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 
EUROPEAN COMMUNITIES, 
Having regard to the Treaty establishing the 
European Economic Community, and in particular 
Article 100 thereof, 
Having regard to the proposal from the 
Commission, 
Having regard to the opinion of the European 
Parliament, 
Having regard to the opinion of the Economic and 
Social Committee, 
Whereas Council Directive 74/150/EEC of 4 March 
1974 on the approximation of the laws of the Mem­
ber States relating to the type-approval of wheeled 
agricultural or forestry tractors ('), as amended by 
the Act of Accession of Greece, lays down that the 
necessary provisions for the implementation of the 
EEC type-approval procedure in respect of indivi­
dual tractor parts or characteristics should be speci­
fied in special Directives; whereas the provisions 
relating to roll-over protection structures and their 
attachments to tractors have been laid down by 
Council Directives 77/536/EEC (2) and 79/622/ 
EEC (3); whereas these two Directives cover respec­
tively dynamic and static testing procedures — 
either of which may be employed by manufacturers 
for the present — and relate to standard tractors, 
that is, tractors having a maximum ground clearance 
of 1 000 mm and a fixed or adjustable track width of 
(') OJNoL84, 28. 3. 1974, p. 10. 
(-) OJNoL220, 29. 8. 1977, p. 1. 
(3) OJ No LI 79, 17. 7. 1979, p. 1. one of the driving axles of not less than 1 150 mm 
and weighing between 1,5 and 4,5 tonnes in the case 
of tractors covered by the 'dynamic testing' Direc­
tive and not less than 800 kg in the case of tractors 
covered by the 'static testing' Directive; 
Whereas the tractors covered by this Directive have 
a maximum ground clearance of 600 mm, a mini­
mum track width of both axles of less than 
1 150 mm and a mass greater than 600 kg; whereas 
the roll-over protection structures of these tractors, 
which are used for specific activities, can be made 
subject to specific requirement or requirements 
other than those of Directives 77/536/EEC and 
79/622/EEC; 
Whereas the technical requirements with which such 
'narrow-track' tractors must comply pursuant to 
national laws relate inter alia to roll-over protection 
structures and to their attachment to the tractor; 
whereas those requirements differ from one Member 
State to another; whereas it is therefore necessary 
that all Member States adopt the same requirements 
either in addition to, or in place of, their existing 
rules in order, in particular, to allow the EEC type-
approval procedure which was the subject of Direc­
tive 74/150/EEC to be introduced in respect of 
each type of tractor; 
Whereas this Directive covers roll-over protection 
structures of the rear-mounted rollbar, frame or cab 
type having a zone of clearance whose upper limit is 
900 mm above the seat reference point in order to 
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 
clearance is characteristically reduced by the tractor 
silhouette and the advisability of not impeding 
NoC 123/2 Official Journal of the European Communities 9. 5. 83 
access to the driving position, and because of the 
need to retain these structures (fold-down or not) in 
view of their undoubted ease of use; 
Whereas a harmonized component type-approval 
proceduce for roll-over protection structures and 
their attachment to the tractor makes it possible for 
each Member State to check compliance with the 
common construction and testing requirements and 
to inform the other Member States of its findings by 
sending them copies of the component type-
approval certificate completed for each type of roll­
over protection structure and its attachment to the 
tractor; whereas the placing of an EEC component 
type-approval mark on all structures manufactured 
in conformity with the approved type obviates any 
need for technical checks on those structures in the 
other Member States; whereas common require­
ments concerning other elements and characteristics 
of the roll-over protection structure, in particular 
those concerning the dimensions, doors, safety 
glass, devices to prevent continuous roll-over if the 
tractor overturns, and protection of occupants, will 
be laid down at a later date; 
Whereas the harmonized requirements are intended 
principally to ensure safety on the road and at work 
throughout the Community; whereas, for this 
reason, it is necessary to introduce the obligation for 
tractors covered by this Directive to be fitted with 
roll-over protection structures; 
Whereas the approximation of the national laws 
relating to these tractors entails reciprocal recogni­
tion by Member States of the checks carried out by 
each of them on the basis of the common require­
ments, 
HAS ADOPTED THIS DIRECTIVE: 
Article 1 
This Directive shall apply to tractors, as defined in 
Article 1 of Directive 74/150/EEC, having the fol­
lowing characteristics: 
— ground clearance of not more than 600 mm 
beneath the front and rear axles, 
— minimum track width of both axles of less than 
1 150 mm, — mass of more than 600 kg corresponding to the 
unladen weight of the tractor as defined in 
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 
of the largest size recommended by the manu­
facturer. 
