Opel Frontera UE. Manual - part 1589

7A–78

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).

D

Lubricate the lip seal with transmission fluid.  Use
the 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.

D

Remove the installer.

247RS007

2. Install twenty-two piston springs (9) and spring seat

(8) on the second clutch piston (10).  Place retaining
ring (7) onto spring seat.

D

Use the J–23327 compressor to compress the
piston springs.

NOTE: Do not let spring seat catch in ring groove.

D

Remove the compressor.

3. Install waved plate (6) and clutch plates (5).  Start with

a steel plate and alternate with lined plates.

D

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). 

SECTION

7A–79

AUTOMATIC TRANSMISSION (4L30–E)

3–4 Accumulator Piston

Disassembled View

244RS005

Legend

(1) Snap Ring
(2) Cover

(3) Spring
(4) Piston Assembly

Disassembly

1. Install the J–38559–A cover compressor on adapter

case.

D

Compress piston cover then remove snap ring.

242RS007

2. Install the J–41096 cover remover and J–38584

adapter to center hole of cover.

D

Use the J–23907 slide hammer to remove cover.

3. Remove spring and piston assembly. 

242RW001

SECTION

7A–80

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 J–38553 piston fitter into adaptor case and

push the piston into position, using suitable diameter
tube.

D

Remove the piston fitter.

244RS006

2. Install spring and cover.
3. Install snap ring, using the J–38559–A compressor

tool.

D

Install snap ring in groove.

D

Remove the compressor tool.

242RS007

SECTION

7A–81

AUTOMATIC TRANSMISSION (4L30–E)

Reverse Clutch Piston and Center Support

Disassembled View

242RY001

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
(14) Retainer Plate
(15) Plug
(16) Spring
(17) Reverse Lock Out Control Valve

SECTION