BS 5947:1992

Committees responsible
National foreword
Method
Introduction
1 Scope
2 Normative references
3 Definitions
4 Symbols
5 Apparatus
6 Preparation of tractor and protective structure
7 Procedure
8 Seat index point
9 Clearance zone
10 Tolerances
11 Acceptance conditions
12 Extension to other tractor models
13 Labelling
14 Test report
Appendices
A Requirements for providing resistance to brittle
     fracture or protective structure at reduced
     operating temperature
B Test report for protective structure
C Data sheet for protective structure
Table
A.1 Minimum Charpy V-notch impact energy requirements
     for protective structure material at a specimen
     temperature of - 30 deg C
Figures
1a Static load force - deflection diagram - Overload
     test not necessary
1b Static load force - deflection diagram - Overload
     test
1c Static load force - deflection diagram - Continuing
     overload test
2 Front and rear load application
3 Side load application
4 Example of arrangement for crushing test
5 Clearance zone
6a Clearance zone from side
6b Clearance zone from front or rear 65 mm behind the
     seat index point

Covers tractors not less than 800 kg, generally not more than 15,000 kg with minimum rear track width generally greater than 1150 mm.