2. Check for wear on the working surfaces of the ball joints by turning the ball pin manually. Free movement of the pin or its jamming are unacceptable.
3. A more precise check of the condition of the upper ball joint 1 by the size of the radial and axial clearance is carried out on the device 02.8701.9502. To do this, install the ball joint 1 in the socket of the device and tighten it with a screw. Install the indicator 2 in the bracket of the device so that its leg rests against the side surface of the joint housing, and the indicator arrow is at zero.
4. Install torque wrench 3 in the upper socket of the device and, applying a torque of 196 N·m (20 kgf·m) in both directions, determine the total radial clearance in the ball joint using the indicator. If it exceeds 0.7 mm, replace the joint with a new one.
5. The axial clearance in the ball joint is checked in a similar manner, having first changed its fastening in the device. The axial clearance in the joint is allowed to be no more than 0.7 mm.