Harken 7410.11 MKIV Jib Reefing & Furling - Manual (Page 9)

MKIV Underdeck Unit 0 9
Assembly Deck Plate
Carefully locate center point in deck to locate deck plate. Line from mast to underdeck
chainplate must intersect this center point. Mark center fore/aft and athwartships line.
Use template to mark four outer holes and center pilot hole. Make sure closer pair of
holes is forward. Mark center hole for drilling large hole.
71° – 73°
Use 6 mm screws, washers, locknuts and deck sealant to fasten lower unit to deck.
Note: There must be a minimum of
3 /
8
" (9 mm) thread engagement into deck flange.
Note: Deck plate angle
matches a stay angle of
72° when compared to
deck. Angles can vary
between 71° and 73°. If
deck does not fall within
these angles, shims must
be made using structural
adhesive to avoid exces-
sive pressure on deck
and deck bearings.
Once you are certain hole is located in line with
chainplate and any required shimming is done,
drill hole 90° to deck.
Make sure hole is just large enough so deck
plate bears against deck. It is better to make
hole slightly smaller and file opening larger
to fit. Use template to mark large hole and
bolt holes. Use hole saw to drill deck.
Tip: After pilot drill bit clears deck, drill final
hole from bottom using pilot hole to line up
hole drilled from top. This will prevent glass
from chipping.
Tip: Run line through fairlead
and dead end line into spool
before mounting lower unit.