End Cover Component Assembly
END COVER COMPONENT ASSEMBLYStructural View
Assembly Procedure
1. Assemble the R-3-5 brake piston using the following procedure:
1. Apply ATF (ATF FZ) to the R-3-5 brake piston lip.
2. Assemble the R-3-5 brake piston.
2. Measure the R-3-5 brake clearance and select the appropriate snap ring. (See R-3-5 BRAKE CLEARANCE MEASUREMENT/ADJUSTMENT.)
3. Assemble the springs and retainer component.
NOTE: Springs and retainer component size: Inner diameter approx. 148.8 mm {5.858 in}
4. Assemble the drive plates and driven plates using the following procedure:
NOTE:
- Drive plate size: Outer diameter approx. 169.4 mm {6.669 in}
- Driven plate size: Inner diameter approx. 141.8 mm {5.583 in}
1. Apply ATF (ATF FZ) to the drive plates and driven plates.
CAUTION: If the drive plate is replaced with a new one, immerse it in ATF (ATF FZ) for 2 hours or more to permeate the facing with ATF.
2. Assemble the drive plates and driven plates.
A : Drive plate
B : Driven plate
Assembly order
Driven plate-drive plate-driven plate-drive plate-driven plate-drive plate
5. Assemble the retaining plate.
NOTE: Retaining plate size: Inner diameter approx. 141.8 mm {5.583 in}
6. Assemble the snap ring using the following procedure:
NOTE: Snap ring size: Outer diameter approx. 186.2 mm {7.331 in}
1. Set the snap ring selected in Step 2 on top of the end cover.
A : Selection
2. Install the SST.
3. Set the SST and part to the press as shown in the figure.
A : Press
B : Rubber plate
CAUTION: Using the rubber plates, adjust the alignment surface of the end cover with the transaxle case so that it is level. Otherwise the parts could tip over during the procedure and get damaged.
4. Press down the SST using the press until the snap ring groove of the end cover comes out.
A : Snap ring groove
CAUTION: If the SST is pressed excessively by the press, surrounding parts could be damaged. Stop pressing down the SST using the press when the snap ring groove of the end cover comes out.
5. Assemble the snap ring to the position shown in the figure.
A : End gap of snap ring assembly area
CAUTION:
- Assemble the snap ring so that the end gap of the snap ring is in the area shown in the figure.
- After assembling the snap ring, verify that the snap ring is securely inserted into the bottom of the snap ring groove.
6. Take the SST and part off the press.
7. Remove the SST.
7. Perform an operation verification of the R-3-5 brake using the following procedure:
1. Blow compressed air into the oil passage shown in the figure and verify the operation condition of the R-3-5 brake.
WARNING: Always wear protective eye wear when using the air compressor. Otherwise, ATF or dirt particles blown off by the air compressor could get into the eyes.
CAUTION: To prevent damage to parts, always use an air compressor which is adjusted to the indicated pressure.
Compressed air pressure
0.39-0.44 MPa {4.0-4.4 kgf/cm2, 57-63 psi}
- If there is a malfunction, perform disassembly again, verify the cause and repair the applicable part. (See END COVER COMPONENT DISASSEMBLY.)
8. Assemble the thrust needle bearing.
NOTE: Thrust needle bearing size: Outer diameter approx. 63 mm {2.5 in}
9. Assemble the reduction internal gear.
NOTE: While rotating the reduction internal gear, engage the splines of each of the R-3-5 brake drive plates one by one, and assemble.
10. To verify that the reduction internal gear is securely assembled, measure the distance shown in the figure.
A : End cover end (alignment surface with brake housing)
B : Reduction internal gear end
NOTE: Recommended measuring instrument: Depth gauge, straight edge ruler
Specification
45.0-46.1 mm {1.78-1.81 in}
- If not within the specification, remove the reduction internal gear and reassemble.
NOTE: Measurement method
1. Set two straight edge rulers along the alignment surfaces of the end cover with the brake housing as shown in the figure.
A : Straight edge ruler
2. Measure the positions (2 locations) shown in the figure using a depth gauge and calculate the average value.
3. Subtract the thickness of the straight edge ruler from the average value.
11. Assemble the thrust needle bearing.
NOTE: Thrust needle bearing size: Outer diameter approx. 63 mm {2.5 in}
12. Assemble the retaining plate.
NOTE: Retaining plate size: Inner diameter approx. 148 mm {5.83 in}
13. Assemble the drive plates and driven plates using the following procedure:
CAUTION: The driven plate has a similar shape to the retaining plate used for the 2-6 brake clearance adjustment. Before assembling the driven plate, always verify the plate thickness and the shape.
