Harken MKIV Unit 3, Руководство по установке, Страница: 39 / 40

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 5 mm ( 3 /
16
") luff tape.
Luff tape length
Cut off top of luff tape so it is 450 to 600 mm (18 to 24") 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) 48 mm (1 7 /
8
")
(B) 21 mm ( 13 /
16
")
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 assembly 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 assembly I Max* I Min* J Max J Min K L
in mm in mm in mm in mm in mm in mm
7413.25 ¾ std 4
5
/
8
118 — — 2 51 — — 8
1
/
4
209 7
11
/
16
195
7413.25 7/8 std 5
3
/
16
132 — — 2
9
/
16
65 — — 8
1
/
4
209 7
11
/
16
195
7413.26 ¾ cylinder 21
1
/4 540 17
1
/
4
438 11
7
/
16
291 7
7
/
16
189 8
1
/
4
209 7
11
/
16
195
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 7
11
/
16
195
*Height of threaded hydraulic ports
Toggle assembly 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
J
See page 39
for all toggle
dimensions
I
L