1998 OPEL FRONTERA automatic transmission

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)

7A–160 AUTOMATIC TRANSMISSION (AW30-40LE)
REASSEMBLY
246RY00023
Reassembly steps
1. O–ring
2. Second brake piston
3. Piston sleeve
4. Piston retur n spring
5. Spring retainer
6. Snap ring
7. Thrust washer (Plastic)
8. Second brake assembly

AUTOMATIC TRANSMISSION (AW30-40LE) 7A–161
246RY00009
246RY00010
247RY00001
246RY00011
Important operations
1. O–ring
Coat new O–ring with ATF and install them on the second
brake piston.
2. Second brake piston
Being careful not to damage the O–rings, press in the
second brake piston into the second brake drum.
3. Piston sleeve
Install piston sleeve.
4. Piston return spring
Install piston return spring.
5. Spring retainer
Install spring retainer.
6. Snap ring
Place special tool on the spring retainer, and compress the
return spring.
Spring compressor : 5–8840–0254–0(J–25048)
Install the snap ring with snap ring pliers. Be sure the end
gap of the snap ring is not aligned with the spring retainer
claw.
Check second brake piston movement
Make sure the second brake piston moves smoothly when
applying and releasing the low compressed air to the
second brake drum.

7A–162 AUTOMATIC TRANSMISSION (AW30-40LE)
246RY00012
246RY00014
7. Thrust washer (Plastic)
Coat the thrust washer with petroleum jelly and install it to
the second brake piston, with the grooved side facing
upward.
NOTE:
Make sure that the cutout portions of the thrust washer
match the teeth of the spring retainer.
8. Second brake assembly
Install second brake assembly to output shaft.

AUTOMATIC TRANSMISSION (AW30-40LE) 7A–163
REAR PLANETARY GEAR ASSEMBLY AND OUTPUT SHAFT
DISASSEMBLY
247RY00027
Disassembly steps
1. Second brake assembly
2. Output shaft
3. Oil seal ring
4. Disc, plate and flange
5. Rear planetary gear assembly
6. One–way clutch inner race
7. Snap ring

8. One–way clutch
9. Thrust washer (Plastic)
10. Thrust washer (Plastic)
11. Thrust bearing and race
12. Snap ring
13. Ring gear flange

7A–164 AUTOMATIC TRANSMISSION (AW30-40LE)
247RY00028
247RY00029
247RY00030
247RY00031
Important operations
3. Oil seal ring
Remove oil seal ring from output shaft.
5. Rear planetary gear assembly
Remove rear planetary gear from rear planetary ring gear.
Check operation of No.2 one–way clutch
Hold the planetary gear and turn the one–way clutch inner
race. The one–way clutch inner race should turn freely
counterclockwise and should lock clockwise.
(1) : Lock
(2) : Free
6. One–way clutch inner race
Remove the one–way clutch inner race from the rear
planetary gear.

AUTOMATIC TRANSMISSION (AW30-40LE) 7A–165
247RY00032
247RY00033
248RY00045
7. Snap ring
Remove the snap ring with a screwdriver.
8. One–way clutch
Remove the one–way clutch with retainers from the
planetary gear.
Check disc, plate and flange
Check to see if the sliding surface of the disc, plate and
flange are worn or burnt. If necessary, replace them.
• If the lining of the disc is peeling off or discolored, or even
if par ts of the printed numbers are defaced, replace all
discs.
• Before assembling new discs, soak them in ATF for at
least fifteen minutes.

7A–166 AUTOMATIC TRANSMISSION (AW30-40LE)
REASSEMBLY
247RY00046
Reassembly steps
1. Ring gear flange
2. Snap ring
3. Thrust bearing and race
4. Thrust washer (Plastic)
5. Thrust washer (Plastic)
6. One–way clutch
7. Snap ring
8. One–way clutch inner race
9. Rear planetary gear assembly
10. Disc, plate, and flange
11. Oil seal ring
12. Output shaft
13. Second brake assembly