Opel Frontera UBS. Service 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.)
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