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Document 01978L0764-20130701

Consolidated text: Council Directive of 25 July 1978 on the approximation of the laws of the Member States relating to the driver's seat on wheeled agricultural or forestry tractors (78/764/EEC)

ELI: http://data.europa.eu/eli/dir/1978/764/2013-07-01

1978L0764 — EN — 01.07.2013 — 012.001


This document is meant purely as a documentation tool and the institutions do not assume any liability for its contents

►B

COUNCIL DIRECTIVE

of 25 July 1978

on the approximation of the laws of the Member States relating to the driver's seat on wheeled agricultural or forestry tractors

(78/764/EEC)

(OJ L 255, 18.9.1978, p.1)

Amended by:

 

 

Official Journal

  No

page

date

►M1

COUNCIL DIRECTIVE 82/890/EEC of 17 December 1982

  L 378

45

31.12.1982

►M2

COMMISSION DIRECTIVE 83/190/EEC 28 March 1983

  L 109

13

26.4.1983

►M3

COUNCIL DIRECTIVE 87/354/EEC of 25 June 1987

  L 192

43

11.7.1987

►M4

COMMISSION DIRECTIVE 88/465/EEC of 30 June 1988

  L 228

31

17.8.1988

►M5

DIRECTIVE 97/54/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 23 September 1997

  L 277

24

10.10.1997

►M6

COMMISSION DIRECTIVE 1999/57/EC Text with EEA relevance of 7 June 1999

  L 148

35

15.6.1999

►M7

COUNCIL DIRECTIVE 2006/96/EC of 20 November 2006

  L 363

81

20.12.2006

►M8

COUNCIL DIRECTIVE 2013/15/EU of 13 May 2013

  L 158

172

10.6.2013


Amended by:

 A1

Act of Accession of Greece

  L 291

17

19.11.1979

►A2

Act of Accession of Spain and Portugal

  L 302

23

15.11.1985

 A3

Act of Accession of Austria, Sweden and Finland

  C 241

21

29.8.1994

 

  L 001

1

..

►A4

Act concerning the conditions of accession of the Czech Republic, the Republic of Estonia, the Republic of Cyprus, the Republic of Latvia, the Republic of Lithuania, the Republic of Hungary, the Republic of Malta, the Republic of Poland, the Republic of Slovenia and the Slovak Republic and the adjustments to the Treaties on which the European Union is founded

  L 236

33

23.9.2003


Corrected by:

►C1

Corrigendum, OJ L 112, 24.4.2008, p. 32  (1983/190)




▼B

COUNCIL DIRECTIVE

of 25 July 1978

on the approximation of the laws of the Member States relating to the driver's seat on wheeled agricultural or forestry tractors

(78/764/EEC)



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 ( 1 ),

Having regard to the opinion of the Economic and Social Committee ( 2 ),

Whereas the technical requirements which tractors must satisfy pursuant to national laws relate inter alia to the driver's seat;

Whereas the 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 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 ( 3 ) to be introduced in respect of each type of tractor;

Whereas the rules relating to driver's seats cover not only the requirements for their installation on tractors but also the construction of the seats; whereas a harmonized component type-approval procedure 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 a copy of the component type-approval certificate completed for each type of driver's seat; whereas the placing of an EEC component type-approval mark on all driver's seats manufactured in conformity with the approved type obviates any need for technical checks on those driver's seats in the other Member States,

HAS ADOPTED THIS DIRECTIVE:



Article 1

1.  Each Member State shall grant EEC component type-approval for any type of driver's seat which satisfies the construction and testing requirements laid down in Annexes I and II.

2.  The Member State which has granted EEC component type-approval shall take the measures required in order to verify, in so far as is necessary and if need be in cooperation with the competent authorities in the other Member States, that production models conform to the approved type. Such verification shall be limited to spot checks.

Article 2

Member States shall, for each type of driver's seat which they approve pursuant to Article 1, issue to the manufacturer or to his authorized representative, an EEC component type-approval mark conforming to the model shown in 3.5 of Annex II.

Member States shall take all appropriate measures to prevent the use of marks liable to create confusion between driver's seats which have been granted component type-approval pursuant to Article 1 and other devices.

Article 3

1.  No Member State may prohibit the placing on the market of driver's seats 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 driver's seats 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.

Article 4

The competent authorities of each Member State shall within one month send to the competent authorities of the other Member States a copy of the component type-approval certificates, an example of which is given in Annex III, completed for each type of driver's seat which they approve or refuse to approve.

Article 5

1.  If the Member State which has granted EEC component type-approval finds that a number of driver's seats bearing the same EEC component type-approval mark do not conform to the type which it has approved, it shall take the necessary measures to ensure that production models conform to the approved type. The competent 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 inform each other within one month of any withdrawal of EEC component type-approval, and of the reasons for such a measure.

Article 6

Any decision taken pursuant to the provisions adopted in implementation of this Directive to refuse or withdraw EEC component type-approval for a driver's seat or to prohibit its placing on the market or 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 7

No Member State may refuse to grant EEC type-approval or national type-approval for a tractor on grounds relating to its driver's seat if this bears the EEC component type-approval mark and is fitted in accordance with the requirements laid down in Annex IV.

Article 8

No Member State may refuse or prohibit the sale, registration, entry into service or use of any tractor on grounds relating to the driver's seat if this bears the EEC component type-approval mark and is fitted in accordance with the requirements set out in Annex IV.

Article 9

1.  For the purpose of this Directive, ‘agricultural or forestry tractor’ means any motor vehicle, fitted with wheels or endless tracks, having at least two axles, the main function of which lies in its tractive power and which is specially designed to tow, push, carry or power certain tools, machinery or trailers intended for agricultural or forestry use. It may be equipped to carry a load and passengers.

▼M1

2.  This Directive shall apply only to tractors defined in paragraph I which are equipped with pneumatic tyres and have at least two axles and a maximum design speed of between 6 and ►M5  40 km/h ◄ .

▼B

Article 10

Any amendments necessary to adjust the requirements of the Annexes to this Directive 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 11

1.  Member States shall bring into force the provisions necessary in order to comply with this Directive within 18 months of its notification and shall forthwith 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 communicated to the Commission.

Article 12

This Directive is addressed to the Member States.




ANNEX I

DEFINITIONS

1.   Driver's seat

‘Driver's seat’ means that seat capable of accommodating one person only, provided for the use of the driver when driving the tractor.

2.   Seat surface

‘Seat surface’ means the almost horizontal area of the seat which supports the driver when seated.

3.   Backrest

‘Backrest’ means the almost vertical area of the seat supporting the driver's back when seated.

4.   Lateral seat supports

‘Lateral seat supports’ means the devices or forms of the seat surface which prevent the driver from sliding sideways.

4.1.   Seat armrests

‘Seat armrests’ means the devices on either side of the seat which support the driver's arms when he is seated.

5.   Seat reference point (S)

‘Seat reference point (S)’ means the point of intersection in the median longitudinal plane of the seat between the tangential plane at the base of the padded backrest and a horizontal plane. This horizontal plane intersects the lower surface of the seat 150 mm in front of the seat reference point (S) (see Appendix 1 to Annex II).

6.   Depth of the seat surface

‘Depth of the seat surface’ means the horizontal distance between the seat reference point (S) and the front edge of the seat surface.

7.   Width of the seat surface

‘Width of the seat surface’ means the horizontal distance between the outside edges of the seat surface measured in a plane perpendicular to the median plane of the seat.

8.   Load adjustment range

‘Load adjustment range’ means the range between the two loads corresponding to the mean positions in the suspension system curves plotted for the heaviest and lightest driver.

▼M2

9.   Suspension travel

‘Suspension travel’ means the vertical distance between the highest position and the position at a given moment of a point situated on the seat surface 200 mm in front of the seat reference point in the median longitudinal plane.

▼B

10.   Vibration

‘Vibration’ means the vertical movement up and down of the driver's seat.

11.   Vibration acceleration (a)

‘Vibration acceleration (a)’ means the second differential of the vibration displacement with respect to time.

12.   Rms value of the acceleration (aeff)

‘Rms value of the acceleration (aeff)’ means the square root of the mean square of the accelerations.

▼M2 —————

▼B

►M2  13. ◄    Weighted vibration acceleration (aw)

‘Weighted vibration acceleration (aw)’ means the weighted vibration acceleration determined with the help of a weighting filter in accordance with 2.5.3.3.5.2 of Annex II.

▼M2

awS = rms value of the weighted seat vibration acceleration measured during a bench test or a standard roadway test;

awB = rms value of the weighted vibration acceleration measured at the seat attachment during a bench test;

image

= reference rms value of the weighted vibration acceleration measured at the seat attachment;

image

= corrected rms value of the weighted seat vibration acceleration measured during a bench test;

image

= rms value of the weighted vibration acceleration measured at the seat attachment during a standard roadway test.

▼B

►M2  14. ◄    Vibration ratio

‘Vibration ratio’ means the ratio of the weighted vibration acceleration measured on the driver's seat to that measured at the seat attachment in accordance with 2.5.3.3.2 of Annex II.

►M2  15. ◄    Vibration class

‘Vibration class’ means the class or group of tractors which show the same vibration characteristics.

▼M2

16.   Category A tractor

‘Category A tractor’ means a tractor which can be assigned to a given vibration class by reason of similar design features.

▼M4

16.1.

The characteristics of these tractors are as follows:

Number of axles: two.

