The D7E differential steering, brakes, and final drives are similar to the D7R machines. However, in the D7E, the differential steering gears and brakes are now part of the propulsion module.
The steering/brake charge pump (1) provides charge oil to the steering pump (2) and also sends oil to the steering and brake charge manifold (3) and to the electronic brake control valve (4).
The steering pump sends oil to the steering motor (5), which drives a planetary gear set in the propulsion module to control machine steering.
The electronic brake control valve controls machine braking when commanded by the Machine ECM.
The propulsion module (6) contains two electric motors, a bull gear, brakes, and three planetary gear sets. The propulsion module transfers power to the final drives (7) and tracks.