Article 2 
1. Each Member State shall grant EEC component 
type-approval for any type of roll-over protection 
structure and its tractor attachment which satisfies 
the construction and testing requirements laid down 
in Annexes I to IV. 
2. A Member State which has granted EEC com­
ponent type-approval shall take the measures 
required to verify, in so far as is necessary and if 
need be in cooperation with the competent 
authorities in the other Member States, that produc­
tion models conform to the approved type. Such 
verification shall be limited to spot checks. 
A rticle 3 
Member States shall, for each type of roll-over pro­
tection structure and its tractor attachment which 
they approve pursuant to Article 1, issue to the 
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. 
Member States shall take all appropriate measures 
to prevent the use of marks liable to create confu­
sion between roll-over protection structures which 
have been component type-approved pursuant to 
Article 1 and other devices. 
Article 4 
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 
the EEC component type-approval mark. 
2. Nevertheless, a Member State may prohibit the 
placing on the market of roll-over protection struc­
tures bearing the EEC component type-approval 
mark which consistently fail to conform to the 
approved type. 
That State shall forthwith inform the other Member 
States and the Commission of the measures taken, 
specifying the reasons for its decision. 
9. 5. 83 Official Journal of the European Communities NoC 123/3 
Article 5 
The competent authorities of each Member State 
shall, within one month, send to the competent 
authorities of the other Member States copies of the 
component type-approval certificates, an example 
of which is given in Annex VII, completed for each 
type of roll-over protection structure which they 
approve or refuse to approve. 
Article 6 
1. If the Member State which has granted EEC 
component type-approval finds that a number of 
roll-over protection structures bearing the same 
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 
models conform to the approved type. The compe­
tent authorities of that State shall advise those of the 
other Member States of the measures taken which 
may, if necessary, where there is serious and 
repeated failure to conform, extend to withdrawal of 
EEC component type-approval. The said authorities 
shall take the same measures if they are informed by 
the competent authorities of another Member State 
of such failure to conform. 
2. The competent authorities of the Member States 
shall, within one month, inform each other of any 
withdrawal of EEC component type-approval and 
of the reasons for any such measure. 
Article 7 
Any decision taken pursuant to the provisions 
adopted in implementation of this Directive to 
refuse or withdraw component type-approval for 
roll-over protection structures and their tractor 
attachments, or to prohibit their placing on the mar­
ket or their use, shall set out in detail the reasons on 
which it is based. Such decisions shall be notified to 
the party concerned, who shall at the same time be 
informed of the remedies available to him under the 
laws in force in the Member States and of the time 
limits allowed for the exercise of such remedies. 
Article 8 
No Member State may refuse to grant EEC type-
approval or national type-approval in respect of a tractor on grounds relating to the roll-over protec­
tion structure or its tractor attachment if these bear 
the EEC component type-approval mark and if the 
requirements laid down in Annex VIII have been 
satisfied. 
Article 9 
1. No Member State may refuse or prohibit the 
sale, registration, entry into service or use of any 
tractor on grounds relating to the roll-over protec­
tion structure and its tractor attachment if these bear 
the EEC component type-approval mark and if the 
requirements laid down in Annex VIII have been 
met. 
Article 10 
1. Any tractor to which Article 1 refers must be fit­
ted with a roll-over protection structure. 
2. This structure must comply with the require­
ments laid down in Annexes I to IV to this Direc­
tive, or in Directives 77/536/EEC or 79/622/EEC. 
