Jeep XJ. Manual — part 435
(40) Remove front planetary bearing race and
remove front planetary ring gear (Fig. 120).
(41) Remove thrust bearing and rear race from
ring gear (Fig. 121).
(42) Remove planetary thrust race.
(43) Push forward on output shaft to relieve the
load on the planetary snap ring.
(44) Remove planetary snap ring and remove plan-
etary gear (Fig. 122).
Fig. 120 Front Planetary Ring Gear Removal
1 – RING GEAR BEARING RACE (FRONT)
2 – FRONT PLANETARY RING GEAR
Fig. 121 Removing Ring Gear Bearing And Rear Race
1 – BEARING AND REAR RACE
2 – FRONT PLANETARY RING GEAR
Fig. 122 Removing Planetary Snap Ring And Gear
1 – PLANETARY SNAP RING
2 – PLANETARY GEAR
3 – SNAP RING PLIERS
21 - 276
AW–4 AUTOMATIC TRANSMISSION
XJ
DISASSEMBLY AND ASSEMBLY (Continued)
(45) Remove
sun
gear,
input
drum,
one–way
clutch, and thrust washer as assembly (Fig. 123).
(46) Measure second brake clutch pack clearance
(Fig. 124). Clearance should be 0.62 – 1.98 mm
(0.0244 – 0.0780 in.). Record measurement for use
during re-assembly.
(47) Remove second brake clutch pack snap ring
(Fig. 125).
(48) Remove second brake clutch pack (Fig. 126).
Inspect and replace as necessary.
Fig. 123 Removing Sun Gear, Input Drum And
One–Way Clutch
1 – SUN GEAR INPUT DRUM, ONE-WAY CLUTCH ASSEMBLY
Fig. 124 Checking Second Brake Clutch Pack
Clearance
1 – FEELER GAUGE
2 – SECOND BRAKE CLUTCH PACK
Fig. 125 Removing Second Brake Clutch Pack Snap
Ring
1 – CLUTCH PACK SNAP RING
Fig. 126 Removing/Measuring Second Brake Clutch
Disc Thickness
XJ
AW–4 AUTOMATIC TRANSMISSION
21 - 277
DISASSEMBLY AND ASSEMBLY (Continued)
(49) Remove bolts attaching park rod bracket to
case. Then disconnect park rod from manual shaft
lever and remove rod and bracket (Fig. 127).
(50) Remove park pawl spring, pin and pawl (Fig.
128).
(51) Measure
clearance
of
first–reverse
brake
clutch pack (Fig. 129). Clearance should be: 0.70 –
1.2 mm (0.028 – 0.047 in.). record measurement for
use during re-assembly.
(52) Remove second brake piston sleeve (Fig. 130).
(53) Remove second brake snap-ring.
(54) Remove rear planetary gear, second brake
drum and output shaft as an assembly (Fig. 131).
(55) Remove planetary and brake drum thrust
bearing and race assembly (Fig. 132).
(56) Remove second brake drum gasket from case
with screwdriver.
(57) Measure inside diameter of transmission case
rear bushing with bore gauge or inside micrometer
(Fig. 133). Maximum allowable diameter is 38.18 mm
(1.5031 in.). Replace transmission case if bush-
ing I. D. is greater than specified. Bushing is
not serviceable.
Fig. 127 Removing Park Rod And Bracket
1 – PARK ROD BRACKET
2 – SHIFT SETOR
Fig. 128 Removing Park Pawl, Pin And Spring
1 – SPRING
2 – PIN
3 – PARK PAWL
Fig. 129 Checking First–Reverse Brake Clutch Pack
Clearance
1 – FIRST-REVERSE CLUTCH PACK
2 – FEELER GAUGE
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AW–4 AUTOMATIC TRANSMISSION
XJ
DISASSEMBLY AND ASSEMBLY (Continued)
(58) Check first/reverse brake piston operation
with compressed air (Fig. 134). Piston should move
smoothly and not bind or stick. If piston operation is
incorrect, case or piston may require replacement.
(59) Compress piston return springs with Tool
7539 and remove piston snap ring (Fig. 135).
(60) Remove Tool 7539 and remove piston return
springs.
Fig. 130 Removing Second Brake Piston Sleeve
1 – REMOVER TOOL
2 – PISTON SLEEVE
Fig. 131 Removing Rear Planetary, Second Brake
Drum And Output Shaft
1 – PLANETARY, BRAKE DRUM AND OUTPUT SHAFT
ASSEMBLY
Fig. 132 Removing/Installing Bearing And Race
Assembly
1 – BEARING AND RACE ASSEMBLY
Fig. 133 Checking Rear Bushing Inside Diameter
1 – BORE GAUGE
2 – REAR BUSHING
3 – TRANSMISSION CASE
XJ
AW–4 AUTOMATIC TRANSMISSION
21 - 279
DISASSEMBLY AND ASSEMBLY (Continued)
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