Suspension: unsuspended rear axle.

16.2.

Category A tractors shall be divided up into three classes:

Class I : tractors having an unladen mass of up to 3 600.

Class II : tractors having an unladen mass of 3 600 — 6 500 kg.

Class III : tractors having an unladen mass of more than 6 500 kg.

▼M2 —————

▼M2

17.   Category B tractor

‘Category B tractor’ means a tractor which cannot be assigned to a vibration class in Category A.

▼B

►M2  18. ◄    Seats of the same type

‘Seats of the same type’ means seats which do not differ in any essential respects; the only aspects in which the seats may differ being as follows:

►M2  18.1. ◄

dimensions;

►M2  18.2. ◄

position and inclination of the backrest;

►M2  18.3. ◄

inclination of the seat surface;

►M2  18.4. ◄

longitudinal and vertical adjustment of the seat.




ANNEX II

CONSTRUCTION AND TESTING REQUIREMENTS — EEC COMPONENT TYPE-APPROVAL AND MARKING REQUIREMENTS

1.   GENERAL REQUIREMENTS

1.1.

The driver's seat must be designed to ensure a comfortable position for the driver when controlling and manoeuvring the tractor, and to afford him the utmost protection as regards health and safety.

1.2.

The seat must be adjustable in the longitudinal direction and in the height without the use of a tool.

1.3.

The seat must be designed to reduce shocks and vibration. It must therefore be well sprung, have good vibration absorption and provide adequate support at the rear and sides.

The lateral support is considered adequate if the seat is designed to prevent the driver's body from slipping sideways.

1.3.1.

The seat must be adjustable for persons of different mass. Any adjustment necessary in order to comply with this requirement, must be carried out without the use of tools.

1.4.

The seat surface, the backrest, the lateral supports and, where fitted, the removable, folding or fixed armrests, must be padded.

1.5.

The seat reference point (S) must be calculated in the manner specified in Appendix 1 to Annex II.

1.6.

Save as otherwise provided, the measurements and tolerances must comply with the following requirements:

1.6.1.

the measurements given must be expressed in whole units, if necessary rounded off to the nearest whole number of units;

1.6.2.

the instruments used for making measurements must enable the measured value to be rounded off to the nearest whole unit and must be accurate within the following tolerance limits:

 for length: ± 0·5%,

 for angle measurements: ± 1°,

 for determination of the mass of the tractor: ±20 kg,

 for measurement of tyre pressure:  ►M2  ± 0,1 bar ◄ ;

1.6.3.

for all data relating to dimensions, a tolerance of ± 5% is allowed.

1.7.

The seat must undergo the following tests, carried out on the same seat and in the order indicated below:

1.7.1.

determination of the suspension characteristics and the range of adjustment to the driver's mass;

1.7.2.

determination of lateral stability;

▼M2

1.7.3.

Determination of vertical vibration characteristics.

▼M2

1.7.4.

Determination of the damping characteristics in the resonance range.

▼B

1.8.

If the seat is manufactured so that it can revolve about a vertical axis then tests are carried out with the seat facing the forward position, ►M2  ————— ◄ locked in a position parallel with the median longitudinal plane of the tractor.

1.9.

The seat undergoing the above tests must possess the same characteristics with respect to construction and fittings as the seats in series production.

1.10.

Before the tests are carried out, the seat must have been run in by the manufacturer.

1.11.

A test report, which confirms that the seat has completed all the specified tests without damage and which includes details of the seat vibration characteristics, must be prepared by the test laboratory.

1.12.

Seats tested for Class I tractors are suitable only for tractors of that class, whereas seats tested for Class II tractors are suitable for Class I or Class II tractors ►M4  and seats tested for class III tractors are suitable for class II and III tractors ◄ .

2.   SPECIAL REQUIREMENTS

2.1.   Seat surface dimensions

2.1.1.

The depth of the seat surface, measured parallel to and at a distance of 150 mm from the median longitudinal plane of the seat, must be 400 ± 50 mm (see figure below).

2.1.2.

The width of the seat surface, measured perpendicular to the median plane of the seat, 150 mm in front of the seat reference point (S) and at not more than 80 mm above that point, must be at least 450 mm (see figure below).

▼M2

2.1.3.

The depth and width of the surface of seats intended for tractors in which the minimum rear-wheel track width does not exceed 1 150 mm may be reduced to not less than 300 and 400 mm respectively if the design of the tractor prevents compliance with the requirements of Items 2.1.1 and 2.1.2.

▼B

2.2.   Position and inclination of the backrest

2.2.1.

The upper edge of the backrest of the seat must be at least 260 mm above the seat reference point (S) (see figure below).

2.2.2.

The backrest must have an inclination of 10 ± 5° (see figure below).

2.3.   Inclination of the seat surface

2.3.1.

The inclination towards the rear (see angle α in the figure below) of the surface of the loaded cushion must be 3 to 12° in relation to the horizontal, measured with the loading device in accordance with Appendix 1.

2.4.   Seat adjustment (see figure below)

▼M2

2.4.1.

The seat must be adjustable in the longitudinal direction over a minimum distance of:

 150 mm for tractors with a minimum rear-wheel track width of more than 1 150 mm,

 60 mm for tractors with a minimum rear-wheel track width of 1 150 mm or less.

2.4.2.

The seat must be adjustable in the vertical direction over a minimum distance of:

 60 mm for tractors with a minimum rear-wheel track width of more than 1 150 mm,

 30 mm for tractors with a minimum rear-wheel track width of 1 150 mm or less.

▼B

image

2.5.   Seat tests

▼M2

2.5.1.   Determination of the suspension characteristics and the range of adjustment to the driver's mass

2.5.1.1.

The suspension characteristics are determined by a static test. The range of adjustment to the driver's mass is calculated from the suspension characteristics. These calculations are not necessary in the case of seats that cannot be manually adjusted to the driver's mass.

▼B

2.5.1.2.

The seat is mounted on a test stand or on a tractor and a load applied to it, either directly or by means of a special device; this load must not differ by more than 5 N from the nominal load. ►M2  The measuring error for the suspension travel shall not exceed ± 1 mm. ◄ The load must be applied in accordance with the procedure laid down in section 3 of Appendix 1.

▼M2

2.5.1.3.

A complete characteristic curve representing the deflection of the suspension system must be plotted from zero load to maximum load, and back to zero. The load graduations at which the suspension travel is measured must not exceed 100 N; at least eight measurement points must be plotted at approximately equal intervals in the suspension travel. The point taken as the maximum load should be either that at which no further suspension travel can be measured, or a load of 1 500 N. After each application or removal of the load, the suspension travel must be measured 200 mm in front of the seat reference point in the median longitudinal plane of the seat surface. After application or removal of the load, the seat must be allowed to return to its at-rest position.

2.5.1.4.

In the case of seats with a mass adjustment scale, the characteristic curves representing the deflection of the suspension system are plotted at mass adjustments for drivers having a mass of 50 and 120 kg. In the case of seats without a mass adjustment scale and with adjustment stops, measurements are taken at the lowest and the highest mass adjustment. In the case of seats without a mass adjustment scale or adjustment stops, the adjustment must be so selected that:

2.5.1.4.1.

for the lower mass adjustment limit, the seat just returns to the top of the suspension travel when the load is removed, and

2.5.1.4.2.

for the upper mass adjustment limit, the load of 1 500 N depresses the seat to the lowest limit of the suspension travel.

▼M2 —————

▼B

2.5.1.5.

The mean position of the suspension system is the position which the seat assumes when it is depressed by half the full travel of the suspension system.

2.5.1.6.

Since the characteristic curves of the suspension system are generally hysteresis loops, the load ►M2   ►C1  in the mean position of the suspension system ◄  ◄ must be determined by drawing a centre line through the loop (see section 8 of Annex I, and sections A and B of Appendix 2 to Annex II).

▼M2

2.5.1.7.

To determine the limits of the adjustment range as a function of the driver's mass, the vertical forces determined in accordance with Item 2.5.1.6 for points A and B (see Appendix 2 to this Annex) must be multiplied by the scale factor 0,13 kg/N.

2.5.2.   Determination of lateral stability

2.5.2.1.

The seat must be set for the upper limit of the weight adjustment and connected to the test stand or to the tractor in such a way that its base plate rests on a rigid plate (test stand) not smaller than the base plate itself.

▼B

2.5.2.2.

A test load of 1 000 N is applied to the surface or cushion of the seat. The point of application must lie 200 mm in front of the seat reference point (S) and alternately on the two sides 150 mm from the plane of symmetry through the seat.

2.5.2.3.

During application of the load, the variation in the lateral angle of inclination of the seat surface is measured in the end settings for horizontal and vertical seat adjustment. The permanent deformation close to the point of application of the load is not to be taken into consideration.

▼M2

2.5.3.   Determination of the vertical vibration characteristics

▼B

The seat vibration is determined by tests on a test stand and/or a standard roadway depending on whether the seat is intended for a class (or classes) of Category A tractor or for a Category B tractor.

2.5.3.1.   Testing on the test stand

▼M2

2.5.3.1.1.

The test stand must simulate the vertical vibrations at the point of attachment of the driver's seat. The vibrations are generated by means of an electro-hydraulic device. The set values to be used are either those specified in Appendices ►M4  4, 5a and 5b ◄ to Annex II for the class of tractor in question or the double-integrated acceleration signals recorded at the seat attachment of a Category B tractor moving at a speed of 12 ± 0,5 km/h on a standard roadway as defined in Item 2.5.3.2.1. To generate the vibrations, an uninterrupted double run of the set values must be used.

