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How to Adjust Eaton Fuller Clutches

by Rolando Vera

A clutch is a pedal or lever found in motor vehicles that is responsible for engaging and disengaging the different gears of the car. Without clutches, changing speeds, going in reverse or even parking a vehicle would be impossible. Eaton Fuller manufactures a specific brand of clutches designed for use in semi-tractor trailors. While some repair jobs are quite challenging, this one is simple enough to be done in a few minutes.

1

Remove the inspection cover plate. The cover plate holds the transmission's clutch housing in place, and it usually is secured with screws at each of the four corners. Use a screwdriver to remove these screws and place them in a secure location.

2

Clean the clutch housing. With a clean dry cloth, wipe away any dirt, grease or grime. Any metal fillings or other debris that are found in the clutch housing should also be removed at this time.

3

Identify the adjuster bolt. Traditionally, this bolt is found on the bottom of the clutch housing, where it can be reached with a socket and ratchet.

4

Rotate the adjuster bolt. Ask a friend or co-workers to push and hold the clutch to the floor. Attach a 5/8-inch wrench to the adjuster bolt, and apply enough pressure so as to allow the bolt to be pressed into the housing. Turn the screwdriver to the right, moving the adjuster bolt two complete rotations.

5

Loosen pressure on the adjuster bolt, allowing it to pop back into the "locked" position. Instruct the individual holding the clutch to the floor to release it back to its original position.

6

Evaluate clutch brake position. Insert a 3- to 4-inch bolt with a 1/2-inch head between the throw out bearing and the clutch brake. Ideally, the bolt should fit in this position loosely. If inserting the bolt in this space is difficult, the adjuster bolt should be rotated once more.

7

Replace the inspection cover plate. Use a screwdriver to tighten the bolts previously removed. Apply enough pressure to the bolts to ensure the security of the plate.

Items you will need

References

About the Author

Rolando Vera is an exercise physiologist working in cardiac and pulmonary rehabilitation in San Antonio, Texas. He served in the U.S. Marine Corps for several years and holds a Bachelor of Science in kinesiology.

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