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:





Amended by:





Corrected by:









▼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;

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

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

= 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 18.2. ◄ 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

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) — — or the square root of that integral — or directly the r.m.s. value of the weighted vibration acceleration (aweff ) — ▼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:

▼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 ( ) 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: . 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: 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.

Figure 1

Device for determining the seat reference point (S)

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)

▼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)

▼M2 —————

▼B









Appendix ►M2 7 ◄

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

▼M2 —————

▼B









Appendix ►M2 8 ◄

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

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

►(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)