References
ReferenceDisassembly and Assembly, "D6R Series III Track-Type Tractor Power Train"
Note: If the information in the above service module does not match the information in this service module, then compare the printing date on each service module. Use the information that is printed in the service module with the latest date.
Primary Power Train Components
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| Illustration 1 | g01221119 |
Power Train Components (1) Steering differential and brake (2) Final drive (3) Engine (4) Tracks (5) Torque converter (6) Drive shaft (7) Bevel and transfer gears (8) Power shift transmission (9) Planetary gears and brake | |
Transfer of Mechanical Power
Engine (3) is the source of the mechanical power. Power flows from engine (3) to tracks (4) through the power train: torque converter (5), drive shaft (6), power shift transmission (8), bevel and transfer gears (7), steering differential and brake (1), planetary gears and brake (9) and final drives (2) .
Engine (3) transfers power from the engine flywheel to torque converter (5) .
Torque converter (5) transfers power through the planetary gears and through the torque converter turbine to drive shaft (6). Torque converter (5) consists of a planetary gear arrangement and a torque converter. The planetary gears are a mechanical connection and the torque converter is a hydraulic connection.
Drive shaft (6) transfers power to transmission (8). Transmission (8) has three speeds in the FORWARD position and three speeds in the REVERSE position.
The speed clutches and the direction clutches are electronically controlled. The clutches engage in order to transfer power. The power output from transmission (8) turns bevel and transfer gears (7) .
Bevel and transfer gears (7) turn the inner axle shaft. The inner axle shaft sends power to the steering differential and brake (1). The inner axle shaft sends power to the planetary gears and brake (9) .
The steering differential is used to turn the machine. The brakes are used to stop the machine. The steering differential and brake (1) works with the planetary gears and brake (9) in order to send power through the two outer axle shafts to final drives (2) .
Final drives (2) use a planetary gear arrangement for a speed reduction. The planetary gears increase the torque. The sprockets on the final drives transfer mechanical power to tracks (4) that move the machine.