Ball pin
Inspection of ball pin
1. Check the lower ball pin for loose
a. Raise the front of the car by jack and support it by the frame.
b. Ensure the front wheel is in straight advancing position and
step down the brake pedal.
c. Move the arm upwardly and downwardly; check the
clearance of lower ball pin.
Max. vertical clearance: 0mm
2. Check the upper ball pin for loose;
move the wheel upwardly and downwardly and check the gap of
upper ball pin.
Max. vertical clearance: 0mm
3. Check the rotation of ball pin
a. Remove the ball pin.
b. Shown as figure, shake the ball pin stud forwardly and
backwardly for several times before install the nut.
c. Rotate the nut continuously by torsion meter and 2-4s for a
cycle; record the readout of torsion meter in the fifth cycle.
tightening torque (for rotary):
lower ball pin 0.1
4N m
upper ball pin 0.1
4N m
Disassembly of ball pin
1.Take down the steering knuckle and front wheel hub assy.
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