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Hello everyone. Another tutorial on changing gears, this time for mechanical machines with a four-step buttonholer. I'm going to make two videos so it won't be too long. In this video, I'll teach you how to disassemble the buttonholer and the gear. In the next one, I'll show you how to assemble and adjust the stitch on the machine. And don't miss the live broadcast next week with a prize draw for those who are watching, to celebrate reaching 5k subscribers. Thank you very much for everything and see you then! http://abre.ai/como_trocar_engrenagem