The transition from the end of the sequence of acceleration signals recorded on the standard roadway in the first run to the start of the second run must be smooth and jolt-free. The measurements must not be made during the first run of the set values or of the acceleration signals. More values than the 700 laid down in Appendices ►M4  4, 5a and 5b ◄ to Annex II may be used if these values were calculated, for example, with a cubic Spline function from the original 700 values.

▼B

2.5.3.1.2.

Besides an attachment for the test seat, the platform must contain a steering wheel and footrest. Its configuration must be as shown in Appendix 6.

▼M2

2.5.3.1.3.

The test stand must have a high degree of flexural and torsional rigidity and its bearings and guides must have no more than the technically necessary clearance. If the platform is carried on an oscillating arm, the dimension R must be not less than 2 000 mm (see Appendix 6). The magnitude of the vibration ratio at frequencies between 0,5 and 5,0 Hz shall be within the range 1,00 ± 0,05, measured at intervals not exceeding 0,5 Hz. The phase shift shall not vary by more than 20° throughout the same frequency range.

▼B

2.5.3.2.   Testing on a standard roadway

▼M2

2.5.3.2.1.

The roadway consists of two parallel strips spaced according to the wheel track of the tractor. Both strips must be made of a rigid material, such as wood or concrete, and be formed either of blocks set in a base structure or of a continuous smooth surface. The longitudinal profile of each track strip is defined by the ordinates of elevation in relation to a base level; these ordinates are shown in the tables in Appendix 3. With regard to the roadway, the elevation is defined at intervals of 16 cm along each strip.

The roadway must be firmly set in the ground and the distance between the strips must deviate only slightly over its entire length; the tractor's wheels must be fully supported at all times. Where the strips are formed of blocks, these must be 6 to 8 cm thick, with a distance of 16 cm between the centres of the blocks. The length of the standard roadway shall be 100 m.

The measurements must begin as soon as the axis of the rear axle of the tractor is perpendicular to point D = 0 on the roadway, and end as soon as the axis of the front axle of the tractor is perpendicular to point D = 100 of the test roadway (see the table in Appendix 3 to this Annex).

2.5.3.2.2.

Measurements shall be taken at a speed of 12 ± 0,5 km/h.

The prescribed speed must be maintained without the use of brakes. The vibrations must be measured on the seat and at the point where the seat is attached to the tractor, with a light and a heavy driver.

The speed of 12 km/h must be reached after a run-up track has been traversed. The surface of this run-up track must be flat and must join the standard roadway without any change in level.

▼B

2.5.3.2.3.

The seat must be set for the driver's mass in accordance with the manufacturer's instructions.

2.5.3.2.4.

The tractor must be fitted with a protective frame and/or cab unless of a type for which this equipment is not required. It must not carry any ancillary equipment. Moreover, there must be no ballast on the wheels or framework, and no fluid in the tyres.

2.5.3.2.5.

The tyres used during the test must have the standard dimensions and ply-rating, as specified in the manufacturer's instructions. The depth of the tread must not be less than 65 % of the depth of a new tread.

2.5.3.2.6.

The side-walls of the tyres must not be damaged. The pressure of the tyre must correspond to the arithmetical mean of the reference pressures recommended by the tyre manufacturer. The wheel track must correspond to that used under normal working conditions for the tractor model on which the seat is fitted.

2.5.3.2.7.

The measurements at the point of seat attachment and on the seat itself must be made during the same run.

For measuring and recording the vibrations, an accelerometer, a measuring amplifier and a magnetic tape recorder or direct-reading vibration meter shall be used. The specifications for these instruments are as laid down in 2.5.3.3.2 to 2.5.3.3.6.

2.5.3.3.   Specifications for tests on roadway and test stand

▼M2

2.5.3.3.1.

Driver's mass

The tests must be carried out with two drivers: one with a total mass of 59 ± 1 kg, of which not more than 5 kg may be carried in a weighting belt around the body; the other with a mass of 98 ± 5 kg with a maximum mass of 8 kg in the weighting belt.

2.5.3.3.2.

Position of the accelerometer

To measure the vibrations transmitted to the driver, an accelerometer is fixed on a flat plate with a diameter of 250 ± 50 mm, the central part of which must be rigid up to a diameter of 75 mm and must include a rigid device to protect the accelerometer. This plate must be placed in the middle of the seat surface between the seat and the driver and have a non-slip surface.

To measure the vibrations at the seat attachment, an accelerometer must be fixed near to this attachment at a point not more than 100 mm from the median longitudinal plane of the tractor and not outside the vertical projection of the seat surface on the tractor.

▼B

2.5.3.3.3.

Measurement of vibration acceleration

The accelerometer and the associated amplifying and transmitting equipment must respond to vibrations with an r.m.s. value of 0·05 m/s2, and be capable of measuring vibrations with an r.m.s. value of 5 m/s2 and a crest factor (ratio of peak to r.m.s. value) of 3 without distortion and with a maximum error of ± 2·5 % over the range 1 to 80  ►M2  Hz ◄ .

2.5.3.3.4.

Magnetic tape recorder

If a tape recorder is used, it must have a maximum reproduction error of ± 3·5 % in a frequency range of 1 to 80 Hz, including change of tape speed during replay for analysis.

2.5.3.3.5.

Vibration meter

2.5.3.3.5.1.

Vibrations of more than 10 Hz may be disregarded. It is therefore permissible to connect upstream of the measuring instrument a low-pass filter with a cut-out frequency of about 10 Hz and an attenuation of 12 dB per octave.

2.5.3.3.5.2.

This instrument must incorporate an electronic weighting filter between the sensor and the integrator device. The filter must correspond to the curve shown in Appendix 8 and the margin of error must be ± 0·5 dB in the 2 to 4 Hz frequency band and ± 2 dB for the other frequencies.

2.5.3.3.5.3.

The electronic measuring device must be capable of indicating either:

 the integral (I) of the square of the weighted vibration acceleration (aw) for a test time (T)

 

image

 or the square root of that integral

 or directly the r.m.s. value of the weighted vibration acceleration (aweff )

 

image

▼M2

The inaccuracy of the entire system for measuring the rms value of the acceleration must not exceed ± 5% of the measured value.

▼B

2.5.3.3.6.

Calibration

All instruments must be regularly calibrated.

2.5.3.3.7.

Evaluation of vibration tests

▼M2

2.5.3.3.7.1.

During each test, the weighted vibration acceleration for the whole test time must be determined with the vibration meter specified in Item 2.5.3.3.5.

2.5.3.3.7.2.

The test report must give the arithmetic mean value of the rms values of the weighted seat vibration acceleration (awS) for both the light driver and the heavy driver. The test report must also give the ratio of the arithmetic mean of the rms values of the weighted vibration acceleration measured on the seat (awS) to the arithmetic mean of the rms values of the weighted vibration acceleration measured at the seat attachment (awB). This ratio shall be given to two decimal places.

2.5.3.3.7.3.

The ambient temperature during the vibration test must be measured and shown in the report.

2.5.4.   Vibration test for tractor seats in accordance with their intended use

▼B

2.5.4.1.

A seat intended for use on a class (or classes) of Category A tractors must be tested on a vibration stand using the appropriate set value signals.

2.5.4.2.

A seat intended for use on a type of Category B tractor must be tested on a standard roadway with a tractor of that type. However, a simulation test may also be carried out using a set value signal corresponding to the acceleration curve which was determined during the standard roadway test with the type of tractor for which the seat is intended.

2.5.4.3.

A seat intended for use only on a particular type of Category A tractor may also be tested in accordance with the requirements of 2.5.4.2. In this case, component type-approval will be granted only for the type of tractor for which the test seat is intended.

▼M2

2.5.5.   Procedure used for determining the weighted vibration acceleration of seats intended for Category A tractors

▼M2 —————

▼M2

2.5.5.1.

The test on the vibration test stand shall be carried out in accordance with Item 2.5.3.1. the value awB actually occurring at the seat attachment during measurement must be determined. In the case of deviations from the reference value:

▼M4

a*wB = 2,05 m/s2 for class I, category A tractors.

a*wB = 1,5 m/s2 for class II, category A tractors.

a*wB = 1,3 m/s2 for class III, category A tractors.

▼M2

The acceleration awS measured at the driver's seat must be corrected in accordance with the following equation:

image

▼M4

2.5.5.2.

For each of the two drivers provided for in point 2.5.3.3.1, the weighted acceleration of the vibratory movement shall be measured at the seat for 28 seconds in the case of classes I and III, and for 31 seconds in the case of class II. The measurement must begin at the set value signal corresponding to t = 0 seconds and end at the set value signal corresponding to t = 28 or 31 seconds (see table in Appendices 4, 5a and 5b of this Annex). At least two test runs must be carried out. The measured values must not deviate from the arithmetical mean by more than ± 5 %. Each complete set point sequence must be reproduced in 28 or 31 ± 0,5 s.

▼M2

2.5.6.   Procedure used for determining the weighted vibration acceleration of seats intended for Category B tractors

2.5.6.1.

In accordance with the requirements of Item 2.5.4.2, the seat vibration tests are not applicable to a class of tractors, but only to each tractor type for which the seat is intended.

2.5.6.2.

