CELEX: 51983PC0167
Language: en
Date: 1983-04-05
Title: PROPOSAL FOR A COUNCIL DIRECTIVE ON THE APPROXIMATION OF THE LAWS OF THE MEMBER STATES RELATING TO THE ROLL-OVER PROTECTION STRUCTURES ( REAR-MOUNTED ROLLBAR, FRAME OR CAB TYPE ) OF NARROW-TRACK WHEELED AGRICULTURAL OR FORESTRY TRACTORS

9. 5. 83                             Official Journal of the European Communities                           No C 123/1
                                                             II
                                                     (Preparatory Acts)
                                               COMMISSION
               Proposal for a Council Directive on the approximation of the laws of the Member States
               relating to the roll-over protection structures (rear-mounted roll bar, frame or cab type)
                                 of narrow-track wheeled agricultural or forestry tractors
                              (Submitted by the Commission to the Council on 11 April 1983)
THE COUNCIL OF THE                                               one of the driving axles of not less than 1 150 mm
EUROPEAN COMMUNITIES,                                            and weighing between 1,5 and 4,5 tonnes in the case
                                                                 of tractors covered by the 'dynamic testing' Direc-
Having regard to the Treaty establishing the                     tive and not less than 800 kg in the case of tractors
European Economic Community, and in particular                   covered by the 'static testing' Directive;
Article 100 thereof,
                                                                 Whereas the tractors covered by this Directive have
Having regard          to   the    proposal     from    the      a maximum ground clearance of 600 mm, a mini-
Commission,                                                      mum track width of both axles of less than
                                                                  1 150 mm and a mass greater than 600 kg; whereas
Having regard to the opinion of the European                     the roll-over protection structures of these tractors,
Parliament,                                                      which are used for specific activities, can be made
                                                                 subject to specific requirement or requirements
Having regard to the opinion of the Economic and                 other than those of Directives 77/536/EEC and
Social Committee,                                                79/622/EEC;
Whereas Council Directive 74/150/EEC of 4 March                  Whereas the technical requirements with which such
 1974 on the approximation of the laws of the Mem-               'narrow-track' tractors must comply pursuant to
ber States relating to the type-approval of wheeled              national laws relate inter alia to roll-over protection
agricultural or forestry tractors ('), as amended by             structures and to their attachment to the tractor;
the Act of Accession of Greece, lays down that the               whereas those requirements differ from one Member
necessary provisions for the implementation of the               State to another; whereas it is therefore necessary
EEC type-approval procedure in respect of indivi-                that all Member States adopt the same requirements
dual tractor parts or characteristics should be speci-           either in addition to, or in place of, their existing
fied in special Directives; whereas the provisions               rules in order, in particular, to allow the EEC type-
relating to roll-over protection structures and their            approval procedure which was the subject of Direc-
attachments to tractors have been laid down by                   tive 74/150/EEC to be introduced in respect of
Council Directives 77/536/EEC (2) and 79/622/                    each type of tractor;
 EEC ( 3 ); whereas these two Directives cover respec-
tively dynamic and static testing procedures —                    Whereas this Directive covers roll-over protection
either of which may be employed by manufacturers                 structures of the rear-mounted rollbar, frame or cab
for the present — and relate to standard tractors,               type having a zone of clearance whose upper limit is
that is, tractors having a maximum ground clearance              900 mm above the seat reference point in order to
of 1 000 mm and a fixed or adjustable track width of              provide a sufficiently large area or_unobstructed
                                                                 space for the protection of the driver; whereas
                                                                 another special Directive will be adopted in respect
                                                                  of roll-over protection structures having two pillars
                                                                  mounted in front of the driver, since their zone of
(') OJNoL84, 28. 3. 1974, p. 10.
(-)   OJNoL220, 29. 8. 1977, p. 1.                                clearance is characteristically reduced by the tractor
(3) OJ No LI 79, 17. 7. 1979, p. 1.                               silhouette and the advisability of not impeding
 ---pagebreak--- N o C 123/2                       Official Journal of the European Communities                               9. 5. 83
access to the driving position, and because of the           — mass of more than 600 kg corresponding to the
need to retain these structures (fold-down or not) in             unladen weight of the tractor as defined in
view of their undoubted ease of use;                              Item 2.4 of Annex I to Directive 74/150/EEC,
                                                                  including the roll-over protection structure fit-
                                                                  ted in compliance with this Directive and tyres
Whereas a harmonized component type-approval                      of the largest size recommended by the manu-
proceduce for roll-over protection structures and                 facturer.
their attachment to the tractor makes it possible for
each Member State to check compliance with the
common construction and testing requirements and                                     Article 2
to inform the other Member States of its findings by
sending them copies of the component type-                    1. Each Member State shall grant EEC component
approval certificate completed for each type of roll-        type-approval for any type of roll-over protection
over protection structure and its attachment to the          structure and its tractor attachment which satisfies
tractor; whereas the placing of an EEC component             the construction and testing requirements laid down
type-approval mark on all structures manufactured            in Annexes I to IV.
in conformity with the approved type obviates any
need for technical checks on those structures in the
other Member States; whereas common require-                 2. A Member State which has granted EEC com-
ments concerning other elements and characteristics          ponent type-approval shall take the measures
of the roll-over protection structure, in particular         required to verify, in so far as is necessary and if
those concerning the dimensions, doors, safety               need be in cooperation with the competent
glass, devices to prevent continuous roll-over if the        authorities in the other Member States, that produc-
tractor overturns, and protection of occupants, will         tion models conform to the approved type. Such
be laid down at a later date;                                verification shall be limited to spot checks.
Whereas the harmonized requirements are intended                                     A rticle 3
principally to ensure safety on the road and at work
throughout the Community; whereas, for this                  Member States shall, for each type of roll-over pro-
reason, it is necessary to introduce the obligation for      tection structure and its tractor attachment which
tractors covered by this Directive to be fitted with         they approve pursuant to Article 1, issue to the
roll-over protection structures;                             manufacturer of the tractor or of the roll-over pro-
                                                             tection structure, or to his authorized representative,
                                                             an EEC component type-approval mark conforming
                                                             to the model shown in Annex VI.
Whereas the approximation of the national laws
relating to these tractors entails reciprocal recogni-
tion by Member States of the checks carried out by           Member States shall take all appropriate measures
each of them on the basis of the common require-             to prevent the use of marks liable to create confu-
ments,                                                       sion between roll-over protection structures which
                                                             have been component type-approved pursuant to
                                                             Article 1 and other devices.
                                                                                     Article 4
HAS ADOPTED THIS DIRECTIVE:
                                                              1. No Member State may prohibit the placing on
                                                             the market of roll-over protection structures on
                                                             grounds relating to their construction if they bear
                        Article 1                            the EEC component type-approval mark.
This Directive shall apply to tractors, as defined in
Article 1 of Directive 74/150/EEC, having the fol-           2. Nevertheless, a Member State may prohibit the
                                                             placing on the market of roll-over protection struc-
lowing characteristics:
                                                             tures bearing the EEC component type-approval
                                                             mark which consistently fail to conform to the
— ground clearance of not more than 600 mm                   approved type.
     beneath the front and rear axles,
                                                             That State shall forthwith inform the other Member
— minimum track width of both axles of less than             States and the Commission of the measures taken,
     1 150 mm,                                               specifying the reasons for its decision.
 ---pagebreak--- 9. 5. 83                           Official Journal of the European Communities                          N o C 123/3
                         Article 5                            tractor on grounds relating to the roll-over protec-
                                                              tion structure or its tractor attachment if these bear
The competent authorities of each Member State                the EEC component type-approval mark and if the
shall, within one month, send to the competent                requirements laid down in Annex VIII have been
authorities of the other Member States copies of the          satisfied.
component type-approval certificates, an example
of which is given in Annex VII, completed for each
type of roll-over protection structure which they                                     Article 9
approve or refuse to approve.
                                                               1. No Member State may refuse or prohibit the
                                                              sale, registration, entry into service or use of any
                         Article 6                            tractor on grounds relating to the roll-over protec-
                                                              tion structure and its tractor attachment if these bear
 1. If the Member State which has granted EEC                 the EEC component type-approval mark and if the
component type-approval finds that a number of                requirements laid down in Annex VIII have been
roll-over protection structures bearing the same              met.
EEC component type-approval mark do not con-
form to the type which it has approved, it shall take
the necessary measures to ensure that production                                      Article 10
models conform to the approved type. The compe-
tent authorities of that State shall advise those of the       1. Any tractor to which Article 1 refers must be fit-
other Member States of the measures taken which               ted with a roll-over protection structure.
may, if necessary, where there is serious and
repeated failure to conform, extend to withdrawal of           2. This structure must comply with the require-
EEC component type-approval. The said authorities              ments laid down in Annexes I to IV to this Direc-
shall take the same measures if they are informed by          tive, or in Directives 77/536/EEC or 79/622/EEC.
the competent authorities of another Member State
of such failure to conform.
                                                                                      Article 11
2. The competent authorities of the Member States
shall, within one month, inform each other of any
                                                               Any amendments necessary in order to adapt the
withdrawal of EEC component type-approval and
                                                              requirements of the Annexes to this Directive so as
of the reasons for any such measure.
