2-4 Brake, Low and Reverse Brake Assembly

Assembly Procedure





1. Apply a coat of ATF to a new seal ring and new O-ring then install them to the 2-4 brake piston.

Note: After installing the piston, ensure that piston rotates smoothly by hand. If not, the lip seal may be caught.

Low and reverse brake





1. Measure the snap ring groove width A.
2. Measure the snap ring thickness B.
3. Calculate the clearance using the following formula.

Clearance = A - B: 0.0 - 0.2 mm (0.000 - 0.008 in)

4. If the clearance is out of specification, select a suitable snap ring.

Selectable snap ring thickness





Note: The low one-way clutch must be installed with the groove facing upward.





5. Install the low one-way clutch.

Note: The snap ring opening must be positioned as shown in the figure.





6. Install the snap ring.
7. Install the retaining plates, drive plates, driven plates, dished plate, and spring retainer.
8. Install the return spring.

Note: When installing the piston and retainer, align the oil holes as shown in the figure.





9. Install the piston and retainer.

Caution: Depress the spring retainer only enough to remove the snap ring. Overpressing will damage the retainer assembly edges.





10. Install the SSTs in the transaxle case as shown in the figure.

Note: The snap ring opening must be positioned as shown in the figure.





11. Install the snap ring.

Note: The snap ring opening must be positioned as shown in the figure.





12. Remove the SSTs.

2-4 brake





1. Install the clutch plates, drive and driven plates as shown in the figure.





2. Using the dial depth gauge and the SST, measure clearance between the retaining plate and the snap ring.

Note: When measuring the 2-4 brake clearance, do not install the retaining plate in the transaxle case.

1) Position the SST on the surface of the transaxle case where it contacts the end cover.
2) Measure the height A between the SST surface and the driven plate.





3) Position the SST on the piston edge of the end cover.
4) Measure the height B between the SST surface and the contact surfaces of the end cover and transaxle case.
5) Measure the retaining plate thickness C.
6) Calculate the clearance using the following formula.

Clearance = A - B - C: 0.6 - 0.9 mm (0.02-0.04 in)

3. If clearance is out of specification, select a suitable retaining plate.

Retaining plate sizes





4. Install the retaining plate and snap ring.