Translation of "dispositif de centrage forcé " (French → English) :

On the side of the self-propelled machinery (or tractor), the power take-off to which the removable mechanical transmission device is attached must be protected either by a guard fixed and linked to the self-propelled machinery (or tractor) or by any other device offering equivalent protection.

made in such a way as to withstand foreseeable forces; particular attention must be paid to emergency stop devices liable to be subjected to considerable forces.

(g) pumps incorporating measuring devices, of heading No ; weight-operated counting and checking machinery, or separately presented weights for balances (heading No ); lifting or handling machinery (heading Nos to ); paper or paperboard cutting machines of all kinds (heading No ); fittings for adjusting work or tools on machine-tools, of heading No , including fittings with optical devices for reading the scale (for example, "optical" dividing heads) but not those which are in themselves essentially optical instruments (for example, alignment telescopes); calculating machines (heading No ); valves and other appliances (heading No ) ...[+++];

There is no need to measure the force and deflection at the point where the load is applied to the structure; however, 'force' and 'deflection' must be measured simultaneously and co-linearly.

(f) Pumps incorporating measuring devices, of heading No 84.13 ; weight-operated counting and checking machinery, or separately presented weights for balances (heading No 84.23) ; lifting or handling machinery (heading Nos 84.25 to 84.28) ; paper or paperboard cutting machines of all kinds (heading No 84.41) ; fittings for adjusting work or tools on machine-tools, of heading No 84.66, including fittings with optical devices for reading the scale (for example, "optical" dividing heads) but not those which are in themselves essentially optical instruments (for example, alignment telescopes) ; calculating machines (heading No 84.70) ; ...[+++] valves and other appliances (heading No 84.81);

1.3.4.The pendulum block shall be pulled back so that the height of its centre of gravity above that at the point of impact is given by one of the following two formulae, to be chosen according to the reference mass of the tractors subjected to the tests:H = 25 + 0,20 mt for tractors with a reference mass of less than 2 000 kilograms,H = 125 + 0,15 mt for tractors with a reference mass of more than 2 000 kilograms.The pendulum block must then be released so as to strike the protection structure.1.4.Crushing at the rearThe beam shall be positioned over the rear uppermost structural member(s) and the resultant of the crushing ...[+++]forces shall be located in the tractor's median plane.A force, Fv = 20 mt shall be applied.Where the rear part of the protection structure roof will not sustain the full crushing force, the force shall be applied until the roof is deflected to coincide with the plane joining the upper part of the protection structure with that part of the rear of the tractor capable of supporting the vehicle's mass when overturned.The force shall then be removed, and the tractor or loading force repositioned so that the beam is over that point of the protection structure which would then support the tractor when completely overturned.The force Fv shall then be applied.It shall be applied for a minimum of five seconds following the cessation of any visually detectable deflection.1.5.Crushing at the frontThe beam shall be positioned over the front uppermost structural member(s) and the resultant of the crushing forces shall be located in the tractor's median plane.A force, Fv = 20 mt shall be applied.Where the front part of the protection structure roof will not sustain the full crushing force, the force shall be applied until the roof is deflected to coincide with the plane joining the upper part of the protection structure with that part of the front of the tractor capable of supporting the vehicle's mass when overturned.The force shall then be removed, and the t ...