Installation; Planetary Geartrain Description; Operation; Seal - Oil Pump Removal - Chrysler Vehicle User Manual

TJ
OVERDRIVE SWITCH (Continued)

INSTALLATION

(1) Install the overdrive off switch to the accessory
switch bezel.
(2) Install the accesory switch bezel (Refer to 23 -
BODY/INSTRUMENT
SWITCH BEZEL - INSTALLATION).
PLANETARY GEARTRAIN
DESCRIPTION
The planetary geartrain is located between the
input clutch assembly and the rear of the transmis-
sion case. The planetary geartrain consists of two
sun gears, two planetary carriers, two annulus (ring)
gears, and one output shaft (Fig. 234).
Fig. 234 Planetary Geartrain
1 - FRONT SUN GEAR ASSEMBLY
2 - #6 THRUST BEARING
3 - #7 THRUST BEARING
4 - REAR CARRIER FRONT ANNULUS ASSEMBLY
5 - REAR SUN GEAR
6 - FRONT CARRIER REAR ANNULUS ASSEMBLY

OPERATION

The planetary geartrain utilizes two planetary gear
sets that connect the transmission input shaft to the
output shaft. Input and holding clutches drive or lock
different planetary members to change output ratio
or direction.
SEAL - OIL PUMP
REMOVAL
(1) Remove the transmission from the vehicle
(Refer to 21 - TRANSMISSION/AUTOMATIC -
42RLE - REMOVAL).
(2) Remove the torque converter from the trans-
mission bellhousing.
(3) Use special tool C-3981B to remove oil pump
seal.
PANEL/ACCESSORY
AUTOMATIC TRANSMISSION - 42RLE

INSTALLATION

(1) Clean and inspect oil pump seal seat. Then
install seal using special tool C-4193-A.
(2) Clean and inspect torque converter hub. If
nicks, scratches or hub wear are found, torque con-
verter replacement will be required.
CAUTION: If the torque converter is being replaced,
apply a light coating of grease to the crankshaft
pilot hole. Also inspect the engine drive plate for
cracks. If any cracks are found replace the drive
plate. Do not attempt to repair a cracked drive plate.
Always use new torque converter to drive plate
bolts.
(3) Apply a light film of transmission oil to the
torque converter hub and oil seal lips. Then install
torque converter into transmission. Be sure that the
hub lugs mesh with the front pump lugs when
installing.
(4) Reinstall the transmission into the vehicle.
SHIFT MECHANISM
DESCRIPTION
The shift mechanism is cable operated and pro-
vides six shift positions. The shift indicator is located
on the console next to the gear shift. The shift posi-
tions are:
• Park (P)
• Reverse (R)
• Neutral (N)
• Drive (D)
• Manual Second (2)
• Manual Low (1)

OPERATION

Manual low (1) range provides first gear only. Over
run braking is also provided in this range. Manual
second (2) range provides first and second gear only.
Drive range provides first, second, and third gear
ranges.
DIAGNOSIS AND TESTING - SHIFT
MECHANISM
(1) The floor shifter lever and gate positions
should be in alignment with all transmission PARK,
NEUTRAL, and gear detent positions.
(2) Engine starts must be possible with floor shift
lever in PARK or NEUTRAL gate positions only.
Engine starts must not be possible in any other gear
position.
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