Yanmar SD 20 30 31 SD20 SD30 SD31 Sail Drive Unit Repair Service Manual - IMPROVED -

This complete factory Yanmar Model SD20, 30 & 31 Sail Drive Unit Repair Service Manual provides detailed instructions for maintaining and servicing your Sail Drive. It includes comprehensive illustrations, exploded diagrams, drawings, and photos to guide you through the repair procedures.

The manual features bookmarks, searchable text, indexing, and improved quality. It is compatible with all versions of Windows and Mac, and navigation is made simple with chapter bookmarks and keyword search capability.

The contents of the manual include:

• General
• Disassembly
• Reassembly
• Shim Adjustment (Gear Backlash Adjustment)
• Bearing & Oil Seal Replacement
• Tightening Torques for Nuts & Bolts
• Electrical Wiring
• Modifying The Long-Reach Unit (Optional Parts)

This manual is perfect for tune-ups, regular maintenance, and repairs, providing mechanical details and step-by-step instructions. It is useful for both professional mechanics and DIY enthusiasts.

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