What is the specific situation of clutch failure?

Failure phenomenon of incomplete clutch disengagement. When the engine is idling, press the clutch pedal, and there is a gear impact sound in the gear, and it is difficult to hang people; If you barely get into gear, the engine stalls when the clutch pedal is not fully relaxed. Cause of the failure.

The clutch pedal free travel is too large. The separation lever is bent and deformed, the support is loose, and the bearing axle pin is out of place, making it difficult to adjust the height of the inner end of the separation lever. The separation lever is not properly adjusted, its inner end is not in the same plane or the inner end height is too low.

The intermediate pressure plate of the double plate clutch is not properly adjusted, the individual separation spring is fatigued, the height is insufficient or broken, and the intermediate pressure plate is not flexible on the transmission pin or in the clutch drive window. The driven disc steel plate is warped, the friction plate is cracked, or the rivet is loose. The newly replaced friction plate is too thick or the driven disc is installed incorrectly.

The spline hole of the driven disc is stuck with the splined shaft of the first axis of the transmission. The clutch hydraulic control mechanism is leaking, there is air, or the oil volume is insufficient. The spring elasticity of the diaphragm is weakened.

The engine mount is worn or damaged, and the engine is not concentrified with the transmission. Fault diagnosis and troubleshooting. Check the free stroke of the clutch pedal, adjust it if the free stroke is too large, otherwise check whether the hydraulic control mechanism has insufficient oil in the reservoir or air in the pipeline, and if there is air, make necessary elimination.

If it is not the above issue, you should continue to check. Check the height of the inner end of the separation lever, if the height of the separation lever is too low or not in the same plane, adjust it, otherwise check whether the driven disc is reversed, if it is all right, continue to check. Check whether the driven disc is warped and deformed, whether the rivet is falling off, whether the driven disc is stuck in the axial movement, etc., and if so, replace or repair it.

1. The fault phenomenon of heavy clutch pedal.

Cause inspection method and maintenance failure phenomenon: the foot clutch pedal is heavy, the foot is easy to get tired, and there is a significant difference in the clutch pedal force compared with the same other vehicles.

2. Causes of clutch failure:

Separation master pump assembly: improper adjustment, pedal too high, and no idle stroke.

Driven disc (friction plate) assembly: the friction plate has a large amount of wear (worn to the rivet of the friction plate), the clutch master pump, the sub pump, the separation fork, the separation bearing and other hairpins, the movement is not flexible.

The working surface of the flywheel and the working surface of the pressure plate are worn out (the wear is exceeded.

Separation refers to excessive wear (the arc at the end of the finger has been smoothed), and excessive wear of the separation bearing (the thrust plane grinds out of the concave arc).

Clutch failure mainly has the following situations: First, wet clutch failure: slippage.

The reasons are as follows: clutch disc grinding loss; The clutch does not have a free stroke; The clutch spring fails. The troubleshooting methods are:

Adjust the clutch stroke and replace the clutch plates and springs. Second, the clutch cannot be disengaged. Hold the clutch handle tightly and the electric car can still be driven, making shifting difficult or not engaged.

The reasons are: the clutch grip has a large free stroke; clutch plates are deformed and too thick; The clutch drum chute grinds out the grooves. The troubleshooting methods are:

Adjust the clutch stroke, trim or change the clutch plates. Thirdly, the automatic clutch is faulty: slippage.

There are several reasons for this; insufficient displacement between the clutch disc and the crankshaft; The contact area between the friction plate and the shell is too small; Centrifugal hoof block pin shaft rust; The surface of the friction plate is unclean and oily; The weight of the three centrifugal throws is not equal, or one of the friction plates falls off. Troubleshooting should start from two aspects: one is to check the contact between the friction plate and the shell, and at the same time check whether the centrifugal hoof block pin can rotate flexibly; The second is to check whether the crankshaft nut is loose.

Fourth, dry clutch: skidding. When the speed of the crankshaft increases, the speed of the vehicle increases slowly.

The reasons are: oil stains on the clutch plate or water I clutch free volume is uncomfortable; The clutch spring fails. Friction plates are worn or cracked. Troubleshooting should be handled on a case-by-case basis.

c Transmission failure. The fault is mainly manifested as automatic gear shifting. When the electric car is moving, the gear is automatically taken off and returned to the neutral position.

The reasons are as follows: excessive gear wear; excessive bearing wear; The sliding spline hole and spline of the gear are too worn; The camshaft groove and pin are loose after wearing, and the fork and gear groove are worn loosely, so that the gear can not be in place. The way to troubleshoot is to replace worn parts.

d Faulty braking device. The failure manifests itself as a brake failure. There are several reasons for this;

Worn brake pads; Poor contact between the brake pads and the hub; brake cam wear; The brakes are soaked with water or oil; wear of the brake shaft; Brake stroke adjustment is uncomfortable. The way to troubleshoot is to replace worn brake pads and other worn parts.

a) Clutch slippage. When the clutch pedal is completely relaxed, the car is weak to start or go uphill with heavy loads, and the speed of the car cannot be increased when accelerating, and there is smoke and burning smell at the clutch in severe cases. Its essence is the lack of friction torque, which is mainly caused by the reduction of the clutch compression force or the reduction of the friction coefficient of the friction surface.

b) Clutch squeak. The clutch makes an abnormal noise during clutch engagement or disengagement, as well as when the rpm or vehicle speed changes. It is mainly due to improper adjustment, poor lubrication, abnormal friction or collision of parts.

c) Incomplete clutch disengagement. It is still difficult to put the clutch pedal on the end, and the car rushes forward or turns off without lifting the clutch pedal after putting on the gear. It is mainly caused by improper clutch adjustment, deformation of pressure plate or driven disc, and air resistance in the clutch control oil circuit affecting the complete separation of the clutch.

