2002 CHRYSLER CARAVAN shaft

(24) Using Tool 6057 and an arbor press, compress
return OD/Reverse piston return spring just enough
to remove snap ring (Fig. 251) (Fig. 252).(25) Remove input shaft to input clutch hub snap
ring (Fig. 253).
(26) Using a suitably sized socket and an arbor
press, remove input shaft from input shaft hub (Fig.
254).
Fig. 251 Remove Snap Ring
1 - ARBOR PRESS RAM (COMPRESS RETURN SPRING JUST
ENOUGH TO REMOVE OR INSTALL SNAP RING)
2 - SCREWDRIVER
3 - SNAP RING
4 - SPECIAL TOOL 6057
5 - OD/REVERSE PISTON
6 - RETURN SPRING
Fig. 252 Snap Ring and Return Spring
1 - OD/REVERSE PISTON
2 - RETURN SPRING
3 - SNAP RING
4 - O-RING
Fig. 253 Remove Input Shaft Snap Ring
1 - INPUT SHAFT
2 - SHARP-POINTED TOOL
3 - SNAP RING
4 - O-RINGS
5 - SEALS
Fig. 254 Remove Input Shaft
1 - ARBOR PRESS RAM
2 - SOCKET
3 - SEAL
4 - O-RINGS
5 - INPUT SHAFT
6 - SEAL
7 - INPUT SHAFT HUB ASSEMBLY
21 - 262 41TE AUTOMATIC TRANSAXLERS
INPUT CLUTCH ASSEMBLY (Continued)
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ASSEMBLY
Use petrolatum on all seals to ease assembly of
components.
(1) Using an arbor press, install input shaft to
input shaft hub (Fig. 255).
(2) Install input shaft snap ring (Fig. 256).(3) Using an arbor press and Tool 6057, Install
OD/Reverse piston return spring and snap ring (Fig.
257) (Fig. 258).
Fig. 255 Install Input Shaft
1 - INPUT SHAFT
2 - ARBOR PRESS RAM
3 - INPUT SHAFT HUB ASSEMBLY
Fig. 256 Install Input Shaft Snap Ring
1 - INPUT SHAFT
2 - SCREWDRIVER (DO NOT SCRATCH BEARING SURFACE)
3 - SNAP RING
4 - O-RINGS
5 - SEALS
Fig. 257 Return Spring and Snap Ring
1 - OD/REVERSE PISTON
2 - RETURN SPRING
3 - SNAP RING
4 - O-RING
Fig. 258 Install Snap Ring
1 - ARBOR PRESS RAM (COMPRESS RETURN SPRING JUST
ENOUGH TO REMOVE OR INSTALL SNAP RING)
2 - SCREWDRIVER
3 - SNAP RING
4 - SPECIAL TOOL 6057
5 - OD/REVERSE PISTON
6 - RETURN SPRING
RS41TE AUTOMATIC TRANSAXLE21 - 263
INPUT CLUTCH ASSEMBLY (Continued)
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(4) Install the OD/Reverse piston assembly to the
input clutch retainer as shown in (Fig. 259).
(5) Install the input hub/shaft assy. to the OD/Re-
verse piston/clutch retainer assy. (Fig. 260).(6) Install input hub tapered snap ring (Fig. 261).
(7) Install UD clutch piston (Fig. 262).
Fig. 259 Install OD/Reverse Piston
1 - PUSH DOWN TO INSTALL OVERDRIVE/REVERSE PISTON
2 - INPUT CLUTCHES RETAINER
Fig. 260 Install Input Shaft Hub Assembly
1 - PUSH DOWN TO INSTALL INPUT SHAFT HUB ASSEMBLY
(ROTATE TO ALIGN SPLINES)
2 - OD/REV. PISTON
Fig. 261 Install Input Hub Tapered Snap Ring
1 - INPUT SHAFT
2 - INPUT HUB SNAP RING (TAPERED SIDE UP WITH TABS IN
CAVITY)
3 - SNAP RING PLIERS
Fig. 262 Underdrive Clutch Piston
1 - PISTON
21 - 264 41TE AUTOMATIC TRANSAXLERS
INPUT CLUTCH ASSEMBLY (Continued)
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(8) Install UD piston return spring and Tool 5067
as shown in (Fig. 263).
(9) Using Tool 5059A and an arbor press, Install
the UD spring retainer and snap ring. (Fig. 264) (Fig.
265) Compress just enough to install snap ring.
CAUTION: Compress return spring just enough to
install snap ring.(10) Install the UD clutch pack. Leave out upper
disc, until snap ring is installed (Fig. 266).
