Harken 7410.10 MKIV Jib Reefing & Furling - Manual (Page 13)

Assembly Top foil
Place halves of plastic bushings on stay
so hooked part of longer section faces out.
Tip: With foil screw holes up as shown
below, place longer half of isolator
with hook on upper half.
Install trim cap. Place each side over wire.
Push trim cap into foil to start then tap
in using hammer.
Install trim cap screws.
MKIV Unit 0 13
Red Loctite ®
Halyard Deflector