Harken 7311.10 Cruising Jib Reefing & Furling User Manual
Page 7
Preassembly
Sailmaker's Instructions
Luff Length
Note offsets above and below sail.
A shorter luff may be required if a halyard restrainer is necessary
(page 23) or a toggle or long toggle assembly is used to raise drum.
If luff of sail is not long enough to put halyard swivel near top of head-
stay foil, make sure a pendant must be added. (See page 22).
Tack Setback
Note setback for tack shackle and cut the sail accordingly.
Luff Tape Size
Both units require #6 (
6
/
32
" or 5 mm) luff tape.
Luff Tape Length
Note feeder height and extend bottom of luff tape downward so it is
below feeder. This will prevent luff tape from catching in feeder as sail
is lowered.
Tack and Head Shackles
Make sure tack and head shackles fit
sail rings. Minimum inside dimensions
of standard head and tack shackles are:
A
B
C
B
A
H
E
F
J
D
Note: If a long link plate is used, add the following dimensions to feeder,
shackle and drum height (based on whether plate is used full-length or
shortened to one of five hole positions). Do not add to halyard swivel or
top terminal dimensions.
Unit 1
1/2" (12.7 mm) Clevis Pin
Add 13
1
/
2
" to 6
5
/
8
"
(343 mm to 168 mm)
5/8" (15.9 mm) Clevis Pin
Add 11
1
/
4
" to 4
3
/
8
" (286 mm to 111 mm)
Unit 2
5/8" (15.9 mm) Clevis Pin
Add 16
1
/
8
" to 8
1
/
4
"
(410 mm to 210 mm)
3/4" (19.1 mm) Clevis Pin
Add 13
9
/
16
" to 5
11
/
16
" (344 mm to 144 mm)
Unit
A
B
C Max
D
E
F
G
H
I
J
Toggle Used
1
3
5
/
8
"
92 mm
6"
152 mm
12"
305 mm
1
3
/
8
"
35 mm
Min 33
1
/
2
" (851 mm)
Max 40
7
/
16
" (1027 mm)
Min 9
1
/
2
" (241 mm)
Max 11
7
/
8
" (302 mm)
Min 8
1
/
2
"( 216 mm)
Max 10
13
/
16
" (275 mm)
6
5
/
8
"
167 mm
3
1
/
16
"
78 mm
Min 2
7
/
8
" (71 mm)*
Max 5
1
/
16
" (129 mm)**
*1
/
2
" (12.7 mm)
**
5
/
8
" (15.9 mm)
2
4
1
/
2
"
114 mm
8"
203 mm
16"
406 mm
1
11
/
16
"
42 mm
Min 42
7
/
16
"(1078 mm)
Max 50
3
/
4
"(1289 mm)
Min 11
3
/
4
" (298 mm)
Max 14
7
/
8
" (378 mm)
Min 10
3
/
8
" (264 mm)
Max 13
1
/
2
" (343 mm)
8
3
/
16
"
208 mm
3
13
/
16
"
97 mm
Min 3
3
/
8
" (86 mm)*
Max 6
1
/
2
" (165 mm)**
*5
/
8
" (15.9 mm)
**
3
/
4
" (19.1 mm)
Unit
A
B
1
1
1
/
16
" (27 mm)
1
/
2
" (13 mm)
2
1
3
/
4
" (44 mm)
11
/
16
" (17 mm)
Suncover
Suncovers may be installed on either side of sail. Be
sure to match other sails in the customer's inventory.
11/01/10
Unit 1, 2 Cruising
7
G
I