things to know
1. Undo the bass strap by unscrewing it;
2. remove the bass mechanics cover;
3.in case of standard bass accordion, follow the unblocking process shown in Image A, for free-bass accordion, follow the unblocking process shown in Image B;
4. when remounting the bass cover make sure the air button is fitted into its correct hole.
• keep the instrument away from heat sources such as stoves and radiators, and avoid exposing it to the sun;
• do not expose the instrument to very cold temperatures, NEVER below 0°C, or 32°F;
• clean the instrument only with the provided cloth and water, avoid using aggressive detergents as this can affect the finish of the instrument.
right and left keyboard mechanics
Similar situations can also occur in the left mechanics.