1998 OPEL FRONTERA automatic transmission

7A–67 AUTOMATIC TRANSMISSION (4L30–E)
Third Clutch
Disassembled View
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Legend
(1) Retaining Ring
(2) Spring Seat(3) Springs
(4) Piston Assembly
(5) Third Clutch Drum
Disassemble
1. Compress spring seat using the 5–8840–0501–0
(J–23075) spring compressor and 5–8840–2259–0
(J–23075–12) adapter tool.
NOTE: Do not over–stress the springs and seat. This will
cause damage to the spring seat.
Remove the tool.
Remove retaining ring (1).
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2. Release the spring seat (2).
NOTE: Do not let the spring seat catch in the ring groove.
Remove spring seat (2) and springs (3).
3. Remove piston assembly (4) from third clutch drum
(5).
Inspection And Repair
Visual check:
If any damage, deformation or wear is found, replace the
damaged part.
Operation check:
Shake the piston and listen for check ball movement
indicates proper check ball operation. Replace the piston
if the check ball is missing or falls out.
Reassembly
1. The lip of the piston seal must point toward the front of
the transmission. Lubricate the seal lip with
transmission fluid.
Install piston assembly (4) into the third clutch drum
(5). Use the 5–8840–2260–0 (J–23084) third clutch
piston installer to protect the outer seal during
installation.

7A–68
AUTOMATIC TRANSMISSION (4L30–E)
Remove the seal installer.
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2. Install twelve springs (3) and spring seat (2).
3. Place retaining ring (1) onto spring seat.
Compress the piston springs, using the
5–8840–0501–0 (J–23075) piston spring
compressor and 5–8840–2259–0 (J–23075–12)
adapter.
CAUTION: Do not over stress the springs and seat.
Do not let the spring seat catch in the ring groove.
This may cause damage to the spring seat.
Install spring seat retaining ring (1).
Remove the piston spring compressor and adapter.

7A–69 AUTOMATIC TRANSMISSION (4L30–E)
Sprag Unit
Disassembled View
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Legend
(1) Retaining Ring
(2) Sprag Outer Race
(3) Ring(4) Sprag Assembly
(5) Ring
(6) Third Clutch Hub and Sun Gear Assembly
Disassembly
1. Remove the sprag outer race, retaining ring, and
sprag assembly from the third clutch hub and sun
gear assembly.
2. Remove the rings and sprag assembly from the sprag
outer race.
Inspection And Repair
Visual Check:
If any damage, deformation or wear is found, replace the
damaged part.
Reassembly
NOTE: Flared shoulder of the sprag cage faces the sun
gear. This procedure must be followed exactly to be sure
that the sprag assembly is installed properly.
1. Install rings and sprag assembly onto the third clutch
hub and sun gear.
2. Install sprag outer race and retaining ring assembly
over the sprag cage assembly.
Place third clutch hub and sun gear assembly on a
flat surface, sun gear facing up. Place sprag outer
race and sprag assembly over the sun gear
assembly, push down and turn the input sun
counterclockwise at the same time. NOTE: Check correct rotation by holding the sun gear in
your left hand and turning the outer race. The outer sprag
race should turn freely towards you and should lock
turning away from you.
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7A–70
AUTOMATIC TRANSMISSION (4L30–E)
Second Clutch
Disassembled View
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Legend
(1) Retaining Ring
(2) Ring Gear
(3) Retaining Ring
(4) Spacer
(5) Clutch Plates(6) Waved Washer
(7) Retaining Ring
(8) Spring Seat
(9) Springs
(10) Piston Assembly
(11) Second Clutch Drum
Disassembly
1. Remove retaining ring (1) from second clutch drum
(11).
2. Remove ring gear (2), retaining ring (3), and spacer
(4).
3. Remove clutch plates (5) and waved washer (6).
4. Remove retaining ring (7) using 5–8840–0195–0
(J–23327) compressor to compress the spring seat
(8).
5. Remove spring seat (8), springs (9) and piston
assembly (10) from second clutch drum (11).
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7A–71 AUTOMATIC TRANSMISSION (4L30–E)
Inspection And Repair
Visual Check:
If any damage, deformation or wear is found, replace the
damaged part.
Operation Check:
Shake the piston and listen for check ball movement.
Movement indicates proper check ball operation.
Replace the piston if the check ball is missing or falls out.
Reassembly
1. Install piston assembly (10) into the second clutch
drum (11).
Lubricate the lip seal with transmission fluid. Use
the 5–8840–2261–0 (J–23080–A) second clutch
piston installer to protect the outer piston lip seal.
NOTE: Lip of the seal should point toward front of
transmission.
Remove the installer.
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2. Install twenty–two piston springs (9) and spring seat
(8) on the second clutch piston (10). Place retaining
ring (7) onto spring seat.
Use the 5–8840–0195–0 (J–23327) compressor to
compress the piston springs.
NOTE: Do not let spring seat catch in ring groove.
Remove the compressor.
3. Install waved plate (6) and clutch plates (5). Start with
a steel plate and alternate with lined plates.
Align second clutch inner tangs.
4. Install spacer (4), with the fluted end toward clutch
plates.
5. Install retaining ring (3), ring gear (2) and retaining
ring (1).

7A–72
AUTOMATIC TRANSMISSION (4L30–E)
3–4 Accumulator Piston
Disassembled View
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Legend
(1) Snap Ring
(2) Cover(3) Spring
(4) Piston Assembly
Disassembly
1. Install the 5–8840–2277–1 (J–38559–A) cover
compressor on adapter case.
Compress piston cover then remove snap ring.
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2. Install the 5–8840–2403–0 (J–41096) cover remover
and 5–8840–2266–0 (J–38584) adapter to center
hole of cover.
Use the 5–8840–0019–0 and 5–8840–2000–0
(J–23907) slide hammer to remove cover.
3. Remove spring and piston assembly.
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7A–73 AUTOMATIC TRANSMISSION (4L30–E)
Inspection And Repair
Visual Check:
If any damage, deformation or wear is found, replace the
damaged part.
Reassembly
1. Place the 5–8840–2264–0 (J–38553) piston fitter into
adaptor case and push the piston into position, using
suitable diameter tube.
Remove the piston fitter.
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2. Install spring and cover.
3. Install snap ring, using the 5–8840–2277–1
(J–38559–A) compressor tool.
Install snap ring in groove.
Remove the compressor tool.
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7A–74
AUTOMATIC TRANSMISSION (4L30–E)
Reverse Clutch Piston And Center Support
Disassembled View
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Legend
(1) Retaining Ring
(2) Spring Seat
(3) Springs
(4) Piston Assembly
(5) Center Support
(6) Gasket(7) Transfer Plate
(8) Gasket
(9) Restrictor
(10) Retainer Plate
(11) Plug
(12) Spring
(13) Overrun Lock Out Valve