Terex is set to launch its new range of Stage 3B compliant articulated dump trucks (ADTs) which use Scania engines fitted with selective catalytic reduction (SCR).  Both the heavier ADTs (TA 400 and TA 350) will feature Scania’s 13 litre engines while the TA 300 and TA 250 will get the nine litre unit.

Terex’s global product manager for ADTs  George McNeil says the company considered engines from seven or eight manufacturers before selecting Scania. “Scania was a clear winner in terms of fuel efficiency, aftersales service and packaging requirements to fit the engines into our trucks,” he says.  In back to back test with the previous generation machines, the new ADTs use 10 per cent less fuel and are considerably quieter inside the cab.

The urea needed for the SCR system is stored in a tank adjacent to the main fuel tank and should typically need refilling once every for each 10 tanks full of diesel. “You can’t get the tanks mixed up because the diesel filler won’t fit into the [urea] tank,” says Mr McNeil.

All the engines will be fitted with exhaust brakes as well as a transmission retarder and all-round wet brakes are now standard across the range. Full-time 6x6 drive can be augmented with cross axle diff locks in tricky ground conditions.

The new generation ADTs have and a redesigned bonnet to improve forward visibility and also now house the headlights (repositioned from within the bumper) to keep them away from possible impact areas. The additional height also improves illumination. Behind the front grille the air intake has moved to the right hand and is angled to the side, which Mr McNeil says provides a considerable reduction in the amount of dust the air filters have to remove.

Inside the cab is a new instrument panel displaying real-time data including instantaneous and average fuel consumption and a trip counter. It also has improved diagnostics for fault finding in the various electronic control systems throughout the vehicle. To improve reliability the complete electrical system has been redesigned with fewer connections.

First to market is the TA 300 which also gets an improved ride as Terex’s independent coil-over front suspension is standard on the 30 ton (27 tonne) payload machine. Pre-production units are currently under test and full production is expected to start around mid June with the new TE 250 due to be introduced at the same time. Upgraded versions of the heavier TA 400 and TA 350 models are expected to start rolling off the production line in August.

http://www.cnplus.co.uk/technical/terex-to-launch-new-range-of-stage-3b-compliant-articulated-dump-trucks/8615397.article