Subaru Crosstrek Service Manual: Assembly
CONTINUOUSLY VARIABLE TRANSMISSION(TR580) > Forward Clutch Assembly
ASSEMBLY
1. FORWARD CLUTCH ASSEMBLY
1. Install the forward clutch piston to forward clutch drum.
NOTE:
• Apply CVTF to the seal of forward clutch piston.
• Insert it all the way to the end.
2. Install the return spring.
3. Install the chamber COMPL.
NOTE:
Apply CVTF to the sealing area of chamber COMPL.
4. Compress the return spring using the ST to install the snap ring.
| ST1 18762AA010 | COMPRESSOR SPECIAL TOOL |
| ST2 398673600 | COMPRESSOR |
5. Check the operation of forward clutch piston by blowing compressed air intermittently from forward clutch carrier hole.
6. Place the driven plate, drive plate and retaining plate neatly in this order on surface table.
7. Set the dial gauge to retaining plate, and read its scale.
NOTE:
The value, which is read in the gauge at this time, is zero point.
8. Scale and record the weight “Z” of a flat board which will be put on retaining plate.
NOTE:
• Use a stiff board which does not bend against load as a flat board to be put on retaining plate.
• Use a flat board weighing less than 52 N (5.3 kgf, 11.7 lb).
9. Put the flat board on retaining plate.
10. Using the following formula, read the push/pull gauge and calculate “N”.
N = 52 N (5.3 kgf, 11.7 lb) − Z
52 N (5.3 kgf, 11.7 lb) : Load applied to clutch plate
Z: Flat board weight
11. Press the center of retaining plate by applying a force of “N” using push/pull gauge, and then measure and record the compression amount “A”.
NOTE:
Measure at four points with a 90° interval and calculate the average.
(A) | Driven plate |
(B) | Drive plate |
(C) | Retaining plate |
12. Install the dish plate, drive plate, driven plate, retaining plate and snap ring to the forward clutch carrier.
NOTE:
Install the dish plate in the correct direction.
13. Measure and record the clearance “B” between the retaining plate and snap ring.
14. Piston stroke calculation
Calculate with A and B dimensions recorded before.
If it exceeds the limit, replace with a new drive plate and adjust within the initial standard value.
S mm (in) = A + B
S: Piston stroke
A: Compression amount of drive plate and dish plate
B: Clearance between retaining plate and snap ring
Initial standard:
1.0 — 1.4 mm (0.040 — 0.055 in)
Limit thickness:
1.6 mm (0.063 in)
Retaining plate | |
Part No. | Thickness mm (in) |
31567AB760 | 4.2 (0.165) |
31567AB770 | 4.4 (0.173) |
31567AB780 | 4.6 (0.181) |
31567AB790 | 4.8 (0.189) |
31567AB830 | 5.0 (0.197) |
2. PLANETARY CARRIER ASSY
NOTE:
Assemble in the reverse order of disassembly.
3. INTERNAL GEAR
NOTE:
Assemble in the reverse order of disassembly.
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