Opel Frontera UBS. Manual - part 2503

7A–62

AUTOMATIC TRANSMISSION (4L30–E)

Main Case Valve Body

Disassembled View

244RS010

Legend

(1) Gaskets and Transfer Plate
(2) Manual Valve
(3) Band Control Solenoid
(4) Pin
(5) Waved Washer
(6) Spring Pin
(7) Solenoid A
(8) Retainer
(9) 1–2/3–4 Shift Valve

(10) Spring

(11) Spring Pin

(12) Solenoid B
(13) Retainer
(14) 2–3 Shift Valve

(15) Spring
(16) Spring Pin
(17) Plug
(18) Spring
(19) Low Pressure Control Valve
(20) Spring Pin
(21) Plug
(22) Band Control Screen Assembly
(23) Spring Pin
(24) Plug
(25) 1–2 Accumulator Valve
(26) 1–2 Accumulator Control Valve
(27) Check Ball
(28) Main Case Valve Body

Disassembly

1. Remove two 11mm bolts from valve body (28), then

remove gaskets and transfer plate (1).

2. Remove manual valve (2). 
3. Push in band control solenoid (3) to compress waved

washer (5), and remove pin (4).

4. Remove band control solenoid (3) and waved washer

(5).

5. Remove spring pin (6) with a 3 mm dia punch. 
6. Remove solenoid A (7) by grasping the metal tip. Do

not grasp the connector housing.

7. Remove retainer (8), 1–2/3–4 shift valve (9), and

spring (10). 

8. Remove spring pin (11) with a 3 mm dia punch. 
9. Remove solenoid B (12) by grasping the metal tip.  Do

not grasp the connector housing.

7A–63

AUTOMATIC TRANSMISSION (4L30–E)

10. Remove retainer (13), 2–3 shift valve (14), and spring

(15). 

11. Remove spring pin (16), plug (17), spring (18), and

low pressure control valve (19). 

12. Remove spring pin (20), plug (21), and band control

screen assembly (22). 

13. Remove spring pin (23), plug (24), 1–2 accumulator

valve (25), and 1–2 accumulator control valve (26).

14. Remove check ball (27) from valve body (28).

Inspection And Repair

Inspect for the following, and replace any damaged or
worn parts:

1. Damage or wear to each valve.
2. Damage in oil passeges.
3. Cracks or damage to valve body.
4. Valve operations.
5. Spring fatigue.

Reassembly

1. Install 1–2 accumulator control valve (26), 1–2

accumulator valve (25), plug (24), and spring pin (23).

2. Install band control screen assembly (22), plug (21),

and spring pin (20). 

3. Install low pressure control valve (19), spring (18),

plug (17), and spring pin (16). 

4. Install spring (15), 2–3 shift valve (14), retainer (13),

solenoid B (12), and spring pin (11). 

5. Install spring (10), 1–2/3–4 shift valve (9), retainer (8),

solenoid A (7), and spring pin (6). 

6. Install waved washer (5), band control solenoid (3),

and pin (4). 

7. Install manual valve (2). 
8. Install check ball (27) to valve body (28).

9. Install gasket (valve body/transfer plate) and transfer

plate using two  5–8840–2270–0 (J–3387–2) guide
pins. 

D

Install two 11mm bolts.

Torque: 13 N

•

m (1.3 kg·m/113 lb in)

244RW004

D

Install gasket (transfer plate/main case).

7A–64

AUTOMATIC TRANSMISSION (4L30–E)

Adapter Case Valve Body

Disassembled View

243RW001

Legend

(1) Converter Clutch Solenoid Assembly
(2) Retainer
(3) Force Motor Solenoid
(4) Retainer
(5) Plug
(6) 3/4 Accumulator Valve
(7) 3/4 Accumulator Control Valve

(8) Spring
(9) Retaining Ring

(10) Feed Limit Valve

(11) Plug Retainer

(12)

O–Ring

(13) Plug
(14) Force Motor Screen Assembly
(15) Adapter Case Valve Body

Disassembly

1. Remove 11mm bolt from valve body.

D

Remove converter control solenoid assembly (1).

2. Remove 11mm bolt and retainer (2) from valve body.

D

Remove force motor solenoid (3).

3. Remove retainer (4), plug (5), 3/4 accumulator valve

(6), and 3/4 accumulator control valve (7).

4. Remove spring (8), retaining ring (9), and feed limit

valve (10). 

5. Remove plug retainer (11), O–ring (12), plug (13), and

force motor screen assembly (14). 

D

Use 5 mm bolt to pull plug.

Inspection And Repair

Inspect for the following, and replace any damaged or
worn parts:

1. Damage or wear to each valve.
2. Damage in oil passeges.
3. Cracks or damage to valve body.
4. Valve operations.
5. Spring fatigue.

Reassembly

1. Install force motor screen assembly (14), plug (13),

O–ring (12), and plug retainer (11).

2. Install feed limit valve (10), retaining ring (9), and

spring (8).

7A–65

AUTOMATIC TRANSMISSION (4L30–E)

3. Install 3/4 accumulator control valve (7), 3/4

accumulator valve (6), plug (5), and retainer (4).

4. Install force motor solenoid (3).

D

Place solenoid terminals pointing towards mating
face.

D

Install retainer (2) and bolt.

Torque: 10 N

•

m (1.0 kg·m/87 lb in)

5. Install converter clutch solenoid assembly with two

O–rings (1) to valve body.

D

Install bolt.

Torque: 10 N

•

m (1.0 kg·m/87 lb in)

Third Clutch And Sprag Unit

Disassembled View

248RW001

Legend

(1) Retaining Ring
(2) Input Sun Gear and Sprag Unit Assembly
(3) Retaining Washer
(4) Bearing

(5) Thrust Washer
(6) Clutch Plates
(7) Third Clutch Spring Cushion Plate
(8) Third Clutch Drum Assembly

Disassembly

1. Place the third clutch drum and intermediate shaft

assembly upright, using the overdrive internal gear as
a support.

2. Locate the ends of the retaining ring. Depress one

end of the ring using a small screwdriver instead of
the depressor handle provided with the tool
5-8840-2258-0 (J-38450-A). Slide one blade down
between the third clutch drum and the retaining ring.

3. Remove a screwdriver and repeat this step for the

other end of retaining ring.

4. Install the remaining four blades approximately (five)

notches apart using a screwdriver to depress the
retaining ring.

5. Pull up on input sun gear and sprag unit assembly (1

and 2) to release the retaining ring from third clutch
drum assembly (8).

6. Remove the tool blades.

248RW006