The common faults of the clutch are: 1. Clutch slippage: when the car starts in low gear, after relaxing the clutch pedal, the car cannot start or it is difficult to start; 2. The clutch separation is not complete

When the engine is idling, press the clutch pedal of the pie bend hole, and there is a gear impact sound in the gear, and it is difficult to hook in; 3. Trembling at start: When the car starts in low-speed gear with dust, gradually relax the clutch pedal and slowly press the accelerator pedal according to the operation procedures, the clutch can not be smoothly engaged and produces trembling, and even the whole vehicle produces trembling in serious cases; 4. The clutch is different.

1. Clutch slippage: The main spike shed phenomenon is that the speed of the car cannot be accelerated with the increase of the engine speed when accelerating, and the power is insufficient and the climbing is weak. 2. If there is an abnormal sound in the clutch, guess early:

The main phenomenon is that the clutch is combined or disengaged to produce an abnormal sound. 3. Incomplete clutch separation: the main phenomenon is that it is difficult to hang the gear or cannot be hung into the gear, and the gear impact sound occurs in the gearbox, which is easy to stall.

This is mainly the problem of dividing the vertical front from the bearing, and the only way to solve it is to change, you can go outside to change it cheaper, and you don't need to be as high as 4 sons. Generally like the clutch plate clutch pressure plate separation bearing, according to each person's actual driving situation, wear is also different, if you feel that there is obvious difficulty in hanging gear, clutch separation is not good, it is best to change.

Hello, most of the half is clutch slippage or gear is not good to hang I hope my old core can help you I wish you a happy car!! [The car has to ask the reputation of the digging question, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello. Stepping on the clutch makes an abnormal noise, and the gear does not go.

Hanging the stall dissenting paragraph sounded.

There is a burning smell. The start is shaky.

Clutch slippage [If there is a problem with the car, ask the master of the car. The 4S shop is professional and technical, and it can be solved in 10 minutes. 】

Hello, the phenomenon of clutch failure is that when the clutch is smoothly engaged according to normal operation, the car does not gradually and smoothly increase the speed, but starts intermittently, and even makes the car shake until the clutch is fully engaged. The following are the reasons: 1. The pressure distribution between the main and slave discs is uneven

The uneven elasticity of the compression spring of the engagement clutch, the inconsistent adjustment of each separation lever or the uneven finger end of the diaphragm spring separation, will make the compression time inconsistent, the pressure plate is uneven, and even make the rolling rock pressure plate skewed, resulting in poor contact between the main and driven discs, and causing the clutch to shake. 2. Weakening of spring elasticity: clutch torsion, shock absorption spring elasticity weakening, clutch compression spring elasticity weakening, diaphragm spring cracks, etc., will cause the clutch to tremble when engaged.

At this point, the spring should be replaced. 1.Improper operation by the driver.

The uphill shift is not timely, and the engine is about to turn off before switching into a low gear; When starting the engine again, first hang up the high gear, and then use the method of relaxing the clutch pedal to force the engine to start; The slip grinding of the clutch friction plate is aggravated.

2.The clutch pressure plate spring is broken, which greatly reduces the ability to transmit engine torque, resulting in slippage.

3.The free stroke of the clutch is too small, the release bearing is pressed on the inner end of the release lever, and the pressure plate is in a semi-disengaged state, which slips when transmitting the backup power.

4.Improper adjustment of the clutch release lever and loosening of the coupling bolts of the clutch and flywheel will also cause the clutch to slip.

5.Clutch friction plates become thinner after wear, harder surfaces, exposed rivets or oily stains are also causes of clutch slippage.

Phenomenon 2: The clutch engagement is not smooth and the vehicle shakes, which is the clutch trembling, which will not only affect the normal start of the vehicle, but also damage the parts in serious cases.

The main causes of clutch tremor are as follows:

1.The engine fixing bolts were loose and the bracket broke.

2.The height of the inner end of the separation jaw is inconsistent. (adjustable).

3.The clutch housing and flywheel housing fixing bolts are loose.

4.The clutch pressure plate is warped and deformed, and the spring elasticity is insufficient.

5.The clutch driven disc rivet is next to the exposed pressure plate.

6.The driven disc is warped and deformed.

7.The front and rear supports of the engine are damaged.

8.The spline groove of the driven disc hub and the spline teeth of the first shaft of the transmission are too large due to wear.