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Jasa V3-36/12-850 – EU category O4 trailer, built 1992: 36,000 kg gross weight, 28,700 kg payload, 8.50 m length, 2.50 m width.
With a gross weight of 36,000 kg, the Jasa V3-36/12-850 belongs to the EU trailer category O4, the heavy trailers above 10 tonnes. Built in 1992, it is one of the older vehicles of this weight class recorded in the register.
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With an unladen weight of 7,300 kg, the payload comes to 28,700 kg. At only 8.50 m long and 2.50 m wide, this high payload is concentrated over a comparatively short length, a design typical of heavy, compact goods such as building materials, bulk cargo or machine parts, where weight reaches the limit faster than load volume.
Category O4 trailers are generally fitted with an air brake system across several axles. Towing in a combination requires licence category C1E or CE in the EU, depending on the combination's gross weight. The short, compact build combined with high payload calls for a correspondingly strong frame and axle construction, since the load sits close together rather than spread along a long deck.
When buying a used trailer from the 1992 build year, given its age, the frame around the axle mounts deserves particular attention for cracking and rust. The checklist should also cover the axle bearings and their suspension given the high payload, the air lines and couplings for leaks, and the tyres for even loading, since they carry a particularly heavy burden given the short build and high weight. Welds around the drawbar mount are worth a close look too, given the concentrated load.
Sources: SpecCodex-Register: Kennwerte des Modells Jasa V3-36/12-850, Zulassungsdaten Traficom (Finnland)
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