What is the reason for the abnormal noise of the JAC M5 direction machine, and it will be stuck in a

If there is no abnormal sound in the clutch engagement, but there is an abnormal sound after pressing the clutch pedal, it may be that the front bearing of the first shaft is damaged. The reason is that when the clutch is engaged, the first shaft rotates with the flywheel, and the front bearing of the first shaft has no relative motion, so there is no abnormal sound or the abnormal sound is not obvious; When the clutch is disengaged, the first shaft is separated from the flywheel, and the inner and outer rings of the front bearing of the first shaft move relatively, and if the bearing is damaged, there is an abnormal sound. If the engine is idling and the transmission is in neutral, there is a less obvious abnormal noise in the front of the transmission, but when the car starts and shifts, the clutch is in a semi-engaged state and makes a strong metal friction sound, which is likely to cause damage to the front bearing of the first axle.

The reason is that when the car starts and shifts, the clutch is in a semi-engaged state, and the front bearing of the first axle is subjected to a large load. If the bearing is damaged, it makes a strong metal grinding sound. If there is an abnormal noise in the front of the transmission, and the abnormal noise disappears after pressing the clutch pedal, it may be that the rear bearing of the first axle and the needle roller bearing at the front of the second axle are faulty.

The reason is that after the clutch is disengaged, the rear bearing of the first shaft and the needle roller bearing at the front of the second shaft do not rotate, and the abnormal noise disappears naturally. If the operation is such as , without stepping on the clutch, tightening the hand brake, and the abnormal noise at the front is aggravated, it is the needle roller bearing at the front of the second shaft that is faulty. The reason is that the clutch is engaged, the first shaft rotates, the hand brake is tightened, the second shaft does not rotate, and the needle roller bearing in front of the second shaft must work, and if it is damaged, there must be abnormal noise.

If the operation is such as, there is a clear abnormal sound during driving, it is most likely caused by the abnormal sound caused by the failure of the constant meshing gear, as for which pair of constant gear failure, it can be judged by listening to the sound from the front to the back by the probe.

It's the outer cage that's broken, and it's broken that way.

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My JAC light truck steering machine is louder on the left and lighter on the right.

My belt is not loose and I just changed the bearing of the steering machine.

My hydraulic fluid has just been changed.

The steering column has been checked, and whether the booster pump is normal, and the sound needs to be checked before it can be determined.

The left and right vertical shafts and bearings have just been replaced.

There is an adjustment bolt on the right side of the steering machine.

Hit the direction of the limit.

1. The steering power oil is too dirty. The booster oil is the force transmission medium, if the oil is too dirty, it will cause poor circulation and difficulty in the general direction. The more serious steering power pump will also "buzz".

2. Lack of booster oil or oil leakage. If the booster oil is gone, it is equivalent to no help, and check whether the relevant system has traces of bridging oil leakage. Focus on checking the steering power oil pot, power oil pipe, and direction suffocation return machine.

3. The engine booster belt is too loose or too tight, or the belt is aging, the tightness can be adjusted, and the belt can only be replaced when it is aging.

4. The bearing of the steering system is too tightly matched or the lubrication is poor; The ball joint of the steering tie rod is adjusted too tightly or there is a lack of oil; Friction caused by bending of the steering shaft and casing is a mechanical fault of the steering system. Some cars can adjust the mating clearance, but most of them can't; The steering tie rod ball joint is generally recommended to be replaced; The steering shaft and casing are bent and can rarely be damaged unless there is a major accident or man-made.

That's the cross-axle, and there's the lack of oil in the axle under the steering wheel.

The directional ball head is out of oil.

Just swap it out.

It should be a steering power pump problem.

Is it ringing when it's full? Do you feel the steering wheel shake together when it sounds? One side or both? If you are on both sides, you can be sure that the direction machine is broken, and it will not ring when it returns to the center, so it can only be a change of direction.

If you rotate the outside and inside balls, it won't sound.

First of all, you need to make sure that the sound is the sound of the turn signal coming on, or the sound of hitting the steering wheel. If it is an abnormal sound that will only occur when the steering wheel is played, then consider the steering system, whether the flat shaft is short of oil. If my explanation helps you, click on the answer in the bottom left corner