Knowledge Base updated with article - Inserting Arms and Correcting Shoulder Misalignment.
https://shop.smartdoll.jp/collections/articles-category-care/products/inserting-arms-and-correcting-shoulder-misalignment…
While this can occasionally happen with the classic body type, the larger cavity in the upper arms of the Guys and Pear body increases the risk of twisting the shoulder frame—often when users test flexibility by rotating the upper arm shell 180 degrees without the frame moving in sync.
This flips the shoulder frame (image 1), preventing the arm from resting naturally at the body’s side. To fix this, remove the arm and rotate the shoulder frame back 180 degrees until it matches image 2. If needed, use a hairdryer to soften the vinyl, but be careful to avoid burns. If using tools like pliers, pad the teeth with a sponge to prevent damage, and most importantly, take care not to injure yourself or others.
Shoulders are fully inserted when you feel a sharp, distinct click. The process typically involves two stages: the first click may feel dull and give the impression that the joint is secure, but after rotating the arms a few times, they may pop off. To apply even pressure, clasp your palms around the shoulder and push firmly inward until you feel a sharp click. You’ll know the joint is properly set when you hear audible clicks as you move the arm up and down.
Do any of you have issues inserting the arm?
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