clutch SSANGYONG MUSSO 2003 Manual PDF

AUTOMATIC TRANSMISSION 5A-89
Forward Clutch Cylinder
To remove the forward clutch cylinder, refer to figure 8.4,
proceed as follows.
1. Place the assembly in a horizontal position.
2. Remove the thrust bearing and adjustment shims from the input shaft.
3. Remove the circlip from the front of the clutch cylinder and remove the input shaft.
4. Remove the overdrive shaft and the C1 clutch hub assembly from the clutch cylinder.
5. Remove the C1 clutch plates from the cylinder.
6. Remove the circlip retaining the C3 clutch hub in the rear of the clutch cylinder and remove the hub.
7. Remove the C2/C4 clutch hub assembly and remove the thrust bearing from the C4 hub.
8. Remove the C2 clutch plates.
9. Invert the clutch cylinder and remove the C4 clutch sleeve, clutch plates and the two wave washers. The 3-4 one way
clutch is located between the C2 and C4 clutch hubs, andthe hubs may be separated by rotating one hub clockwise
and withdrawing it from the other.
Figure 8.4 - Forward Clutch Cylinder Assembly

5A-90 AUTOMATIC TRANSMISSION
10. Remove the thrust block from the C4 clutch cylinder hub.Notice
Make sure that the spring keeper is not caught in the circlip
groove, and that all the spring pressure is released, before
removing the tool.
11. Mount the clutch cylinder on tool No.0555-331899 with the C2/C4 end uppermost and compress the piston return
spring. Remove the spring retaining circlip. Release the
tool and remove the circlip, keeper and spring.
12. Invert the clutch cylinder on the compressor tool and remove the C1 clutch piston return spring in a similar
manner.
13. To remove the clutch pistons from the clutch cylinder, apply
air pressure to the apply ports in the bore of the cylinder.

AUTOMATIC TRANSMISSION 5A-91
C3 Clutch Cylinder
To remove the C3 clutch cylinder, proceed as follows:
1. Remove the forward sun gear and thrust bearing from theC3 clutch cylinder.
2. Remove the nylon thrust bearing, bearing support, needle thrust bearing and thrust block from the clutch cylinder hub.
3. Mount the clutch assembly on tool No.0555-331899 and
compress the piston return spring. Remove the circlip and release the spring. Notice
Make sure that the spring keeper has not been caught in
the circlip groove, and that all spring pressure has been
released, before removing the tool.
4. Remove the tool, circlip, keeper and spring.
5. Remove the sealing rings from the C3 clutch cylinder.
6. Remove the clutch plate retaining circlip and remove the clutch plates.
7. To remove the clutch piston from the clutch cylinder, apply air pressure to the port between the iron sealing rings on
the bearing journals of the cylinder.
8. Remove the reverse sun gear from the cylinder.

5A-92 AUTOMATIC TRANSMISSION
Planet Carrier and Centre Support
To remove the planet carrier and centre support, proceed as follows.1. Separate the planet carrier and centre support from the output shaft. Remove the thrust bearings from the output
shaft and the planet carrier.
2. Separate the centre support from the planet carrier by rotating it anti-clockwise.
3. Lift the one way clutch from the planet carrier.
4. Remove the circlip retaining the one way clutch outer race in the planet carrier and remove the race.
5. Remove the one way clutch retainer from the planet carrier.
Pump
Note that the following valves are housed in the pump cover:
Solenoid 7
C1 bias valve
Converter clutch control valve
Converter clutch regulator valve
Primary regulator valve
To remove the pump, proceed as follows. 1. Remove the wiring loom retainer plate and remove solenoid 7 with a T30 Torx bit.
2. Remove the five washer head bolts from the cover plate using a multi-point 8 mm socket.
3. Remove the five Torx head screws from the cover plate (Torx bit No. 30). Note that the odd screw holds the pump
body to the pump body cover. Notice
Do not strike the converter support tube to loosen the
pump body.
4. Separate the pump body from the pump cover.
5. Lift the cover plate from the cover.
6. Remove the two ball check valves and one spring from the pump cover.Notice
Some of the valves and plugs are preloaded by springs
and may unexpectedly fall out of the cover when the pinsare removed.
7. Depress the plug inward and remove the retaining pin for each of the four valves.
8. Remove the four valves, plugs and springs.
9. Remove the pump gears from the pump body.
10. Remove the lip seal from the front of the pump body.

