oil OPEL FRONTERA 1998 Workshop Manual

7A–86 AUTOMATIC TRANSMISSION (AW30-40LE)
TRANSMISSION REMOVAL AND INSTALLATION
240RY00038
Removal Steps
1. Transfer protector
2. Rear sound cover
3. Front sound cover
4. Rear propeller shaft
5. Front propeller shaft
6. Exhaust pipe
7. Harness connector
8. Front console, selector lever assembly, and
transfer control lever
9. Transfer case assembly
10. ATF cooler pipe and clamp11. Under cover and flex plate-torque conver ter
bolt
12. Rear mounting nut
13. 3rd crossmember
14. Oil level gauge and tube
15. Starter
16. Engine-transmission bolt
17. Transmission assembly
Installation steps
To install, follow the removal steps in reverse order.

AUTOMATIC TRANSMISSION (AW30-40LE) 7A–87
253RY00001
REMOVAL
Preparation
:
• Remove engine hood.
• Disconnect negative (–) battery cable.
1. Transfer protector
2. Rear sound cover
3. Front sound cover
4. Rear propeller shaft
5. Front propeller shaft
NOTE:
Apply alignment marks on the flange at both front and rear
sides.
6. Exhaust pipe
• Remove the 2nd front exhaust pipe from the 1st front
exhaust pipe and exhaust silencer.
7. Transmission harness connector
• Disconnect the harness connectors from the
transmission.
8. Front console, selector lever assembly, and transfer
control lever
• Disconnect the transfer control lever knob.
• Remove the front console.
• Disconnect the harness connector.
• Remove the selector lever assembly.
• Disconnect the shift control rod from the transmission.
9. Transfer case assembly
• Disconnect the breather hose from the transfer case.
• Remove the transfer case assembly from the
transmission.
10. ATF cooler pipe and clamp
• Disconnect two ATF cooler pipes from A/T side.
• Remove oil pipe clamp from torque converter housing
side.
• Loosen oil pipe clamp bolt at engine mount side.

7A–88 AUTOMATIC TRANSMISSION (AW30-40LE)
240RY00026
022RY00001
11. Under cover and flex plate-torque converter bolt
• Remove the under cover.
• Turn the crankshaft to gain access to each bolt.
Remove the six torque cover ter fixing bolts.
NOTE:
New fixing bolts should be replaced for reassembly.
12. Rear mounting nut
• Support transmission with a jack.
• Remove two rear mounting nuts from the 3rd
crossmember.
13. 3rd crossmember
14. Oil level gauge and tube
15. Starter
• Remove the mounting bolts, and pull the star ter toward
the front of the vehicle.
Lay the star ter alongside the engine.
16. Engine-transmission bolt
• Remove engine-transmission fixing bolts.
• Disconnect the breather hose from the breather hose 3
way (W/TOD) or 2 way (WO/TOD).
17. Transmission assembly
NOTE:
Keep the oil pan positioned down.
Be careful not to let the torque converter slide out.

AUTOMATIC TRANSMISSION (AW30-40LE) 7A–91
UNIT REPAIR
DISASSEMBLY OF MAJOR COMPONENTS (1)
240RY00024
NOTE:
Steps marked with a triangle (
) are important
operations. Detailed information appears in the text.
Disassembly steps
1. Torque conver ter
2. Breather hose
3. Transmission ocntrol rod and shift lever
4. Neutral start switch
5. Elbow
6. Oil temperature sensor
7. Input revolution sensor
8. Output revolution sensor
9. Adapter housing
10. Transmission assembly

AUTOMATIC TRANSMISSION (AW30-40LE) 7A–93
DISASSEMBLY OF MAJOR COMPONENTS (2)
242RY00005
Disassembly steps
1. Converter housing
2. Oil pan
3. Oil strainer assembly
4. Solenoid wiring
5. Valve body
6. Check valve, spring
7. Spring
8. Accumulator piston (B-2)
9. Accumulator piston (C-2)
10. Accumulator piston (B-0)
11. Accumulator piston (C-0)
12. Second brake drum gasket

7A–94 AUTOMATIC TRANSMISSION (AW30-40LE)
240RY00006
240RY00007
240RY00008
244RY00003
Important operations
1. Converter housing
Remove the six bolts.
Remove the transmission housing.
2. Oil pan
NOTE:
Do not turn over the transmission as this will contaminate
the valve body with foreign materials in the bottom of the
pan.
Remove the nineteen bolts.
Remove pan by lifting the transmission case.
Seal cutter: 5-8840-2153-0 (J-37228)
Examine particles in pan
Remove the magnet and use it to collect any steel chips.
Look carefully at the chips and par ticles in the pan and on
the magnet to anticipate what type of wear you will find in
the transmission:
Steel (magnetic).....bearing, gear and clutch plate wear
Brass (non-magnetic)...bushing wear
3. Oil strainer assembly
Remove four bolts holding the oil strainer.
NOTE:
When reassembling components, install a new oil strainer
assembly.

7A–96 AUTOMATIC TRANSMISSION (AW30-40LE)
240RY00010
240RY00011
240RY00012
8. Accumulator piston (B-2)
9. Accumulator piston (C-2)
Remove accumulator pistons and springs from
transmission case.
10. Accumulator piston (B-0)
Applying compressed air to the oil hole, remove the B-0
accumulator piston and spring.
11. Accumulator piston (C-0)
Remove the C-0 accumulator piston.

AUTOMATIC TRANSMISSION (AW30-40LE) 7A–97
DISASSEMBLY OF MAJOR COMPONENTS (3)
248L100001
Disassembly steps
1. Oil pump
2. Race
3. OD planetary gear and OD direct clutch
4. Race
5. OD planetary ring gear
6. Snap ring
7. Flange, plate and disc
8. Bearing and race
9. Snap ring
10. OD suppor t
11. Race
12. Snap ring
13. Second coast brake piston assembly
14. Direct clutch and forward clutch
15. E-ring and pin
16. Second coast brake band
17. Front planetary ring gear
18. Bearing and race
19. Race
20. Snap ring
21. Front planetary gear
22. Drum and one-way clutch
23 Snap ring
24. Flange, plate and disc
25. Snap ring
26. Rear planetary gear, second brake drum
and output shaft
27. Bearing

7A–98 AUTOMATIC TRANSMISSION (AW30-40LE)
241RY00003
241RY00002
252L100001
252L100017
Important operations
1. Oil pump
Remove seven bolts fixing the oil pump to the transmission
case.
Remove the oil pump.
2. Race
Remove race from oil pump.
3. OD planetary gear and OD direct clutch
Remove the overdrive planetary gear and overdrive direct
clutch with thrust needle bearing from the transmission
case.
4. Race
Remove the race from OD planetary gear.

7A–102 AUTOMATIC TRANSMISSION (AW30-40LE)
248RY00006
248RY00007
248RY00008
248RY00009
12. Snap ring
Using snap ring pliers, remove the snap ring.
13. Second coast brake piston assembly
Applying compressed air to the oil hole, remove the second
coast brake piston assembly.
14. Direct clutch and forward clutch
Remove the direct clutch and forward clutch from the case.
15. E-ring and pin
Remove the E-ring from the pin.
Remove the pin from the brake band.