Allison Transmission > Commercial Products > Maneuverability
Maneuverability
Easy to Drive
Even inexperienced drivers can drive an Allison Automatic-equipped vehicle with only minimal instruction. Many drivers say it’s like operating their passenger car. This gives fleet managers and trainers more time to teach things like route sales, materials handling or other job functions. Spending the day behind the wheel is less demanding than a manual-equipped vehicle since there’s no clutch pedal to operate or gears to shift. With no manually applied clutch and no power interrupts to deal with, Allison Automatics reduce driver fatigue. And, with superior vehicle control under all conditions, they help reduce driver stress. Drivers have more time to check the mirrors and look forward and behind. There simply aren’t as many distractions and that gives drivers more time to do what’s necessary – being safe on the road.
Startability
Startabilty is a vehicle’s capability to launch and pull a load. Simply put, it’s the ‘grunt’ or ‘get-up-and-go’ of a truck. Often only 1st gear ratio is used to judge a vehicle’s startability. The truth is, one has to consider the engine torque at the required launch rpm and the torque multiplication of the Allison torque converter. Manual and automated manual transmissions have to launch at very low engine rpm in order to prevent damage to the clutch. This means less torque, which is why they have very deep 1st gear ratios to help them overcome their clutch limitations. An Allison Automatic uses the full torque from the engine and multiplies it with the torque converter. When the 1st gear ratio and the rear axle ratio are factored in, an Allison often provides greater startability.
2nd Reverse
Allison’s new 2nd Reverse offers a second “deep reverse” in addition to the standard reverse. It provides overall better performance and enhanced applicability for a variety of applications.
- Greater control and engine braking during operation on steep grades
- More maneuverability when operating in confined spaces
- Slow creep capability with high engine speeds
- 17.12 mechanical ratio with effective torque converter multiplied ratio up to 32.5:1
Available on 4700 and 4800 models of the following Vocational Models:
