Preassembly
Foil Length Instructions
8/3/09
Unit 00AL
19
■
Adjusting Foil Length
The length of the furling system is matched to the headstay length by adjusting the number of
7' (2.13 m) foil extrusions used and by cutting the top foil to length from one of the 7' (2.13 m)
foils provided. In some cases the bottom foil is also shortened.
Consult the chart on page 20 - 21 to determine how many full length 7' (2.13 m) foils you need and save these.
You should have an additional 7' (2.13 m) foil to be used for the top foil which will be 7' (2.13 m) or less.
■
Foil Length - Special Considerations
When the turnbuckle is shortened, the upper stay terminal draws into the foil. Make sure there is enough
room above the foil to allow for this. The foil cut chart to follow is based upon the top of the foil riding 2
½
” (63.5 mm) below the center of the marine eye. At this length the turnbuckle can be shortened up to
2" (51 mm). It can also be lengthened.
If the turnbuckle is shortened more than 2" (51 mm), the foil
will need to be shortened further. If you are using a Norseman, Sta-Lok or rod eye the foil will not ride over
the terminal. You may need to shorten the top foil more than what is shown in the chart to compensate.
If
the turnbuckle will not be shortened much, the top foil can be made longer to compensate. This will allow the top
of the foil to ride over the shoulder of the marine eye. It will also allow the halyard swivel to ride higher on the stay.
■
Find Your Pin-to-Pin Headstay Length on page 20 - 21 or 22 - 23 and follow procedures below as necessary.
Pin-to-pin length is described on page 14 - 15.
4IPTHEREARETWODIMPLESINTHEBOTTOMFOIL4HEUPPERDIMPLEISA
GUIDEFORCUTTINGTHEFOIL7RAPTAPEEVENLYAROUNDTHEFOILSOTHETOP
EDGEOFTHETAPERUNSTHROUGHTHECENTEROFTHEUPPERDIMPLE,INETHE
HACKSAWBLADEUPWITHTHISEDGEOFTHETAPE4HESIDEOFTHEBLADE
FACINGTHELOWERPARTOFTHEFOILSHOULDRUNTHROUGHTHECENTEROFTHE
DIMPLE
Drill a hole using a
15
/
64
" (6 mm) drill bit. Use the dimple
in the foil as a guide. The center of the dimple will be
at 2
1
/
2
" (63.5 mm) from the cut end of the foil.
All Installations
■
Roughing up Top Foil for Trim Cap
Rough up the top
1
/
2
" (13 mm) of the top foil with
a file or sandpaper.
Most Installations
■
Deburr the Foil
After cutting foil, clean all shavings from inside the foil.
Failure to deburr or clean the inside of the foil may cause
it to seize to a connector when it is being installed.
Some Installations
■
Cutting and Drilling Bottom Foil
Consult the chart on page 20 - 21 to see if you need to
shorten the special bottom foil. If you do, use a hacksaw
to shorten the special bottom foil by 5" (127 mm). Make
sure you cut the end nearest the existing holes. Deburr
the foil after cutting.
2
1
/
2
"
63.5 mm
IMPORTANT
If you make any cuts in the foils be sure
to carefully clean all shavings from
inside the foils. Failure to deburr or
clean the inside of the foils may cause
them to seize to the connector during
installation.