                                                              to take account of technical progress shall be
                                                              adopted in accordance with the procedure laid
                                                              down in Article 13 of Directive 74/150/EEC.
                         Article 7
Any decision taken pursuant to the provisions
adopted in implementation of this Directive to                                        Article 12
refuse or withdraw component type-approval for
roll-over protection structures and their tractor              1. Member States shall bring into force the provi-
attachments, or to prohibit their placing on the mar-         sions necessary in order to comply with this Direc-
ket or their use, shall set out in detail the reasons on      tive not later than 1 January 1985 and shall forth-
which it is based. Such decisions shall be notified to         with inform the Commission thereof.
the party concerned, who shall at the same time be
informed of the remedies available to him under the            2. Member States shall ensure that the texts of the
laws in force in the Member States and of the time             main provisions of national law which they adopt in
limits allowed for the exercise of such remedies.              the field covered by this Directive are communi-
                                                               cated to the Commission.
                         Article 8
                                                                                      Article 13
No Member State may refuse to grant EEC type-
approval or national type-approval in respect of a             This Directive is addressed to the Member States.
 ---pagebreak--- N o C 123/4                    Official Journal of the European Communities                                  9. 5. 83
                                             LIST OF ANNEXES
            ANNEX I:   Conditions for EEC component type-approval
            ANNEX II:  Conditions for testing the strength of the protection structures and of their attach-
                       ment to tractors
            ANNEX III: Test procedures:
                       A    — dynamic testing
                       B    — static testing
            ANNEX IV: Figures
            ANNEX V:   EEC component type-approval test report model
            ANNEX VI: Marking
            ANNEX VII: Model of EEC component type-approval certificate
            ANNEX IX: Annex to the EEC type-approval certificate for a tractor type with regard to the
                       strength of the protection structures and the strength of their attachment to the
                       tractor
 ---pagebreak--- 9. 5. 83                     Official Journal of the European Communities                                 N o C 123/5
                                                   ANNEX I
                      CONDITIONS FOR EEC COMPONENT TYPE-APPROVAL
         1.   DEFINITION
         1.1. 'Roll-over protection structure', hereinafter called 'protection structure', means the
              structure on a tractor the essential purpose of which is to avoid or limit risks to the
              driver resulting from roll-over of the tractor during normal use.
         1.2. The structures mentioned in Item 1.1 are characterized by the fact that, during the tests
              prescribed in Annexes II and III, they ensure sufficient unobstructed space to protect
              the driver.
         2.   GENERAL REQUIREMENTS
         2.1.  Every protection structure and its attachment to a tractor must be so designed and con-
              structed as to fulfil the essential purpose laid down in Item 1.1 above.
         2.2.  This condition is considered to be fulfilled when the requirements of Annexes II and III
               are complied with.
         3.   APPLICATION FOR EEC COMPONENT TYPE-APPROVAL
         3.1. The application for EEC component type-approval with regard to the strength of a pro-
              tection structure and the strength of its attachment to a tractor shall be submitted by the
              tractor manufacturer or by the manufacturer of the protection structure or by their
              authorized representatives.
         3.2.  The application for EEC component type-approval shall be accompanied by the under-
               mentioned documents in triplicate and by the following particulars:
              — general arrangement drawing either to a scale marked on the drawing or giving the
                    main dimensions of the protection structure. This drawing must, in particular, show
                    details of the mounting components,
              — photographs from side and rear showing mounting details,
               — brief description of the protection structure including type of construction, details
                    of mounting on the tractor and, where necessary, details of cladding means of
                    access and escape, details of interior padding and features to prevent continuous
                    rolling and details of heating and ventilation,
              — details of materials used in structural parts including attaching brackets and fixing
                    bolts (see Annex V).
         3.3.  A tractor representative of the tractor type for which the protection structure to be
               approved is intended shall be submitted to the technical service responsible for con-
               ducting the component type-approval tests. This tractor shall be fitted with the protec-
               tion structure.
         3.4.  The holder of EEC component type-approval may request its extension to other tractor
               types. The competent authority which has granted the original EEC component type-
               approval shall grant the extension if the approved protection structure and the type(s) of
               tractor for which the extension is requested comply with the following conditions:
 ---pagebreak--- NoC 123/6                      Official Journal of the European Communities                                  9. 5. 83
                 — the mass of the unballasted tractor, as defined in Item 1.4 of Annex II, does not
                      exceed by more than 5 % the reference mass used in the tests,
                 — the wheelbase or the moment of inertia in relation to the rear-wheel axle is not
                      more than the reference wheelbase or moment of inertia,
                 — the method of attachment and the points of attachment to the tractor are identical,
                 — any components, such as mudguards and bonnet which may provide support for
                      the protection structure, have identical strength and are identically situated with
                      respect to the protection structure,
                 — the critical dimensions and the position of the seat and steering wheel relative to
                      the protection structure, and the position relative to the protection structure of the
                      points deemed rigid and taken into account for the purpose of verifying that the
                      zone of clearance is protected, are such that the zone of clearance continues to be
                      protected by the structure after the latter has undergone the deformation resulting
                      from the various tests.
          4.     MARKINGS
          4.1.   Every protection structure conforming to the approved type shall bear the following
                 markings:
          4.1.1. the trade mark or name;
          4.1.2. a component type-approval mark conforming to the model in Annex VI;
          4.1.3. serial number of the protection structure;
          4.1.4. make and type(s) of tractor(s) for which the protection structure is intended.
          4.2.   All these particulars must appear on a small plate.
          4.3.   These markings must be visible, legible and indelible.
                                                     ANNEX II
             CONDITIONS FOR TESTING THE STRENGTH OF PROTECTION STRUCTURES
                                 AND THEIR ATTACHMENT TO TRACTORS
          1.     GENERAL REQUIREMENTS
          1.1.   Test purposes
                 Tests made using special rigs are intended to simulate such loads as are imposed on a
                 protection structure when the tractor overturns. These tests, described in Annex III, ena-
                 ble observations to be made on the strength of the protection structure and any brackets
                 attaching it to the tractor and any parts of the tractor which transmit the test force.
          1.2.   Test methods
                 Tests may be performed in accordance with the dynamic procedure (see Annexes II —
                 A and III — A) or the static procedure (see Annexes II — B and III — B) at the manu-
                 facturer's choice.
                 The two methods are equivalent.
 ---pagebreak--- 9.5.83                       Official Journal of the European Communities                                    No C 123/7
       1.3.   General rules governing preparation for tests
       1.3.1. The protection structure must conform to the series production specifications. It shall be
              attached in accordance with the manufacturer's recommended method to one of the
              tractors for which it is designed.
              A complete tractor is not required for the strength test in static testing; however, the
              protection structure and parts of the tractor to which it is attached shall represent an
              operating installation, hereinafter referred to as 'the assembly'.
       1.3.2. For the strength test the tractor must be fitted with all series production components
              which may affect the strength of the protection structure or which may be necessary for
              the strength test.
              Components which may create a hazard in the zone of clearance must also be fitted so
              that they may be examined to see whether the requirements of Items 4.1 and 4.2 of this
              Annex have been fulfilled.
              All components of the tractor or the protection structure including weather protection
              must be supplied or defined in drawings.
       1.3.3. For the strength tests, all detachable windows, doors, panels and non-structural fittings
              must be removed so that they may not contribute to the strengthening of the protection
              structure.
       1.3.4. Track width
              The track width shall be adjusted such that the protection structure will, as far as possi-
              ble, not be supported by the tyres during the strength tests. If these tests are conducted
               in accordance with the static procedure, the wheels may be removed.
       1.4.   Tractor reference mass
               The reference mass 'm,', used in the formulae (see Annex III — A and B) to calculate
               the height of fall of the pendulum block, the loading energies and the crushing forces,
               shall be at least that defined in Item 2.4 of Annex I to Council Directive 74/150/EEC
               (i.e. excluding 'optional' accessories but including coolant, oils, fuel, tools and driver)
               plus the protection structure and less 75 kg. Not included are 'optional' front or rear
               weights, tyre ballast, mounted implements, mounted equipment or any specialized com-
               ponent.
       2.      TESTS
       2.1.    Sequence of tests
               The sequence of tests, without prejudice to the additional dynamic test laid down in
               Annex III — A and the static overload test laid down in Annex III — B, is as follows:
       2.1.1.   Impact (dynamic tests) or loading (static tests) at the rear of the structure (see Item 1.1
               of Annexes III — A and III — B).
       2.1.2.   Rear crushing (dynamic or static tests) (see Item 1.4 of Annexes III — A and III — B).
       2.1.3.   Impact (dynamic tests) or loading (static tests) at the front of the structure (see Item 1.2
                of Annexes III — A and III — B).
       2.1.4.   Impact (dynamic tests) or loading (static tests) to the side of the structure (see Item 1.3
                of Annexes III — A and III — B).
       2.1.5.   Crushing at the front of the structure (dynamic or static tests) (see Item 1.5 of
                Annexes III — A and III — B).
