Loose joints are common as a doll ages or is frequently posed. Start by safely supporting the doll to prevent accidental falls during disassembly. Gather the correct tools—typically small Allen wrenches or the hex tool specified by the manufacturer—and have spare screws on hand. Carefully remove the joint cap or cover, exposing the screw or connector. Inspect for wear: threads stripped, cracked housings, or elongated holes all signal that a replacement part is needed. If the threads look usable, lightly tighten the screw within the recommended torque; avoid overtightening, which can strip threads or crack materials.
If joints remain loose after tightening, consider replacing worn components—sockets, bushings, or ball joints may need new parts. For silicone-based joints, avoid glues or permanent adhesives that can damage the smooth surface or future disassembly. In many cases, a small amount of thread locker rated for plastics can help, applied sparingly to screws before reinsertion. Reassemble carefully, test the range of motion, and look for even resistance across movements. If you are uncertain or the joint is severely damaged, seek a professional technician who specializes in doll maintenance. A cautious approach protects the doll’s integrity and reduces the risk of further damage.