Article 11 
Any amendments necessary in order to adapt the 
requirements of the Annexes to this Directive so as 
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 12 
1. Member States shall bring into force the provi­
sions necessary in order to comply with this Direc­
tive not later than 1 January 1985 and shall forth­
with inform the Commission thereof. 
2. Member States shall ensure that the texts of the 
main provisions of national law which they adopt in 
the field covered by this Directive are communi­
cated to the Commission. 
Article 13 
This Directive is addressed to the Member States. 
NoC 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 
9. 5. 83 Official Journal of the European Communities NoC 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: 
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. 
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). 
NoC 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. 
9. 5. 83 Official Journal of the European Communities NoC 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. 
NoC 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. 
9. 5. 83 Official Journal of the European Communities NoC 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. 
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. 
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 10s 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 
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 
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. 
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. 
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^CiD^l^CH, 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, 
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. 
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. 
NoC 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. 
^^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^cr^^under 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 
NoC 123/22 Official Journal of the European Communities 9. 5. 83 
ANNEX IV 
FIGURES 
B, A: B0 
X, 
E^ V — ^ 
'L, 
N, 
Figure 1 
Zone of clearance 
3A rear perspective view 
9. 5. 83 Official Journal of the European Communities No C 123/23 
Figure 2a 
Zone of clearance 
Cross-section through the reference plane 
No C 123/24 Official Journal of the European Communities 9. 5. 83 
1 
8 _ 
o 1400 
1 
Figure 2b 
Zone of clearance 
Side view Figure 2c 
Zone of clearance 
Rear view 
ZONE OF CLEARANCE 
Figure 2d 
Zone of clearance 
Top view Figure 2e 
Lower part of the zone of clearance 
3A rear view 
9. 5 83 Official Journal of the European Communities NoC 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 
NoC 123/26 Official Journal of the European Communities 9. 5. 83 
Impact face 660-700 
Dimensions in mm 
Pin marking position of centre of gravity 
Figure 4 
Pendulum block and its suspending chains or wire ropes 
^.^ 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 
NoC 123/28 Official Journal of the European Communities 9. 5. 83 
Adjustable 
lashing Wedge fixed 
behind wheels 
after lashing [ 
Centre of gravity 
of weight passing 
through the point 
of impact 
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 
Bevelled end between 
prop and block Rounded to follow the shape 
of the rim 
Figure 7 
Impact from side Two wire ropes to exert a 
downward force on the axle 
on the impact side 
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 21 
2 
£L 
o I 
3" 
n> m c 
3 
1 
3 
o 
o 
3 
3 
c 
3 
o 
o 
NoC 123/30 Official Journal of the European Communities 9. 5. 83 
Supports under front and rear axles Universal 
pin joint 
Double 
acting 
hydraulic 
cylinder 
Universal 
pin joint 
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. 
I. Permanent deflection 
' i 2. Elastic deflection 
3. Total deflection (permanent + elastic deflection) 
Figure 9 Horizontal rod 
attached to the 
structure 
Vertical support 
attached to the tractor 
chassis or 
floor of the 
protection structure 
Example of apparatus for measuring elastic deflection 
9. 5. 83 Official Journal of the European Communities NoC 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 
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) 
0,95 D' D'l *" Deflection 
1. Reference aF' corresponding to 0,95 D' 
1.1. Overload test necessary since aF' > 1,03 F' 
1.2. Overload test satisfactory since 
bF > 0,97 F and bF > 0,8 Fmax 
Figure 10b 
Force deflection curve 
Overload test necessary 
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 
NoC 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 
Make 
Type and commercial description 
Test method Dynamic/static (') Identification of test station 
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. 
9. 5. 83 Official Journal of the European Communities NoC 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. 
NoC 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. 
9. 5. 83 Official Journal of the European Communities NoC 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 
2 
3 
4 
6 
11 
13 
18 
IRL 
GR for Germany, 
for France, 
for Italy, 
for the Netherlands, 
for Belgium, 
for the United Kingdom 
for Luxembourg, 
for Denmark, 
for Ireland, 
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 , T 7 
'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. 
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. 
Official Journal of the European Communities NoC 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. 
NoC 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.