The standard roadway test must be carried out in accordance with the requirements of Items 2.5.3.2 and 2.5.3.3. The vibration acceleration measured on the driver's seat (awS) need not be corrected. At least two test runs must be carried out on the standard roadway. The measured values must not deviate from the arithmetic mean by more than ± 10%.

2.5.6.3.

If a bench test is conducted, it must be carried out in association with a standard roadway test pursuant to the requirements of Items 2.5.3.1 and 2.5.3.3.

2.5.6.4.

The vibration test stand shall be adjusted in such a way that the rms value of the weighted vibration acceleration recorded at the seat attachment (awB) deviates by less than ± 5 % from the rms value of the weighted vibration acceleration at the seat attachment recorded on the standard roadway (a*wF).

In the event of deviations from the value (

image

) measured at the seat attachment during the test run, the weighted vibration acceleration recorded at the driver's seat during the test on the test stand must be corrected as follows:

image

.

Each of the tests on the test stand must be carried out twice. The measured values must not deviate from the arithmetic mean by more than ± 5%.

▼M2

2.5.7.   Test for determining the damping characteristics in the resonance range

2.5.7.1.

This test is carried out on the test stand as specified in Item 2.5.3.1. However, account must be taken of the following:

2.5.7.2.

Instead of the set values specified in the second paragraph of Item 2.5.3.1.1 (see Appendices ►M4  4, 5a and 5b ◄ to this Annex), sinusoidal oscillations of ± 15 mm amplitude with a frequency of 0,5 to 2 Hz are generated. The frequency range is to be run through with a constant rate of frequency change in not less than 60 seconds or at intervals no greater than 0,05 Hz with increasing frequency, and in an identical manner with decreasing frequency. During this measurement, it is permissible to filter the signals emitted by the accelerometers through a bandpass filter with cut-off frequencies of 0,5 and 2,0 Hz.

2.5.7.3.

The seat is to be loaded with a ballast of 40 kg in the first test and with a mass of 80 kg in the second test; the ballast is to be applied on the device illustrated in Figure 1 of Appendix 1, with the same line of action of the force as when determining the seat reference point.

2.5.7.4.

The ratio of the rms values of the vibration acceleration on the seat surface awS to those at the seat attachment awB:

image

is to be determined in the frequency range from 0,5 to 2,0 Hz at intervals no greater than 0,05 Hz.

2.5.7.5.

The ratio measured must be given in the test report to two decimal places.

▼B

3.   EEC COMPONENT TYPE-APPROVAL AND MARKING REQUIREMENTS

3.1.   Conditions necessary for EEC component type-approval of a seat

To be granted EEC component type-approval, a seat must, in addition to fulfilling the requirements set out above, satisfy the following conditions:

3.1.1.

the range of adjustment as a function of the driver's mass must extend from at least 50 to 120 kg;

3.1.2.

the change in the angle of inclination measured during the lateral stability test must not exceed 5°;

3.1.3.

neither of the two values described in 2.5.3.3.7.2 must exceed 1·25 m/s2.

▼M2

3.1.4.

The ratio referred to in Items 2.5.7.4 and 2.5.7.5 shall not exceed the value of 2.

▼B

3.2.   Application for EEC component type-approval

3.2.1.

The application for EEC component type-approval must be submitted by the owner of the trade name or mark or by his authorized representative.

3.2.2.

For each type of driver's seat, the application must be accompanied by:

3.2.2.1.

a brief technical description, stating in particular the type of tractor or tractors for which it is intended;

3.2.2.2.

drawings in triplicate, sufficiently detailed to permit identification of the type of seat and showing in particular its dimensions, its weight, its suspension system and its means of attachment;

3.2.2.3.

at least one seat;

3.2.2.4.

one tractor (if necessary) representative of the type of tractor for which the seat is intended.

3.3.   Inscriptions

3.3.1.

The seat submitted for EEC component type-approval must bear the applicant's trade name or mark, clearly and indelibly inscribed.

3.3.2.

On each seat there must be a space large enough for the EEC component type-approval mark; this space must be shown on the drawings referred to in 3.2.2.2.

3.4.   EEC component type-approval

3.4.1.

If the seat submitted in accordance with 3.2 complies with the requirements of 3.1 and 3.3, EEC component type-approval is granted and a component type-approval number allocated.

3.4.2.

This number must not be allocated to any other type of seat.

3.5.   Marking

3.5.1.

Every seat conforming to a type approved in pursuance of this Directive must bear an EEC component type-approval mark.

3.5.2.

This mark must consist of:

3.5.2.1.

a rectangle surrounding the lower-case letter ‘e’ followed by the distinguishing number or letters of the Member State which has granted the component type-approval:

▼A2

1 for Germany

2 for France

3 for Italy

4 for the Netherlands

6 for Belgium

9 for Spain

11 for the United Kingdom

13 for Luxembourg

DK for Denmark

▼M3

EL for Greece

▼A2

IRL for Ireland

P for Portugal

12 for Austria

17 for Finland

5 for Sweden

▼A4

8 for the Czech Republic

29 for Estonia

CY for Cyprus

32 for Latvia

36 for Lithuania

7 for Hungary

MT for Malta

20 for Poland

26 for Slovenia

27 for Slovakia

▼M7

34 for Bulgaria

19 for Romania

▼M8

25 for Croatia

▼B

3.5.2.2.

the EEC component type-approval number which corresponds to the number of the EEC component type-approval certificate issued for the type of seat, below and close to the rectangle; and

3.5.2.3.

the indication, above and close to the rectangle, of the type of Category A tractor for which the seat is intended. This is to be shown as follows:

 for Category A tractors in Class I: I.

 for Category A tractors in Classes I and II: I and II.

▼M4

 for class II and III, category A tractors: II and III.

▼B

If no indication is given above the rectangle, the seat is intended for a Category B tractor.

3.5.3.

The EEC component type-approval mark must be affixed to the seat in such a way that it is indelible and clearly legible even when the seat is mounted on the tractor.

3.5.4.

An example of the component type-approval mark is given in Appendix 11.

3.5.5.

The dimensions of the various parts of this mark must not be smaller than the minimum dimensions specified for marking as illustrated in Appendix 11.




Appendix 1

Method of determining the seat reference point (S)

1.   DEFINITION OF THE REFERENCE POINT (S)

‘Seat reference point’ (S) means the point of intersection in the median longitudinal plane of the seat between the tangential plane at the base of the padded backrest and a horizontal plane. This horizontal plane intersects the lower surface of the seat 150 mm in front of the seat reference point (S).

2.   DEVICE FOR DETERMINING THE SEAT REFERENCE POINT (S)

The device illustrated in Figure 1 consists of a seat pan board and backrest boards. The lower backrest boards must be hinged in the region of the ischium humps (A) and the loin (B), the hinge (B) being adjustable in height.

3.   METHOD OF DETERMINING THE SEAT REFERENCE POINT (S)

The seat reference point (S) must be obtained by using the device illustrated in Figures 1 and 2, which simulates loading by a human occupant. The device must be positioned on the seat. It must then be loaded with a force of 550 N at a point 50 mm in front of hinge (A) and two parts of the backrest lightly pressed tangentially against the padded backrest.

If it is not possible to determine definite tangents to each area of the padded backrest (below and above the lumbar region) the following procedure must be adopted:

(a) where there is no possibility of defining the tangent to the lowest possible area, the lower part of the backrest board in a vertical position must be lightly pressed against the padded backrest;

(b) where there is no possibility of defining the tangent to the highest possible area, if the lower part of the backrest board is vertical, the hinge must be fixed at a height of 230 mm above the seat reference point (S). The two parts of the backrest board in a vertical position must then be lightly pressed tangentially against the padded backrest.

image

Figure 1

Device for determining the seat reference point (S)

image

Figure 2

Device in position

▼M2




Appendix 2

Determination of the characteristic curves of the suspension system and the load adjustment range (Item 2.5.1)

image

▼B




Appendix 3

Test on standard roadway

Table of elevation ordinates in relation to ►M2  a ◄ basic level defining the surface of each strip of the roadway (2.5.3.2.1)

▼M2

D = distance from the beginning of the standard roadway (in metres)

▼B

L = ordinate of the left-hand strip (mm)

R = ordinate of the right-hand strip (mm)



