Contents: Description ↳ Examination ↳
Description
1. The non-automatic transmission model uses a single-plate, dry friction, diaphragm spring, cable-actuated clutch. The cover assembly comprises a steel cover (pinned and bolted to the back of the flywheel), a pressure plate, and a diaphragm spring.
2. The friction disk can move freely along the splines of the input shaft of the gearbox. Under the action of the diaphragm spring, the pressure plate presses it against the flywheel. Friction linings are riveted to the disk. It also has damping springs to ensure smooth transmission of torque and smooth out transmission jerks.
3. The clutch is driven by a cable from the clutch pedal. The clutch release mechanism consists of a release lever and a release bearing, which presses on the petals of the diaphragm spring. When the clutch pedal is pressed, the release lever, driven by a cable, presses on the release bearing. The release bearing is pressed against the petals of the diaphragm spring, due to which the center of the spring moves inward along the clutch axis. When the center of the spring moves inward, its periphery moves outward and due to this presses the pressure plate, which releases the friction disk of the clutch.
4. When the pedal is released, the diaphragm spring presses the pressure plate against the friction plate. Due to this, torque is transmitted from the engine to the gearbox.
5. On early models, the clutch has a cable drive. The cable connects the clutch pedal to the release lever mounted on the transmission housing. When you press the pedal, the release lever presses on the release bearing, overcoming the force of the diaphragm spring petals.
6 Unlike other Ford models, the clutch pedal is not automatically adjustable, although it has the same toothed segment as models with a self-adjusting pedal. The spring-loaded catch that interacts with the segment in the self-adjusting drive is not installed here, although the pedal moves the segment when it touches the end stops. Pedal adjustment can only be done manually.
7. On late-production models (starting from 1994), the clutch has a hydraulic drive. The main hydraulic cylinder is installed under the pedal, connected by a pipeline to a separate chamber of the reserve tank of the brake hydraulic system.
Pressing the pedal causes the main hydraulic cylinder rod to move, and the pressure generated in the hydraulic system acts on the actuator hydraulic cylinder installed inside the transmission bell. The actuator hydraulic cylinder is built into the clutch release bearing.
8. The advantages of a hydraulic clutch drive over a cable drive are that it does not require adjustments, operates with less pedal force and is subject to less wear.
Examination
9. When troubleshooting the clutch, the following checks can be performed.
- a) On models with a cable drive, first of all check the cable along its entire length for damage. It must be correctly laid, sharp bends are not allowed.
- b) On models with hydraulic drive, check the pipes for damage, dents, leaks.
- c) To check the clutch engagement, bring the engine to idle speed and set the transmission to neutral (clutch pedal released). Disengage the clutch (by pressing the pedal) and wait a few seconds, then engage reverse. No noise (similar to the sound of grinding) should be heard. Such a sound most often indicates a faulty pressure or friction disc. Do not forget that the reverse gear has a synchronizer, so a possible clutch fault may manifest itself due to a slight backward movement of the car. Such movement is more noticeable if the car is parked on a horizontal surface with the parking brake released during the test.
- c) To check that the clutch is fully disengaged in idle mode, hold the clutch pedal approximately one centimeter from the bottom. Shift from first gear to reverse and vice versa several times. If the shifting is not smooth or the car tries to move forward or backward, this indicates a malfunction. Check the adjustment of the cable and clutch pedal.
- d) On hydraulic models, slow or poor clutch engagement may be due to air entering the hydraulic system. Air can be removed from the hydraulic system as described in Chapter 10.
- d) Check that the pedal bushings are not worn out and that nothing is interfering with its movement.
The text was obtained in its entirety from the specified website: FORDBOOK.RU