CDI FF4 User Manual

FLEXIBLE FURLER INSTRUCTIONS
FF4/FF6
WARNING: READ BEFORE INSTALLING OR USING FURLER
Improper installation of your CDI Flexible Furler or
reinstallation of your current headstay may result in the loss
of your mast and may cause injury to those onboard.
INDEX
- Specifications… Page 1
- Diagram… Page 2
- Parts list… Page 2
- Uncoiling instructions… Page 3
- Straightening instructions… Page 4
- Assembly instructions… Page 5-8
- Sailmaker instructions… Page 8
- Rigger instructions… Page 8
- Notes about Sailing … Page 8
- Notes about trailering… Page 8
- Maintenance and Storage… Page 9
- Warranty… Page 10
SPECIFICATIONS
- Max Headstay Length: FF4: 33’ FF6: 39’
- Max Wire Size: 1/4”
- Max Turnbuckle Pin Size: 7/16”
- Headstay: Threaded swaged stud turnbuckle with
toggle at the bottom, a toggle at the top is
recommended but any secure fitting like a T-bolt at
the top will work. Must be secured by cotter pins.
Navtec turnbuckles are not compatible.
- Furling line: 1/4” double braided line or any low-
stretch line, twice your boat length. Not included.
- Mounting: must not be mounted above the
turnbuckle. Link plates can be used for clearance.
TOOLS
- Hacksaw
- Measuring tape
- Phillips head screwdriver
- Crimping tool (FF6 only)
- Wire cutters (FF6 only)

CDI FF4 Specifications

General

Brand	CDI
Model	FF4
Category	Marine Equipment
Language	English

Summary

Safety and Installation Warnings

General Installation Warning

Improper installation or reinstallation can cause mast loss and injury.

System Specifications and Tools

Key System Specifications

Details on headstay length, wire size, turnbuckle pin size, line type, and mounting.

Required Tools

List of tools necessary for installation and maintenance.

Uncoiling and Straightening Instructions

Safe Uncoiling Procedure

Step-by-step guide for safely uncoiling the luff extrusion with precautions.

Straightening Process

Method for straightening the luff extrusion to prevent kinks and voiding the warranty.

Assembly and Rigging

Halyard Top Fitting Attachment

Attaching the halyard top fitting to the cored or wire end of the halyard.

Luff Extrusion Connection

Connecting the halyard fitting to the luff extrusion's top slot.

Headstay and Drum Assembly

Assembling the headstay, turnbuckle, and furling drum/spool.

Halyard Trimming and Securing

Trimming the halyard to length and securing it for FF4 and FF6 systems.

Rigging Guidelines

Mounting advice for the furler relative to the turnbuckle and compatible fittings.

Sail Handling and Maintenance

Sailmaker Compatibility

Requirements for sail luff tape compatibility and webbing at head/tack.

Notes on Sailing

Advice on luff tension, reefing, and furling line handling during sailing.

Notes on Trailering

Instructions for securely strapping and supporting the furler during trailering.

Maintenance Recommendations

Recommended rinsing frequency and lubricant use for the furler system.

Storing Your Furler

Best practices for storing the furler, avoiding sharp bends and extreme temperatures.

Warranty Information

Limited Warranty Details

Details of the 10-year limited warranty and coverage exclusions.