48 mm) (b), See page 39 for all toggle dimensions – Harken 7413.15 MKIV Hydraulic Jib Reefing & Furling User Manual
Page 39
MKIV Hydraulic Unit 3
39
Preassembly
Dimensions/Sailmaker's Instructions
Luff Length
Note offsets above and below sail.
A shorter luff may be required if a halyard restrainer is used or an
additional toggle assembly is used to raise unit.
If luff of sail is not long enough to put halyard swivel near top of
headstay foil, a pendant must be added. See page 28.
Tack Setback
Note setback for tack shackle and cut sail accordingly.
Luff Tape Size
Unit 3H requires #6 (
6
/
32
" or 5 mm) luff tape.
Luff Tape Length
Cut off top of luff tape so it is 18 to 24" (450 to 600 mm) below head
of sail. This allows head to lag behind rest of sail to help flatten sail.
It will also help head to roll more smoothly.
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) 1
7
/
8
" (48 mm)
(B)
13
/
16
" (21 mm)
Sun Cover
Sun covers may be installed on either side of sail. Be
sure to match other sails in the customer's inventory.
A
B
Toggle/Pin
Ø
A
B
C
D
E Max
E Min
in
mm
in
mm
in
mm
in
mm
in
mm
in
mm
7413.25 ¾ Std
7
5
/
16
186
11
5
/
8
296
18
457
3
7
/
8
98
47
1194
—
—
7413.25 7/8 Std
7
5
/
16
186
11
5
/
8
296
18
457
3
7
/
8
98
47
9
/
16
1209
—
—
7413.26 ¾ Cylinder
7
5
/
16
186
11
5
/
8
296
18
457
3
7
/
8
98
63
5
/
8
1616
59
5
/
8
1515
7413.26 7/8 Cylinder
7
5
/
16
186
11
5
/
8
296
18
457
3
7
/
8
98
64
1
/
4
1632
60
1
/
4
1530
Toggle/Pin
Ø
I Max*
I Min*
J Max
J Min
K
in
mm
in
mm
in
mm
in
mm
in
mm
7413.25 ¾ Std
4
5
/
8
118
—
—
2
51
—
—
8
1
/
4
209
7413.25 7/8 Std
5
3
/
16
132
—
—
2
9
/
16
65
—
—
8
1
/
4
209
7413.26 ¾ Cylinder
21
1
/4
540
17
1
/
4
438
11
7
/
16
291
7
7
/
16
189
8
1
/
4
209
7413.26 7/8 Cylinder
21
7
/
8
556
17
7
/
8
455
12
1
/
16
306
8
1
/
16
205
8
1
/
4
209
*Height of threaded hydraulic ports
Toggle/Pin
Ø
F Max
F Min
G Max
G Min
H Max
H Min
in
mm
in
mm
in
mm
in
mm
in
mm
in
mm
7413.25 ¾ Std
32
5
/
16
821
—
—
18
446
—
—
16
1
/
8
409
—
—
7413.25 7/8 Std
32
7
/
8
836
—
—
18
9
/
16
472
—
—
16
11
/
16
424
—
—
7413.26 ¾ Cylinder
49
1245
45
1142
34
5
/
8
879
30
5
/
8
778
32
3
/
4
832
28
3
/
4
730
7413.26 7/8 Cylinder
49
5
/
8
1260
45
5
/
8
1159
35
1
/
4
895
31
1
/
4
794
33
3
/
8
848
29
3
/
8
747
K
G
I
H
D
C
B
A
J
F
E
I
J
See page 39
for all toggle
dimensions