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722.6 TECHNICAL SERVICE INFORMATION

722.6 TECHNICAL SERVICE INFORMATION

722.6 TECHNICAL SERVICE INFORMATION

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TURBINE<br />

SHAFT<br />

<strong>TECHNICAL</strong> <strong>SERVICE</strong> <strong>INFORMATION</strong><br />

B1<br />

"ON"<br />

K1 K2<br />

F1<br />

"holding"<br />

Figure 83<br />

Automatic Transmission Service Group<br />

50<br />

Reverse Standard Selection<br />

opposite<br />

rotation<br />

K3<br />

"ON"<br />

B3<br />

"ON"<br />

B2<br />

F2<br />

"freewheeling"<br />

Summary: The turbine shaft drives the front planetary ring gear. The B1 brake is turned on.<br />

This locks the K1 drum, which is connected to the front planetary assembly's sun gear (which<br />

prevents the F1 freewheel from overrunning). This forces the front planetary carrier to rotate<br />

around the held front sun gear. The B3 brake is on to lock the rear carrier and center<br />

planetary ring gear. The K3 clutch is on which locks the rear and center planetary sun gears.<br />

The front planetary ring gear is linked to the rear planetary ring gear, (thru the rotating front<br />

planetary carrier), which forces the rear planetary sun gear to turn in the opposite rotation of<br />

the engine. Now the center planetary sun gear can drive the center planetary carrier, which is<br />

the output shaft, at a reduced speed opposite of engine rotation.<br />

SIMPLIFIED<br />

FRONT PLANETARY<br />

ASSEMBLY IN REDUCTION<br />

REAR AND CENTER SUN GEARS<br />

DRIVING CENTER CARRIER AND<br />

OUTPUT SHAFT IN A REVERSAL

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