D

L

R

0

115

140

0·16

110

125

0·32

110

140

0·48

115

135

0·64

120

135

0·80

120

125

0·96

125

135

1·12

120

125

1·28

120

115

1·44

115

110

1·60

110

100

1·76

110

110

1·92

110

110

2·08

115

115

2·24

110

110

2·40

100

110

2·56

100

100

2·72

95

110

2·88

95

95

3·04

90

95

3·20

90

100

3·36

85

100

3·52

90

100

3·68

90

115

3·84

95

110

4·00

90

110

4·16

90

95

4·32

95

100

4·48

100

100

4·64

100

90

4·90

90

90

4·96

90

90

5·12

95

90

5·28

95

70

5·44

95

65

5·60

90

50

5·76

95

50

5·92

85

50

6·08

85

55

6·24

75

55

6·40

75

55

6·56

70

65

6·72

75

75

6·88

65

75

7·04

65

85

7·20

65

90

7·36

75

95

7·52

75

100

7·68

95

95

7·84

115

110

8·00

115

100

8·16

125

110

8·32

110

100

8·48

110

100

8·64

110

95

8·80

110

95

8·96

110

95

9·12

110

100

9·28

125

90

9·44

120

100

9·60

135

95

9·76

120

95

9·92

120

95

10·08

120

95

10·24

115

85

10·40

115

90

10·56

115

85

10·72

115

90

10·88

120

90

11·04

110

75

11·20

110

75

11·36

100

85

11·52

110

85

11·68

95

90

11·84

95

90

12·00

95

85

12·16

100

95

12·32

100

90

12·48

95

85

12·64

95

85

12·80

95

90

12·96

85

90

13·12

85

85

13·28

75

90

13·44

75

95

13·60

75

90

13·76

70

75

13·92

70

90

14·08

70

100

14·24

70

110

14·40

65

95

14·56

65

100

14·72

65

90

14·88

65

90

15·04

65

85

15·20

55

85

15·36

65

85

15·52

65

85

15·68

55

75

15·84

55

85

16·00

65

75

16·16

55

85

16·32

50

75

16·48

55

75

16·64

65

75

16·80

65

75

16·96

65

85

17·12

65

70

17·28

65

65

17·44

65

75

17·60

65

75

17·76

50

75

17·92

55

85

18·08

55

85

18·24

65

85

18·40

70

75

18·56

75

75

18·72

95

75

18·88

90

75

19·04

90

70

19·20

95

70

19·36

85

70

19·52

85

75

19·68

75

85

19·84

85

85

20·00

75

90

20·16

85

85

20·32

75

70

20·48

70

75

20·64

65

75

20·80

70

75

20·96

65

75

21·12

70

75

21·28

70

85

21·44

70

85

21·60

70

90

21·76

75

95

21·92

75

95

22·08

75

90

22·24

85

90

22·40

85

95

22·58

90

85

22·72

90

85

22·88

95

85

23·04

95

85

23·20

100

85

23·36

100

75

23·52

110

85

23·68

110

85

23·84

110

85

24·00

100

75

24·16

100

75

24·32

95

70

24·48

100

70

24·64

100

70

24·80

115

75

24·96

110

75

25·12

110

85

25·28

100

75

25·44

110

95

25·60

100

95

25·76

115

100

25·92

115

100

26·08

110

95

26·24

115

95

26·40

110

95

26·56

100

95

26·72

100

95

26·88

100

100

27·04

100

95

27·20

100

95

27·36

110

90

27·52

115

90

27·68

115

85

27·84

110

90

28·00

110

85

28·16

110

85

28·32

100

85

28·48

100

90

28·64

90

85

28·80

90

75

28·96

75

90

29·12

75

75

29·28

75

75

29·44

70

75

29·60

75

75

29·76

75

85

29·92

85

75

30·08

75

75

30·24

85

75

30·40

75

75

30·56

70

75

30·72

75

75

30·88

85

75

31·04

90

75

31·20

90

85

31·36

100

75

31·52

100

75

31·68

120

85

31·84

115

75

32·00

120

85

32·16

120

85

32·32

135

90

32·48

145

95

32·64

160

95

32·80

165

90

32·96

155

90

33·12

145

90

33·28

140

95

33·44

140

85

33·60

140

85

33·76

125

75

33·92

125

75

34·08

115

85

34·24

120

75

34·40

125

75

34·56

115

85

34·72

115

75

34·88

115

90

35·04

115

100

35·20

120

100

35·36

120

100

35·52

135

95

35·68

135

95

35·84

135

95

36·00

135

90

36·16

120

75

36·32

115

75

36·48

110

70

36·64

100

65

36·80

110

55

36·96

115

55

37·12

100

50

37·28

115

50

37·44

110

50

37·60

100

65

37·76

90

55

37·92

95

55

38·08

90

35

38·24

90

35

38·40

110

35

38·56

100

35

38·72

115

35

38·88

100

35

39·04

100

35

39·20

110

30

39·36

110

45

39·52

110

50

39·68

100

55

39·84

110

50

40·00

90

55

40·16

85

55

40·32

90

65

40·48

90

65

40·64

90

70

40·80

95

75

40·96

95

75

41·12

95

75

41·28

90

90

41·44

90

95

41·60

85

95

41·76

85

100

41·92

90

100

42·08

90

95

42·24

85

100

42·40

85

110

42·56

95

110

42·72

95

115

42·88

95

115

43·04

100

100

43·20

100

95

43·36

100

95

43·52

100

90

43·68

110

95

43·84

100

100

44·00

110

90

44·16

100

85

44·32

110

90

44·48

110

85

44·64

100

85

44·80

100

90

44·96

95

90

45·12

90

95

45·28

90

100

45·44

95

100

45·60

90

90

45·76

85

90

45·92

75

90

46·08

85

90

46·24

75

90

46·40

75

90

46·54

75

90

46·72

85

90

46·88

85

85

47·04

90

85

47·20

75

85

47·36

65

75

47·52

70

70

47·68

70

75

47·84

70

75

48·00

75

85

48·16

90

95

48·32

95

95

48·48

100

120

48·64

110

100

48·30

115

100

48·96

115

115

49·12

120

115

49·28

120

110

49·44

115

95

49·60

115

90

49·76

115

90

49·92

110

95

50·08

110

100

50·24

100

110

50·40

100

120

50·56

95

120

50·72

95

115

50·88

95

120

51·04

95

120

51·20

90

135

51·36

95

125

51·52

95

120

51·68

100

120

51·84

100

120

52·00

100

120

52·16

100

125

52·32

110

125

52·48

110

125

52·64

100

125

52·80

100

120

52·96

100

120

53·12

110

115

53·28

100

110

53·44

110

110

53·60

95

110

53·76

95

110

53·92

100

110

54·08

95

100

54·24

100

100

54·40

100

100

54·56

100

100

54·72

95

100

54·88

100

100

55·04

100

115

55·20

110

115

55·36

100

110

55·52

110

100

55·68

100

110

55·84

100

110

56·00

100

110

56·16

95

115

56·32

90

110

56·48

95

110

56·64

95

110

56·80

90

100

56·96

100

100

57·12

100

95

57·28

95

100

57·44

100

100

57·60

95

115

57·76

85

110

57·92

90

115

58·08

90

110

58·24

90

100

58·40

85

95

58·56

90

95

58·72

85

90

58·88

90

90

59·04

90

95

59·20

90

115

59·36

90

115

59·52

90

115

59·68

85

110

59·84

75

110

60·00

90

115

60·16

90

120

60·32

90

120

60·48

90

120

60·64

95

120

60·80

95

120

60·96

90

120

61·12

90

115

61·28

95

110

61·44

95

110

61·60

100

100

61·76

110

100

61·92

100

100

62·08

100

100

62·24

95

100

62·40

95

100

62·56

95

100

62·72

90

100

62·88

90

100

63·04

90

100

63·20

90

90

63·36

90

90

63·52

85

90

63·68

85

90

63·84

75

85

64·00

75

85

64·16

75

75

64·32

75

75

64·48

70

75

64·64

70

70

64·80

70

55

64·96

70

45

65·12

65

55

65·28

65

55

65·44

65

65

65·60

55

70

65·76

55

75

65·92

55

75

66·08

55

75

66·24

55

85

66·46

55

85

66·56

65

90

66·72

70

90

66·88

70

110

67·04

65

100

67·20

55

100

67·36

65

100

67·52

50

100

67·68

50

85

67·84

50

90

68·00

50

100

68·16

55

100

68·32

55

95

68·48

65

90

68·64

50

85

68·80

50

70

68·96

50

70

69·12

50

65

69·28

50

55

69·44

45

50

69·60

35

50

69·76

35

55

69·92

35

65

70·08

35

65

70·24

35

65

70·40

35

55

70·58

45

55

70·72

50

55

70·88

50

50

71·04

50

45

71·20

50

45

71·36

50

50

71·52

45

45

71·68

45

55

71·84

55

65

72·00

55

65

72·16

70

65

72·32

70

75

72·48

75

85

72·64

75

85

72·80

75

90

72·96

85

95

73·12

90

100

73·28

90

110

73·44

90

115

73·60

90

120

73·76

90

115

73·92

90

115

74·08

110

115

74·24

100

100

74·40

100

110

74·56

100

110

74·72

95

115

74·88

95

120

75·04

95

125

75·20

95

135

75·36

100

135

75·52

100

140

75·68

100

140

75·84

100

140

76·00

110

135

76·16

100

125

76·32

100

125

76·48

100

125

76·64

110

125

76·80

115

125

76·96

120

125

77·12

120

125

77·28

120

135

77·44

110

125

77·60

100

125

77·76

120

135

77·92

120

125

78·03

120

125

78·24

115

125

78·40

115

120

78·56

115

120

78·72

110

120

78·88

100

120

79·04

100

120

79·20

95

120

79·36

95

120

79·52

95

125

79·68

95

125

79·84

100

120

80·00

95

125

80·16

95

125

80·32

95

125

80·48

100

120

80·64

100

125

80·80

100

125

80·96

110

125

81·12

115

135

81·28

110

140

81·44

115

140

81·60

110

140

81·76

115

140

81·92

110

140

82·08

110

140

82·24

110

135

82·40

110

135

82·56

100

125

87·72

110

125

82·88

110

125

83·04

100

125

83·20

100

120

83·36

100

125

83·52

100

120

83·68

100

135

83·84

95

140

84·00

100

135

84·16

110

140

84·32

110

140

84·48

110

140

84·64

110

140

84·80

120

155

84·96

115

145

85·12

115

155

85·28

120

160

85·44

120

165

85·60

120

160

85·76

125

165

85·92

135

160

86·08

135

160

86·24

125

155

86·40

125

155

86·56

120

145

86·72

120

145

86·98

110

140

87·04

110

140

87·20

110

140

87·36

110

140

87·52

110

140

87·68

100

135

87·84

100

135

88·00

100

135

88·16

100

125

88·32

110

120

88·48

115

120

88·64

110

120

88·80

110

125

88·96

100

125

89·12

100

125

89·28

95

125

89·44

95

125

89·60

100

120

89·76

100

135

89·92

110

140

90·08

110

135

90·24

110

140

90·40

100

145

90·56

100

155

90·72

110

155

90·88

110

155

91·04

100

155

91·20

110

155

91·36

110

160

91·52

115

160

91·68

110

155

91·84

115

155

92·00

115

140

92·16

115

155

92·32

120

155

92·48

125

145

92·64

125

155

92·80

125

155

92·96

120

155

93·12

120

145

93·28

120

145

93·44

115

145

93·60

120

145

93·76

115

140

93·92

115

140

94·08

115

140

94·24

115

140

94·40

115

140

94·56

115

140

94·72

115

135

94·88

115

135

95·04

110

135

95·20

110

135

95·36

110

135

95·52

115

135

95·68

100

140

95·84

95

135

96·00

100

125

96·16

95

125

96·32

95

125

96·48

95

125

96·64

110

125

96·80

95

120

96·96

95

120

97·12

95

120

97·28

95

110

97·44

100

115

97·60

110

120

97·76

110

115

97·92

100

115

98·08

95

115

98·24

100

115

98·40

95

115

98·52

100

115

98·72

100

110

98·88

110

100

99·04

95

95

99·20

90

100

99·36

90

100

93·52

75

110

99·68

75

115

99·84

75

115

100·00

75

110

▼M2




Appendix 4

Set-value signals for the test-stand inspection of the driver's seat on Category A (Class I) tractors (Item 2.5.3.1.1):

PS = set point;

a = amplitude of the set-value signal (in 10-4 m);

t = measurement time (in seconds).

When the sequence of signals is repeated in the table for 701 points, points 700 and 0 coincide in time at an amplitude of a = 0:



PS No

a

10-4 m

t

s

0

0 000

0

1

0 089

.

2

0 215

.

.

.

.

.

.

.

.

.

.

699

0 023

.

700

0 000

28,0




Appendix ►M4  5a ◄

Set-value signals for the test-stand inspection of the driver's seat on Category A (Class II) tractors (Item 2.5.3.1.1):

PS = set points;

a = amplitude of the set-value signal (in 10-4 m);

t = measurement time (in seconds).

When the sequence of signals is repeated in the table for 701 points, points 700 and 0 coincide in time at an amplitude of a = 0:



PS No

a

10-4 m

t

s

0

0 000

0

1

0 022

.

2

0 089

.

.

.

.

.

.

.

.

.

.

699

0 062

.

700

0 000

►M4  31,0 ◄

▼M4




Appendix 5b

Set-value signals for the test-stand testing of drivers' seats for category A tractors in class III (point 2.5.3.1.1)

PS = set point

a = amplitude of the set value signal in mm

t = measurement time in seconds

If the signal sequence is repeated for 701 points in the table, point 700 and 0 merge in time, with amplitude a = 0.



