The new design replaces the older 6610 and uses greater digital control to deliver sharper torque "response" through the driveline, which has necessitated upgrades to protect the drivetrain.
For the flywheel, the use of FEA identified an opportunity to modify fillet radii and introduce heat treatment and reduce stress. Case hardening and nitriding other interfacing components such as the turbine shaft and hub, together with increasing the shaft's diameter, is expected to increase their fatigue durability by over six times. Extensive in-field comparative testing has identified a significantly more durable bronze-based material for use in the lock up clutch.
The opportunity to "tune" the transmission to an operator's specific requirement is now easier, permitting increased performance or economy depending on the duty-cycle or application.