 ---pagebreak--- N o C 123/8                         Official Journal of the European Communities                                     9.5.83
            2.2.     General requirements
            2.2.1.   If, during the test, any part of the restraining equipment breaks or moves, the test shall
                     be restarted.
            2.2.2.   No repairs or adjustments to the tractor or to the protection structure may be carried out
                     during the tests.
            2.2.3.   The tractor gear-box shall be in neutral and the brakes off during the tests.
            2.2.4.   If the tractor is fitted with a suspension system between the tractor body and the wheels,
                     it shall be blocked during the tests.
            2.2.5.   The side chosen for application of the first impact on the rear of the structure (in the
                     case of dynamic tests) or the first load on the rear of the structure (in the case of static
                     tests) shall be that which, in the opinion of the testing authorities, will result in the
                     application of the series of impacts or loads under the most unfavourable conditions for
                     the structure. The lateral impact or load and the rear impact or load shall be on different
                     sides of the longitudinal median plane of the protection structure. The front impact or
                     load shall be on the same side of the longitudinal median plane of the protection struc-
                     ture as the lateral impact or load.
             2.3.     Measurement tolerances
             2.3.1.   Linear dimensions: ±3 mm,
                     except for — tyre deflection: ± 1 mm,
                                  — structure deflection during horizontal loadings: ± 1 mm,
                                  — each of the two measurements for the height of fall of the pendulum
                                      block: ± 1 mm.
             2.3.2.   Masses:      ±1%.
             2.3.3.   Forces:      ±2%.
             2.3.4.   Angles:      ±2°.
             3.       ACCEPTANCE CONDITIONS
             3.1.     A protection structure submitted for EEC component type-approval shall be considered
                      as having satisfied the strength requirements if it fulfils the following conditions:
             3.1.1.   After each part-test in the dynamic test, it shall be free from cracks or tears as described
                      in Item 3.1 of Annex III — A.
                      If, during a dynamic test, unacceptable cracks or tears appear, an additional impact or
                      crushing test, as defined in Item 1.6 of Annex III — A, can be applied immediately after
                      the impact or crushing test which caused the cracks or tears to appear.
             3.1.2.   During static testing, at the point when the energy required is attained in each horizon-
                      tal load test prescribed or in the overload test (see-figures 10a, 10b and 10c), the force
                      must be greater than 0,8 Fmjx
             3.1.3.    If, during a static test, cracks or tears appear as a result of the application of the crush-
                      ing force, an additional crushing test, as defined in Item 1.7 of Annex III — B, may be
                      carried out immediately after the crushing test which caused the cracks or tears to
                      appear.
              3.1.4.   Additional cracks or tears and/or entry into or lack of protection of the zone of clear-
                       ance are permitted during the overload test.
 ---pagebreak--- 9. 5. 83                      Official Journal of the European Communities                                   N o C 123/9
         3.1.5. During the tests, other than the overload test, no part of the protection structure shall
                enter the zone of clearance as defined in Item 2 of Annexes III — A and III — B.
         3.1.6. During the tests, other than the overload test, no part of the zone of clearance shall be
                outside the protection of the structure, in accordance with Item 3.2.2 of Annexes III —
                A and III — B.
         3.1.7. During the tests the protection structure must not impose any constraints on the seat
                structure.
         3.1.8. The elastic deflection, measured in accordance with Item 3.3 of Annexes III — A and
                III — B, shall be less than 250 mm.
         3.2.   There shall be no accessories presenting a hazard for the driver. There shall be no pro-
                jecting part or accessory which is liable to injure the driver should the tractor overturn,
                or any part or accessory which is liable to trap him — for example by the leg or the foot
                — as a result of the deflections of the structure.
         4.     TEST REPORT
         4.1.   The test report shall be attached to the EEC component type-approval certificate
                referred to in Annex VII. The presentation of the report shall be as shown in Annex V.
                The report shall include:
         4.1.1.  a general description of the protection structure's shape and construction (through
                 drawings 1/20 scale for general drawings and 1/2,5 for attachment details) including
                 materials and fastenings, external dimensions of the tractor with protection structure fit-
                 ted, main interior dimensions and details of provisions for normal entry and exit and for
                 escape and, where appropriate, details of the heating and ventilation system;
         4.1.2. details of any special features such as devices to prevent the continuous rolling of the
                tractor;
         4.1.3. a brief description of any interior padding;
         4.1.4.  a statement of the type of windscreen and glazing fitted.
         4.2.    The report must clearly identify the tractor (make, type, trade name, etc.) used for test-
                 ing and the other tractors for which the protection structure is intended.
         4.3.    If EEC component type-approval is being extended to other tractors, the report must
                 include the exact reference of the report of the original EEC component type-approval
                 as well as precise indications regarding the requirements laid down in Item 3.4 of
                 Annex I.
                                     A. APPARATUS AND EQUIPMENT
                                                 for dynamic tests
          1.     Pendulum block
         1.1.   A pendulum block shall be suspended by two chains or wire ropes from pivot points not
                less than 6 m above the ground. Means shall be provided for adjusting independently
                the suspended height of the block and the angle between the block and the supporting
                chains or wire ropes.
 ---pagebreak--- N o C 123/10                    Official Journal of the European Communities                                     9. 5. 83
            1.2. The mass shall be 2 000 ±20 kg excluding the mass of the chains or wire ropes which
                 themselves shall not exceed 100 kg. The length of the sides of the impact face shall be
                 680 ± 20 mm (see Annex IV, figure 4). The block shall be filled in such a way that the
                 position of its centre of gravity is constant and coincides with the geometrical centre of
                 the parallelepiped.
            1.3. The parallelepiped shall be connected to the system which pulls it backwards by an
                 instantaneous release mechanism which is so designed and located as to enable the pen-
                 dulum block to be released without causing any significant oscillation of the parallele-
                 piped.
           2.    Pendulum supports
                 The pendulum pivot points shall be rigidly fixed so that their displacement in any direc-
                 tion does not exceed 1 % of the height of fall.
            3.    Lashings
            3.1.  Anchoring rails with the requisite track width and covering the necessary area for lash-
                  ing the tractor in all the cases illustrated (see Annex IV, figures 5, 6 and 7) shall be rig-
                  idly attached to a concrete base beneath the pendulum.
            3.2. The tractor shall be lashed to the rails by means of wire rope with round strand, fibre
                 core, construction 6x19 in accordance with ISO 2408 and a nominal diameter of
                  13 mm. The metal strands shall have an ultimate tensile strength of 1 770 MPa.
            3.3.  The central pivot of an articulated tractor shall be supported and lashed down as appro-
                  priate for all tests. For the lateral impact test, the pivot shall also be propped from the
                  side opposite the impact. The front and rear wheels need not be in line if this makes it
                  more convenient to attach appropriate wire ropes.
            4.    Wheel prop and beam
            4.1.  A softwood beam 150 mm square shall be used as a prop for the wheels during the
                  impact tests (see Annex IV, figures 5, 6 and 7).
            4.2.  A softwood beam shall be clamped to the floor to brace the rim of the wheel opposite
                  the side of impact as shown in Annex IV, figure 7.
             5.    Props and lashings for articulated tractors
            5.1.  Additional props and lashings shall be used for articulated tractors. Their purpose is to
                  ensure that the section of the tractor on which the protection structure is fitted is as rigid
                  as that of a rigid tractor.
            5.2.  Additional specific details are given in Annex III — A for the impact and crushing
                  tests.
            6.   Tyre pressure and deflection
            6.1.  The tractor tyres shall not be liquid-ballasted and shall be inflated to the pressures pres-
                  cribed by the tractor manufacturer for field work.
            6.2.  The lashings shall be tensioned in each particular case such that the tyres undergo a
                  deflection equal to 12 % of the tyre wall height before tensioning.
 ---pagebreak--- 9. 5. 83                     Official Journal of the European Communities                              N o C 123/11
         7.   Crushing rig
              A rig as shown in Annex IV, figure 8, shall be capable of exerting a downward force on
              a protection structure through a rigid beam approximately 250 mm wide connected to
              the load-applying mechanism by means of universal joints. Suitable axle stands shall be
              provided so that the tractor tyres do not bear the crushing force.
         8.   Measuring apparatus
         8.1. A device such as that illustrated in Annex IV, figure 9, for measuring the elastic deflec-
              tion (the difference between the maximum momentary deflection and the permanent
              deflection).
         8.2. A device for checking that the protection structure has not entered the zone of clearance
              and that the latter has remained within the structure's protection during the test (see
              Item 3.2.2 of Annex III — A).
                                    B. APPARATUS AND EQUIPMENT
                                                 for static tests
          1.   Static testing rig
         1.1. This rig shall enable horizontal thrusts or 'forces' to be applied to the structure.
         1.2. Provision must be made so that the load can be uniformly distributed normal to the
              direction of the force and along a beam equal in length to one of the exact multiples of
              50, between 250 and 700 mm.
              The stiff beam shall have a vertical face dimension of 150 mm.
              The edges of the beam in contact with the protection structure shall be curved, with a
              maximum radius of 50 mm.
         1.3. The pad shall be capable of being adjusted to any angle in relation to the direction of
              the force, in order to be able to follow the angular variations of the structure's load-
              bearing surface as the structure deflects.
         1.4. Direction of the force (deviation from horizontal):
              — at start of test, under zero load: ± 2 ; ,
              — during test, under load: 10° above and 20° below the horizontal. These variations
                    must be kept to a minimum.
         1.5. The deflection rate shall be slow (less than 5 mm/s) so that the load may at all moments
              be considered as 'static'.
         2.    Apparatus for measuring the energy absorbed by the structure
         2.1. The 'force versus deflection' curve shall be plotted in order to determine the energy
               absorbed by the structure. There is no need to measure the force and deflection at the
               point where the load is applied to the structure; however, 'force' and 'deflection' shall
               be measured simultaneously and co-linearly.
         2.2.  The point of origin of deflection measurements shall be selected such that only the
               energy absorbed by the structure and/or the deflection of certain parts of the tractor is
               taken into account. The energy absorbed by the deflection and/or the slipping of the
               anchoring shall be ignored.
 ---pagebreak--- No C 123/12                   Official Journal of the European Communities                                     9. 5. 83
           3.   Means of anchoring the tractor to the ground
           3.1. Anchoring rails with the requisite track width and covering the necessary area for
                anchoring the tractor in all the cases illustrated shall be rigidly attached to a concrete
                base near the test rig.
           3.2. The tractor shall be anchored to the rails by any suitable means (plates, wedges, wire
                ropes, jacks, etc.) such that it cannot move during the tests. This requirement shall be
                checked while the loads are being applied, by means of the usual devices for measuring
                length. If the tractor moves, the entire test shall be repeated, unless the system for mea-
                suring the deflections used in plotting the 'force versus deflection' curve is connected to
                the tractor.
           4.   Crushing rig
                A rig as shown in figure 8 of Annex IV shall be capable of exerting a downward force
                on a protection structure through a rigid beam approximately 250 mm wide connected
                to the load-applying mechanism by means of universal joints. Suitable axle stands shall
                be provided so that the tractor tyres do not bear the crushing force.
           5.   Other measuring apparatus
           5.1. A device such as that illustrated in figure 9 of Annex IV, for measuring the elastic
                deflection (the difference between the maximum momentary deflection and the perma-
                nent deflection).
           5.2. A device for checking that the protection structure has not entered the zone of clearance
                and that the latter has remained within the structure's protection during the test (see
                 Item 3.2.2 of Annex III —B).
           6.   Symbols
                 m, (kg)          =   tractor reference mass, as defined in Item 1.4 of Annex II.
                 H (mm)           =   falling height of the pendulum block.
                 H' (mm)          =   falling height of the pendulum block for additional test.
                 L(mm)            =   tractor reference wheelbase.
                          :
                 1 (kg m )        =    tractor reference moment of inertia in relation to the centre line of
                                      the rear wheels, notwithstanding the mass of these wheels.
                 D (mm)           =    deflection of the structure at the point of impact (dynamic tests) or
                                       at the point of, and in line with, the load application (static tests).
                 D' (mm)          =    deflection of the structure for the calculated energy required.
                 F (N)            =    static lead force.
                  Firm (N)        =    maximum static load force occurring during loading, with the
                                       exception of the overload.
                  F' (N)          =    force for calculated energy required.
                  F-D             =    force/deflection diagram.
                  E,s (J)         =    energy to be absorbed during side loading.
                  E,i (J)         =    energy to be absorbed during longitudinal loading.
                  F, (N)          =     vertical crushing force.
 ---pagebreak---                   Official Journal of the European Communities                                No C 123/13
                                       ANNEX III
                                  TEST PROCEDURE
                                     A. Dynamic tests
   IMPACT AND CRUSHING TESTS
   Impact at the rear
1. The tractor shall be so placed in relation to the pendulum block that the block will strike
   the protection structure when the impact face of the block and the supporting chains or
                                                                    M,
   wire ropes are at an angle with the vertical plane equal to —- with a 20 ° maximum,
   unless, during deflection, the protection structure at the point of contact forms a greater
   angle to the vertical. In this case the impact face of the block shall be adjusted by means
   of an additional support so that it is parallel to the protection structure at the point of
   impact at the moment of maximum deflection, the supporting chains or wire ropes
   remaining at the angle defined above.
   The suspended height of the block shall be adjusted, and necessary steps taken so as to
   prevent the block from turning about the point of contact.
   The point of impact shall be that part of the protection structure likely to hit the ground
    first in a rearward overturning accident, normally the upper edge. The position of the
    centre of gravity of the block shall be one-sixth of the width of the top of the protection
    structure inwards from a vertical plane parallel to the median plane of the tractor touch-
    ing the outside extremity of the top of the protection structure.
    If the structure is curved or protruding at this point, wedges enabling the impact to be
    applied thereon will have to be added, without thereby reinforcing the structure.
2.  The tractor shall be lashed to the ground by means of four wire ropes, one at each end
    of both axles, arranged as indicated in figure 5 of Annex IV. The front and rear lashing
    points shall be located at a distance such that the wire ropes make an angle of less than
    30 ° with the ground. The rear lashings shall in addition be so arranged that the point of
    convergence of the two wire ropes is located in the vertical plane in which the centre of
    gravity of the block travels.
   The wire ropes must be tensioned such that the tyres undergo the deflections given in
    Item 6.2 of Annex II — A.
   With the wire ropes tensioned, the wedging beam shall be placed in front of and tight
   against the rear wheels and then fixed to the ground.
3.  If the tractor is of the articulated type, the point of articulation shall, in addition, be
   supported by a wooden block at least 100 mm square and firmly lashed to the ground.
4.  The pendulum block shall be pulled back so that the height of its centre of gravity
    above that at the point of impact is given by one of the following two formulae:
    H = 2,165 x 1 0 s m, L: or        H = 5,73 x 10-- I.
    The block must then be released so as to strike the protection structure.
    Impact at the front
1.  The tractor shall be so placed in relation to the pendulum block that the block will strike
    the protection structure when the impact face of the block and the supporting chains or
 ---pagebreak--- NoC 123/14                       Official Journal of the European Communities                                    9. 5. 83
                 wire ropes are at an angle with the vertical plane, equal to T^. with a 20 ° maximum,
                 unless, during deflection, the protection structure at the point of contact forms a greater
                 angle to the vertical. In this case the impact face of the block shall be adjusted by means
                 of an additional support so that it is parallel to the protection structure at the point of
                 impact at the moment of maximum deflection, the supporting chains or wire ropes
                 remaining at the angle defined above. The suspended height of the pendulum block
                 shall be adjusted and necessary steps taken so as to prevent the block from turning
                 about the point of contact.
                 The point of impact shall be that part of the protection structure likely to hit the ground
                 first if the tractor overturns sideways while travelling forward, normally the upper edge.
                 The position of the centre of gravity of the block shall be one-sixth of the width of the
                 top of the protection structure inwards from a vertical plane parallel to the median
                 plane of the tractor touching the outside extremity of the top of the protection structure.
                 If the structure is curved or protruding at this point, wedges enabling the impact to be
                 applied thereon will have to be added, without thereby reinforcing the structure.
          1.2.2. The tractor shall be lashed to the ground by means of four wire ropes, one at each end
                 of both axles, arranged as indicated in figure 6 of Annex IV. The front and rear lashing
                 points shall be located at a distance such that the wire ropes make an angle of less than
                 30 ° with the ground. The rear lashings shall, in addition, be so arranged that the point
                 of convergence of the two wire ropes is located in the vertical plane in which the centre
                 of gravity of the pendulum block travels.
                 The wire ropes must be tensioned such that the tyres undergo the deflections given in
                 Item 6.2 of Annex II—A.
                 With the wire ropes tensioned, the wedging beam shall be placed firmly behind the rear
                 wheels and then fixed to the ground.
          1.2.3.  If the tractor is of the articulated type, the point of articulation shall in addition be sup-
                 ported by a wooden block at least 100 mm square and firmly lashed to the ground.
          1.2.4. The pendulum block shall be pulled back so that the height of its centre of gravity
                 above that at the point of impact is given by one of the following two formulae, to be
                 chosen according to the reference mass of the tractors subjected to the tests:
                 H = 25 -I- 0,07 m, for tractors with a reference mass of less than 2 000 kg,
                  H = 125 4- 0,02 m, for tractors with a reference mass of more than 2 000 kg.
                 The pendulum block must then be released so as to strike the protection structure.
          1.3.   Impact from the side
          1.3.1. The tractor shall be so placed in relation to the pendulum block that the block will strike
                 the protection structure when the impact face of the weight and the supporting chains or
                 wire ropes are vertical unless, during deflection, the protection structure at the point of
                 contact forms an angle to the vertical. In this case the impact face of the block shall be
                 adjusted by means of an additional support so that it is parallel to the protection struc-
                 ture at the point of impact at the moment of maximum deflection, the supporting chains
                 or wire ropes remaining vertical on impact.
                 The suspended height of the block shall be adjusted and necessary steps taken so as to
                 prevent the block from turning about the point of contact.