PS

No

a

mm

t

s

1

0

0,000

2

-3

0,027

3

-0

0,055

4

2

0,082

5

4

0,109

6

6

0,137

7

6

0,164

8

5

0,192

9

3

0,219

10

1

0,246

11

-0

0,274

12

-2

0,301

13

-4

0,328

14

-4

0,356

15

-4

0,383

16

-2

0,411

17

-1

0,439

18

0

0,465

19

2

0,493

20

3

0,520

21

4

0,547

22

3

0,575

23

1

0,602

24

0

0,630

25

-1

0,657

26

-3

0,684

27

-4

0,712

28

-4

0,739

29

-4

0,766

30

-2

0,794

31

-0

0,821

32

2

0,848

33

4

0,876

34

6

0,903

35

6

0,931

36

6

0,958

37

4

0,985

38

1

1,013

39

-1

1,040

40

-4

1,067

41

-6

1,093

42

-8

1,122

43

-8

1,150

44

-7

1,177

45

-4

1,204

46

-1

1,232

47

2

1,259

48

6

1,286

49

8

1,314

50

10

1,341

51

10

1,369

52

8

1,396

53

4

1,423

54

0

1,451

55

-4

1,478

56

-8

1,505

57

-11

1,533

58

-13

1,560

59

-12

1,587

60

-9

1,613

61

-4

1,642

62

6

1,670

63

6

1,697

64

11

1,724

65

15

1,752

66

16

1,779

67

14

1,806

68

11

1,834

69

5

1,861

70

-1

1,869

71

-8

1,916

72

-14

1,943

73

-18

1,971

74

-19

1,998

75

-17

2,025

76

-13

2,053

77

-6

2,080

78

0

2,108

79

8

2,135

80

15

2,162

81

19

2,190

82

21

2,217

83

19

2,244

84

15

2,272

85

8

2,299

86

0

2,326

87

-7

2,354

88

-15

2,361

89

-19

2,409

90

-21

2,436

91

-20

2,463

92

-15

2,491

93

-8

2,518

94

-0

2,545

95

7

2,573

96

14

2,600

97

19

2,628

98

21

2,655

99

19

2,662

100

14

2,710

101

7

2,737

102

-0

2,764

103

-8

2,792

104

-15

2,819

105

-19

2,847

106

-20

2,874

107

-18

2,901

108

-13

2,929

109

-5

2,956

110

2

2,983

111

10

3,011

112

16

3,038

113

20

3,055

114

20

3,093

115

17

3,120

116

12

3,148

117

5

3,175

118

-3

3,202

119

-10

3,230

120

-17

3,257

121

-20

3,284

122

-21

3,312

123

-18

3,339

124

-13

3,367

125

-6

3,396

126

2

3,421

127

10

3,449

128

16

3,476

129

21

3,503

130

22

3,531

131

20

3,558

132

15

3,586

133

8

3,613

134

0

3,640

135

-8

3,668

136

-15

3,695

137

-20

3,722

138

-23

3,750

139

-22

3,777

140

-18

3,804

141

-11

3,832

142

-3

3,859

143

5

3,887

144

13

3,914

145

19

3,941

146

23

3,969

147

23

3,996

148

20

4,023

149

14

4,051

150

6

4,078

151

-2

4,106

152

-11

4,133

153

-17

4,160

154

-21

4,188

155

-22

4,215

156

-20

4,242

157

-14

4,270

158

-7

4,297

159

0

4,325

160

8

4,352

161

14

4,379

162

18

4,407

163

19

4,434

164

17

4,461

165

13

4,489

166

7

4,516

167

0

4,543

168

-6

4,571

169

-11

4,598

170

-14

4,626

171

-16

4,653

172

-14

4,680

173

-11

4,708

174

-6

4,735

175

-1

4,762

176

4

4,790

177

8

4,817

178

12

4,845

179

13

4,872

180

13

4,899

181

11

4,927

182

7

4,954

183

3

4,981

184

-1

5,009

185

-5

5,036

186

-9

5,064

187

-11

5,091

188

-12

5,118

189

-12

5,146

190

-10

5,173

191

-6

5,200

192

-2

5,228

193

1

5,255

194

5

5,283

195

9

5,310

196

11

5,337

197

13

5,365

198

12

5,392

199

11

5,419

200

7

5,447

201

3

5,474

202

-0

5,501

203

-5

5,529

204

-9

5,556

205

-12

5,584

206

-14

5,611

207

-14

5,638

208

-12

5,666

209

-9

5,693

210

-4

5,720

211

0

5,748

212

5

5,775

213

9

5,803

214

13

5,830

215

15

5,857

216

15

5,885

217

13

5,912

218

9

5,939

219

4

5,967

220

-1

5,994

221

-7

6,022

222

-11

6,049

223

-15

6,076

224

-16

6,104

225

-16

6,131

226

-12

6,158

227

-7

6,186

228

-1

6,213

229

4

6,240

230

10

6,268

231

16

6,295

232

17

6,323

233

17

6,350

234

14

6,377

235

9

6,405

236

3

6,432

237

-3

6,459

238

-10

6,487

239

-15

6,514

240

-19

6,542

241

-19

6,569

242

-17

6,596

243

-12

6,624

244

-6

6,651

245

1

6,678

246

9

6,706

247

16

6,733

248

21

6,761

249

22

6,783

250

21

6,815

251

16

6,843

252

9

6,870

253

0

6,897

254

-8

6,925

255

-16

6,952

256

-22

6,979

257

-25

7,007

258

-24

7,034

259

-20

7,062

260

-13

7,089

261

-4

7,116

262

5

7,144

263

14

7,171

264

24

7,198

265

25

7,226

266

26

7,253

267

23

7,281

268

17

7,308

269

8

7,335

270

-1

7,363

271

-11

7,390

272

-20

7,417

273

-26

7,445

274

-27

7,472

275

-25

7,500

276

-19

7,527

277

-11

7,554

278

-1

7,582

279

9

7,609

280

18

7,636

281

24

7,664

282

27

7,691

283

26

7,718

284

21

7,746

285

13

7,773

286

4

7,801

287

-5

7,828

288

-13

7,855

289

-20

7,883

290

-24

7,910

291

-25

7,937

292

-22

7,965

293

-17

7,992

294

-9

8,020

295

-1

8,047

296

7

8,074

297

14

8,102

298

20

8,129

299

22

8,156

300

22

8,184

301

19

8,211

302

13

8,239

303

6

8,266

304

-1

8,293

305

-9

8,321

306

-15

8,348

307

-19

8,375

308

-20

8,403

309

-19

8,430

310

-14

8,457

311

-8

8,485

312

-0

8,512

313

6

8,540

314

12

8,567

315

16

8,594

316

18

8,622

317

16

8,649

318

12

8,676

319

6

8,704

320

0

8,731

321

-7

8,759

322

-12

8,786

323

-15

8,813

324

-16

8,841

325

-13

8,868

326

-8

8,895

327

-1

8,923

328

5

8,950

329

11

8,978

330

15

9,005

331

17

9,032

332

15

9,060

333

11

9,087

334

5

9,114

335

-2

9,142

336

-9

9,169

337

-15

9,196

338

-18

9,224

339

-19

9,261

340

-16

9,279

341

-11

9,306

342

-3

9,333

343

4

9,361

344

11

9,388

345

16

9,415

346

19

9,443

347

19

9,470

348

16

9,498

349

11

9,525

350

4

9,552

351

-2

9,580

352

-9

9,607

353

-14

9,634

354

-17

9,662

355

-18

9,689

356

-16

9,717

357

-12

9,744

358

-7

9,771

359

-1

9,799

360

4

9,826

361

9

9,853

362

13

9,881

363

16

9,908

364

15

9,935

365

14

9,963

366

10

9,990

367

5

10,018

368

-0

10,045

369

-5

10,072

370

-10

10,100

371

-13

10,127

372

-15

10,154

372

-14

10,182

374

-12

10,209

375

-7

10,237

376

-2

10,264

377

2

10,291

378

8

10,319

379

11

10,346

380

13

10,373

381

13

10,401

382

11

10,428

383

7

10,456

384

2

10,483

385

-2

10,510

386

-7

10,538

387

-10

10,565

388

-11

10,592

389

-11

10,620

390

-8

10,647

391

-5

10,674

392

-0

10,702

393

3

10,729

394

7

10,757

395

9

10,784

396

9

10,811

397

8

10,839

398

5

10,866

399

1

10,893

400

-2

10,921

401

-6

10,949

402

-7

10,975

403

-8

11,003

404

-7

11,030

405

-5

11,058

406

-2

11,085

407

0

11,112

408

4

11,140

409

6

11,167

410

7

11,195

411

7

11,222

412

6

11,249

413

4

11,277

414

1

11,304

415

-1

11,331

416

-4

11,359

417

-7

11,386

418

-8

11,413

419

-8

11,441

420

-6

11,468

421

-4

