Jeep XJ. Manual — part 413
(9) Hold sun gear in place and install thrust plate
over sun gear at rear of driving shell (Fig. 207).
(10) Position wood block on bench and support sun
gear on block (Fig. 208). This makes it easier to align
and install sun gear lock ring. Keep wood block
handy as it will also be used for geartrain end play
check.
(11) Align rear thrust plate on driving shell and
install sun gear lock ring. Be sure ring is fully seated
in sun gear ring groove (Fig. 209).
(12) Install assembled driving shell and sun gear
on output shaft (Fig. 210).
(13) Install rear thrust washer on front planetary
gear (Fig. 211). Use enough petroleum jelly to hold
washer in place and be sure all four washer tabs are
seated.
Fig. 207 Installing Driving Shell Rear Thrust Plate
1 – DRIVING SHELL
2 – SUN GEAR
3 – REAR THRUST PLATE
Fig. 206 Installing Driving Shell Front Thrust Plate
On Sun Gear
1 – SPACER
2 – SUN GEAR
3 – THRUST PLATE
Fig. 208 Supporting Sun Gear On Wood Block
1 – SUN GEAR
2 – DRIVING SHELL
3 – WOOD BLOCK
Fig. 209 Installing Sun Gear Lock Ring
1 – LOCK RING GROOVE
2 – SUN GEAR LOCK RING
3 – DRIVING SHELL
4 – REAR THRUST PLATE
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AUTOMATIC TRANSMISSION—30RH
XJ
DISASSEMBLY AND ASSEMBLY (Continued)
(14) Install front planetary gear on output shaft
and in driving shell (Fig. 212).
(15) Install front thrust washer on front planetary
gear. Use enough petroleum jelly to hold washer in
place and be sure all four washer tabs are seated.
(16) Assemble front annulus gear and support, if
necessary. Be sure support snap ring is seated.
(17) Install front annulus on front planetary (Fig.
212).
(18) Position thrust plate on front annulus gear
support (Fig. 213). Note that plate has two tabs
on it. These tabs fit in notches of annulus hub.
(19) Install thrust washer in front annulus (Fig.
214). Align flat on washer with flat on planetary
hub. Also be sure washer tab is facing up.
(20) Install front annulus snap ring (Fig. 215). Use
snap ring pliers to avoid distorting ring during
installation. Also be sure ring is fully seated.
(21) Install planetary selective snap ring with
snap ring pliers (Fig. 216). Be sure ring is fully
seated.
(22) Turn planetary geartrain assembly over so
driving shell is facing workbench. Then support
geartrain on wood block positioned under forward
end of output shaft. This allows geartrain compo-
nents to move forward for accurate end play check.
(23) Check planetary geartrain end play with
feeler gauge (Fig. 217). Gauge goes between shoulder
on output shaft and end of rear annulus support.
Fig. 210 Installing Assembled Sun Gear And Driving
Shell On Output Shaft
1 – SUN GEAR/DRIVING SHELL ASSEMBLY
2 – OUTPUT SHAFT
Fig. 212 Installing Front Planetary And Annulus
Gears
1 – FRONT PLANETARY GEAR
2 – FRONT THRUST WASHER
3 – FRONT ANNULUS GEAR
Fig. 213 Positioning Thrust Plate On Front Annulus
Support
1 – FRONT ANNULUS
2 – THRUST PLATE
Fig. 211 Installing Rear Thrust Washer On Front
Planetary Gear
1 – FRONT PLANETARY GEAR
2 – REAR TABBED THRUST WASHER
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AUTOMATIC TRANSMISSION—30RH
21 - 189
DISASSEMBLY AND ASSEMBLY (Continued)
(24) Geartrain end play should be 0.12 to 1.22 mm
(0.005 to 0.048 in.). If end play is incorrect, snap ring
(or thrust washers) may have to be replaced. Snap
ring is available in three different thicknesses for
adjustment purposes.
Fig. 214 Installing Front Annulus Thrust Washer
1 – WASHER FLAT ALIGNS WITH FLAT ON PLANETARY HUB
2 – FRONT ANNULUS THRUST WASHER
3 – TAB FACES FRONT
Fig. 215 Installing Front Annulus Snap Ring
1 – SNAP RING PLIERS
2 – FRONT ANNULUS SNAP RING
Fig. 216 Installing Planetary Selective Snap Ring
1 – SELECTIVE SNAP RING
2 – SNAP RING PLIERS
Fig. 217 Checking Planetary Geartrain End Play
1 – OUTPUT SHAFT
2 – REAR ANNULUS GEAR
3 – FEELER GAUGE
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DISASSEMBLY AND ASSEMBLY (Continued)
CLEANING AND INSPECTION
GOVERNOR AND PARK GEAR
Thoroughly clean all the governor parts in a suit-
able cleaning solution but do not use any type of
caustic cleaning agents.
The governor weight components (Fig. 218) and the
governor valve (Fig. 219), must slide freely in their
bores when clean and dry. Minor surface scratches
and burrs can be smoothed with crocus cloth.
The aluminum governor valve and outer weight
have a hard coating on them. Check condition of this
coating carefully. Do not reuse either part if the coat-
ing is damaged.
Inspect the governor weight spring for distortion.
Replace the spring, if distorted, collapsed, or broken.
Clean the filter in solvent and dry it with compressed
air. Replace the filter, if damaged. Inspect the park
gear for chipped or worn gear teeth or damaged ring
grooves. Replace the gear, if damaged.
Check the teeth on the park gear for wear or dam-
age. Replace the gear if necessary. Inspect the metal
seal rings on the park gear hub. Replace the rings
only if severely worn, or broken.
EXTENSION HOUSING AND PARK LOCK
Clean the housing and park lock components in
solvent and dry them with compressed air.
Examine the park lock components in the housing.
If replacement is necessary, remove the shaft with
parallel jaw snap ring pliers (Fig. 220) and remove
the sprag and spring. Then remove the spring clip
and reaction plug (Fig. 221). Compress the reac-
tion plug spring clip only enough to remove
and install it. Do not distort the clip during
removal or installation.
Be sure a replacement sprag is installed so the
sprag locking lug will face the park gear (Fig. 222).
Also be sure the spring is correctly positioned as
shown (Fig. 222). The sprag may not retract if the
spring is improperly installed.
VALVE BODY
Serviceable valve body components are:
• park lock rod and E-clip
• switch valve and spring
• pressure adjusting screw bracket
• throttle valve lever
• manual lever
• manual lever shaft seal, washer, E-clip and
detent ball
• fluid filter
• converter clutch solenoid
The remaining valve body components are serviced
only as part of a complete valve body assembly.
Fig. 218 Governor Weights
1 – INTERMEDIATE WEIGHT
2 – SNAP RING
3 – INNER WEIGHT
4 – INNER WEIGHT SPRING
5 – OUTER WEIGHT
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AUTOMATIC TRANSMISSION—30RH
21 - 191
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