5A-100 AUTOMATIC TRANSMISSION Planet Carrier Assembly and Centre Support
To assemble the planet carrier assembly and centre support, proceed as follows.1. Check the carrier and planet assembly for any damage or irregularity and ensure that all pinions rotate freely and
that the pinion end float is within the tolerance stated in section 9.2.
2. Install the one way clutch (OWC) retainer to the planet carrier with the inner edge pointing downwards. Inspect
the OWC race and the sprag assembly for wear or damage.
Replace if necessary.
3. Install the outer race in the drum. Press the race to the bottom of the drum and install the retaining circlip. Ensure
the circlip is firmly seated in its groove. Refer to figure 8.21.
4. Install the OWC into the outer race with the lip edge uppermost. Lubricate the sprags with automatic
transmission fluid. Refer to figure 8.20.
5. Check that the plugs are fitted to the centre support, then assemble the centre support into the OWC, ensuring that
the support will rotate in an anti-clockwise direction only.Refer to figure 8.21.
Figure 8.20 - Planet Carrier Assembly andCentre Support
6. Lubricate the No.9 needle thrust bearing and the thrust
washer with petroleum jelly and fit them to the rear face of
the planet carrier. Refer to figure 8.19.
7. Install the planet assembly and the centre support into the case, and align the centre support mounting bolt holes.
8. Install the centre support bolts finger tight.
9. Install the circlip retainer ensuring that the circlip is completely seated in the groove of the case.
10. Remove the centre support bolts and apply Loctite 222 or equivalent to the threads. Install the bolts and torque to specifications.

5A-102 AUTOMATIC TRANSMISSION Front Band Assembly
To assemble the front band assembly, proceed as follows.1. Install the reaction anchor strut to the case.
2. Check the band for ally cracks or damage along its lining and metal backing.
3. Position the strut retainers on the band (refer to figure 8.23).NOTICE
If fitting a new band, soak the band in automatic
transmission fluid for a minimum of 5 minutes prior to
assembly.
4. Install the front band into the transmission case, ensuring that it is properly seated in place.
5. Position the reaction strut in its retaining clip and engage it with the band and anchor strut.
Position the apply strut in its retaining clip and engage it
with the band and the servo piston rod.
C2/C4 Clutch Assembly Notice
1. Check pistons for cracks.
2. Do not mix the clutch piston return springs.
3. Ensure that the snap rings are fitted correctly.
To assemble the C2/C4 clutch assembly (refer to figure 8.24), proceed as follows. 1. Check the feed orifices in the cylinder bore are clear of obstructions.
2. Check the C2 piston bleed orifices are clear of obstructions.
3. Lubricate the ‘O’ rings with automatic transmission fluid.
Notice
‘O’ rings must not be twisted in the grooves.
4. Fit the small ‘O’ ring onto the inner groove, and the large
‘O’ ring onto the outer groove of the piston.
5. Check the C4 piston bleed orifices are clear of obstructions.
6. Lubricate the ‘O’ rings with automatic transmission fluid.
7. Fit the small ‘O’ rings onto the inner groove and the large
‘O’ rings onto the outer groove of the pis ton.
8. Position the clutch cylinder with the C2/C4 cavity facing upwards.
9. Fit the C4 piston into the C2 piston with the bleed orifices in alignment.
10. Install the C2/C4 piston assembly into the cylinder, with the piston bleed orifices aligned with the holes on the outside
of the cylinder, until the outer diameter of the C2 piston
enters the inner diameter of the cylinder.
Figure 8.23 - Front Band Strut Installation
Figure 8.24 - Typical C2/C4 Clutch Assembly

