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Differentials - 14081_61
Driving Wheels

Equipment Operator Basic - Beginning construction equipment operators manual
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controlled  manually  or  automatically.  The  differential lock locks one axle shaft to the differential case and bevel drive gear, forming a rigid connection between the two axle shafts that makes both wheels rotate at the same   speed. DRIVING AXLES Axles are classified as either live or dead. The live axle is used to transmit power. The dead axle supports part of the vehicle weight but does not drive the wheels. The wheels rotate on the ends of the dead axle. On rear wheel drive passenger cars, the front axle is a dead axle, and the rear axle is a live axle. In four-wheel drive vehicles, both front and rear axles are live axles, and in six-wheel drive vehicles, all three axles are live. Thee third axle, part of a bogie drive, is joined to the rearmost axle by a trunnion axle, as shown in figure 2-17. The trunnion axle is attached rigidly to the frame. Figure  2-17.—Bogie  drive. Figure  2-18.—Four-wheel  drive  transmission. 2-12







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