How to adjust the joint screw
(1) When the joint screw gets loose, stripping work becomes dull.
(2) Hold the hex bolt (Reverse side) with a wrench.
(3) Fasten the joint screw with a hex key wrench. (Torque less than 2 N/m)
Do not attempt to adjust the bolt with nut from both sides with 2 pcs. of wrenches, which causes the screw joint broken. Use a hex key wrench for fastening with torque of less than 2 N/m.
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