June 2002
2/2.5 Carbon Furler
5
PREPARATION FOR ASSEMBLY
Foil Cut Length
•
Top Foil Cut Length
•
Short Top Foil?
•
Cutting Top Foil
dimensions
inches
mm
A
Center of PIN to bottom of terminal
_______ _______
B
Bottom of terminal to top of foil
4
102
C
Top foil
_______ _______
Foils below 8" (203mm) see next page
d
_____ x 72" (1828.8mm) foils
_______ _______
e
Top of feeder to center of clevis pin
52
3
/
4
1340
Total pin-to-pin headstay length
_______ _______
WoRKSHeeT: deTeRmine ToP FoiL LengTH
C
A
D
E
■
FoiL CUT LengTH
The Carbon 2.5 furler has an integral toggle. No additional toggle is required below the unit.
To check the foil length, lay foils alongside the stay before cutting top foil. Make sure
that turnbuckle is set to desired length.
■
ToP FoiL CUT LengTH
Instructions for worksheet below:
1 Fill in total pin-to-pin headstay length.
2 Fill in A length.
3 Adjust B length if necessary.
Note: There must be enough space between top of carbon foils and bottom of rod
terminal to allow for turnbuckle adjustment. As turnbuckle is adjusted, terminal is
pulled down towards top of rod. If no turnbuckle is used, there only needs to be
minimal space—
1
/
2
" (12mm)–between the carbon foil and rod terminal.
We have put 4" (100mm) as a starting point. This may need to be adjusted based
upon how turnbuckle was set when headstay was measured. If there is less than
4" (100mm) “take-up”, less space can be left and vice versa. The space between foil
trim cap and bottom of turnbuckle must be more than “take-up” on turnbuckle.
4 Add A, B, E and subtract from total pin-to-pin headstay length. SUM = _________
5 Choose the number from foil multiplier below closest to, but not greater than,
sum from step 4. Fill in D length.
6 X 72" = 432 6 X 1828.8mm = 10972.8
7 x 72" = 504 7 x 1828.8mm = 12801.6
8 x 72" = 576 8 x 1828.8mm = 14630.4
9 x 72" = 648 9 x 1828.8mm = 16459.2
10 x 72" = 720 10 x 1828.8mm = 18288.0
11 x 72" = 792 11 x 1828.8mm = 20116.8
5 Add A, B, D, E. Subtract from pin-to-pin length for C (top foil length).
iF yoU HAve SHoRT ToP FoiL
If top foil is less than 8" (203mm) do not use a recessed top connector. The top foil must
be at least 4" (101mm). If it is less, shorten the upper 72" (1.83m) foil to make the upper
foil 4" (101mm).
CUTTing ToP FoiL
Once you have checked the top foil length by laying foils alongside the rod, use a sharp
hacksaw to cut top foil. Tape foil and cut along tape. Sand bottom end of the foil so it
is square and to remove any carbon burrs. Lightly sand inside of foil where it will be
bonded with 220 grit to remove any grease or mold release agent.
