2003 SSANGYONG MUSSO Service Manual

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.

AUTOMATIC TRANSMISSION 5A-107
C3 Clutch and Reverse Sun Gear Assembly
To assemble the C3 clutch and reverse sun gear assembly (refer to figure 8.28), proceed as follows.1. Check the orifices in the cylinder are clear of obstructions.
2. Check the C3 cylinder bush outside diameter and the centre support inside diameter are in good condition and
not damaged. Coat the sealing rings with automatic
transmission fluid and fit into the C3 cylinder grooves.
3. Check the reverse sun gear splines, grooves and thrust face for condition. Coat the ‘O’ ring with automatic
transmission fluid and fit it to the groove of the reverse
sun gear.
4. Install the reverse sun gear in the C3 cylinder, ensuring that the ‘O’ ring compression is adequate but not
excessive. Notice
‘O’ rings must not be twisted in the grooves.
5. Coat the C3 piston ‘O’ rings with automatic transmission
fluid and fat the small ‘O’ ring onto the in ner ring and the
large ‘O’ ring onto the outer ring of the C3 piston.
6. Check that the bleed orifices of the piston are clean and clear of obstructions.
7. Install the C3 piston in the cylinder until the outside diameter of the piston enters the inside diameter of the
cylinder. Notice
Take care not to cut the ‘O’ ring.
8. Assemble the spring and spring retainer on the piston. Using tool No. 0555-331899 compress the spring
sufficiently to enable the installation of the retaining circlip,
ensuring that the circlip is firmly seated in the groove, andremove the tool.
9. Fit the C3 wave plate to the C3 piston face, ensuring that one crest of the wave plate of the C3 piston face is aligned
over one of the piston orifices.
10. Assemble the clutch plates and discs into the cylinder in the following sequence :
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
11. Align and fit the pressure plate with the counterbore facing away from the clutch plates. Figure 8.28 - C3 Clutch and Reverse Sun Gear

5A-108 AUTOMATIC TRANSMISSION
12. Install the circlip.
13. Check the C3 clutch clearance (refer to figure 8.29) usingspecial tool No.0555-331900 in the following manner (weight only).
a. Place the weight on the pressure plate and measure
the distance from the end of the cylinder to the top of the pressure plate.
b. Record this figure.
c. Remove the weight.
d. Lift the pressure plate up against the circlip and measure the distance from the end ofthe cylinder to the top of the pressure plate.
e. Record this figure.
f. Subtract the second reading from the first reading to obtain the clutch pack clearance.
NoticeWith the clutch pack supporting a weight of 2 kg, the clearance between the snap ring and the top of the pressure plate is to be between 1.20-1.45 mm.
14. If new friction plates are being fitted, remove the clutch pack and soak the friction elements in automatic
transmission fluid for a minimum of five minutes prior to
reassembly. NoticeThe clutch pack clearance must be taken before the elements are soaked in automatic transmission fluid. Figure 8.29 - Typical C3 Clutch Assembly
Clearance

AUTOMATIC TRANSMISSION 5A-109
Forward Sun Gear and C3 Clutch Pack Assembly
To assemble the forward sun gear and C3 clutch pack assembly
(Refer to figure 8.30), proceed as follows:
1. Fit the No. 7 needle thrust bearing assembly over the forwardsun gear, ensuring that the thrust washer is between the
bearing and the sun gear.
2. Lubricate the thrust plate with petroleum jelly and fit the thrust plate onto the reverse sun gear. Refer to figure 8.33.
3. Align and fit the C3 clutch assembly over the forward sun gear.
4. Lubricate the No. 6 needle thrust bearing with petroleum jelly and fit it to the thrust plate. Ensure the lugs on the outside diameter of the bearing fit in the thrust plate
counterbore. Refer to figure 8.19.
5. Align and fit the plastic thrust washer to the thrust plate with petroleum jelly.
Refer to to figures 8.19.
6. Install the assembly over the forward sun gear shaft against the No.6 thrust bearing.
Refer to figure 8.19.
7. Place the assembly to one side.
Figure 8.30 - Typical forward Sun Gear add C3 Clutch Assembly