1998 OPEL FRONTERA oil

AUTOMATIC TRANSMISSION (AW30-40LE) 7A–141
FORWARD CLUTCH ASSEMBLY (C-1)
DISASSEMBLY
248RY00063
Disassembly steps
1. Thrust bearing
2. Race
3. Snap ring
4. Flange
5. Disc and plate
6. Snap ring
7. Piston return spring
8. Piston
9. O-ring
10. O-ring
11. Oil seal ring
12. Thrust bearing

AUTOMATIC TRANSMISSION (AW30-40LE) 7A–145
REASSEMBLY
248RY00064
Reassembly steps
1. Thrust bearing
2. Oil seal ring
3. O-ring
4. O-ring
5. Forward clutch piston
6. Piston retur n spring
7. Snap ring
8. Cushion plate
9. Disc and plate
10. Flange
11. Snap ring
12. Race
13. Thrust bearing

7A–146 AUTOMATIC TRANSMISSION (AW30-40LE)
248RY00044
248RY00046
248RY00047
248RY00049
Important operations
1. Thrust bearing
Coat the assembled bearing and race with petroleum jelly
and install it onto the forward clutch drum, with the race
side facing downward.
2. Oil seal ring
Coat the three oil rings with ATF.
Contract the oil seal rings as shown, and install three oil
seal rings onto the forward clutch drum.
NOTE:
Do not spread the ring ends more than necessary.
3. O-ring
Coat a new O-ring with ATF and install O-ring on the
forward clutch drum.
4. O-ring
Coat new O-rings with ATF and install two O-rings on the
forward clutch piston.
5. Forward clutch piston
Being careful not to damage the O-rings, press the forward
clutch piston into the forward clutch drum. Assembled bearing and race (Reference) mm (in.)
Inside diameter 33.7 (1.327)
Outside diameter 47.8 (1.882)

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–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