brake OPEL FRONTERA 1998 Workshop Manual

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–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

AUTOMATIC TRANSMISSION (AW30-40LE) 7A–169
246RY00013
247RY00047
247RY00028
247RY00042
10. Disc, plate, and flange
Install a clutch plate onto the rear planetary gear assembly.
NOTE:
The claw interval of the plate should be as shown in the
figure when viewing the clutch plate from the arrow
direction.
Install a brake flange onto the rear planetary gear
assembly.
Install seven clutch discs and seven brake plates
alternately, star ting with clutch disc, onto the rear planetary
gear assembly.
11. Oil seal ring
Coat the oil seal ring with ATF and install it to the output
shaft.
NOTE:
Do not spread the ring ends too much.
12. Output shaft
Install output shaft into rear planetary assembly.

7A–170 AUTOMATIC TRANSMISSION (AW30-40LE)
246RY00014
13. Second brake assembly
Install second brake assembly to output shaft.

AUTOMATIC TRANSMISSION (AW30-40LE) 7A–171
FIRST AND REVERSE BRAKE (B–3)
DISASSEMBLY
246RY00024
Disassembly steps
1. Thrust bearing and race
2. Snap ring
3. Piston return spring
4. 1st and reverse brake piston No.2
5. O–ring
6. Reaction sleeve
7. O–ring
8. 1st and reverse brake piston No.1
9. O–ring

7A–172 AUTOMATIC TRANSMISSION (AW30-40LE)
247RY00043
246RY00016
247RY00002
246RY00016
Important operations
1. Thrust bearing and race
Remove assembled bearing and race from transmission
case.
Check first and reverse brake piston movement
Make sure that first and reverse brake piston moves
smoothly when applying and releasing the compressed air
into the transmission case.
2. Snap ring
Set 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.
4. 1st and reverse brake piston No.2
Holding the No.2 first and reverse brake piston by hand,
apply compressed air to the transmission case to remove
the No.2 first and reverse brake piston.
Remove the No.2 first and reverse brake piston.
If the piston does not pop out with compressed air, lift the
piston out with needle–nose pliers.