CELEX: 51983PC0269
Language: en
Date: 1983-05-17
Title: PROPOSAL FOR A COUNCIL DIRECTIVE ON THE APPROXIMATION OF THE LAWS OF THE MEMBER STATES RELATING TO THE POWER TAKE-OFFS OF WHEELED AGRICULTURAL AND FORESTRY TRACTORS AND THEIR PROTECTION

23. 6. 83                           Official Journal of the European Communities                              No C 164/5
                                                               II
                                                       (Preparatory Acts)
                                                 COMMISSION
               Proposal for a Council Directive on the approximation of the laws of the Member States
               relating to the power take-offs of wheeled agricultural and forestry tractors and their
                                                           protection
                                 (Submitted by the Commission to the Council on 26 May 1983)
 THE COUNCIL OF THE EUROPEAN                                        sector; whereas the provisions concerning power
 COMMUNITIES,                                                       take-offs and their protection constitute obvious
                                                                    safety factors;
 Having regard to the Treaty establishing the                       Whereas the approximation of national laws relating
 European Economic Community, and in particular                     to wheeled agricultural or forestry tractors involves
Article 100 thereof,                                                the mutual recognition by the Member States of tests
                                                                    conducted by each of them on the basis of common
 Having regard to the proposal from the Commission,                 requirements,
Having regard to the opinion of the                European
 Parliament,                                                        HAS ADOPTED THIS DIRECTIVE:
Having regard to the opinion of the Economic and                                           Article 1
 Social Committee,                                                  1.    Agricultural or forestry tractors means any
                                                                    motor vehicle, fitted with wheels or endless tracks,
Whereas the technical requirements which wheeled                    having at least two axles, the main function of which
agricultural or forestry tractors must satisfy pursuant             lies in its tractive power and which is specially
to existing national legislation relate inter alia to the          designed to tow, push, carry or power certain tools,
power take-off and its protection;                                 machinery or trailers intended for agricultural or
                                                                   forestry use. It may be equipped to carry a load or a
                                                                   crew.
Whereas these requirements differ from one Member
State to another; whereas it is therefore necessary for            2.    This Directive applies exclusively to the tractors
all the Member States to adopt the same                            defined in paragraph 1 above, which are fitted with
requirements, either in addition to or as a substitute             pneumatic tyres and have at least two axles and a
for their existing regulations, in particular in order to          maximum design speed of between six and 30 kilo-
make possible the implementation, in respect of each               metres per hour.
tractor type, of the EEC type-approval procedure
which is the subject of Council                    Directive
                                                                                           Article 2
74/150/EEC of 4 March 1974 on the approximation
of the laws of the Member States relating to the type-             Member States may not refuse to grant EEC or
approval of wheeled agricultural or forestry                       national type-approval in respect of a tractor, or
tractors (');                                                      refuse or prohibit the sale, registration, entry into
                                                                   service or use of a tractor, on grounds relating to the
Whereas the Council resolution of 29 June 1978                     power take-off and its protection if the latter satisfy
concerning an action programme of the European                     the requirements set out in Annex I.
Communities on safety and health at work (2)
provides for the application of the principles of                                          Article 3
accident prevention in the design and creation of
plant and machinery, including the agricultural                    Any amendments necessary for the adaptation to
                                                                   technical progress of the requirements of Annex I and
                                                                   the model annex to the EEC type-approval certificate
                                                                   shown in Annex II shall be adopted pursuant to the
(') OJ L 84, 28. 3. 1974, p. 10.                                   procedure laid down in Article 13 of Directive
O O J N o C 165, 11.7. 1978, p. 3.                                 74/150/EEC.
 ---pagebreak--- No C 164/6                         Official Journal of the European Communities                         23. 6. 83
                      Article 4                            is informed, in sufficient time for it to submit its
                                                           comments, of any draft laws, regulations or
1. Member States shall bring into force the laws,          administrative provisions which they intend to adopt
regulations and administrative provisions necessary to     in the field covered by this Directive.
comply with this Directive not later than 1 October
1984. They shall forthwith inform the Commission
thereof.
