ISO 8909-2 pdf free download

ISO 8909-2-2021 pdf free download.Equipment for harvesting – Forage harvesters一 Part 2: Specification of characteristics and performance.
4.1.3 For dimensional measurements, the forage harvester shall be placed on a hard, level surface.
4.1.4 II a self-propelled forage harvester has a crop container, it shall be empty.
4.1.5 The following data shall be recorded with the forage harvester performance specifications on the test report in ISO 8909-3:2021, Clause 7:
a) type of header used;
b) moisture content of the crop, expressed on the wet basis (mass of water in 100 g of unprocessed sample);
c) the average width and height between adjacent rows of crop collected and the average distance between adjacent rows, in metres to the nearest tenth. For crops planted in rows such as corn or sorghum, the row spacing (see ISO 8909-1:2021, 6.5) and the kernel/stalk ratio or grain stalk ratio (see ISO 8909-1:202 1, 6.6);
d) other relevant crop characteristics, as defined in ISO 8909-3:2021, Clause 6;
e) theoretical length of cut (see ISO 8909-1:2021, 5.24);
fl length distribution of particles in the chopped crop. determined using known mechanical separation means, capable of repetition or manual sorting, recorded in terms of average geometrical length and geometrical deviation, in accordance with ISO 8909•3;
g) if necessary, means of particle size reduction used (see ISO 8909-1:2021, 4.6 to 4.9).
4.2 Forage harvester characteristics
4.2.1 The mass (see ISO 8909-1:202 1, 5.1) of a self-propelled forage harvester shall be determined with a full fuel tank and a mass of 75 kg simulating the driver, lithe transport mass is also to be indicated, the fuel tank shall contain fuel not exceeding 10 % of its capacity
If the complete machine includes certain optional equipment which influences its total mass, and/or elements such as tyre weights for self-propelled forage harvesters, these shall be specified.
4.2.2 If certain accessories or optional equipment influence the length of the forage harvester
(see ISO 8909-1:2021, 5.2), these, and their dimensions, shall be recorded on the test report given in
ISO 8909-3:202 1, Clause 7.
4.2.3 II certain optional equipment and/or tyre dimensions and position of axles influence the width of the forage harvester (see ISO 8909-1:2021, 5.3), these, and their dimensions, shall be recorded on the test report given in ISO 8909-3:2021, Clause 7.
4.2.4 The height of the forage harvester (see ISO 8909-1:2021. 5.4), determined when the fuel tank contains fuel not exceeding 10 % of its capacity, shall only be given for self-propelled forage harvesters, with all components in the transport position and in the working position. The type of header mounted during measurements shall be indicated. If certain optional equipment influences machine height, this equipment, and its dimensions, shall be specified. The tyre size and inflation pressure shall be recorded on the test report in ISO 8909-3:202 1, Clause 7.
4.2.5 When the forage harvester spout discharge height (see ISO 8909-1:202 1, 5.5) is adjustable, the minimum and maximum heights shall he recorded on the test report given in ISO 8909-3:2021, Clause 7. The type of header mounted during measurements shall he indicated.
For self-propelled forage harvesters, the fuel tank shall contain fuel not exceeding 10 % of its capacity of fuel and the spout discharge height shall be in accordance with ISO 5715. The tyre size and inflation pressure shall be indicated.
For towed forage harvesters, the tractor tow bar height at the attachment point shall also be indicated, in millimetres.
4.2.6 The engine maximum power of self-propelled forage harvesters shall be determined in accordance with the standards or test codes mentioned in ISO 8909-1:202 1, 5.6.
4.2.7 The engine displacement of self-propelled forage harvesters shall be given, in litres to the nearest hundredth.
4.2.8 The turning diameter of self-propelled forage harvesters shall be determined, on a hard and level surface, in accordance with ISO 789-3, without applying the brakes. It shall be expressed in metres to the nearest hundredth. The wheelbase and the track width of the steered-wheels shall be indicated.
4.2.9 The clearance diameter of self-propelled forage harvesters shall be determined in accordance with 150 789-3, without applying the brakes, with the harvesting header completely raised, and with the same wheelbase and the track width of the steered-wheels indicated in 42.8. The clearance diameter shall be expressed in metres, to the nearest hundredth. If certain optional equipment influences this machine dimension, this equipment, and its dimensions, shall be recorded on the test report in ISO 8909-3:2021, Clause 7.
4.2.10 For tractor-mounted or towed forage harvesters, the PTO drive-shaft class and the PTO type shall be specified in accordance with ISO 500-1. The PTO rotational frequency (540 mm’1 or 1 000 mini) shall be given together with an indication of nominal power rating (see ISO 8909-1:202 1, 5.12).
The category of the tractor three-point hitch needed to raise and operate the machine shall be given in accordance with ISO 730.
4.2.11 The number of harvesting rows shall be indicated with the effective header harvesting width for row crops or maize headers (see ISO 8909-1:2021, 5.13). Where the width between harvesting headers is adjustable, the minimum and maximum distances between row axes shall be indicated, in millimetres. In this case, the effective minimum and maximum cutting widths shall be indicated.
4.2.12 The header theoretical cutting height (see ISO 8909-1:2021, 5.14) shall be determined, to the nearest 5 mm, for the minimum and maximum working heights, at the lowest and highest working points to which the cutting means may be raised or lowered by means of the normal lift mechanism, in accordance with the manufacturer’s instructions. The header type fitted at the time of measurement shall be indicated.
For towed forage harvesters, the tractor towbar height at the attachment point shall be indicated, in millimetres.
4.2.13 If optional equipment influences the mass of the header (see ISO 8909-1:2021, 5.15), it shall be recorded on the test report given in ISO 8909-3:2021, Clause 7.
4.2.14 Cutterbar frequency and stroke of oscillating scissor knives, determined at the furthest forward cutting edge in accordance with ISO 8909-1:202 1, 5.16 and 5.17 respectively, shall be recorded on the test report given in ISO 8909-3:202 1, Clause 7.
4.2.15 For cylindrical rotors, the following characteristics shall be indicated:
— number of knives passing a given point per cycle;
— rotational frequency, in revolutions per minute;
— rotor width and diameter, expressed in millimetres.ISO 8909-2 pdf download.