                 The point of impact shall be that part of the protection structure likely to hit the ground
                 first in a sideways overturning accident, normally the upper edge. Unless it is certain
 ---pagebreak--- 9. 5. 83                       Official Journal of the European Communities                                NoC 123/15
                that another part of this edge would hit the ground first, the point of impact shall be in
                the plane at right angles to the median plane and passing 200 mm in front of the seat
                reference point, the seat being set at the mid position of the longitudinal seat adjust-
                ment.
         1.3.2. The tractor wheels on the side which is to receive the impact shall be lashed to the
                ground by means of wire ropes passing over the corresponding ends of the front and
                rear axles. The wire ropes shall be tensioned to produce the tyre deflection values given
                in Item 6.2 of Annex II—A on the side which is to receive the impact.
                With the wire ropes tensioned, the wedging beam shall be placed on the ground, pushed
                tight against the tyres on the side opposite that which is to receive the impact and then
                fixed to the ground. It may be necessary to use two beams or wedges if the outer sides of
                the front and rear tyres are not in the same vertical plane.
                The prop shall then be placed as indicated in figure 7 of Annex IV against the rim of the
                wheel opposite to the impact, pushed firmly against the rim and the fixed at its base.
                The length of the prop shall be chosen such that it makes an angle of 30 ±3 ° with the
                ground when in position against the rim. In addition, its length must, if possible, be
                between 20 and 25 times greater than its thickness and its width between two and three
                times greater than its thickness. The props shall be shaped at both ends as shown in the
                details of figure 7 of Annex IV.
         1.3.3.  If the tractor is of the articulated type, the point of articulation shall, in addition, be
                supported by a wooden block at least 100 mm square and laterally supported by a
                device similar to the prop pushed against the rear wheel. The point of articulation shall
                then be lashed firmly to the ground.
         1.3.4. The pendulum block shall be pulled back so that the height of its centre of gravity
                above that at the point of impact is given by one of the following two formulae, to be
                chosen according to the reference mass of the tractors subjected to the tests:
                 H = 25 + 0,20 m, for tractors with a reference mass of less than 2 000 kg,
                 H = 125 + 0,15 m, for tractors with a reference mass of more than 2 000 kg.
                 The pendulum block must then be released so as to strike the protection structure.
         1.4.   Crushing at the rear
                The beam shall be positioned over the rear uppermost structural member(s) and the
                resultant of the crushing forces shall be located in the tractor's median plane.
                 A force, Fv = 20 m„ shall be applied.
                 Where the rear part of the protection structure roof will not sustain the full crushing
                force, the force shall be applied until the roof is deflected to coincide with the plane
                joining the upper part of the protection structure with that part of the rear of the tractor
                 capable of supporting the vehicle's mass when overturned.
                The force shall then be removed, and the tractor or loading force repositioned so that
                the beam is over that point of the protection structure which would then support the
                 tractor when completely overturned.
                The force Fv shall then be applied.
                 It shall be applied for a minimum of five seconds following the cessation of any
                 visually detectable deflection.
 ---pagebreak--- NoC 123/16                      Official Journal of the European Communities                                   9. 5. 83
          1.5.   Crashing at the front
                 The beam shall be positioned over the front uppermost structural members and the
                 resultant of the crushing forces shall be located in the tractor's median plane.
                 A force, F^ = 20 m„ shall be applied.
                 Where the front part of the protection structure roof will not sustain the full crushing
                 force, the force shall be applied until the roof is deflected to coincide with the plane
                 joining the upper part of the protection structure with that part of the front of the tractor
                 capable of supporting the vehicle's mass when overturned.
                 The force shall then be removed, and the tractor or loading force repositioned so that
                 the beam is over that point of the protection structure which would then support the
                 tractor when completely overturned.
                 The force F, shall then be applied.
                  It shall be applied for a minimum of five seconds following the cessation of any vis-
                 ually detectable deflection.
          1.6.    Additional tests
          1.6.1. If cracks or tears which cannot be considered negligible appear during an impact test, a
                 second similar impact, but from a height of fall equal to:
                                                           H    12 + 4a
                                                   H =
                                                          TO X l+2a
                 shall be applied immediately after the impact which caused these cracks or tears to
                 appear, 'a' being the ratio between the permanent deflection and the elastic deflection
                 (a = Dp/De) measured at the point of impact.
                 The permanent deflection added by the second impact shall not exceed 30 % of the per-
                 manent deflection caused by the initial test.
                 For the additional test to be performed, the elastic deflection must be measured during
                 all the impact tests.
          1.6.2.  If cracks or tears which cannot be considered negligible appear during a crushing test, a
                 second similar crushing test, but with a force equal to 1,2 Fv, shall be applied immedia-
                 tely after the crushing test which caused the cracks or tears to appear.
          2.      ZONE OF CLEARANCE
          2.1.    The zone of clearance is shown in figures 1, 2a, 2b, 2c, 2d and 2e of Annex IV.
                  The zone is defined on the basis of a 'vertical reference plane', generally longitudinal to
                  the tractor and passing through the seat reference point and the centre of the steering
                  wheel. This plane must be able to move horizontally with the seat and the steering wheel
                  during the impact but to remain perpendicular to the floor of the tractor or of the pro-
                  tection structure if this is resilientlv mounted.
          2.2.   The zone is bounded by the following planes, the tractor being on a horizontal surface
                 and, where the steering wheel is adjustable, its position adjusted for normal seated driv-
                  ing.
          2.2.1.  A horizontal plane — A,B|B2A2 = 900 mm above the seat reference point.
          2.2.2. An inclined plane — H|H2G2G| — perpendicular to the vertical reference plane and
                 including a point 900 mm directly above the seat reference point and the rearmost point
                 of the seat back-rest.
 ---pagebreak--- 9. 5. 83                         Official Journal of the European Communities                               NoC 123/17
         2.2.3.   A cylindrical surface — A ^ H ^ H , — which is perpendicular to the reference plane, has
                  a radius of 120 mm and is tangential to the planes defined above in Items 2.2.1 and
                  2.2.2.
         2.2.4.   A cylindrical surface — BiCiC2B2 — perpendicular to the reference plane, having a rad-
                  ius of 900 mm and extending forward by 400 mm the plane defined in Item 2.2.1 above,
                  to which it is tangential, following a horizontal line 150 mm forward of the seat refer-
                  ence point.
         2.2.5.   An inclined plane — CiD,D2C2 — perpendicular to the reference plane, extending the
                  surface defined in Item 2.2.4 above and passing through a point 40 mm from the outer
                  edge of the steering wheel.
         2.2.6.    A vertical plane — D|K,E|E2K.2D2 — perpendicular to the reference plane and passing
                  40 mm in front of the outer edge of the steering wheel.
         2.2.7.    A horizontal plane — EiF|P,N|N2P2F2E2 — passing through the seat reference point.
         2.2.8.    A curvilinear surface — G|L|M,N|N2M:L2G2 — perpendicular to the reference plane
                   and in contact with the back of the seat back-rest.
         2.2.9.   Two vertical planes — K|I,F,E, and K.2I2F2E2 — parallel to the reference plane, 250 mm
                  either side of this plane, and bounded towards the top 300 mm above the horizontal
                  plane passing through the seat reference point.
         2.2.10.  Two inclined and parallel planes — A ^ C i D ^ l ^ C H , and A2B2C2D2K2I2L2G2H2 —
                  starting from the upper edge of the planes defined in Item 2.2.9 above and joining the
                  horizontal plane defined in Item 2.2.1 above at least 100 mm from the reference plane
                  on the side where the impact is applied.
         2.2.11.  Two vertical planes — Q|P,N,M| and Q2P2N2M2 — parallel to the reference plane,
                  200 mm either side of this plane, and bounded towards the top 300 mm above the hori-
                  zontal plane passing through the seat reference point.
         2.2.12.  Two portions — I|Q|P,Fi and I2Q2P2F2 — of a vertical plane, perpendicular to the refer-
                  ence plane and passing 350 mm in front of the seat reference point.
         2.2.13.  Two portions — I1QlMiL, — and I2Q2M:L2 — of the horizontal plane passing 300 mm
                  above the seat reference point.
         2.3.     Seat location and seat reference point
         2.3.1.   Seat reference point
         2.3.1.1. The reference point shall be established using the apparatus illustrated in figures 3a and
                  3b of Annex IV. The apparatus shall consist of a seat pan board and backrest boards.
                  The lower backrest board shall be jointed in the region of the ischium humps (A) and
                  loin (B), the joint (B) being adjustable in height.
         2.3.1.2. The reference point is defined as the point in the median longitudinal plane of the seat
                  where the tangential plane of the lower backrest and a horizontal plane intersect. This
                  horizontal plane cuts the lower surface of the seat pan board 150 mm in front of the
                  abovementioned tangent.
         2.3.1.3. The apparatus shall be positioned on the seat. It shall then be loaded with a force of 550
                  N at a point 50 mm in front of joint (A), and the two parts of the backrest board shall be
                  lightly pressed tangentially against the backrest.
