Will you judge the malfunction of the clutch?

The abnormal noise of automobile clutch bearing is mainly manifested as: during the use of clutch, when the clutch pedal is stepped down or relaxed, abnormal noise is produced. It can be judged when engine idling and vehicle start.

1. when the engine is idle and the clutch pedal is loosened, the clutch sends out a border or intermittent impact.

If the pedal can be hooked with the foot, the sound of the hook is disappearing, indicating that the pedal spring is soft, shedding or broken, so that the separation shaft can not be returned to the original place and the separation lever is scraped, and the back spring should be replaced at this time.

If the pedal position can be back in place, the bottom cover of the clutch should be removed to check whether the separation spring is effective and whether the separation bearing and the separation lever clearance are in accordance with the regulations, and should be replaced and adjusted when the discrepancy is not consistent.

2., when the engine is idle, it will make noise during the clutch pedal.

(1) gently tread on the clutch pedal, remove the free travel of the pedal, and send out the sound of "sand sand" when separating the contact between the separation bearing and the inner end of the separation lever, and it can be judged as the sound of the separation bearing. First lubrication of the separation bearing, if there is still sound after lubrication, the bearing because of the lack of oil ablative or damage or bearing Yan Zhongsong open, bearing ball broken, card death can not rotate, should replace the bearing.

2. Continue to step down the pedal, if you hear a kind of "clam" metal friction sound, we should remove the bottom of the clutch and observe the rotation of the separation bearing. It shows that the separation bearing has been sintered and can not be rotated, and the bearing should be replaced with the sliding grinding of the inner end of the lever.

(3) after stepping down the clutch pedal, we hear the rolling noise, which is the separation bearing frame is damaged or the ball is broken, and the bearing should be replaced.

4. When you step on the clutch pedal to the end or completely step on the bottom, if you hear a "carbazar, claka" sound, if the engine speed is changed repeatedly, the noise will be bigger, the pedal is relaxed and the noise disappears. For the double disc clutch, this is caused by the wear and loose of the pin hole and the drive pin of the middle pressure plate. When it is serious, the drive pin can be transferred to 90 or to replace the thickened drive pin. It can also be replaced with a coarse separation conical spring to stabilize the middle pressure plate so that it can not slosh on the drive pin.

For the monolithic clutch, the impact of the clutch cover drive hole and the middle pressure disk bump match.

2., the vehicle starts, and the noise is relaxed when the clutch pedal is relaxed.

The clutch will be combined to hear the sharp scream, then step down the pedal, the noise disappears, and the relaxation pedal appears again. This is the result of the breakage of the steel plate or the rivet head exposed to the pressure plate or the flywheel, and should be overhauled.

Second, when the clutch is combined or separated, if the clutch sends a "carbazole" and "anti" metal impact sound, and the heavy car starts more obviously, it is caused by the opening of the spline hole and its shaft with its shaft. When it is serious, it should be overhauled or replaced. If you hear the clinging sound of "carbazole", this is a free friction piece loosened on the steel sheet. Moving or separating lever and window hole strike ringing. For example, the wear and tear on the boss of the NJ1061 clutch, wear and tear of the CA1091 clutch, the wear on the window hole will cause noise. For the loosening of the driven disc rivet and the over base of the spline wear, it can be checked by the following methods: the engine is extinguished, the clutch bottom is dismantled, the clutch pedal is tread, and the other uses the lift to move the follower, such as the large amount of loose loose, which is the fault.

3. clutch pedal at very slow speed up, vehicle collision started a "choking when" sound. It is caused by the sudden engagement of the main and driven parts. The reason is from two aspects: one is the stagnation of the rod transmission card, which makes the pressure disc suddenly press the driven disc to break the car; the two is from the deformation of the movable disk or the rubbing liner with oil pollution, causing the clutch to continue to engage and cause the collision.

4. in a word, technical inspection should be regularly or unregularly carried out for the technical condition of the clutch, to find out the fault early and find out the causes, to eliminate it in time, and to prevent it in time, to meet the technical requirements of combining smooth and reliable, fast and thorough separation and smooth transmission.