This service and repair manual covers the Yanmar Sail Drive Unit SD20. Designed for professional quality in-depth service and repair, this manual provides comprehensive information to assist owners in performing maintenance and repairs, potentially saving significant costs.

The scope of this manual encompasses detailed procedures for servicing and repairing the Yanmar Sail Drive Unit SD20. It is intended to be a complete resource for understanding and maintaining the unit, ensuring its optimal performance and longevity.