         2.3.1.4. If it is not possible to determine definite tangents to each area of the backrest (above
                  and below the lumbar region), the following must be done:
                  — where no definite tangent to the lower area is possible, the lower part of the back-
                        rest board is pressed against the backrest vertically,
 ---pagebreak--- NoC 123/18                        Official Journal of the European Communities                                 9. 5. 83
                   — where no definite tangent to the upper area is possible, the joint (B) is fixed at a
                         height of 230 mm above the lower surface of the seat pan board, the backrest board
                         being perpendicular to the latter.
                   Then the two parts of the backrest board are lightly pressed against the backrest tangen-
                   tially.
          2.3.2.   Seat position and adjustment for determining the location of the seat reference point.
          2.3.2.1. Where the seat position is adjustable, the seat must be adjusted to its rear uppermost
                   position.
          2.3.2.2. Where the inclination of the backrest and seat pan is adjustable, these must be adjusted
                   so that the reference point is in its rear uppermost position.
          2.3.2.3. Where the seat is equipped with suspension, the latter must be blocked at mid-travel,
                    unless this is contrary to the instructions clearly laid down by the seat manufacturer.
          3.        MEASUREMENTS TO BE MADE
          3.1.      Fractures and cracks
                    After each test all structural members, joints and fastening systems shall be visually
                   examined for fractures or cracks, any small cracks in unimportant parts being ignored.
                    Any tears caused by the edges of the pendulum weight shall be ignored.
          3.2.      Zone of clearance
                    During each test an examination shall be made to see whether any part of the protection
                    structure has entered the zone of clearance round the driver's seat as defined in Item 2
                    of this Annex.
          3.2.2.    In addition, an examination shall be made to determine whether any part of the zone of
                    clearance is outside the protection of the protection structure. For this purpose it shall
                    be considered to be outside the protection of the roll-over protection structure if any
                    part of it would have come into contact with flat ground if the tractor had overturned
                    towards the direction from which the impact came. For this purpose the front and rear
                    tyre and track setting shall be assumed to be the smallest specified by the manufacturer.
          3.3.      Elastic deflection (on side impact)
                    The elastic deflection shall be measured 900 mm above the seat reference point, in the
                    vertical plane passing through the point of impact. For this measurement, apparatus as
                    shown in figure 9 of Annex IV shall be used.
           3.4.     Permanent deflection
                    After the final crushing test, the permanent deflection of the protection structure shall
                    be recorded. For this purpose, before the start of the test, the position of the main pro-
                    tection structure members in relation to the seat reference point shall be recorded.
 ---pagebreak--- 9. 5. 83                       Official Journal of the European Communities                                 No C 123/19
                                               TEST PROCEDURE
                                                   B. Static tests
         1.     LOADING AND CRUSHING TESTS
         1.1.   Loading at the rear
         1.1.1. The load shall be applied horizontally, in a vertical plane parallel to the tractor's
                 median plane.
                The load application point shall be that part of the protection structure likely to hit the
                ground first in a rearward overturning accident, normally the upper edge. The vertical
                plane in which the load is applied shall be located at a distance of one-third of the
                external width of the upper part of the structure from the median plane.
                 If the structure is curved or protruding at this point, wedges enabling the load to be
                applied thereon will have to be added, without thereby reinforcing the structure.
         1.1.2. The assembly defined in Item 1.3.1 of Annex II shall be lashed to the ground as des-
                cribed in Item 3 of Annex II-B.
         1.1.3. The energy absorbed by the protection structure during the test shall be at least
                                         E,i = 2,165 x 10-" mt L- or E,, = 0,574 x I
         1.2.   Loading at the front
         1.2.1. The load shall be applied horizontally in a vertical plane parallel to the tractor's median
                plane.
                The point of application shall be that part of the protection structure likely to hit the
                ground first if the tractor overturns sideways while travelling forward, i.e. normally the
                upper edge. The point of application of the load shall be one-sixth of the width of the
                top of the protection structure inwards from a vertical plane parallel to the median
                plane of the tractor touching the outside extremity of the top of the protection structure.
                If the structure is curved or protruding at this point, wedges enabling the load to be
                applied thereon will have to be added, without thereby reinforcing the structure.
         1.2.2. The assembly defined in Item 1.3.1 of Annex II shall be anchored to the ground as des-
                cribed in Item 3 of Annex II — B.
         1.2.3. The energy absorbed by the protection structure during the test shall be at least
                                                     Ej, = 500 + 0,5 m,
         1.3.   Loading from the side
         1.3.1. The side loading shall be applied horizontally, in a vertical plane perpendicular to the
                tractor's median plane and passing as close as possible to the tractor's centre of gravity.
                The load application point shall be that part of the protection structure likely to hit the
                ground first in a sideways overturning accident, normally the upper edge.
 ---pagebreak--- N o C 123/20                         Official Journal of the European Communities                                 9. 5. 83
            1.3.2.   The assembly defined in Item 1.3.1 of Annex II shall be lashed to the ground as des-
                     cribed in Item 3 of Annex II — B.
            1.3.3.   The energy absorbed by the protection structure during the test shall be at least
                                                              EIS = 1,75 m,
            1.4.     Crushing at the rear
                     All provisions are identical to those given in Item 1.4 of Annex III — A.
            1.5.     Crushing at the front
                     All provisions are identical to those given in Item 1.5 of Annex III — A.
            1.6.     Overload test
            1.6.1.   Where tearing, cracking or bending occurs during a horizontal loading test, an overload
                     test may be required to determine the residual strength of the structure and to ensure
                     that it is sufficient to withstand any successive roll-overs (see figures 10a, 10b and 10c).
                     An overload test shall be carried out in all cases where the force decreases by more than
                     3 % during the last 5 % of the deflection reached when the energy required is absorbed
                     by the structure (see figure 10b).
            1.6.2.   The overload test involves the gradual increase of the horizontal load by increments of
                     5 % of the initial energy requirement up to a maximum of 20% of energy added (see
                     figure 10c).
            1.6.2.1. The overload test is satisfactory if, after each increase by 5, 10 or 15% in the energy
                     required, the force decreases by less than 3 % for a 5 % increment and remains more
                     than 0,8 Fmjx.
            1.6.2.2. The overload test is satisfactory if, after the structure has absorbed 20 % of the added
                     energy, the force exceeds 0,8 Fm;„.
            1.6.2.3. Additional cracks or tears and/or entry into or lack of protection of the zone of clear-
                     ance due to elastic deflection are permitted during the overload test. However, after the
                     removal of the load, the structure shall not enter the zone of clearance, which shall be
                     completely protected.
            1.7.     Crushing test
                     If cracks or tears which cannot be considered as negligible appear during a crushing
                     test, a second, similar crushing, but with a force of 1.2 F,, shall be applied immediately
                     after the crushing which caused the cracks or tears to appear.
           2.        ZONE OF CLEARANCE
                     The zone of clearance is identical to that described in Item 2 of Annex III — A above,
                     except that the word 'impact' is to be replaced by 'load' in the last line of Item 2.2.10.
           3.        MEASUREMENTS TO BE MADE
            3.1.      Fractures and cracks
                      After each test all structural members, joints and attachment systems shall be visually
                      examined for fractures or cracks, any small cracks in unimportant parts being ignored.
