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Vvt VVT (built 2009) - an EU class O4 trailer: gross weight 61,000 kg, kerb weight 15,100 kg and width 2,550 mm, running on 16 wheels
With a gross weight of 61,000 kg, the VVT belongs to EU trailer class O4, the heavy trailers and semi-trailers above 10 tonnes hauled in long-distance and heavy-haulage traffic behind suitably powerful tractor units.
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The gross weight is 61,000 kg and the kerb weight is 15,100 kg, which leaves a payload of 45,900 kg. The width is 2,550 mm. Added to that: the running gear carries 16 wheels.
Trailers of this weight class belong to heavy and long-distance haulage, hauled behind tractor units or heavy truck combinations. The compressed-air brake system, with automatic load-sensing, adjusts braking force to the load carried, and the axles carry the high payload on suitably rated suspension. With 16 wheels, the payload is spread across several axles, which such heavy semi-trailers need in order to keep the load on each axle within its allowed limit. On the road, a valid periodic roadworthiness inspection is mandatory, as is working lighting, regardless of how old the chassis itself is.
Buying used, the brake system and air lines deserve close attention: brake chambers, the load-sensing valve and coupling heads should be tight and free of corrosion. Check the chassis for rust at cross-members and axle mounts, the axle bearings for play, and the suspension for cracks. Tyres, brake linings and the electrical connector to the towing vehicle round off the check, and on older examples the lashing points and the load floor as well. Checking any surviving service records alongside the condition of the brake drums or discs and the wheel bearings rounds off a thorough inspection before any purchase.
Sources: SpecCodex-Register: Kennwerte des Modells VVT
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