Internal Adjustment: Clutch Brake Clutches

The following steps outline the typical internal adjustment procedure for manual and self-adjusting angle spring clutches equipped with a clutch brake.

1. Remove the inspection plate below the clutch housing.

2. With the clutch engaged (pedal up), measure the clearance between the release bearing and the clutch brake. This is the release travel. If clearance is less than ½ inch or greater than 9⁄16 inch (typical), continue with steps 3 and 4 below; otherwise proceed to step 5.

3. Release the clutch by fully depressing the clutch pedal.

4. Using the internal adjustment procedures previously described for lockstrap, Kwik-Adjust, and wear compensator adjustment mechanisms, advance the adjusting ring until a distance of ½ to 9⁄16 inch is attained between the release bearing and the clutch brake with the clutch pedal released.

5. If clearance between the release bearing and clutch brake is less than specification, rotate the adjusting ring counterclockwise to move the release bearing toward the engine. If the clearance is greater than specification, rotate the adjusting ring clockwise to move the release bearing toward the transmission.

6. Apply a small amount of grease between the release bearing pads and the clutch release fork.

7. Proceed with linkage adjustment as needed.

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