Transfer Clutch: Assembly

Install the transfer clutch piston.
NOTE: Apply CVTF to the transfer clutch piston lip.
Install the return spring.

Fig 1: Installing Return Spring
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Install the transfer clutch piston seal.
NOTE: Apply CVTF to the lip section of transfer clutch piston seal.

Fig 2: Installing Transfer Clutch Piston Seal
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Compress the return spring using the ST to install the snap ring.
ST 18762AA001 COMPRESSOR SPECIAL TOOL

Fig 3: Compressing Return Spring Using ST
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Install the pressure plate, driven plate, drive plate and snap ring.

Fig 4: Transfer Clutch Snap Ring Location
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Blow compressed air through transfer clutch assembly hole, and check the transfer clutch piston operation.
NOTE: Plug the holes through which the compressed air is not blown.

Fig 5: Locating Transfer Clutch Assembly Hole
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Before measuring clearance "A", place same thickness shims on both sides to prevent the plate from tilting.

When the clearance "A" exceeds the limit for use, select the transfer clutch plate set and pressure plate, and adjust the clearance "A" within the initial specified value.

Initial standard:

0.7 - 1.1 mm (0.028 - 0.043 in)

Limit thickness:

1.3 mm (0.051 in)

Fig 6: Checking Clearance Transfer Clutch Plate Set And Pressure Plate

Courtesy of SUBARU OF AMERICA, INC.

Measure the thickness of the pressure plate for the transfer clutch plate set that has been used before replacement.

Select the transfer clutch plate set that uses the pressure plate of which the value is close to the measured value in (1), and check the clearance "A".

Transfer clutch plate set
Part No.	Pressure plate thickness mm (in)
31523AA370	3.3 (0.130)
31523AA380	3.7 (0.146)
31523AA390	4.1 (0.161)
31523AA400	4.5 (0.177)

When the clearance "A" exceeds the limit for use in step 2, replace the pressure plate installed on the lower side of the transfer clutch plate set, and check the clearance "A" again.

Pressure plate
Part No.	Thickness mm (in)
31593AA151	3.3 (0.130)
31593AA161	3.7 (0.146)

When the clearance "A" exceeds the limit for use in step 3, select the transfer clutch plate set that was not used in step 2, and adjust the clearance "A" again.

Check the clearance between snap ring and pressure plate. Ref. to INSPECTION , Transfer Clutch.
Using the ST, install the ball bearing.
NOTE: Use a new ball bearing.

ST1 398177700 INSTALLER

ST2 499277000 INSTALLER

Fig 7: Installing The Ball Bearing
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