2. One side of the mandrel is connected to the spherical bearing assembly mounted in position by a connecting pin, and the other side is connected to the ball stud by a connecting pin.

3. After the lateral support is adjusted, the small end fixing block of the wing plate is welded on the base plate and the top cover respectively.

4. The tightening of the ball studs supported on the left and right sides should be carried out symmetrically, and the deformation value of the top cover should be measured by the dial gauge to ensure that the force is even, and the value should meet the design requirements.