Direct Clutch

^ Tools Required:
- J 8001 Dial Indicator Set
- J 26900-13 Magnetic Base





MEASURE
- Direct clutch piston stroke before disassembly using a J 8001 and a J 26900-13. Temporarily install the direct clutch assembly onto the center support and place the J 8001 plunger on the direct clutch piston. Apply 392 to 785 kPa (57 to 114 psi) of compressed air into the second fluid passage from the left in the overdrive case and MEASURE direct clutch piston stroke. Standard direct clutch piston stroke is 0.19 to 1.75 mm (0.008 to 0.068-inch). If direct clutch piston stroke is not within specification, use a 3.6 mm, 3.8 mm, or 4.0 mm (0.141-inch, 0.149-inch or 0.157-inch) direct clutch flange to adjust direct clutch piston stroke.





REMOVE OR DISCONNECT

^ Tool Required:
- J 41681 Clutch Spring Compressor

1. Direct clutch assembly from center support.





2. Direct clutch snap ring from direct clutch drum.





3. Direct clutch flange, clutch discs and clutch plates from direct clutch drum.





4. Direct clutch piston return spring snap ring from direct clutch piston retainer using a J 41681 and a press.
5. Direct clutch piston return springs from direct clutch piston.

NOTICE: When using compressed air to remove components, air pressure should not exceed 98 kPa (14 psi).





6. Direct clutch piston from direct clutch drum by temporarily installing the direct clutch drum assembly onto the center support assembly and apply low pressure compressed air into the second fluid passage from The left as shown in the image.
7. Direct clutch Inner piston by Applying low compressed air pressure into the.fluid passage at the extreme right as shown in the image.
8. O-rings from inner and outer direct clutch pistons.

MEASURE
- Direct clutch piston return springs. Standard free length should fall within 15.13 mm (0.59-inch). If not within specification, replace direct clutch piston return springs.

CLEAN
- All Direct clutch components and dry thoroughly.

INSPECT
- Direct clutch disc for excessive wear or damage. Replace as necessary.
- Direct clutch pistons for cracks or porosity. Replace as necessary.
- That the check ball is free by shaking the piston.





- Apply low air pressure to check ball opening and check for leakage.

INSTALL OR CONNECT

^ Tool Required:
- J 41681 Clutch Spring Compressor

1. New O-rings to direct clutch inner and outer pistons. Lubricate with A/T fluid.
2. Direct clutch inner piston to clutch drum.
3. Direct clutch outer piston to clutch drum.

Important
- When installing return springs, be careful so that the return springs do not tilt or fall out of place.

4. Direct clutch piston return springs onto direct clutch piston.
5. Direct clutch piston return spring snap ring onto direct clutch piston return spring retainer using a J 41681 and a press. Do not align opening of snap ring with cutout in direct drum.
6. Clutch plates and discs in the following order:
A. Plate
B. Disc
C. Plate
D. Disc
E. Plate
F. Disc
G. Flange





Important
- The direct clutch flange must be installed with the flat side facing down and the stepped portion facing upwards.

7. Direct clutch snap ring into direct clutch drum.
8. Race, thrust bearing and race in that order. Lubricate with J 36850.