Tractors and machinery for agriculture and forestry. Power take-off (PTO) drive shafts and thier guards. Safety

BS EN 12965:2003+A2:2009 Tractors and machinery for agriculture and forestry. Power take-off (PTO) drive shafts and thier guards. Safety

BS EN 12965 specifies verifiable safety requirements for designing and constructing power take-off

(PTO) drive shafts and their guards. It applies to shafts that link tractors or other self-propelled machinery to the first fixed bearing of recipient machinery. This standard describes methods for the elimination or reduction of risks which need specific requirements.

This standard concerns only the PTO drive shafts and those guards which are mechanically linked to the PTO drive shaft by at least two bearings.

BS EN 12965 also specifies the type of information on safe working practices to be provided by the manufacturer.

This standard does not deal with:

• The guards totally covering, but not mechanically linked to, the PTO drive shaft. As these devices are not at present widely established on the market, they should be dealt with in a future revision of this standard;
• The mechanical characteristics of PTO drive shafts, overrun devices and torque limiters;
• General hazards which are dealt with in EN 1553 (see introduction).
• Environmental aspects have not been considered in this standard.

This document is not applicable to PTO drive shafts and their guards which are manufactured before the date of publication of this document by CEN.

Contents of BS EN 12965:

Foreword

0 Introduction

1 Scope

2 Normative references

3 Terms and definitions

4 Requirements and/or safety measures

4.1 General requirements

4.2 Universal joint

4.3 Wide-angle universal joint

4.4 Guard

4.5 Intervention points

4.6 Restraining system

5 Verification of safety requirements and/or measures

5.1 General

5.2 Test for cone guarding the universal joints

6 Information for use

6.1 Instruction handbook

6.2 Marking and warning

Annex A (normative) List of hazards

Annex ZA (informative) #Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC, amended by Directive 98/79/EC$

Annex ZB (informative) #Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC$

Bibliography