Diesel Data: Automotive Repair

1ST, 1ST-Hold, 2ND, 3RD and 4TH Clutches

TOOL REQUIRED
- 07LAE-PX40100 Clutch Spring Compressor Attachment
- 07HAE-PL50100 Clutch Spring Compressor Attachment
- 07GAE-PG40200 Clutch Spring Compressor Bolt Assembly
- 07GAE-PG4020A Clutch Spring Compressor Bolt Assembly
- Or Equivalent

DISASSEMBLE





1. Remove the snap ring, then remove the clutch end plate, clutch discs and plates.





2. Remove the disc spring.
3. Install the special tools as shown.





NOTE: For 1st-hold clutch





NOTE: For 1st, 2nd, 3rd and 4th clutches.





CAUTION: If either end of the compressor attachment is set over an area of the spring retainer which is unsupported by the return spring, the retainer may be damaged. Be sure the special tool is adjusted to have full contact with the spring retainer.





4. Compress the return spring.





5. Remove the snap ring. Then remove the special tools, spring retainer and return spring.





6. Wrap a shop rag around the clutch drum, and apply air pressure to the fluid passage to remove the piston. Place a finger tip on the other end while applying air pressure.

ASSEMBLE

NOTE:
- Clean all parts thoroughly in solvent or carburetor cleaner, and dry them with compressed air.
- Blow out all passages.
- Lubricate all parts with ATF before assembly.





1. Inspect the check valve; if it's loose, replace the piston.





2. Install new O-rings on the piston.
3. Install the piston in the clutch drum. Apply pressure and rotate to ensure proper seating.

NOTE: Lubricate the piston O-ring with ATF before installing.





CAUTION: Do not pinch the O-ring by installing the piston with too much force.

4. Install the return spring and spring retainer, and position the snap ring on the retainer.





NOTE: In this figure, the return spring is for 1st, 2nd, 3rd and 4th clutches. The 1st-hold clutch return spring is a disc spring.

5. Install the special tools as shown.





NOTE: For 1st-hold clutch





NOTE: For 1st, 2nd, 3rd and 4th clutches





CAUTION: If either end of the compressor attachment is set over an area of the spring retainer which is unsupported by the return spring, the retainer may be damaged. Be sure the special tool is adjusted to have full contact with the spring retainer.





6. Compress the return spring.





7. Install the snap ring.
8. Remove the special tools.





9. Install the disc spring.

NOTE: Install the disc spring in the direction shown.

10. Soak the clutch discs thoroughly in ATF for a minimum of 30 minutes.





11. Starting with a clutch plate, alternately install the clutch plates and discs. Install the clutch end plate with flat side toward the disc.

NOTE: Before installing the plates and discs, make sure the inside of the clutch drum is free of dirt or other foreign matter.





12. Install the snap ring.





13. Measure the clearance between the clutch end plate and top disc with a dial indicator. Zero the dial indicator with the clutch end plate lowered, then lift it up to the snap ring. The distance that the clutch end plate moves is the clearance between the clutch end plate and top disc.

NOTE: Measure at three locations.





14. If the clearance is not within the service limits, select a new clutch end plate from the following table.

NOTE: If the thickest clutch end plate is installed, but the clearance is still over the standard, replace the clutch discs and clutch plates.