 ---pagebreak--- ^ ^ 3                     C^fftct^l^ourn^ofth^^uroo^nC^ornrnunin^                                 ^oCl^B^I
         fOunn^ each test an examination shall be made to see whether any part of the protection
         structure has entered the ^one of clearance as defined in Item^abo^e
         In addition, an examination shall be made to determine whether any part of the zone of
         clearance is outside the protection of the protection structure For this purpose it shall
         be considered to be outside the protection ofthe protection structure ifany part of it
         would ha^e come into contact with flat ground if the tractor had overturned towards the
         directionfrom whichtheimpactcame For thispurposethefront and rear tyres and
         tracts setting shall be assumed to be the smallest specified by the manufacturer
      ^3  ^ ^ ^ c ^ n ^ c r ^ ^ u n d e r side loading
         The eiasnc deflection shall be measured ^00 mm abo^e the reference poinLm^heverti^
         cal plane in which the load is applied For this measurement, any apparatus similar to
         that illustrated in fi^ure^of Annex IV,may be used
          After the final crushing test, the permanent deflection of the protection structure shall
         be recorded For this purpose, before the start of the test, the position of the main pro
         tection structure members in relation to the seat reference point shall be recorded
 ---pagebreak---    NoC 123/22 Official Journal of the European Communities       9. 5. 83
                                  ANNEX IV
                                   FIGURES
                                               B, A: B0
X,
                                                           V — ^
                                                                        'L,
E^
                                              N,
                                     Figure 1
                               Zone of clearance
                            3
                             A rear perspective view
 ---pagebreak--- 9. 5. 83 Official Journal of the European Communities    No C 123/23
                               Figure 2a
                           Zone of clearance
               Cross-section through the reference plane
 ---pagebreak--- No C 123/24             Official Journal of the European Communities                                 9. 5. 83
                                                                                       _
                                                                              1
                                                                                 8                1400
                                                                                                  1
                                                                                       o
                Figure 2b                                                                 Figure 2c
            Zone of clearance                                                         Zone of clearance
               Side view                                                                  Rear view
                                    ZONE OF CLEARANCE
                Figure 2d                                            Figure 2e
            Zone of clearance                           Lower part of the zone of clearance
                                                                   3
                Top view                                            A rear view
 ---pagebreak--- 9. 5 83               Official Journal of the European Communities                           N o C 123/25
                                                                              Hinge
                                                                              Upper backrest
                                                                             board
                                                                            Lower backrest
                                                                            board
         Seat pan board
                t
        Dimensions in mm
                                            Figure 3a
                        Apparatus for determination of seat reference point
          Dimensions in millimetres
                                            Figure 3b
                           Method of determining seat reference point
 ---pagebreak--- NoC 123/26                          Official Journal of the European Communities                      9. 5. 83
                                                                                                  660-700
    Impact face
                                                                                          Dimensions in mm
Pin marking position of centre of gravity
                                                          Figure 4
                                   Pendulum block and its suspending chains or wire ropes
 ---pagebreak--- ^ . ^                       Official Journal of the European Communities                               ^oCl^B^7
                                              Impact at the rear
      The configuration of the protection structure shown is solely for the purpose of illustration and
      for dimensional reference It does not purport to denote design requirements
 ---pagebreak--- N o C 123/28                       Official Journal of the European Communities                                     9. 5. 83
                                                                                                    Centre of gravity
                                                                                                                     [
                                                                                                    of weight passing
                                                                                                    through the point
                                                                                                    of impact
 Adjustable                Wedge fixed
 lashing                   behind wheels
                            after lashing
                                                        Figure 6
                                                   Impact at the front
             Note
            The configuration of the protection structure shown is solely for the purpose of illustration and
            for dimensional reference It does not purport to denote design requirements
 ---pagebreak---                                         Rounded to follow the shape
                                        of the rim
Bevelled end between
prop and block
                                                                                                                       21
                                                                                                                       2
                                                                                                                       £L
                                                                                                                       o
                                                                                                                       I
                                                                                                                       3"
                                                                                                                       n>
                                                                                                                       m
                                                                                                                       c
                                                                                                                       3
                                                                                                                       1
                                                                                                                       3
                                                                                                                       o
                                                                                                                       o
                                                                                                                       3
                                                                                                                       3
                                                                                                                       c
                                                                                                                       3
                                                                                            Two wire ropes to exert a
                                                                                            downward force on the axle
                                                                  Figure 7                  on the impact side
                                                                                                                       o
                                                             Impact from side
                                                                                                                       o
                     Note
                     The configuration of the protection structure shown is solely for the purpose of illustration and
                     for dimensional reference It does not purport to denote design requirements
 ---pagebreak--- NoC 123/30                       Official Journal of the European Communities                                       9. 5. 83
                                                                                                     Universal
                                                                                                     pin joint
                                                                                                         Double
                                                                                                         acting
                                                                                                         hydraulic
                                                                                                         cylinder
                                                                                                         Universal
                                                                                                        pin joint
     Supports under front and rear axles
                                                         Figure 8
          Crushing test
          Note:
          The configuration of the roll-over protection structure shown is solely for the purpose of illustra-
          tion and for dimensional reference. It does not purport to denote design requirements.
                                                                                               Horizontal rod
                                                                                               attached to the
                                                                                               structure
                                                                                               Vertical support
                                                                                               attached to the tractor
                                                                                               chassis or
                                                                                               floor of the
                                                                                               protection structure
                                 I. Permanent deflection
                       ' i       2. Elastic deflection
                                 3. Total deflection (permanent + elastic deflection)
                                                        Figure 9
                                Example of apparatus for measuring elastic deflection
 ---pagebreak--- 9. 5. 83                           Official Journal of the European Communities                                N o C 123/31
         Force
       ,
                                                                                         Deflection and force for
                                                                                         which the structure has
                                                                                         absorbed the calculated
                                                                                         energy required (11)
                                                                  F' = force for calculated energy required
                                                                  D' = deflection for calculated energy
                                                                        required
                                               0,95 D     D                                          Deflection
              1 Reference aF' corresponding to 0,95 D'
              1 1 Overload test not necessary since aF' < 1,03 F'
                                                         Figure 10a
                                                   Force/deflection curve
                                                 Overload test not necessary
 ---pagebreak--- NoC 123/32                        Official Journal of the European Communities                    9. 5. 83
     i Force
Fmax                                                                           Deflection and force
                                                                               for which the structure
                                                                               has absorbed the
                                                                               calculated energy
                                                                               required (1.1)
                                                                               Energy absorbed equal
                                                                               to 1,05 of energy
                                                                               required (1.2)
                                                                                *"   Deflection
                                                        0,95 D'           D'l
           1. Reference aF' corresponding to 0,95 D'
           1.1. Overload test necessary since aF' > 1,03 F'
           1.2. Overload test satisfactory since
                b F > 0,97 F and b F > 0,8 Fmax
                                                        Figure 10b
                                                  Force deflection curve
                                                  Overload test necessary
 ---pagebreak--- 9. 5. 83                          Official Journal of the European Communities                                    NoC 123/33
         Force
                                                                              Energy absorbed equal to energy
                                                                              required (1.1)
                                                                                      Energy absorbed equal to
                                                                                      1,05 of energy required
                                                                                      (1.2)
                                                                                                Energy absorbed equal
                                                                                               to 1,10 of energy
                                                                                               required (1.3)
                                                                                                           Energy absorbed
                                                                                                           equal to 1,15
                                                                                                           of energy
                                                                                                           required (1.4))
                                                                                                                   Energy absorbed
                                                                                                                   equal to 1,20
                                                                                                                   of energy
                                                                                                                   required (1.5)
                                                                                                                         Deflection
                                             0,95 D                                         D'4
                                                                   Deflection due to overload
             1. Reference aF' corresponding to 0,95 D'.
                1.1. Overload test necessary since aF' > 1,03 F'.
                1.2. Since bF' < 0,97 aF', overload test to be continued.
                1.3. Since cF' < 0,97 bF', overload test to be continued.
                1.4. Since dF' < 0,97 cF', overload test to be continued.
                1.5. Overload test satisfactory since eF' > 0,8 Fmax.
             Remark: If at any moment F falls below 0,8 Fmax, the structure will be refused.
                                                         Figure 10c
                                                  Force/deflection curve
                                               Overload test: to be continued
 ---pagebreak--- N o C 123/34                             Official Journal of the European Communities                                9. 5. 83
                                                             ANNEX V
                                                              MODEL
            REPORT RELATING TO THE EEC COMPONENT TYPE-APPROVAL TESTS OF A
            PROTECTION STRUCTURE (REAR-MOUNTED ROLLBAR, FRAME OR CAB) WITH
            REGARD TO ITS STRENGTH AS WELL AS TO THE STRENGTH OF ITS ATTACH-
                                                     MENT TO THE TRACTOR
                                     Protection structure
                 Make and type
                                              Tractor
                                                                                   Identification of test station
                 Make
                 Type and commercial description
                 Test method                             Dynamic/static (')
            EEC component type-approval No
             1.       Trade mark or name and type of protection structure
            2.         Name and address of manufacturer of tractor or protection structure
                       If applicable, name and address of tractor or protection structure manufacturer's author-
                       ized representative
            4.        Specifications of tractor on which the tests are carried out
            4.1.      Trade mark or name
            4.2.      Type and commercial description
            4.3.      Serial number
            4.4.      Mass of unballasted tractor with protection structure fitted, without driver                kg
            4.5.      Wheelbase/moment of inertia (')                                                  mm/kgm : (')
            4.6.      Tyre sizes:              front
                                               rear
            5.         Extension of EEC component type-approval to other tractor types
            5.1.      Trade mark or name
            ('<)   Delete where inapplicable.
 ---pagebreak--- 9. 5. 83                             Official Journal of the European Communities                             N o C 123/35
         5.2.     Type and commercial description
         5.3.     Mass of unballasted tractor, with protection structure fitted, without driver              kg
         5.4.     Wheelbase/moment of inertia (')                                                 mm/kgm : (')
         5.5.     Tyre sizes:             front
                                          rear
         6.       Specifications of protection structure
         6.1.     General arrangement drawing of both the protection structure and its attachment to the
                  tractor
         6.2.      Photographs from side and rear showing mounting details
         6.3.      Brief description of protection structure including type of construction, details of mount-
                  ing on the tractor, details of cladding, means of access and escape, details of interior pad-
                  ding, features to prevent continuous rolling and details of heating and ventilation
         6.4.      Dimensions
         6.4.1.    Height of roof members above the seat reference point                                   mm
         6.4.2.    Height of roof members above the tractor foot platform                                  mm
         6.4.3.    Interior width of the protection structure 900 mm above the seat reference point
                                                                                                            mm
         6.4.4.    Interior width of the protection structure at a point above the seat at the height of the
                   centre of the steering wheel                                                             mm
         6.4.5.    Distance from the centre of steering wheel to the right-hand side of roll-over protection
                   structure                                                                                mm
         6.4.6.    Distance from the centre of the steering wheel to the left-hand side of roll-over protection
                   structure                                                                                mm
          6.4.7.   Minimum distance from the steering wheel rim to the roll-over protection structure .. mm
          6.4.8.   Width of the doorways:
                   at the top                                                                               mm
                   in the middle                                                                            mm
                   at the bottom                                                                            mm
          6.4.9.   Height of the doorways:
                   above foot platform                                                                      mm
                   above highest mounting step                                                              mm
                   above lowest mounting step                       9.                                      mm
         (')   Delete where inapplicable.
