Standard
Track updates
AS 1636.1-1996
[Current]Tractors — Roll-over protective structures — Criteria and tests, Part 1: Conventional tractors
Specifies the test procedures and minimum performance criteria for evaluating roll-over protective structures fitted to tractors having a rear track width generally greater than 1150 mm. It applies to driver-controlled tractors, but does not cover earth-moving equipment. It includes test procedures for both static and dynamic testing. A theoretical analysis of roll-over protective structures, which would provide equivalent performance to physical testing, is included.
Published: 05/01/1996
Pages: 35
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
PREFACE
1 SCOPE AND GENERAL
1.1 SCOPE
1.2 OBJECTIVE
1.3 APPLICATION
1.4 REFERENCED DOCUMENTS
1.5 DEFINITIONS
1.6 EQUIVALENCE
1.7 ALTERNATIVE TO PHYSICAL TESTING
1.8 GENERAL REQUIREMENTS
1.8.1 ROPS previously tested on different tractor models
1.8.2 Measurement tolerances
1.8.3 Tractor mass
1.8.3.1 Basic tractor mass
1.8.3.2 Reference tractor mass
1.8.4 Seat index point
1.8.5 Zone of clearance
1.8.6 Repairs to ROPS
1.9 MARKING
1.10 ADDITIONAL MARKING
2 DYNAMIC TESTING
2.1 SCOPE OF SECTION
2.2 CONDITIONS FOR ACCEPTANCE
2.3 SELECTION AND PREPARATION FOR TEST OF ‘ROPS’ AND TRACTOR
2.4 APPARATUS AND EQUIPMENT
2.4.1 Measurement of clearance zone
2.4.2 Impact tests
2.4.2.1 Pendulum weight
2.4.2.2 Lashings
2.4.2.3 Wheel prop and beam
2.4.2.4 Measuring apparatus
2.4.3 Crushing tests
2.5 TESTS FOR ESTABLISHING STRENGTH OF CAB OR FRAME AND ATTACHMENT TO TRACTOR
2.5.1 Test procedure
2.5.1.1 Sequence of tests
2.5.1.2 Track width
2.5.1.3 Cab fittings and cladding
2.5.1.4 Direction of impact blows
2.5.1.5 Tyre pressures and deflections
2.5.2 Impact and crushing tests
2.5.2.1 Impact at the rear
2.5.2.2 Impact at the front
2.5.2.3 Impact at the side
2.5.2.4 Crushing at the rear
2.5.2.5 Crushing at the front
2.5.3 Measurements to be made
2.5.3.1 Fractures and cracks
2.5.3.2 Zone of clearance
2.5.3.3 Maximum momentary deflection
2.5.3.4 Permanent deflection
2.6 REPORT AND SPECIFICATION
3 STATIC TESTING
3.1 SCOPE OF SECTION
3.2 CONDITIONS FOR ACCEPTANCE
3.3 SELECTION AND PREPARATION OF ROPS AND TRACTOR
3.4 APPARATUS AND EQUIPMENT
3.4.1 Horizontal loading tests
3.4.1.1 Fixing
3.4.1.2 Loading device
3.4.1.3 Measuring apparatus
3.4.2 Crushing tests
3.5 TESTS FOR ESTABLISHING STRENGTH OF CAB OR FRAME AND ATTACHMENT TO TRACTOR
3.5.1 Test procedure
3.5.2 Horizontal loading from the rear, front and side
3.5.2.1 General provisions for horizontal loading tests
3.5.2.2 Longitudinal loading
3.5.2.3 Loading from the side
3.5.3 Crushing tests
3.5.3.1 Crushing at the rear
3.5.3.2 Crushing at the front
3.5.4 Second longitudinal loading
3.6 REPORT AND SPECIFICATION
APPENDIX A
APPENDIX B
APPENDIX C
Cited references in this standard
SAE J1040
Performance criteria for roll-over protective structures (ROPS) for construction, earthmoving, forestry and mining machines.
SAE J1194
Roll-over protective structures for wheeled agricultural tractors.
SAE J386
Operator restraint system for off-road work machines.
[Current]
Tractors for agriculture and forestry — Roll-over protective structures — Static test method and acceptance conditions
ISO 3471.1
Earth-moving machinery—Roll-over protective structures—Laboratory tests and performance requirements, Part 1: Crawler, wheel loaders and tractors, backhoe loaders, graders, tractor scrapers, articulated steer loaders
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