Harken 7320.10 ESP Jib Reefing & Furling - Manual (Page 32)

32 ESP Unit 0, 1
Problem Probable Cause Solution
Sail will not furl
or unfurl.
Jib halyard is wrapping around the headstay
because halyard swivel is too low.
See “Check Halyards" regarding optimal halyard swivel height. A wire pendant may be
needed at head of sail to raise halyard swivel to proper height. Use a Halyard Deflector.
Jib halyard is too tight. Ease jib halyard.
Spare halyard is wrapping in sail as it furls. Secure spare halyards away from furling headstay by flipping them behind spreaders.
Use a Halyard Deflector.
Salt or dirt in bearings. Flush bearings with fresh water.
Furling line tangled in drum. Overrides are best prevented by using a 7402 ratchet block as the last furling line lead to
maintain proper drag on line while unfurling.
Stop knot catching. Make sure knot is a single overhand and is pushed up inside spool.
Sail full of wind. Luff completely before furling or reefing.
Sail flogging too much. Release a short length of sheet, pull some furling line and repeat.
Jib sheets are not free. Free jib sheets.
Foil out of drum assembly. Reinstall foil in drum assembly and tighten adjuster clamp screws into holes.
No wraps of furling line on spool. Remove sheets from furled sail. Rotate spool to wrap correct amount of line.
Line led through ratchet block backwards. Rerun line.
Halyard swivel installed upside down. Remount swivel correctly.
Sail will not furl
completely.
Insufficient furling line on drum. Remove sheets. Rotate stay, wrapping as much furling line on drum as possible.
Too much line on drum. Adjust amount of line on drum or change position of forward lead block to allow line
to roll evenly on drum.
Spare halyard catching in sail as it furls. Move halyards away from furling headsail as above.
Headstay rotates in
jerks or elliptically.
Insufficient tension on headstay. Tighten headstay and/or backstay to eliminate sag in headstay.
Sail does not stay
furled.
Sail not furled tightly on stay. Maintain drag on sheets while furling.
Furling line not secure. Secure furling line.
Sail will not go up. Luff tape will not go into groove. Check luff tape for fraying.
Check luff tape size.
Sail catching at feeder. Have someone guide sail into feeder. Purchase prefeeder part no. 947.
Dirt in groove. Clean groove.
Sail will not raise
completely or luff
will not tension.
Halyard swivel is hitting end stop or trim cap
screws.
Luff of sail is too long and must be recut. Consult sailmaker.
Angle between halyard and mast is too sharp
and halyard is pulling too much to the rear.
Luff of sail may be too long. Consult sailmaker.
Sail will not
come down.
Halyard is wrapping on headstay. Angle between headstay and halyard is too shallow and must be optimized. See
commissioning "Halyard Wraps."
Sun cover rolls up
inside of sail.
Furling line is wrapped on spool in wrong direction. Unfurl sail and lower it. Disconnect from furler. Note direction of line wrap on spool.
Pull line from spool and rewind in opposite direction. Connect sail and hoist. See
commissioning section of manual.
Line is wearing on
plastic drum assembly
Line is not led through guide posts. Lead line into drum between guide posts.
Troubleshoot Warranty
Loctite ® is a trademark of Henkel AG & Company KGaA
Warranty
www.harken.com/manuals
or call, write, email or fax Harken, Inc.,
Pewaukee, WI USA
Online Product Registration
www.harken.com/FurlingWarranty