-tracked earth-moving machines, for the uniform assessment of those brake systems. It is applicable to the following earth-moving machinery, operating on work sites or in mining, or travelling on public roads: self-propelled, rubber-tyred earth-moving machines, as defined in ISO 6165; self-propelled rollers and landfill compactors, as defined in ISO 6165 and ISO 8811; self-propelled scrapers, as defined in ISO 7133; remote-control machines, as defined in ISO 6165, wheeled or rubber-tracked; derivative earth-moving machines with rubber tyres; earth-moving machines with rubber tracks and a maximum machine speed greater than or equal to 20 km/h. It is not applicable to pedestrian-controlled earth-moving machinery (see ISO 17063) or crawler earth-moving machines with steel or rubber tracks that travel at less than 20 km/h (see ISO 10265). While purpose-built underground mining machines are not within the scope of ISO 3450:2011, its provisions can generally be applied to those machines with some braking performance modifications and additions, given in an annex.
Tämän julkaisun valmistelusta Suomessa vastaa Metalliteollisuuden Standardisointiyhdistys ry, puh. 09 19 231 (vaihde).
Sisällysluettelo
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements
4.1 Required brake systems
4.2 Common components
4.3 Brake control systems
4.4 Service brake systems
4.5 Secondary brake systems
4.6 Parking brake systems
4.7 Hydrostatic brake systems
4.8 Systems with combined brake and steer function
4.9 Performance and warning devices for stored energy sources
4.10 Braking systems with electronic MCS
4.11 Machines designed to tow trailers
4.12 Machine instructions and labels
4.13 Estimating brake slope capability
5 Test conditions
5.1 Overall test parameters
5.2 General test conditions
5.3 Test course
5.4 Machine test configuration
6 Performance tests
6.1 General
6.2 Braking system controls
6.3 Stored energy sources
6.4 Holding performance
6.5 Stopping performance
6.6 Alternative testing
7 Test report
Annex A Braking for purpose-built underground mining machines (informative)
Annex B Brake slope capability calculation method (informative)
ISO 10968:2004 Earth-moving machinery -- Operator's controls
ISO 15998:2008 Earth-moving machinery -- Machine-control systems (MCS) using electronic components -- Performance criteria and tests for functional safety
ISO 6014:1986 Earth-moving machinery -- Determination of ground speed
ISO 10968:2004 Earth-moving machinery -- Operator's controls
ISO 15998:2008 Earth-moving machinery -- Machine-control systems (MCS) using electronic components -- Performance criteria and tests for functional safety
ISO 6014:1986 Earth-moving machinery -- Determination of ground speed
ISO 6016:2008 Earth-moving machinery -- Methods of measuring the masses of whole machines, their equipment and components
ISO 6165:2006 Earth-moving machinery -- Basic types -- Identification and terms and definitions
ISO 7133:1994 Earth-moving machinery -- Tractor-scrapers -- Terminology and commercial specifications
ISO 8811:2000 Earth-moving machinery -- Rollers and compactors -- Terminology and commercial specifications
ISO 9248:1992 Earth-moving machinery -- Units for dimensions, performance and capacities, and their measurement accuracies