                                                                                   Article 5
2. As soon as this Directive has been notified,
Member States shall also ensure that the Commission        This Directive is addressed to the Member States.
 ---pagebreak--- 23. 6. 83                      Official J o u r n a l of the E u r o p e a n Communities                                N o C 164/7
                                                            ANNEX      I
          DEFINITION AND SCOPE, APPLICATION FOR EEC TYPE-APPROVAL, EEC TYPE-
          APPROVAL, TYPES OF POWER TAKE-OFF AND DESIGN AND POSITIONING
            REQUIREMENTS IN RESPECT O F T H E LATTER AND T H E I R PROTECTIVE GUARDS
          1.     DEFINITION AND SCOPE
           1.1.   'Power take-off (PTO) means the splined end of the tractor drive shaft which transmits
                  motion to a machine via a universal-joint drive shaft.
          1.2.   The provisions of this Directive apply exclusively to power take-offs located at the rear of
                 the tractor.
          2.     APPLICATION FOR EEC TYPE-APPROVAL
          2.1.   The application for the type-approval of a tractor type as regards the power take-off and
                 its protection must be submitted by the tractor manufacturer or his authorized rep-
                 resentative.
          2.2    It must be accompanied by:
          2.2.1. drawings, in triplicate, on an appropriate and suitably detailed scale, of those parts of the
                 tractor subject to the requirements of this Directive.
          2.3.   A tractor representative of the type submitted for approval or those part(s) of the tractor
                 considered indispensable for the execution of the tests required by this Directive must be
                 supplied to the technical service responsible for conducting the type-approval tests.
          3.     EEC TYPE-APPROVAL
          3.1.   A certificate conforming to the model which appears in Annex II must be attached to the
                 EEC type-approval certificate.
          4.     TYPES OF POWER TAKE-OFF
          4.1.   The characteristics of PTOs must conform to one of the types described in Table 1 below:
                                                                  TABLE 1
                                                     Characteristics of types of PTO
                               Nominal-
                    Type        diameter                 Number of splines            Nominal PTO rotation speed
                                                                                               (r/min) (')
                                  (mm)
                      1            35                   Six straight splines
                      2            35          21     I                             • 540 and/or 1 000
                                                      {     Involute
                                                      j    Serrations
                      3            45          20 J
                 (') The nominal rotation speed of the three types of PTO must be obtained at not less than 80 % of the
                     rated engine speed.
          4.2.   The rotation speed of the P T O must be maintained by suitable means.
          4.3.   Should more than one ratio between the engine speed and the P T O rotation speed be
                 provided, any change of ratio must be perceptible. In addition, specific design measures
                 must be taken to ensure that unintentional changes of ratio — in particular changing to a
                 higher rotation speed — cannot occur. This safety device must operate each time the P T O
                 is engaged.
          4.4.   Means must be provided by which the P T O rotation speed can be clearly indicated at all
                 times.
 ---pagebreak--- N o C 164/8                             Official J o u r n a l of the E u r o p e a n Communities                          23.6.83
            5.         DESIGN AND POSITIONING REQUIREMENTS
            5.1.       Depending on the type, the dimensions in millimetres of the main PTO of agricultural
                       tractors must correspond to the dimensions shown in Figures 1, 2 and 3 and Tables 2, 3
                       and 4.
                                                               (dimensions in millimetres)
                        A-A
                 Section of shaft
                                                                  Figure 1
                                                               Type 1 PTO
            (')  Spline circle diameter.
            (2)  Hardened area: 48-56 Rockwell C hardness.
            (5)  With or without neck.
            (4)  Sitze of bevel left to manufacturer.
                                                                      TABLE 2
                                                          Type 1 P T O spline tolerances
                                                                                               (dimensions in millimetres)
                                Type 1 PTO                                             Shaft
                                                                                         s
                        Nominal dimension
                                                                                       8,69
                                                                                                  8,60 max.
                                                         Direct measurement
                                                                                                  8,53 min.
                       Verified dimension
                                                         With G O ring gauge                      8,64 max.
