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1.After shaking the ball
joint stud several times, install the nut to the stud and
use special tool preload socket (MB990326) to measure the
turning torque of the ball joint. Standard
value: 1.47 - 7.84 N·m 2.If the
measured value exceeds the standard value, replace the upper
arm ball joint assembly. 3.If the measured value
is lower than the standard value, check that the upper arm
ball joint turns smoothly without excessive play. If so, it
is possible to use that ball joint.
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