OPEL FRONTERA 1998 Workshop Manual

7A–150 AUTOMATIC TRANSMISSION (AW30-40LE)
FRONT PLANETARY GEAR
DISASSEMBLY
247RY00022
247RY00021
INSPECTION AND REPAIR
Check front planetary ring gear bushing
Using a dial indicator, measure the inside diameter of
the planetary ring gear bushing.
If the inside diameter is greater than the maximum,
replace the planetary ring gear.
Disassembly steps
1. Race
2. Thrust bearing
3. Race
4. Front planetary gear
5. Race (Metal)
6. Thrust bearing
7. Race
mm (in.)
Maximum inside diameter 24.08 (0.9480)

AUTOMATIC TRANSMISSION (AW30-40LE) 7A–151
REASSEMBLY
247RY00045
Reassembly steps
1. Thrust bearing and race
2. Race (Metal)
3. Thrust bearing and race
4. Race

7A–152 AUTOMATIC TRANSMISSION (AW30-40LE)
247RY00023
247RY00024
247RY00025
247RY00026
Important operations
1. Thrust bearing and race
Coat the races and bearing with petroleum jelly.
Install the race and bearing to the rear side of the planetary
gear.
2. Race (Metal)
Turn over the planetary gear and install the race.
Make sure that the lugs fit into the holes on the planetary
gear.
3. Thrust bearing and race
Coat the races and bearing with petroleum jelly.
Install the race and bearing onto the rear side of the
planetary ring gear.
4. Race
Turn over the planetary ring gear and install the race onto
the front side of the planetary ring gear.mm (in.)
Inside Outside
Bearing 35.6 (1.402) 47.7 (1.878)
Race 33.7 (1.327) 47.6 (1.874)
Bearing and races diameter (Reference) mm (in.)
Inside Outside
Race 34.3 (1.350) 47.8 (1.882)
mm (in.)
Inside Outside
Race 30.6 (1.205) 53.6 (2.110)
Bearing 32.7 (1.287) 47.7 (1.878)
Races and bearing diameter (Reference) mm (in.)
Inside Outside
Race 26.8 (1.055) 47.0 (1.850)

AUTOMATIC TRANSMISSION (AW30-40LE) 7A–153
PLANETARY SUN GEAR AND NO.1 ONE–WAY CLUTCH
DISASSEMBLY
248RY00050
Disassembly steps
1. One–way clutch and second brake hub
2. Thrust washer (Plastic)
3. Oil seal ring (Metal)
4. Snap ring
5. Snap ring

7A–154 AUTOMATIC TRANSMISSION (AW30-40LE)
248RY00051
248RY00052
248RY00053
248RY00054
Important operations
Check operation of No.1 one–way clutch
Hold the planetary sun gear and turn the second brake
hub. The second brake hub should turn freely clockwise
and should lock counterclockwise.
(1) : Free
(2) : Lock
3. Oil seal ring (Metal)
Remove two oil seal rings.
4. Snap ring
Remove the snap ring with snap ring pliers.
INSPECTION AND REPAIR
Check planetary sun gear bushing
Using a dial indicator, measure the inside diameter of the
planetary sun gear bushing.
If the inside diameter is greater than the maximum, replace
the planetary sun gear.mm (in.)
Maximum inside diameter 27.08 (1.0661)

AUTOMATIC TRANSMISSION (AW30-40LE) 7A–155
REASSEMBLY
248RY00066
Reassembly steps
1. Snap ring
2. Sun gear input drum
3. Snap ring
4. Oil seal ring (Metal)
5. Thrust washer (Plastic)
6. One–way clutch and second brake hub

7A–156 AUTOMATIC TRANSMISSION (AW30-40LE)
248RY00055
248RY00056
248RY00053
248RY00052
Important operations
1. Snap ring
Install snap ring to planetary sun gear.
2. Sun gear input drum
Place a wooden block, etc. as a work stand and place the
planetary sun gear onto it.
Install the sun gear input drum onto the planetary sun gear.
3. Snap ring
Install snap ring with snap ring pliers.
4. Oil seal ring (Metal)
Coat the two oil seal rings with ATF.
Install the two oil seal rings onto the planetary sun gear.
NOTE:
Do not spread the ring ends too much.

AUTOMATIC TRANSMISSION (AW30-40LE) 7A–157
248RY00057
248RY00058
248RY00051
5. Thrust washer (plastic)
Install thrust washer.
NOTE:
Make sure that the lugs fit into the holes on the sun gear
input drum.
6. One–way clutch and second brake hub
Install assembled No.1 one–way clutch and second brake
hub onto planetary sun gear as shown.
Check operation of No.1 one–way clutch
Hold the planetary sun gear and turn the second brake
hub. The second brake hub should turn freely clockwise
and should lock counterclockwise.
(1) : Free
(2) : Lock

7A–158 AUTOMATIC TRANSMISSION (AW30-40LE)
SECOND BRAKE ASSEMBLY (B–2)
DISASSEMBLY
246RY00006
Disassembly steps
1. Second brake assembly
2. Thrust washer (Plastic)
3. Snap ring
4. Spring retainer
5. Piston return spring
6. Piston sleeve
7. Second brake piston
8. O–ring

AUTOMATIC TRANSMISSION (AW30-40LE) 7A–159
246RY00007
247RY00001
246RY00008
247RY00034
Important operations
1. Second brake assembly
Remove second brake assembly from output shaft.
2. Snap ring
Place special tool on the spring retainer, and compress the
return spring.
Spring compressor : 5–8840–0254–0 (J–25048)
Remove the snap ring with snap ring pliers.
7. Second brake piston
Holding the second brake piston by hand, apply
compressed air to the second brake drum to remove the
second brake piston.
Remove the second brake piston.
INSPECTION AND REPAIR
Check piston return spring
Using calipers, measure the free length of the return
spring.
mm (in.)
Standard length 16.05 (0.6319)