 ---pagebreak--- 23.6.83                       Official Journal of the European Communities                          No C 164/9
                                                (dimensions in millimetres)
                 Base section of shaft
                                                                            Section of shaft
                 Angle of pressure a = 30°; number of teeth z = 2 1 ; modulus m = 1,5875 (diametral
                 pitch 16).
                                                        Figure 2
                                                     Type 2 P T O
        (') Hardened area: 48-56 Rockwell C hardness.
        (2) Spline circle diameter.
        (') Only for a system in which the teeth mesh fully.
        (') Size of bevel left to manufacturer.
 ---pagebreak--- N o C 164/10                  Official Journal of the European Communities                                 23.6.83
                                                     TABLE 3
                                           Type 2 PTO spline tolerances
                                                                               (dimensions in millimetres)
                     Type 2 PTO                                     Shaft
                                                                       s
             Nominal dimension
                                                                    2,494
                                                                                2,369 max.
                                             Direct measurements
                                                                                2,306 min.
             Verified dimension
                                          With appropriate G O ring             2,406 max.
                                                    gauge
                                            Distance between outermost points of wire guages, M a
             Nominal dimension
                                                                   31,182
             Tolerances                                              1,473
             Verification figure
                                                3.6^
                                                      I      \?                 39,00 max.
                                                                                38,90 min.
 ---pagebreak--- 23.6.83            Official Journal of the European Communities                        N o C 164/11
                                      (Dimensions in millimetres)
                                                                   Section of shaft
             Base section of shaft
        Angle of pressure a = 30°; number of teeth z = 20; modulus m = 2,1167 (diametral
        pitch 12).
                                                    Figure 3
                                                 Type 3 P T O
        (') Hardened area: 48-56 Rockwell C hardness.
        (2) Spline circle diameter.
        (3) Only for a system in which the teeth mesh fully.
        (4) Size of bevel left to manufacturer.
 ---pagebreak--- N o C 164/12                            Official J o u r n a l of the E u r o p e a n C o m m u n i t i e s                        23.6.83
                                                                    TABLE 4
                                                        Type 3 P T O spline tolerances
                                                                                                       (dimensions in millimetres)
                              Type 3 PTO                                               Shaft
                      Nominal dimension
                                                                                      3,325
                                                                                                        3,200 max.
                                                           Direct measurements
                                                                                                        3,173 min.
                      Verified dimension
                                                      With appropriate G O ring                         3,237 max.
                                                                   gauge
                                                          Distance between outermost points of wire gauges M a
                      Nominal dimension
                                                                                      48,432
                      Tolerance                                                        1,544
                                                                                                       48,239 max.
                      Verification figure                                                              48,142 min.
            5.2.      Direction of rotation of the rear PTO
                      Clockwise when the P T O is observed in the direction of travel of the tractor.
             5.3.     Position of the rear PTO
                      The PTO must be positioned as shown in Figure 4 in relation to the ground.
      r">i
                  ••"\2r"*
   vb/;/////\///;/7////}/7/i                                                                                              Y//////A
                                                                  Figure 4
                                              Position of P T O in relation to the ground
                   If the tractor is fitted with two PTOs, e max. should be so adjusted that one of them is
                   outside the shaft clearance area.
 ---pagebreak--- 23.6.83 Official Journal of the European Communities                                     No C 164/13
                                    TABLE 5
                     Position of PTO in relation to the ground
                                                               (dimensions in millimetres)
        PTO type                         h                          e max.
                                       450
           1                            to                            50
                                       675
                                       550
           2                            to                            50
                                       775
                                       650
           3                            to                            50
                                       875
 ---pagebreak--- No C 164/14                         Official Journal of the European Communities   23.6.83
           5.4.     Zone of clearance around the PTO
                    The PTO zone of clearance must be in conformity with Figure 5.
