Preassembly
Toggle Deductions/Stay Into Foil Options
MKIV Unit 1
7
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 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
3
1
/
4
"
(83mm)
Eye/Jaw Reversible
1/2" (12.7 mm)
Clevis Pin
Jaw/Jaw
1
/
2
" (12.7 mm)
Clevis Pin
Make sure your toggle
looks like this!
3"
(76 mm)
Use dimensions of Harken toggle below to build stay to correct length.
Tip: Turnbuckles should be 1/2– to 2/3rds open to allow shortening for new wire stretch and for
fine-tuning mast rake.
Long Link Plate w/Toggle
*
1
/
2
" (12.7 mm) Clevis Pin)
**
5
/
8
" (15.9 mm) Clevis Pin
*2
5
/
16
" (59 mm)
**2
11
/
16
" (68 mm)
Stud/Jaw
5
/
8
" (15.9 mm)
Clevis Pin
Make sure your toggle
looks like this!
3
7
/
8
"
(98 mm)
8
7
/
8
"
(225 mm)
Thread
5
/
8
" - 18 LH
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.
