There is a slight amount of ore in the steering gear

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2.

It refers to the free clearance of the steering wheel and the angle that the steering wheel can turn without deflection of the steering wheel

1. Regulatory requirements for vehicle steering clearance:

according to Article 6.4 of the national standard GB 7258-2017 technical conditions for motor vehicle operation safety, the requirements for vehicle steering clearance are as follows:

A) motor vehicles with maximum design speed greater than or equal to 100kN / h: 15 °

b) three wheeled vehicle: 35 °

C) other motor vehicles: 25 °

2. The reason of automobile steering clearance:

between the steering wheel and the steering wheel, there are steering transmission shaft, steering gear, steering transmission mechanism and other parts, the connection between them can not be without clearance, and there can not be deformation in the steering process, so the comprehensive reaction of each clearance and deformation on the steering wheel proces free stroke

< H2 > extended data

automobile steering principle

automobile steering is to use the steering wheel to drive the steering gear, so as to make the rack and pinion steering gear work, make the front tie rod swing left and right, and make the front wheel proce an angle, so as to proce the steering effect

automobile steering system is a system used to maintain or change the driving or reversing direction of the automobile, which is located in the front of the automobile and mainly divided into mechanical steering system and power steering system

1. Mechanical steering system:

the mechanical steering system mainly uses the driver's physical strength as the steering energy, and is composed of steering control system, steering gear and steering transmission system

2. Power steering system:

the power steering system takes the physical strength of the driver and the power of the engine as the steering energy. In general, most of the energy required for steering is provided by the engine. Power steering system is more portable than mechanical steering system, but it is more prone to failure than mechanical steering system because of its complex structure

3. There is a large amount of ore up and down the steering wheel. First check whether the steering wheel is loose. The car shake may also be related to this.

4. It may be caused by the wrong data of the four-wheel alignment, or by the wear of the gear rack inside the steering gear. Specific suggestions: go to the maintenance point for inspection.

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6. Check the tie rod ball head. Is there a large amount of ore when driving the steering wheel< According to their different structural characteristics, they can be divided into rack and pinion steering gear, circulating ball steering gear, worm roller steering gear and worm finger pin steering gear, etc

rack and pinion steering gear
rack and pinion steering gear is composed of steering gear integrated with steering shaft and rack integrated with steering tie rod. Compared with other types of steering gear, rack and pinion steering gear has the following advantages: simple structure and compact structure; The shell is made of aluminum alloy or magnesium alloy by die casting, and the mass of the steering gear is relatively small; The transmission efficiency is up to 90%; When there is a gap between the gear and the rack e to wear, the spring which can be adjusted by the pressing force installed on the back of the rack and close to the driving pinion can automatically eliminate the gap between the teeth, which can not only improve the stiffness of the steering system, but also prevent the impact and noise ring operation; The volume occupied by the steering gear is small; There is no steering rocker arm and tie rod, so the steering wheel angle can be increased; The manufacturing cost is low.

7. The problem may be that the clearance between the steering gear and the ball heads on both sides is too large.

8. It doesn't have to be a
steering machine
, but there may be a pull rod or a
ball head
. When the steering machine mines, you can feel whether there is a mine by gently swinging from left to right,

9. The oil leakage of automobile steering gear is that the oil seal in the cavity is aged or damaged, resulting in loose sealing and leakage of steering fluid
1. There are only several locations for the steering gear to leak oil: the upper cover of the steering gear, the side end cover and the connecting part of the steering shaft crank arm. These three parts have sealing rings, which can be solved by replacing the new oil seal and sealing ring
2. If there is oil leakage in other parts, it is likely to be trachoma or crack in the steering gear housing. Small cracks and trachoma can be plugged with loctite 290 high permeability sealant
3. If there is still oil leakage after changing the sealing gasket or sealing sealant, the steering gear assembly needs to be replaced.
in addition, do not drive too hard when driving, and try not to hit the wheel in place as much as possible. Often, the oil seal will be washed and pulled, causing damage to the steering gear and oil leakage.

10. Hello friend, the steering gear of this car can be adjusted. In addition, check whether the universal joint under the direction tube is mine? Also check the direction of the tie rod ball, is not mine? Also check whether the ball head of the lower arm is open. These things will cause the direction of the box. I hope my answer can help you. If you have any questions, please feel free to contact me. BBA Mercedes Benz BMW Audi maintenance wish you a happy life, all the best, money rolling!