AUTOMATIC TRANSMISSION 5A-103
11. Assemble the piston return spring to the piston, and fit thespring retainer over the spring. NoticeThe wire diameter of this spring is 4.3 mm.
12. Using special tool No. 0555-331899, compress the spring sufficiently to enable the installation of the retaining circlip
ensuring that the circlip is firmly seated in its groove, then remove the tool.
13. Check the C1 piston check valves are not damaged and are free to move, and that the cylinder feed orifices areclear of obstructions.
14. Lubricate the ’0’rings with automatic transmission fluid and
fit them to their respective grooves. Notice
‘O’ rings must not be twisted in the grooves.
15. Position the cylinder with the C1 cavity upwards. Install the piston into the cylinder until the outer diameter of the piston
enters the inner diameter of the cylinder.
16. Install the spring and spring retainer onto the piston. Notice The wire diameter of this spring is 5.26 mm.
17. Using special tool No. 0555-331899, compress the spring sufficiently to enable the installation of the retaining circlip
ensuring that the circlip is firmly seated in its groove, then remove the tool.
18. Install the C2 wave washer into the cylinder with the crest of one wave covering one of the bleed orifices in the C2 piston.
19. Measure and record the thickness of the flange of the C2 sleeve. Refer to figure 8.25.
20. Install the C4 clutch plates and wave washer into the C2 actuating sleeve, with the rounded edge of the steel plates
down, in the following sequence:
Steel plate (selective)
Friction disc
Steel plate
Friction disc
Steel plate
Friction disc
Steel plate
Wave washer

5A-104 AUTOMATIC TRANSMISSION Figure 8.25 - C4 Clutch Pack Clearance

AUTOMATIC TRANSMISSION 5A-105
21. Holding the cylinder horizontal, install the sleeve and clutchplate assembly into the cylinder, with the crest of one wave
of the washer In line with one of the holes in the outside of
the cylinder, until the sleeve contacts the C2 wave washer.
22. Check the C4 clutch pack clearance using special tool No. 0555-331900. Refer to figure 8.25. NoticeWith the C2 wave spring compressed, and the clutch Pack supporting a 2 k9 weight, the dimension from the undersideof the C2 pressure plate to the selective steel is to bebetween 1.4- 1.8 mm. If the clutch is to be gauged from the top of the pressure plate, then the dimension is to be the actual thickness of the pressure plate plus 1.4-1.8 mm.
23. Use selective plates to achieve the correct specification. If new friction plates are being fitted, remove the clutch packand soak the friction plates in ATF for a minimum of 5
minutes prior to reassembly. NoticeThe clutch pack clearance must be taken before the
elements are soaked in Automatic Transmission Fluid
(ATF).
24. Reassemble the sleeve and clutch pack into the cylinder. Observe the alignment of the wave washer to the hole in
the cylinder.
25. Install the C2 clutch plates in the cylinder in the following sequence:
Friction disc
Steel plate
Friction disc
Steel plate
Steel plate - 0574-000001, 0574-000003, 0574-000004, 0574-000005, 0574-000020,
0574-000021, or friction disc -0574-000002
Steel plate (selective)
Friction disc
Steel plate (selective)
Friction disc

5A-106 AUTOMATIC TRANSMISSION
29. Align the tangs and fit the nylon thrust washer onto theC4 hub. Refer to figure 8.27.
30. Align and fit the C4 hub to the C2 clutch and the OWC assembly.
31. Check the rotation of the C2 hub. While holding the C4 hub, the C2 hub should rotate in the clockwise
direction and lockup in the anti-clockwise direction when
viewed from the C2 hub. Refer to figure 8.27.
Figure 8.27 - C2 - Hub Rotation
32. Apply petroleum jelly to the No. 5 thrust bearing and fitit to the C4 hub. Refer to figure 8.19.
33. Remove the C2 clutch plates from the clutch cylinder.
34. Fit the thrust plate over the cylinder inner hub. Refer to figures 8.24 and 8.19.
35. Engage the C2/C4 clutch hub assembly in the C4 clutch plates.
36. Install the C2 clutch plates.
37. Install the C3 hub and secure it with the circlip, ensuring that the circlip is firmly seated in its groove.Refer to figure 8.32. Figure 8.26 - Typical C2 Clutch Pack Clearance
26. Check the clutch pack clearance using only the weight
from tool No.0555-331900. Refer to figure 8.26.NoticeWith the clutch pack supporting a 2 kg weight, the dimension from the C3 clutch hub locating step to the friction plate is to be between 0.80-1.05 mm.
27. Use selective plates to achieve the correct specification. If new friction plates are being fitted, remove the clutch
pack and soak the friction plates in ATF for a minimum
of 5 minutes prior to reassembly. NoticeThe clutch pack clearance must be taken before the
elements are soaked in ATF.
28. Lubricate and fit the 3-4 OWC and end caps to the C2 hub.