NOTE:
- Drive plate size: Outer diameter approx. 171.9 mm {6.768 in}
- Driven plate size: Inner diameter approx. 148 mm {5.83 in}, thickness approx. 1.6 mm {0.063 in}
1. Apply ATF (ATF FZ) to the drive plates and driven plates.
CAUTION: If the drive plate is replaced with a new one, immerse it in ATF (ATF FZ) for 2 hours or more to permeate the facing with ATF.
2. Assemble the drive plates and driven plates.
A : Drive plate
A : Driven plate
Assembly order
Drive plate-driven plate-drive plate-driven plate-drive plate-driven plate-drive plate
14. Assemble the reduction planetary gear.
NOTE: If the reduction planetary gear assembly is difficult, assembly is easier if the work is performed using the following procedure:
1. Remove the drive plates and driven plates.
A : Drive plate
B : Driven plate
2. Remove the retaining plate.
3. Assemble the drive plates and driven plates to the reduction planetary gear shown in the figure.
A : Drive plate
B : Driven plate
CAUTION: The driven plate has a similar shape to the retaining plate used for the 2-6 brake clearance adjustment. Before assembling the driven plate, always verify the plate thickness and the shape.
NOTE:
- Drive plate size: Outer diameter approx. 171.9 mm {6.768 in}
- Driven plate size: Inner diameter approx. 148 mm {5.83 in}, thickness approx. 1.6 mm {0.063 in}
- Align the spline positions of the driven plate while assembling.
Assembly order
Drive plate-driven plate-drive plate-driven plate-drive plate-driven plate-drive plate
4. Assemble the retaining plate to the reduction planetary gear as shown in the figure.
NOTE:
- Retaining plate size: Inner diameter approx. 148 mm {5.83 in}
- Assemble the retaining plate so that the splines of the retaining plate and the splines of the driven plates are positioned as shown in the figure.
5. Assemble the parts assembled together in Steps (3) and (4).
15. To verify that the reduction planetary gear is securely assembled, measure the distance shown in the figure.
A : Reduction planetary gear end (rear internal gear end)
B : End cover end (alignment surface with transaxle case)
NOTE: Recommended measuring instrument: Depth gauge, straight edge ruler
Specification
61.3-63.1 mm {2.42-2.48 in}
- If not within the specification, remove the reduction planetary gear and reassemble.
NOTE: Measurement method
1. Set two straight edge rulers on the reduction planetary gear (rear internal gear) as shown in the figure.
A : Straight edge ruler
2. Measure the positions (2 locations) shown in the figure using a depth gauge and calculate the average value.
3. Subtract the thickness of the straight edge ruler from the average value.
16. Assemble the retaining plate using the following procedure:
1. Measure the 2-6 brake clearance and select the appropriate retaining plate. (See BRAKE CLEARANCE MEASUREMENT/ADJUSTMENT.)
NOTE: If the retaining plate is assembled for the 2-6 brake clearance measurement/adjustment, the following retaining plate assembly procedure is not necessary.
2. Assemble the retaining plate selected in Step (1).
A : Selection
NOTE: Retaining plate: Inner diameter approx. 148 mm {5.83 in}
17. Assemble the springs and retainer component.
NOTE: Springs and retainer component size: Inner diameter approx. 150.6 mm {5.929 in}
18. Assemble the 2-6 brake piston to the brake housing using the following procedure:
1. Apply ATF (ATF FZ) to the 2-6 brake piston lip.
2. Assemble the 2-6 brake piston.
19. Assemble the brake housing using the following procedure:
1. Assemble the brake housing.
2. Assemble and tighten the bolts shown in the figure uniformly.
CAUTION: If the bolts are not tightened uniformly, the brake housing will slant and parts could be damaged due to the spring force of the springs and retainer component in the brake housing.
NOTE: Bolt size: M6x1.0 bolt, length to approx. 25 mm {0.98 in}
Tightening torque
8-10 N.m {82-101 kgf.cm, 71-88 in.lbf}
20. Perform an operation verification of the 2-6 brake using the following procedure:
1. Blow compressed air into the oil passage shown in the figure and verify the operation condition of the 2-6 brake.
WARNING: Always wear protective eye wear when using the air compressor. Otherwise, ATF or dirt particles blown off by the air compressor could get into the eyes.
NOTE: To prevent damage to parts, always use an air compressor which is adjusted to the indicated pressure.
Compressed air pressure
0.39-0.44 MPa {4.0-4.4 kgf/cm2, 57-63 psi}
- If there is a malfunction, perform disassembly again, verify the cause and repair the applicable part. (See END COVER COMPONENT DISASSEMBLY.)