Fig. 263 Seal Compressor Special Tool 5067
1 - PISTON RETURN SPRING
2 - SPECIAL TOOL 5067
3 - INPUT SHAFT CLUTCHES RETAINER ASSEMBLY
Fig. 264 UD Return Spring and Retainer
1 - UNDERDRIVE SPRING RETAINER
2 - SNAP RING
3 - SEAL
4 - PISTON RETURN SPRING
Fig. 265 Install UD Spring Retainer and Snap Ring
1 - ARBOR PRESS RAM
2 - SNAP RING PLIERS
3 - SNAP RING
4 - OD/REVERSE PISTON
5 - TOOL 5067
6 - TOOL 5059A
Fig. 266 Underdrive Clutch Pack
1 - CLUTCH PLATE
2 - ONE UD CLUTCH DISC
3 - CLUTCH DISC
RS41TE AUTOMATIC TRANSAXLE21 - 265
INPUT CLUTCH ASSEMBLY (Continued)
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(34) Apply 30 psi (206 kPa) air pressure to the
reverse clutch hose on Tool 8391. Measure and record
reverse clutch pack measurement in four (4) places,
90É apart.
(35) Take average of four measurements and com-
pare with reverse clutch pack clearance specification.
The reverse clutch pack clearance is 0.89-1.37
mm (0.035-0.054 in.).Select the proper reverse
clutch snap ring to achieve specifications:
REVERSE CLUTCH SNAP RING THICKNESS
4377195 1.53-1.58 mm (0.060-0.062 in.)
4412871 1.77-1.83 mm (0.070-0.072 in.)
4412872 2.02-2.07 mm (0.080-0.082 in.)
4412873 2.27-2.32 mm (0.090-0.091 in.)
(36) To complete the assembly, reverse clutch and
overdrive clutch must be removed.
(37) Install the #2 needle bearing (Fig. 286).
(38) Install the underdrive shaft assembly (Fig.
287).
(39) Install the #3 thrust washer to the underdrive
shaft assembly. Be sure five tabs are seated properly
(Fig. 288).
(40) Install the #3 thrust plate to the bottom of the
overdrive shaft assembly. Retain with petrolatum or
transmission assembly gel (Fig. 289).
Fig. 287 Install Underdrive Shaft Assembly
1 - UNDERDRIVE SHAFT ASSEMBLY
2 - #2 NEEDLE BEARING
Fig. 288 Install No. 3 Thrust Washer
1 - #3 THRUST WASHER (NOTE 5 TABS)
2 - UNDERDRIVE SHAFT ASSEMBLY
Fig. 289 Install No. 3 Thrust Plate
1 - OVERDRIVE SHAFT ASSEMBLY
2 - DABS OF PETROLATUM (FOR RETENTION)
3 - #3 THRUST PLATE (NOTE 3 TABS)
Fig. 286 Install No. 2 Needle Bearing
1 - #2 NEEDLE BEARING (NOTE 3 SMALL TABS)
2 - TABS UP
RS41TE AUTOMATIC TRANSAXLE21 - 271
INPUT CLUTCH ASSEMBLY (Continued)
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(41) Install the overdrive shaft assembly (Fig.
290).
(42) Reinstall overdrive and reverse clutch as
shown.Rechecking these clutch clearances is
not necessary.
OIL PUMP
DESCRIPTION
The oil pump is located in the pump housing inside
the bell housing of the transaxle case (Fig. 291). The
oil pump consists of an inner and outer gear, a hous-
ing, and a cover that also serves as the reaction shaft
support.
OPERATION
As the torque converter rotates, the converter hub
rotates the inner and outer gears. As the gears
rotate, the clearance between the gear teeth
increases in the crescent area, and creates a suction
at the inlet side of the pump. This suction draws
fluid through the pump inlet from the oil pan. As the
clearance between the gear teeth in the crescent area
decreases, it forces pressurized fluid into the pump
outlet and to the valve body.
STANDARD PROCEDURE - OIL PUMP VOLUME
CHECK
Measuring oil pump output volume will determine
if sufficient flow to the transmission oil cooler exists,
and whether or not an internal transmission failure
is present.
Verify that transmission fluid is at the proper
level. If adding fluid is necessary, fill to the properlevel with MopartATF+4 (Automatic Transmission
Fluid±Type 9602). The following procedure is to
check oil pump output volume:
(1) Using hose cutters or a suitable blade, cut the
ªto coolerº (Fig. 292) line off flush with the cooler
inlet fitting and place a collection container under
the open line.