11,496

422

-1

11,523

423

1

11,550

424

4

11,578

425

7

11,605

426

8

11,632

427

8

11,660

428

7

11,687

429

5

11,715

430

2

11,742

431

-0

11,769

432

-2

11,797

433

-4

11,824

434

-6

11,851

435

-7

11,879

436

-6

11,906

437

-6

11,934

438

-4

11,961

439

-3

11,988

440

-1

12,016

441

0

12,043

442

2

12,070

443

4

12,098

444

6

12,125

445

7

12,152

446

7

12,180

447

7

12,207

448

6

12,235

449

4

12,262

450

1

12,289

451

-1

12,317

452

-5

12,344

453

-8

12,371

454

-10

12,399

455

-11

12,426

456

-11

12,454

457

-9

12,481

458

-5

12,509

459

-1

12,536

460

3

12,563

461

8

12,590

462

11

12,618

463

13

12,645

464

12

12,673

465

10

12,700

466

7

12,727

467

2

12,755

468

-2

12,782

469

-6

12,809

470

-9

12,837

471

-10

12,864

472

-10

12,891

473

-8

12,915

474

-5

12,946

475

-2

12,974

476

1

13,001

477

3

13,028

478

6

13,056

479

6

13,083

480

5

13,110

481

4

13,138

482

2

13,165

483

0

13,193

484

-0

13,220

485

-1

13,247

486

-2

13,275

487

-2

13,302

488

-1

13,329

489

-1

13,357

490

-0

13,384

491

0

13,412

492

1

13,439

493

1

13,466

494

1

13,494

495

0

13,521

496

0

13,548

497

-0

13,576

498

-1

13,603

499

-1

13,630

500

-1

13,659

501

-1

13,685

502

-1

13,713

503

-1

13,740

504

-0

13,767

505

-0

13,795

506

0

13,822

507

1

13,849

508

1

13,877

509

2

13,904

510

2

13,932

511

2

13,959

512

2

13,986

513

1

14,014

514

1

14,041

515

0

14,068

516

-0

14,096

517

-1

14,123

518

-1

14,151

519

-2

14,178

520

-2

14,205

521

-2

14,233

522

-2

14,260

523

-1

14,287

524

-1

14,316

525

-1

14,342

526

-0

14,370

527

-0

14,397

528

0

14,424

529

0

14,452

530

1

14,479

531

2

14,506

532

2

14,534

533

3

14,561

534

4

14,598

535

4

14,616

536

3

14,643

537

2

14,671

538

1

14,698

539

-0

14,725

540

-2

14,753

541

-5

14,780

542

-7

14,807

543

-8

14,835

544

-8

14,862

545

-7

14,890

546

-5

14,917

547

-1

14,944

548

1

14,972

549

6

14,999

550

9

15,026

551

12

15,054

552

13

15,081

553

11

15,109

554

9

15,136

555

4

15,163

556

-0

15,191

557

-6

15,218

558

-11

15,245

559

-15

15,273

560

-16

15,300

561

-15

15,327

562

-12

15,356

563

-6

15,382

564

-0

15,410

565

6

15,437

566

12

15,464

567

17

15,492

568

19

15,519

569

18

15,546

570

14

15,574

571

8

15,601

572

1

15,629

573

-6

15,656

574

-12

15,683

575

-17

15,711

576

-19

15,738

577

-19

15,766

578

-15

15,793

579

-10

15,820

580

-8

15,848

581

4

15,875

582

11

15,902

583

16

15,930

584

18

15,957

585

18

15,984

586

15

16,012

587

10

16,039

588

3

16,066

589

-3

16,094

590

-10

16,121

591

-15

16,149

592

-17

16,176

593

-17

16,203

594

-15

15,231

595

-10

16,258

596

-3

16,285

597

2

16,313

598

9

16,340

599

14

16,368

600

16

16,395

601

17

16,422

602

14

16,450

603

10

16,477

604

5

16,504

605

-1

16,532

606

-7

16,559

607

-12

16,587

608

-15

16,614

609

-16

16,641

610

-16

16,669

611

-13

16,696

612

-8

16,728

613

-3

16,741

614

2

16,776

615

8

16,803

616

12

16,833

617

15

16,860

618

16

16,888

619

15

16,915

620

12

16,942

621

8

16,970

622

2

16,997

623

-2

17,024

624

-8

17,052

625

-12

17,079

626

-14

17,107

627

-15

17,134

628

-14

17,161

629

-11

17,189

630

-7

17,216

631

-2

17,243

632

1

17,271

633

6

17,298

634

9

17,326

635

11

17,353

636

12

17,380

637

11

17,408

638

9

17,435

639

6

17,462

640

2

17,490

641

-0

17,517

642

-3

17,544

643

-5

17,572

644

-6

17,599

645

-6

17,627

646

-6

17,654

647

-4

17,681

648

-3

17,709

649

-1

17,736

650

-0

17,763

651

0

17,791

652

1

17,818

653

0

17,845

654

0

17,873

655

0

17,900

656

-0

17,928

657

-0

17,955

658

-0

17,982

659

0

18,010

660

1

18,037

661

3

18,065

662

4

18,092

663

5

18,119

664

5

18,147

665

5

18,174

666

4

18,201

667

2

18,229

668

-0

18,256

669

-3

18,283

670

-6

18,311

671

-9

18,339

672

-10

18,366

673

-10

18,393

674

-9

18,420

675

-6

18,448

676

-3

18,475

677

1

18,502

678

6

18,530

679

10

18,557

680

12

18,585

681

14

18,612

682

13

18,639

683

10

18,667

684

6

18,694

685

1

18,721

686

-3

18,749

687

-6

18,776

688

-11

18,804

689

-13

18,831

690

-13

18,858

691

-10

18,886

692

-7

18,913

693

-3

18,940

694

1

18,968

695

4

18,996

696

7

19,022

697

8

19,050

698

8

19,077

699

6

19,105

700

4

19,132

701

1

19,159

702

-0

19,187

703

-2

19,214

704

-2

19,241

705

-2

19,269

706

-1

19,296

707

0

19,324

708

1

19,351

709

2

19,978

710

2

19,406

711

1

19,433

712

-0

19,460

713

-2

19,488

714

-5

19,515

715

-6

19,543

716

-7

19,570

717

-7

19,597

718

-5

19,625

719

-3

19,652

720

0

19,679

721

3

19,707

722

7

19,734

723

9

19,761

724

11

19,789

725

11

19,816

726

10

19,844

727

7

19,871

728

3

19,898

729

-0

19,926

730

-4

19,953

731

-8

19,980

732

-11

20,008

733

-12

20,035

734

-12

20,063

735

-10

20,090

736

-7

20,117

737

-3

20,145

738

0

20,172

739

5

20,199

740

8

20,227

741

11

20,254

742

12

20,282

743

11

20,309

744

9

20,336

745

6

20,354

746

1

20,391

747

-2

20,418

748

-6

20,446

749

-9

20,473

750

-10

20,500

751

-9

20,526

752

-7

20,556

753

-4

20,583

754

-1

20,610

755

2

20,637

756

5

20,665

757

7

20,692

758

8

20,719

759

7

20,747

760

5

20,774

761

2

20,802

762

-1

20,829

763

-4

20,856

764

-7

20,884

765

-9

20,911

766

-9

20,938

767

-7

20,966

768

-5

20,993

769

-1

21,021

770

2

21,048

771

5

21,075

772

8

21,103

773

10

21,130

774

10

21,157

775

8

21,185

776

6

21,212

777

2

21,239

778

-1

21,267

779

-4

21,294

780

-7

21,322

781

-9

21,349

782

-9

21,376

783

-8

21,404

784

-7

21,431

785

-4

21,458

786

-1

21,486

787

1

21,513

788

4

21,541

789

6

21,568

790

7

21,595

791

7

21,623

792

7

21,650

793

5

21,677

794

3

21,705

795

0

21,732

796

-1

21,760

797

-4

21,787

798

-5

21,814

799

-6

21,842

800

-5

21,869

801

-4

21,896

802

-2

21,924

803

-0

21,951

804

2

21,978

805

4

22,006

806

5

22,033

807

5

22,061

808

4

22,088

809

3

22,115

810

0

22,143

811

-1

22,170

812

-3

22,197

813

-5

22,225

814

-6

22,252

815

-5

22,280

816

-4

22,307

817

-3

22,334

818

-0

22,362

819

1

22,389

820

4

22,416

821

5

22,444

