Clutch Assembly Replacement

Clutch Assembly Replacement

Tools Required

J 26455-A J 35990

Removal Procedure

1. Remove the transmission. Refer to Transmission Replacement Service and Repair in Manual Transmission-Medium Duty.

Important: For 14 inch valeo clutches only.


If the same clutch is to be reinstalled, install a shipping clip under the head of each of the 4 allen head capscrews that attach the drive straps to the pressure plate. The clips will keep the pressure plate in a partially retracted position and make pressure plate installation easier.





2. Remove the bolts (3) and the washers that secure the pressure plate (4) and the driven plate (1) to the flywheel (2).
3. Remove the pressure plate.
4. Remove the driven plate.
5. Inspect the following parts:

* The clutch fork for wear, cracks, or distortion
* The release bearing for roughness
* The driven plate for broken springs, loose rivets, and cracks
* The hub splines for wear and damage
* The pressure plate for wear and damage
* The flywheel for wear or damage

6. Inspect for unnecessary grease or oil on any of the components.
7. Measure the following components:

* The driven plate friction material for thickness
Replace the driven plate if the material thickness is less than 1.27 mm (0.050 in).
* The pressure plate friction surface flatness
Replace the pressure plate if the friction surface flatness is less than 0.10 mm (0.0039 in).

Installation Procedure

1. Apply lubrication to the hub splines.




2. Install the driven plate (1).
3. Install the J 35990 or J 26455 to the center of the driven plate.
4. Install the pressure plate.
5. Install the bolts and the washers.

Notice: Refer to Fastener Notice in Cautions and Notices.

6. Install the bolts and washers securing the clutch assembly to the flywheel.
Starting with the lower left hand bolt, progressively tighten the eight mounting bolts in a crisscross pattern until you achieve the final torque value.

Tighten the bolts to 54 Nm (40 lb ft).

7. Remove the J 35990 or J 26455 from the driven plate.
8. Install the transmission. Refer to Transmission Replacement Service and Repair in Manual Transmission - Medium Duty.
9. Adjust the clutch. Refer to Clutch Assembly Adjustment (13 Inch Valeo Cable) Clutch Assembly Adjustment (13 Inch Valeo Cable)Clutch Assembly Adjustment (14 Inch Valeo Cable) Clutch Assembly Adjustment (14 Inch Valeo Cable)Clutch Assembly Adjustment (MPK Resetting Procedure in Vehicle) Clutch Assembly Adjustment (MPK Resetting Procedure in Vehicle)Clutch Assembly Adjustment (MPK Resetting Procedure Out of Vehicle) Clutch Assembly Adjustment (MPK ResettingProcedure Out of Vehicle)Clutch Assembly Adjustment (Valeo Internal Adjustment) Clutch Assembly Adjustment (Valeo Internal Adjustment)Clutch Assembly Adjustment (Lubrication) Clutch Assembly Adjustment (Lubrication) in Manual Transmission - Medium Duty.