Pull-Type Clutches

As the name implies, a pull-type clutch does not push the release bearing toward the engine; instead, it pulls the release bearing toward the transmission. In clutches with angled coil springs or a diaphragm spring, the release bearing is attached to the clutch cover by a sleeve and retainer assembly. When the clutch pedal is depressed, the bearing, sleeve, and retainer are pulled away from the flywheel. This compresses the springs and causes the pivot points on the levers to move away from the pressure plate, relieving pressure acting on the pressure plate. This action allows the driven disc or discs to float freely between the plate(s) and the flywheel.

On pull-type clutches with coil springs positioned perpendicular to the pressure plate, the release levers are connected on one end to the sleeve and retainer; on the other end they are connected to pivot points. The pressure plate is connected to the levers near the pivot points. Therefore, when the levers are pulled away from the flywheel, the pressure plate is also pulled away from the clutch discs, disengaging the clutch. When the clutch pedal is released, spring pressure forces the pressure plate forward against the clutch disc and the release bearing, sleeve, and retainer return to their original position. Pull-type clutches are used in both medium- and heavy-duty applications and are adjusted internally.

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