Fig. 5: 1st Gear Power Flow
Courtesy of CHRYSLER LLC
In First gear, the UD clutch (1) is applied to provide input torque. The UD hub is splined to the rear sun gear.
When the UD clutch is applied, the UD hub and rear sun gear are driven. The L/R clutch (2) is applied to hold
the front carrier/rear annulus assembly. By doing so, the rear planet gears are forced to rotate around the inside
of the stationary rear annulus. The rear carrier/front annulus assembly rotates as an output member with a
reduction gear ratio of 2.84:1.
Power from the main centerline transfers to the underdrive compounder annulus by way of the transfer gears
and the underdrive shaft. The Overrunning Clutch (ORC) holds the underdrive sun gear. The LC (3) is also
applied during coast in first gear. With the sun gear held, the annulus drives the underdrive compounder carrier,
and a reduction gear ratio of 1.45:1 is achieved by the underdrive compounder gear set.
The main centerline ratio of 2.84:1 is multiplied by the underdrive compounder centerline ratio of 1.45:1. As a
result, the ratio through the entire gear train to the final drive in First gear is 4.127:1.
SECOND GEAR
2009 Chrysler Town & Country LX
2009 AUTOMATIC TRANSMISSION 62TE - Service Information - Grand Caravan, Town & Country
steve
Monday, May 23, 2011 1:26:07 PM Page 6 © 2006 Mitchell Repair Information Company, LLC.
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