ALLISON

MERCEDES-BENZ URBAN WITH FRONT ENGINE AND ALLISON TRANSMISSION WAS PRESENTED IN ARGENTINA...The OF 1621 features an Allison T270 transmission with retarder to extend brake life and significantly reduce maintenance costsMercedes-Benz Argentina and its official COLCAR dealer have joined Allison to develop a new bus for public passenger transport. The front-engine OF 1621 chassis received a fully automatic transmission model T270, which has a retarder to extend the life of the brakes.Allison engines use the torque converter to transfer engine power and torque to the wheels, so they require only periodic fluid and filter changes to maintain maximum performance. The manuals and automated ones depend on the clutch, which wears out over time and requires longer vehicle downtime for maintenance. The T270's hydraulic retarder further reduces downtime by up to four times the brake life.During its development, the bus was used by Nueva Metropol on the route between José C. Paz and Saavedra. After 168,000 km rolled, the rear brake linings of the bus still had 1.3 mm of braking material. In order to cover the same distance, the manual would have carried out the following maintenance work: six exchanges of tarpaulins and two exchanges of drum for the rear brakes, two clutch exchanges and five exchanges of lubricating oil.

Considering the structural, personnel, logistics and parts costs for a fleet, maintenance between a bus equipped with a manual transmission compared to one that has fully automatic transmission with retarder is significant: the automakers generate annual savings of $ 4,277 per unit, equivalent to $ 25,662 in six years - or more than $ 2.5 million for a fleet of 100 units.The bus is equipped with a Mercedes-Benz OM 924 LA engine, with 208 hp of power and maximum torque of 780 Nm, which complies with Euro V pollutant emissions standards. Its electronic injection system ensures maximum performance with reduced fuel consumption high torque at low engine speeds.Allison's automatic are designed to provide greater reliability and durability, helping to protect the vehicle's transmission system. With Continuous Power Technology, drivers achieve faster acceleration, greater operational flexibility and increased productivity. This also allows Allison transmissions to outperform automated manual and manual transmissions (AMTs), which interrupt the transmission of power and torque at every shift - resulting in wasted time and fuel.The Allison automatic also helps the fleets potentially expand their cadre of drivers. Today's drivers, less familiar with manual models, benefit from fully automatic versions, which are easier to operate. Even the most experienced ones benefit from more precise and safe handling with greater comfort.

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