                                                     (dimensions in millimetres)
                 Section XX
           Vertical cross section
           of the limiting surface
           of the clearance area
           (for guidance)
                                                           Horizontal section
                                                        Median plane of wheel
                                                         PTO shaft
                                                               Vertical section
                                                          Figure 5
                                              Zone of clearance around PTO
 ---pagebreak--- 23.6.83                           Official J o u r n a l of the E u r o p e a n C o m m u n i t i e s              N o C 164/15
            5.5.      Protection of PTOs
             5.5.1.   Protection
             5.5.1.1. The power take-off must be protected by a guard mounted on the tractor which covers at
                      least the top part and the two sides of the P T O as shown in Figure 6 below, or by other
                      means providing a similar degree of protection such as the location of the P T O in a recess
                      that is part of the tractor or is formed by a separate part (tow-hook mounts, coupling
                      cover, etc.)
             5.5.1.2. The dimensions of the protective guard are laid down, as a function of the type of P T O , in
                      Table 6 below;
             5.5.1.3. An additional non-rotating protective device which fully covers the P T O must also be
                      supplied with the tractor to protect the P T O when the latter is not in use.
             5.5.2.   Characteristics of protective guards
             5.5.2.1. The protective guard must be designed so as not to impede (or in order to facilitate) the
                      use and maintenance of the tractor.
                      It must be possible to carry out maintenance operations without removing the protective
                      guard.
             5.5.2.2. The materials used must be able to withstand bad weather, must retain their mechanical
                      properties in cold weather and must be sufficiently sturdy.
             5.5.2.3. It must not be possible to remove the protective guard without the use of a tool; in
                      addition, the protective guard must have no points or sharp edges, must contain no orifices
                      other than that necessary for attaching the chain of the protective device for the universal-
                      joint drive shaft and, if fitted in such a way that it can be used as a step, must be able to
                      bear a weight of 120 daN.
                                                                                                      <—9  M
        Optional shapes
                                                                                                                     016 mm
                                                                                Optional angle
                                                                                                                16,5 mm
                                                               Figure 6
                                            Protective guard for type 1, 2 and 3 PTOs
 ---pagebreak--- N o C 164/16                     Official Journal of the European Communities                                       23.6.83
                                                            TABLE 6
                                     Dimensions of the power take-off protective guard
                                                            Dimensions of protective guard (')
                                                                           (mm)
                      Type
                                            a            b±5              c ±5            d ±5             w
                        1                  70              125               85            285             125
                        2                  70              125               85            285             125
                        3                  80              150              100            300             150
             (') In the case of tractors having two rear P T O shafts, the dimensions b and/or d may be adjusted in
                 order to maintain equivalent clearance areas between the shafts and the protective guard.
 ---pagebreak--- 23.6.83                       Official J o u r n a l of the E u r o p e a n Communities                        N o C 164/17
                                                          ANNEX      II
                                                           MODEL
                                        (Maximum size: DIN A4 (210 x 297 mm))
                                                                                         Name of competent
                                                                                               authority
        ANNEX T O T H E EEC TYPE-APPROVED CERTIFICATE FOR A TRACTOR TYPE W I T H
                         REGARD T O T H E POWER TAKE-OFF AND ITS P R O D U C T I O N
        (Articles 4 (2) and 10 of Council Directive 74/150/EEC of 4 March 1974 on the approximation of
        the laws of the Member States relating to the type-approval of wheeled agricultural or forestry
                                                           tractors)
        EEC type-approval No
           1. Trade name or mark of tractor
          2. Tractor type
          3. Name and address of manufacturer
          4. If applicable, name and address of manufacturer's authorized representative
          5. Brief description of type of power take-off and its protection
          6. Tractor submitted for type-approval on
          7. Technical service responsible for type-approval tests
           8. Date of report by that service
          9. Number of report issued by that service
         10. EEC type-approval with regard to the power take-off and its protection has been granted/
              refused (').
         11. The following diagrams bearing the abovementioned type-approval No are attached to this
              communication:
              An appropriate set of diagrams of those parts of the tractor considered of interest for the
              purposes of Council Directive            of         on the approximation of the laws of the Member
              States relating to power take-offs and their protection. These diagrams will be supplied to the
              competent authorities of the Member States at their express request.
         12. Remarks, if any
         13. Place
         14. Date
         15. Signature
        (') Delete where applicable.