Fig. 290 Install Overdrive Shaft Assembly
1 - OVERDRIVE SHAFT ASSEMBLY
2 - #3 THRUST PLATE
3 - #3 THRUST WASHER
Fig. 291 Oil Pump Assembly
1 - PUMP HOUSING
2 - OUTER PUMP GEAR
3 - INNER PUMP GEAR
4 - REACTION SHAFT SUPPORT
5 - SEAL RINGS (4)
6 - REACTION SHAFT
7 - CRESCENT
Fig. 292 Transaxle Oil Cooler Fittings
1 - FROM COOLER
2 - TO COOLER
21 - 272 41TE AUTOMATIC TRANSAXLERS
INPUT CLUTCH ASSEMBLY (Continued)
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CAUTION: With the fluid set at the proper level,
fluid collection should not exceed (1) quart or inter-
nal damage to the transmission may occur.
(2) Start engine and runat curb idle speed, with
the shift selector in neutral.
(3) If one quart of ATF is collected in 20 seconds or
less, flow is within acceptable limits. If fluid flow is
intermittent or it takes more than 20 seconds to col-
lect one quart of ATF, (Refer to 21 - TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 41TE -
DIAGNOSIS AND TESTING).
(4) Inspect the cooler hose for damage. Replace if
necessary.
(5) Re-connect the to cooler line to the transmis-
sion using a service splice kit. Refer to instructions
inclued with the kit.
(6) Refill the transaxle to proper level with
MopartATF+4 (Automatic Transmission Fluid±Type
9602).
DISASSEMBLY
When disassembling the transaxle it is necessary
to inspect the oil pump for wear and damage.
(1) Remove the reaction shaft support bolts.
(2) Remove reaction shaft support from pump
housing (Fig. 293).
(3) Remove the pump gears (Fig. 294) and check
for wear and damage on pump housing and gears.
(4) Re-install the gears and check clearances.
(5) Measure the clearance between the outer gear
and the pump pocket (Fig. 295). Clearance should be
0.089±0.202 mm (0.0035-0.0079 in.).(6) Measure clearance between outer gear and
crescent. Clearance should be 0.060-0.298 mm
(0.0023-0.0117 in.).
(7) Measure clearance between inner gear and
crescent. Clearance should be 0.093-0.385 mm
(0.0036-0.0151 in.).
Fig. 293 Reaction Shaft Support
1 - PUMP HOUSING
2 - REACTION SHAFT SUPPORT
3 - PUMP GEARS
Fig. 294 Oil Pump Assembly
1 - PUMP HOUSING
2 - OUTER PUMP GEAR
3 - INNER PUMP GEAR
4 - REACTION SHAFT SUPPORT
5 - SEAL RINGS (4)
6 - REACTION SHAFT
7 - CRESCENT
Fig. 295 Measure Outer Gear to Pocket
1 - OUTER GEAR
2 - POCKET
RS41TE AUTOMATIC TRANSAXLE21 - 273
OIL PUMP (Continued)
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(8) Position an appropriate piece of Plastigage
across both pump gears.
(9) Align the Plastigage to a flat area on the reac-
tion shaft support housing.
(10) Install the reaction shaft to the pump hous-
ing. Tighten the bolts to 27 N´m (20 ft. lbs.).
(11) Remove bolts and carefully separate the hous-
ings. Measure the Plastigage following the instruc-
tions supplied.
(12) Clearance between outer gear side and the
reaction shaft support should be 0.020-0.046 mm
(0.0008-0.0018 in.). Clearance between inner gear
side and the reaction shaft support should be 0.020-
0.046 mm (0.0008-0.0018 in.).
ASSEMBLY
(1) Assemble oil pump as shown in (Fig. 296)
(2) Install and torque reaction shaft support-to-oil
pump housing bolts to 28 N´m (20 ft. lbs.) torque.
PLANETARY GEARTRAIN
DESCRIPTION
The planetary geartrain is located between the
input clutch assembly and the rear of the transaxle
case. The planetary geartrain consists of two sun
gears, two planetary carriers, two annulus (ring)
gears, and one output shaft (Fig. 297).
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.
Fig. 296 Oil Pump Assembly
1 - PUMP HOUSING
2 - OUTER PUMP GEAR
3 - INNER PUMP GEAR
4 - REACTION SHAFT SUPPORT
5 - SEAL RINGS (4)
6 - REACTION SHAFT
7 - CRESCENT
Fig. 297 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
21 - 274 41TE AUTOMATIC TRANSAXLERS
OIL PUMP (Continued)
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