 ---pagebreak--- N o C 123/36                           Official Journal of the European Communities                              9. 5. 83
           6.4.10. Overall height of the tractor with the protection structure             fitted           mm
           6.4.11. Overall width of the protection structure                                                mm
           6.4.12. Horizontal distance to the rear of the protection structure from the back of the seat at a
                    height of 900 mm above the seat reference point                                         mm
           6.5.     Details and quality of materials used, standards used
                    Main frame                                                        (material and dimensions)
                    Mountings                                                         (material and dimensions)
                    Cladding                                                          (material and dimensions)
                    Roof                                                              (material and dimensions)
                    Interior padding                                                   (material and dimensions)
                    Assembly and mounting bolts                                          (grade and dimensions)
            7.      Test results
            7.1.    Impact/load (') and crushing tests
                    Impact/load (') tests were made to the left/right-hand (') rear and to the right/left-
                    hand (') front and right/left-hand side (')• The reference mass used for calculating impact
                    energies/the load (') and crushing forces was                                             kg
                    The test requirements concerning fractures or cracks, maximum instantaneous deflection
                    and the zone of clearance were/were not (') satisfactorily fulfilled
            7.2.    Deflection measured after the tests
                    Permanent deflection:
                    rear:      left-hand                                                                     mm
                               right-hand                                                                    mm
                    front: left-hand                                                                         mm
                               right-hand                                                                    mm
                    side sideways: front                                                                     mm
                                        rear                                                                 mm
                    top downwards: front                                                                     mm
                                           rear                                                              mm
                    Difference between maximum momentary and residual deflection during sideways
                    impact test                                                                              mm
            8.      Report number
            9.      Report date
             10.    Signature                            *
            (')  Delete where inapplicable.
 ---pagebreak--- 9. 5. 83                         Official Journal of the European Communities                               N o C 123/37
                                                        ANNEX VI
                                                         MARKS
         The EEC component type-approval mark shall consist of:
         — a rectangle surrounding the lower-case letter V followed by the distinguishing letter(s) or
              number of the Member State which has granted the component type-approval:
                                     1       for Germany,
                                     2       for France,
                                     3       for Italy,
                                     4       for the Netherlands,
                                     6       for Belgium,
                                    11       for the United Kingdom
                                    13       for Luxembourg,
                                    18       for  Denmark,
                                 IRL         for  Ireland,
                                  GR         for Greece;
              the EEC component type-approval number which corresponds to the number of the EEC
              component type-approval certificate issued with regard to the strength of the type of protec-
              tion structure and its attachment to the tractor placed under and in the vicinity of the
              rectangle;
              the letters V or SV, depending on whether a dynamic or static test was conducted, followed
              by the number 1, indicating that this is a protection structure of the rear-mounted rollbar,
              frame or cab type intended for a narrow-track tractor in which the upper limit of the zone of
              clearance is 900 mm above the seat reference point.
                                    Example of EEC component type-approval mark
                                                                                            a^ 30 mm
                                                                           V3
                                                                   V6
                   e^
                                                                            ii
                                                                  t 7,
                                                                  T
                                                                             '1
          The protection structure bearing the EEC component type-approval mark shown above is a struc-
          ture of the rear-mounted, rollbar, frame or cab type which has been subjected to a dynamic test, is
          intended for a narrow-track tractor (VI) and for which EEC component type-approval was
          granted in France (e2) under the number 431.
 ---pagebreak--- No C 123/38                             Official Journal of the European Communities                                               9. 5. 83
                                                                         ANNEX VII
                                                                           MODEL
                                     EEC COMPONENT TYPE-APPROVAL CERTIFICATE
                                                                                                       Name of competent authority
          Notification concerning the granting, refusal, withdrawal or extension of EEC component type-
          approval with regard to the strength of a protection structure (rear-mounted rollbar, frame or cab)
                                           and to the strength of its attachment to the tractor
           EEC component type-approval No
                                                                  extension (')
           1.       Trade name or mark and type of protection structure
           2.       Name and address of manufacturer of protection structure
           3.       If applicable, name and address of authorized representative of manufacturer of protec-
                    tion structure
           4.       Trade mark or name, type and commercial description of tractor for which protection
                    structure is intended
           5.       Extension of EEC component type-approval for tractors of the following type(s) and
                    commercial descriptions
           5.1.     The mass of the unballated tractor, as defined in 1.4 of Annex II, exceeds/does not
                    exceed (:) the reference mass used for the test by more than 5 %.
           5.2.     The method of attachment and points of attachment are/are not (:) identical.
           5.3.     All the components likely to serve as supports for the protection structure are/are not (:)
                    identical.
           6.       Submitted for EEC component type-approval on
           7.       Test station
           8.        Date and number of the report of the test station
           9.        Date of granting/refusal/withdrawal of EEC component type-approval (:)
            10.      Date of granting/refusal/withdrawal                         of the extension of EEC component type-
                     approval O
            11.      Place
            12.      Date
            13.      The following documents, bearing the component type-approval number shown above,
                     are annexed to this certificate (e.g. report of the test station). These documents must be
                     sent to the competent authorities of the other Member States if they so request
            14.      Remarks, if any
            15.      Signature
           (')  If applicable, state whether this is the first, etc., extension of the original EEC component type-approval.
           (:)  Delete where inapplicable.
 ---pagebreak---                        Official Journal of the European Communities                                 N o C 123/39
                                            ANNEX     Vlll
                          CONDITIONS FOR EEC TYPE-APPROVAL
1.   The application for EEC type-approval of a tractor, with regard to the strength of a protec-
     tion structure and the strength of its attachment to the tractor shall be submitted by the trac-
     tor manufacturer or by his authorized respresentative.
2.   A tractor respresentative of the tractor type to be approved, on which a protection structure
     and its attachment, duly approved, are mounted shall be submitted to the technical services
     responsible for conducting the type-approval tests.
3.   The technical service responsible for conducting the type-approval tests shall check whether
     the approved type of protection structure, is intended to be mounted on the type of tractor
     for which the type-approval is requested. In particular, it shall ascertain whether the attach-
     ment of the protection structure corresponds to that which was tested when the EEC com-
     ponent type-approval was granted.
4.   The holder of the EEC type-approval may ask for its extension to other types of protection
     structures.
5.   The competent authorities shall grant such extension on the following conditions:
5.1. the new type of protection structure and its tractor attachment must have received EEC
     component type-approval;
5.2. the new type of protection structure must be designed to be mounted on the type of tractor
     for which the extension of the EEC type-approval is requested;
5.3. the attachment of the protection structure to the tractor must correspond to that which was
     tested when EEC component type-approval was granted.
6.   A certificate, of which a model is shown in Annex IX, shall be annexed to the EEC type-
     approval certificate for each type-approval or type-approval extension which has been
     granted or refused.
7.    If the application for EEC type-approval for a type of tractor is introduced at the same time
     as the request for EEC component type-approval for a type of protection structure intended
     to be mounted on the type of tractor for which EEC type-approval is requested, the checks
     laid down in 2 and 3 are not applicable.
 ---pagebreak--- N o C 123/40                              Official Journal of the European Communities                                                9.5.83
                                                                          ANNEX IX
                                                                            MODEL
                                                                                                        Name of competent authority
            ANNEX TO THE EEC TYPE-APPROVAL CERTIFICATE FOR A TRACTOR TYPE
            WITH REGARD TO THE STRENGTH OF PROTECTION STRUCTURES (REAR-
            MOUNTED ROLLBAR, FRAME OR CAB) AND THE STRENGTH OF THEIR
                                                    ATTACHMENT TO THE TRACTOR
           (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
                                                                                                                        extension (')
              1. Trade name or mark of tractor
             2. Tractor type and commercial description
             3. Name and address of tractor manufacturer
             4. If applicable, name and address of manufacturer's authorized representative
             5. Trade name or mark and type of protection structure
             6. Extension of EEC type-approval for the following type(s) of protection structure
             7. Tractor submitted for EEC type-approval on
              8. Technical service responsible for EEC type-approval conformity control
             9. Date of report issued by that service
            10. Number of report issued by that service
            11. EEC type-approval with regard to the strength of the protection structures and the strength
                 of their attachment to the tractor has been granted/refused (:)
            12. The extension of EEC type-approval with regard to the strength of the protection structures
                 and the strength of their attachment to the tractor has been granted/refused (:)
            13. Place
            14. Date
            15. Signature
           (')   If applicable, state whether this is the first, etc., extension of the original EEC type-approval.
           (:)   Delete where inapplicable.