Harken 7412.13 12V MKIV Electric Jib Reefing & Furling - Manual (Page 36)

Storage – Mast Down
In areas where it freezes, do not store system where water can accumulate in foils. When water freezes it will rupture
aluminum. Store foils under cover, with grooves facing down or on an angle so water will run out.
Storage/Transporting
Do not store or transport system with lower unit extending beyond mast. Remove lower unit and halyard swivel for
storage and transport.
After Storage or Transport
After storing or transporting unit, clean thoroughly including tack and halyard swivel ball bearings. See instructions
above.
Loosen Foil Clamp Before Slacking Backstay
In order to prevent foils from locking against upper stay terminal when backstay is released, loosen foil clamp screws and
lower foil before loosening backstay.
Clean and Lubricate
Keep unit clean. When you wash boat, flush unit with soap
and fresh water. Occasionally lower sail and flush halyard
swivel with soap and fresh water.
Foils may be cleaned by washing with soap and water.
A scrap of luff tape may be run up foil to scrub inside
grooves. Sail luff tapes may be sprayed with McLube ®
to reduce friction during sail changes.
Maintenance Clean/Inspect/Replace Line/Remove Furler
36 MKIV Unit 2E, 3E
Inspect
Inspect unit for signs of chafe, wear or damage.
Inspect clevis and cotter pins below and inside lower unit for
signs of loosening. Check headstay tension for signs of loosening.
Inspect swage fitting and lower toggle for signs of stress
corrosion.
Inspect Norseman or Sta-Lok terminal or rod terminal for
signs of loosening.
Inspect all screws on unit to be sure they have not loosened.
Inspect foil to make sure that it has not dropped into lower unit.
Periodically inspect wire for signs of wear or unraveling.
WARNING! Parts can wear, loosen, or corrode
and can break at load. Periodically inspect items
listed below and any others as necessary. See
www.harken.com/manuals for additional safety
information.
WARNING! Spray sails off boat so Mclube ®
spray does not contact deck. Decks sprayed with
McLube will be very slippery which can lead to
slipping and falling overboard.