Opel Frontera UBS. Manual - part 1464

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.

AUTOMATIC TRANSMISSION (AW30-40LE)

7A–99

252RY00002

252RY00003

244RY00001

246RY00001

5. OD planetary ring gear

Remove the overdrive planetary ring gear from the
transmission case.

Check piston stroke of overdrive brake

Place a dial indicator onto the overdrive brake piston as
shown in the figure.

Measure the stroke applying and releasing the compressed
air (4– 8kg/cm

2

, 57– 114 psi or 392– 785kPa) as shown in

the figure.

mm (in.)

If the values are nonstandard, select another flange.

6. Snap ring

Remove the snap ring.

Piston stroke

1.40–1.70

(0.0551–0.0669)

Available flange sizes 

mm (in.)

3.3 (0.130)

3.8 (0.150)

3.5 (0.138)

3.9 (0.154)

3.6 (0.142)

4.0 (0.158)

3.7 (0.146)

7A–100

AUTOMATIC TRANSMISSION (AW30-40LE)

246RY00026

247RY00003

246RY00002

252RY00004

7. Flange, plate and disc

Remove two flanges, three plates and four discs.

8. Bearing and race

Remove the thrust bearing and two races.

9. Snap ring

Using snap ring pliers, remove the snap ring.

10. OD support

Remove two bolts fixing the overdrive support assembly to
the case.

AUTOMATIC TRANSMISSION (AW30-40LE)

7A–101

252RY00005

252RY00006

248RY00004

248RY00005

Install two removed bolts to the OD support, and pull out
the OD support assembly.

11. Race

Remove two races from OD support.

Check piston stroke of second coast brake

Place a mark on the second coast brake piston rod as shown in
the figure.
Using feeler gauge, measure the stroke applying the
compressed air (4 – 8kg/cm

2

,

 57 – 114psi or 392 – 785 kPa) as

shown in the figure.

mm (in.)

If the values are nonstandard, replace piston rod and
recheck piston stroke. If piston stroke is nonstandard,
replace brake band.
There are two piston rods.

Piston stroke

1.5–3.0 (0.059-0.118)

Rod length

71.4mm (2.811 in.)

72.9mm (2.870 in.)