Mazda Automatic Transaxle JA5A-EL. Manual - part 30

 

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Mazda Automatic Transaxle JA5A-EL. Manual - part 30

 

 

AUTOMATIC TRANSAXLE 

K1–25

K1

1. Install the SSTs in the clutch drum as shown.

2. Remove the snap ring.

3. Remove the SSTs.

4. Remove the cancel force cover.

5. Remove the O-ring from cancel force cover.

6. Remove the return spring.

Clutch Piston Disassembly Note

1. Assemble the clutch drum to the transaxle case.

2. Using an air gun, blow air into circuit as shown in 

the figure to blow out the piston.

Note

• Regarding the position of the hole into which 

air is blown, refer to item “Oil pressure 

circuit” in this manual.

3. Remove the seal ring and O-ring from the piston.

End Of Sie

LOW CLUTCH INSPECTION

AME571419500A07

Drive Plate Inspection

1. Measure the facing thickness in three places and calculate the average value.

• If not within the specification, replace the drive plates.

Thickness

Minimum: 1.7 mm {0.067 in}

Spring and Retainer Inspection

1. Measure the free length of the spring and inspect for deformation.

• If not within the specification, replace the spring and retainer.

Specification

End Of Sie

LOW CLUTCH ASSEMBLY

AME571419500A08

Assembly Procedure

1. Apply a coat of ATF to new seal ring and new O-

ring, then install them onto piston.

2. Apply a coat of ATF to inside of the drum, then 

install the piston while rotating it by hand.

Note

• After installing required parts to the piston, 

ensure that the piston rotates smoothly by 

hand. If not, the lip seal may be caught.

3. Apply a coat of ATF to a new O-ring, then install it 

to the cancel force cover.

AMU0517A166

AMU0517A073

Outer 

diameter 

(mm {in})

Free length 

(mm {in})

No. of 

coils

Wire thickness x 

wire width (mm 

{in})

108.8 {4.28}

24.4 {0.96}

9

1.1 {0.043} x 

6.0 {0.236}

AMU0517A070

K1–26

AUTOMATIC TRANSAXLE 

4. Position the return spring and cancel force cover.

Caution

•••• Depress the spring retainer only enough to remove the snap ring. Overpressing will damage the 

retainer component edges.

5. Install the SSTs in the clutch drum as shown.

6. Install the snap ring.

7. Remove the SSTs.

8. Install the dished plate, drive plates, and driven 

plates in the order as shown in the figure.

9. Install the retaining plate.

10. Install the snap ring.

End Of Sie

DIRECT CLUTCH PREINSPECTION

AME571419500A09

Clutch Operation

1. Set the direct clutch onto the transaxle case.

Warning

•••• Using compressed air can cause dirt and other particles to fly out, causing injury to the eyes. 

Wear protective eye wear whenever using compressed air.

Caution

•••• Applying compressed air to the assembled clutch pack for longer than 3 seconds at a time will 

damage the seal. Do not apply compressed air for more than the aforementioned time when 

testing the system.

2. Inspect the clutch operation by applying 

compressed air through the fluid passages 

shown.

• If not as specified, replace parts where 

necessary. 

Air pressure

390 kPa {4.0 kgf/cm

2

, 57 psi} max.

AMU0517A166

AMU0517A072

AMU0517A079

AUTOMATIC TRANSAXLE 

K1–27

K1

Clutch Clearance

1. Using thickness gauge, measure clearance 

between the retaining plate and the snap ring.

• If not as specified, replace parts where 

necessary. 

• If the specified clearance is exceeded, 

replace all clutch plates with new ones. Then, 

select a suitable retaining plate so that the 

specified clearance is obtained. 

Clearance

1.8—2.2 mm {0.07—0.09 in}

Retaining plate thickness

mm {in}

End Of Sie

4.0 {0.157}

4.2 {0.165}

4.4 {0.173}

4.6 {0.181}

4.8 {0.189}

5.0 {0.197}

AMU0517A083

K1–28

AUTOMATIC TRANSAXLE 

DIRECT CLUTCH DISASSEMBLY

AME571419500A10

1. Disassemble in the order indicated in the table.

.

Snap Ring Disassembly Note

Caution

•••• Depress the spring retainer only enough to remove the snap ring. Overpressing will damage the 

retainer component edges.

AMU0517A075

1

Snap ring

2

Retainer

3

One-way clutch

4

Needle bearing

5

Snap ring

6

Retaining plate

7

Drive plate 

8

Driven plate 

9

Snap ring 

(See 

K1–28 Snap Ring Disassembly Note

)

10

Spring retainer

11

Return spring

12

Direct piston

(See 

K1–29 Direct Piston Disassembly Note

)

13

O-ring 

14

O-ring 

15

Direct Clutch drum

 

 

 

 

 

 

 

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