Series 170R Top Down Furler Specification Summary

1. Product Overview

The Series 170R Top Down Furler is a marine furling system designed for efficient sail handling. It includes components such as the furler body, top swivel, shackles, fairlead, and snap-shackle adaptor. The system is proprietary to Ronstan International Pty. Ltd.

2. Key Specifications

• Maximum Working Load (MWL): 5000 kg (11020 lb) for the furler; 2500 kg (5510 lb) for the top down attachment.
• Breaking Load (BL): 10000 kg (22040 lb) for the furler; 5000 kg (11020 lb) for the top down attachment.
• Weight: Furler assembly weighs approximately 2470 g (87.1 oz).
• Furler Line Diameter: 10 mm (3/8 inch).
• Material: Components such as the luff line thimble are made from anodised AL6061 aluminum.

3. Components and Accessories

• Top Swivel (RS020010): MWL 5000 kg, BL 10000 kg, weight 800 g.
• Optional High Dynamic Load Top Swivel (RS020010D).
• Snap Shackle Adaptor (RS017020T): MWL 4500 kg, BL 9000 kg, weight 380 g.
• 2:1 Fairlead (RS020030): MWL 5000 kg, BL 10000 kg, weight 298 g.
• HR Shackle (RS020050): BL 10000 kg, weight 237 g.
• Luff Line Thimble (RS020040): Made from anodised AL6061, weight 86 g.

4. Installation and Maintenance Procedures

Line Preparation: Use 10 mm (3/8") polyester braid furling line. Pre-splice the furling line with recommended splicing techniques to ensure performance and durability.

Alignment: Ensure the furling line is correctly aligned with the guide arm and fairlead to prevent wear and ensure smooth operation.

Guide Arm Adjustment: The guide arm can be loosened and repositioned using metric Allen/Hex keys. Proper seating and tightening of bolts and nuts are critical for secure installation.

Lubrication: Apply Ronstan Sailfast or similar PTFE-based lubricants to bearings and moving parts to prevent corrosion and maintain smooth operation.

Regular Maintenance: Rinse components with fresh water regularly, inspect for wear, and reapply lubricant as needed. Bearings are factory sealed with a three-year warranty.

5. Usage Recommendations

• Use the snap shackle adaptor for quick and secure attachment.
• Ensure the furling line is free of twists and properly tensioned.
• Follow Ronstan’s guidelines for splicing and line feeding to maximize system performance.
• Use recommended tools and lubricants to maintain system integrity.

6. Safety and Limitations

• Do not exceed the specified MWL and BL ratings to avoid equipment failure.
• Ensure all fasteners are properly tightened and components are correctly aligned before use.
• Regularly inspect all parts for signs of wear or damage and replace as necessary.

7. Additional Notes

The document emphasizes the exclusive property rights of Ronstan International Pty. Ltd. and the importance of following their specifications and maintenance instructions to ensure optimal performance and safety.

All dimensions are in millimeters unless otherwise stated. The document includes detailed assembly steps and alignment instructions, highlighting the importance of correct installation for system reliability.