Harken 1027 MKIII Hydraulic Jib Reefing & Furling - Manual (Page 8)

8 Hydraulic 3/3.25 April 2000
■ FOIL CUT LENGTH - UNIT 3 / 3.25
Foil cut length is based on pin-to-pin length as measured
from center of upper pin (attaches the stay to the mast) to
center of lower pin (attaches the furling unit to the boat).
Measurement includes the masthead toggle. The hydraulic
furler has a lower integral toggle. No additional toggle is
required below the unit.
There must be more than 2
1 /
2
" (63.5 mm) of adjustment
above the trim cap when the adjuster is set to the half way
point. The total adjuster stroke is 5" (127 mm). (See inset 1)
To check foil length, lay foils alongside stay before cutting
top foil. Set stay adjuster to the half way point.
■ TOP FOIL CUT LENGTH
Instructions For Worksheet Below:
1 Fill in total pin-to-pin length.
2 Fill in A length. Fill in G from numbers below.
3 /
4
" (19.1 mm) Clevis Pin = 31" (787 mm)
7 /
8
" (22.2 mm) Clevis Pin = 31 1 /
4
" (794 mm)
1" (25.4 mm) Clevis Pin = 31 3 /
4
" (806 mm)
3 Add A, B, E, F, G and subtract from total pin-to-pin length.
SUM = _________
4 Choose the number from foil multiplier below closest to,
but not greater than, sum from step 3. Fill in D length.
*7 x 84 = 588 **7 x 2133.6 = 14935.2
8 x 84 = 672 8 x 2133.6 = 17068.8
9 x 84 = 756 9 x 2133.6 = 19202.4
10 x 84 = 840 10 x 2133.6 = 21336.0
11 x 84 = 924 11 x 2133.6 = 23469.6
12 x 84 = 1008 12 x 2133.6 = 25603.2
5 Add A, B, D, E, F, G.
Subtract from pin-to-pin length for C (top foil length).
†With Swage Eye: Bottom of the Terminal is the point where foils jam
on the eye. The top foil will ride on shoulder when in use.
BEFORE CUTTING SEE NEXT PAGE.
WORKSHEET: DETERMINE TOP FOIL LENGTH
DIMENSIONS INCHES MM
A Center of PIN to Bottom of Terminal _____ _____
B †Bottom of Terminal to Top of Foil 3.5 89
C Top Foil _____ _____
Foils below 19" (483 mm) see next page
D __?__ 84" (2133.6 mm) Foils *_____ **_____
(Quantity)
E Feeder Gap 3 76
F Bottom Foil 24 610
G Clevis Pin to Foil _____ _____
Total Pin-to-Pin Length _____ _____
Preparation Foil Cut Length/Top Foil Cut Length