Harken 7411.11 1/2 MKIV Jib Reefing & Furling - Manual (Page 29)

Washer
Assembly Attach Turnbuckle/Foil System to Boat
Thread turnbuckle and threaded eye to stud
protruding from foil. Assemble
turnbuckle.
Note: If using Sta-Lok
® or Norseman ®
stud, you must use a washer above
stud as shown below.
Taking care not to lose parts, remove bearing caps from
drum assembly.
Tip: Rig a large round plastic wash basin below furler
to catch any parts that may be lost overboard.
MKIV Underdeck Unit 1, 2, 3 29