2004 DAEWOO LACETTI brake

5A2 – 172IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
Tools Required
DW240–020 Brake/Clutch Spring Compressor
DW240–040 Direct Clutch Adapter
Disassembly Procedure
WARNING : USE CAUTION WHEN CHECKING COM-
PONENTS WITH COMPRESSED AIR OR PERSONAL
INJURY MAY RESULT.
1. Install the direct clutch and thrust needle roller
bearing on the oil pump.
2. Using a dial indicator, measure the direct clutch
piston stroke while applying and releasing 392 kPa
(57 psi).of compressed air.
Piston stroke: 0.4
0.8 mm (0.016
0.031 in.)
If the stroke is non–standard, inspect the discs,
plates and flange.
3. Using a screwdriver, remove the snap ring.
4. Remove the flange, 2discs and 2 plates.
5. Place the brake/clutch spring compressor
DW240–020 and direct clutch adapter DW240–040
on the direct clutch return spring and compress.
6. Using a snap ring expander, remove the snap ring.
Notice : Stop the press when the piston return spring is
lowered to the place 1–2 mm (0.039–0.078 in.) from the
snap ring groove, preventing the piston return spring from
being deformed.
Notice : Do not expand the snap ring excessively.

5A2 – 176IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
5. Install the direct clutch return spring.
6. Place brake/clutch spring compressor DW240–020
and direct clutch adapter DW240–040 on the return
spring and compress.
7. Using a snap ring expander, install the snap ring.
Notice : Stop the press when the piston return spring is
lowered to the place 1–2 mm (0.039–0.078 in.) from the
snap ring groove, preventing the piston return spring from
being deformed.
Notice : Do not expand the snap ring excessively.
8. Install the 2 plates, 2 discs and flange.
S Before installing the discs, coat them with
ATF.Install in order: P
D
P
D – F
(P = Plate, D = Disc, F = Flange)
9. Using a screwdriver, remove the snap ring.
10. Check that end gap of the snap ring is not aligned
with one of the cutouts.

5A2 – 180IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
ONE–WAY CLUTCH
1. Snap Ring
2. One–Way Clutch3. 2nd Brake Hub
4. Retainer

AISIN AUTOMATIC TRANSAXLE 5A2 – 181
DAEWOO V–121 BL4
Disassembly Procedure
1. Install the one–way clutch and thrust washer to the
rear planetary sun gear.
2. Hold the rear planetary sun gear and turn the one–
way clutch. The one–way clutch should turn freely
clockwise and should lock counterclockwise.
3. Using a screwdriver, remove the snap ring from the
2nd brake hub.
4. Remove the one–way clutch from the 2nd brake
hub.
5. Using a small screwdriver, remove the retainer from
the 2nd brake hub.

5A2 – 182IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
Assembly Procedure
1. Install the retainer to the 2nd brake hub.
2. Install the one–way clutch.
3. Using a screwdriver, install the snap ring.
4. Install the one–way clutch and thrust washer to the
rear planetary sun gear.
5. Hold the rear planetary sun gear and turn the one–
way clutch. The one–way clutch should turn freely
clockwise and should lock counterclockwise.

5A2 – 184IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
Tools Required
DW240–020 Brake/Clutch Spring Compressor
DW240–030 Forward Clutch Adapter
DW240–120 Measuring Terminal
Disassembly Procedure
WARNING : USE CAUTION WHEN CHECKING COM-
PONENTS WITH COMPRESSED AIR OR PERSONAL
INJURY MAY RESULT.
1. Install the forward and reverse clutch and thrust
needle roller bearing on the transaxle rear cover.
2. Using a dial indicator, measure the reverse clutch
pack clearance while applying and releasing 392
kPa (57 psi) of compressed air.
S Pack clearance: 0.40
1.00 mm (0.0157

0.0394 in.)
S If the stroke is non–standard, inspect the discs,
plates and flange.
WARNING : USE CAUTION WHEN CHECKING COM-
PONENTS WITH COMPRESSED AIR OR PERSONAL
INJURY MAY RESULT.
3. Install the forward and reverse clutch and thrust
needle roller bearing on the transaxle rear cover.
4. Using a dial indicator and measuring terminal
DW240–120, measure the forward clutch pack
clearance while applying and releasing 392 kPa (57
psi). of compressed air.
S The forward and reverse clutch will come out as
you apply the compressed air. Therefore, while
the checking is being done, press on the input
shaft of the forward and reverse clutch using
stamping machine or alike so that the pressure
is not applied on the forward and reverse clutch.
S Pack clearance: 1.1–1.5 mm (0.043
0.059 in.)
If the stroke is non–standard, inspect the discs,
plates and flange.
5. Using a screwdriver, remove the reverse clutch
snap ring.

AISIN AUTOMATIC TRANSAXLE 5A2 – 185
DAEWOO V–121 BL4
6. Remove the 2 flanges, 2 discs and plate from the
reverse clutch drum.
7. Using a screwdriver, remove the snap ring.
8. Remove the flange, 3 discs and 3 plates from the
forward clutch drum.
9. Using brake/clutch spring compressor DW240–020
and forward clutch adapter DW240–030, compress
the spring.
10. Using a snap ring expander, remove the snap ring.
Notice : Stop the press when the clutch balancer is low-
ered to the place 1–2 mm (0.039–0.078 in.) from the snap
ring groove, preventing the clutch balancer from being de-
formed.
Notice : Do not expand the snap ring excessively.

AISIN AUTOMATIC TRANSAXLE 5A2 – 189
DAEWOO V–121 BL4
5. Install the forward clutch return spring and clutch
balancer.
Notice : Be careful not to damage the lip seal of forward
clutch return spring.
6. Place brake/clutch spring compressor DW240–020
and forward clutch adapter DW240–030 on the
clutch balancer and compress the piston return
spring.
7. Using a snap ring expander, install the snap ring.
Notice : Stop the press when the clutch balancer is low-
ered to the place 1–2 mm (0.039–0.078 in.) from the snap
ring groove, preventing the clutch balancer from being de-
formed.
Notice : Do not expand the snap ring excessively.
8. Install the 3 plates, 3 discs and flange.
S Install in order: P
D
P
D
P
D – F
(P = Plate, D = Disc, F = Flange)
9. Using a screwdriver, install the snap ring.
10. Check that the end gap of the snap ring is not
aligned with one of the cutouts.