This document describes the safety precautions for using Yamaha concert marimba.
This document is the Owner's Manual for the Yamaha YM6100 Marimba. It emphasizes critical safety precautions regarding the instrument's weight (106.5 kg) and the handling of the gas spring mechanism to prevent injury or damage. The text warns users to read specific sections on gas spring handling and general safety before attempting to use or move the instrument. This manual is written in Japanese.