Harken 7410.10 MKIV Jib Reefing & Furling User Manual
Page 7

Preassembly
Toggle Deductions/Stay Into foil Options
MKIV Unit 0
7
Tang Attachment
Crosspin
Fork Attachment
Crosspin
2
1
/
8
" (54 mm)
2
5
/
8
" (66.5 mm)
2
7
/
8
" (73 mm)
Clevis Pin
Pin-to-Pin Length
5
/
16
" (7.9 mm)
2
1
/
8
" (54 mm)
3
/
8
" (9.5 mm)
2
5
/
8
" (66.5 mm)
7
/
16
" (11.1 mm)
2
7
/
8
" (73 mm)
Most boats have a chainplate with a single tang.
If boat has two plates forming a jaw, reverse
eye/jaw toggle so eye is down.
IMPORTANT! Remove black plastic caps and
install them so crosspin will be at 90 degrees
to lower clevis pin.
Crosspin
Fork
Attachment
Crosspin
Tang
Attachment
For tang-down installations,
switch plugs to this position.
1. Swage stud at end of wire.
2. Open end of wire and install Norseman or Sta-Lok
®
stud after foil is assembled.
3. Rod adapter nosepiece for Harken rod adapter stud: Threaded nosepiece must
have a positive lock as well as adhesive. Use Harken stud with cotter pins
(see page 19).
Options for Snaking Stay into foils
Use dimensions of Harken toggle below to build stay to correct length.
Tip: Turnbuckles should be 1/2 to 2/3 open to allow shortening for new wire stretch and for fine-tuning mast rake.
WARNING! Using a threaded nosepiece with only adhesive at the
upper rod eye terminal may result in headstay system failure.
Make sure there is a mechanical lock.