822

6

22,471

824

6

22,526

825

5

22,553

826

3

22,581

827

0

22,608

828

-2

22,635

829

-4

22,663

830

-7

22,690

831

-8

22,717

832

-9

22,745

833

-8

22,772

834

-7

22,800

835

-4

22,827

836

-1

22,854

837

2

22,882

838

6

22,909

839

9

22,936

840

11

22,964

841

12

22,991

842

11

23,019

843

9

23,046

844

5

23,073

845

0

23,101

846

-5

23,128

847

-9

23,155

848

-13

23,183

849

-15

23,210

850

-15

23,238

851

-13

23,265

852

-9

23,292

853

-3

23,320

854

3

23,347

855

9

23,374

856

14

23,402

857

18

23,429

858

18

23,457

859

16

23,484

860

12

23,511

861

5

23,539

862

-1

23,566

863

-7

23,593

864

-13

23,621

865

-16

23,648

866

-17

23,675

867

-16

23,703

868

-12

23,730

869

-7

23,758

870

-1

23,785

871

4

23,812

872

9

23,840

873

12

23,867

874

14

23,894

875

13

23,922

876

11

23,949

877

7

23,977

878

2

24,004

879

-1

24,031

880

-6

24,059

881

-9

24,086

882

-11

24,113

883

-11

24,141

884

-9

24,168

885

-6

24,196

886

-3

24,223

887

0

24,250

888

4

24,278

889

7

24,305

890

9

24,332

891

9

24,360

892

8

24,387

893

6

24,414

894

3

24,442

895

-0

24,469

896

-3

24,497

897

-6

24,524

898

-8

24,551

899

-9

24,579

900

-8

24,606

901

-6

24,633

902

-2

24,661

903

0

24,688

904

4

24,716

905

7

24,743

906

8

24,770

907

9

24,798

908

7

24,825

909

5

24,852

910

1

24,880

911

-2

24,907

912

-6

24,935

913

-8

24,962

914

-10

24,989

915

-9

25,017

916

-7

25,044

917

-3

25,071

918

0

25,099

919

4

25,126

920

8

25,153

921

11

25,181

922

12

25,208

923

11

25,236

924

9

25,263

925

4

25,290

926

-0

25,318

927

-5

25,345

928

-9

25,372

929

-12

25,400

930

-13

25,427

931

-12

25,455

932

-9

25,482

933

-5

25,509

934

-0

25,537

935

4

25,564

936

8

25,591

937

11

25,619

938

13

25,645

939

13

25,674

940

11

25,701

941

7

25,728

942

3

25,756

943

-1

25,783

944

-5

25,810

945

-8

25,839

946

-10

25,855

947

-11

25,892

948

-10

25,920

949

-8

25,947

950

-6

25,975

951

-2

26,002

952

0

26,029

953

3

26,057

954

5

26,084

955

7

26,111

956

8

26,139

957

8

26,166

958

7

26,194

959

6

26,221

960

4

26,248

961

2

26,276

962

0

26,303

963

-2

26,330

964

-4

26,358

965

-5

26,385

966

-6

26,413

967

-7

26,440

968

-7

26,467

969

-7

26,495

970

-6

26,522

971

-4

26,549

972

-2

26,577

973

0

26,604

974

3

26,631

975

6

26,659

976

9

26,686

977

10

26,714

978

11

26,741

979

10

26,768

980

8

26,796

981

5

26,823

982

1

26,850

983

-3

26,878

984

-7

26,905

985

-10

26,933

986

-12

26,960

987

-13

26,987

988

-12

27,015

989

-10

27,042

990

-6

27,069

991

-2

27,097

992

2

27,124

993

6

27,152

994

10

27,179

995

12

27,206

996

14

27,234

997

13

27,261

998

11

27,288

999

8

27,316

1 000

3

27,343

1 001

-0

27,370

1 002

-5

27,399

1 003

-9

27,426

1 004

-12

27,453

1 005

-13

27,480

1 006

-13

27,507

1 007

-11

27,535

1 008

-7

27,562

1 009

-2

27,589

1 010

1

27,617

1 011

6

27,644

1 012

9

27,672

1 013

11

27,699

1 014

12

27,726

1 015

10

27,754

1 016

8

27,781

1 017

4

27,808

1 018

0

27,836

1 019

-3

27,863

1 020

-6

27,891

1 021

-8

27,918

1 022

-9

27,945

1 023

-8

27,973

1 024

0

28,000

▼B




Appendix 6

▼M2

Test stand (Item 2.5.3.1); example of construction (dimensions in mm)

image

▼M2 —————

▼B




Appendix ►M2  7 ◄

Characteristic of the filter of the vibration measuring instrument (2.5.3.3.5)

image

▼M2 —————

▼B




Appendix ►M2  8 ◄

Example of an EEC component type-approval mark (3.5)

image

The seat bearing the EEC type-approval mark above is a seat intended for a Category A tractor in Class I and approved in Germany (e1) under number 1 005.




ANNEX III

MODEL EEC COMPONENT TYPE-APPROVAL CERTIFICATE

image

►(1) M2  




ANNEX IV

DRIVER'S SEAT INSTALLATION REQUIREMENTS FOR EEC TYPE-APPROVAL OF A TRACTOR

1.

Every driver's seat must bear the EEC component type-approval mark and comply with the following installation requirements:

1.1.

the driver's seat must be installed in such a way that:

1.1.1.

the driver is assured of a comfortable position for driving and manoeuvring the tractor;

1.1.2.

the seat is easily accessible;

1.1.3.

the driver, when seated in the normal driving position, can easily reach the various controls of the tractor that are likely to be actuated during operation;

1.1.4.

no part of any of the seat or tractor components is likely to cause the driver to suffer cuts or bruises;

▼M6

1.1.5.

where the position of the seat is adjustable only lengthwise and vertically, the longitudinal axis passing through the seat reference point shall be parallel with the vertical longitudinal plane of the tractor passing through the centre of the steering wheel and not more than 100 mm from that plane;

▼B

1.1.6.

where the seat is designed to revolve round a vertical axis it must be capable of being locked in all or certain positions and in any case in the position mentioned in 1.1.5.

2.

The holder of the EEC type-approval may request that it be extended to other types of seat. The competent authorities must grant this extension on the following conditions:

2.1.

the new type of seat has received EEC component type-approval;

2.2.

it has been designed to be installed on the type of tractor for which the extension of the EEC type-approval has been requested;

2.3.

it is installed in such a manner as to comply with the installation requirements in this Annex.

▼M2

3.

Seats intended for tractors with a minimum rear-wheel track of not more than 1 150 mm may have the following minimum dimensions in respect of the depth and width of the seat surface:

 depth of seat surface: 300 mm;

 width of seat surface: 400 mm.

This provision is applicable only if the values specified for the depth and the width of the seat surface (i.e. 400 ± 50 mm and at least 450 mm respectively) cannot be adhered to on grounds relating to the tractor.

▼B

4.

A certificate conforming to the model shown in Annex V is to be attached to the EEC type-approval certificate for each type-approval or extension of type-approval granted or refused.




ANNEX V

ANNEX TO THE EEC TYPE-APPROVAL CERTIFICATE FOR A TRACTOR WITH REGARD TO THE DRIVER'S SEAT

(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)

image



( 1 ) OJ No C 299, 12. 12. 1977, p. 61.

( 2 ) OJ No C 84, 8. 4. 1978, p. 11.

( 3 ) OJ No L 84, 28. 3. 1974, p. 10.

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