As part of an continuing product optimization initiative, Allison Transmission has introduce a second overturn gear on all its 4700 and 4800 models for the 2010 model year. This offer a second bottomless reverse in adding to the standard reverse to provide better control and engine braking throughout operation on steep grades. 2nd Reverse should also allow improved maneuverability when operating in confined spaces, allowing earlier operation cycles and thereby boosting efficiency act.

Customers in mining in exacting will be grateful for the provision of a deeper reverse gear, says Larry Love. The shorter ratio of 2nd Reverse will build up and downhill reverse much safer and easier in serious duty application, giving drivers additional assurance. This is one more reason to identify an Allison fully automatic transmission, complement features such as our adaptive Electronic Control Systems and integral retarded that aim to get better comfort and efficiency for drivers and operators.

When a vehicle is in 2nd turn around, it will have a sluggish creep capability with high engine speed. With a mechanical relation of 17.12, it will have an effectual torque converter multiplied ratio positive to 32.5:1