Harken 7413.10 MKIV Jib Reefing & Furling built after Feb. 2009 - Manual (Page 11)

MKIV unit 3 11
Preassembly Unit 3—Short Top Foil
If top foil is shorter than 248 mm (9 3 /
4
"), use one of the following techniques to ensure sufficient bearing
surface for the foil in the area of the halyard swivel.
89 mm (3
1
/ 2
")
76 mm (3")
64 mm (2
1
/ 2
")
51 mm (2")
38 mm (1
1
/ 2
")
248 mm (9 3 /
4
") No special treatment required.
248 mm (9
3
/ 4
")
244 – 181 mm (9 5 /
8
" – 7 1 /
8
") Do not use plastic bushing above
top connector.
244 – 181 mm (9
5
/ 8
"–7
1
/ 8
")
178 – 140 mm (7" – 5 1 /
2
") Do not use plastic bushing above top
connector. Shorten top of connector and, if necessary, shorten
trim cap.
178 – 140 mm (7" – 5
1
/ 2
")
137 – 102 mm (5 3 /
8
" – 4") Do not use plastic bushing above top
connector. Cut connector at cross formed by glue dispersion
channels. Use single foil screw in top foil only.
137 – 102 mm (5
3
/ 8
" – 4")
Under 38 mm (1 1 /
2
") Eliminate top foil and run foil higher in
drum assembly.
Under 38 mm (1
1
/ 2
")
Top foil
length from
worksheet
1. Initial
top foil
cut length
2. Cut through
middle hole in
top foil.*
3. Shorten
full -
length
adjoining
foil by
cutting
through
middle
hole.*
4. Shorten
connector
5. Shorten
trim cap
Resulting top
foil length Length
3 1 / 2 "
(89 mm)
6 9 / 16 "
(167 mm)
5"
(127 mm)
4 7 / 8 "
(124 mm)
No
3"
(76 mm)
6 1 / 16 "
(154 mm)
4 1 / 2 "
(114 mm)
4 7 / 8 "
(124 mm)
No
2 1 /
2
"
(64 mm)
6 9 /
16
"
(167 mm)
4"
(102 mm)
4 7 /
8
"
(124 mm)
No
2"
(51 mm)
5 1 / 16 "
(129 mm)
3 1 / 2 "
(89 mm)
4 3 / 8 "
(111 mm)
Yes
1 1 / 2 "
(38 mm)
4 9 / 16 "
(116 mm)
3"
(76 mm)
3 3 / 4 "
(95 mm)
Yes
89 S – 38 mm (3 1 /
2
" – 1 1 /
2
") Shorten top foil and adjoining full
length foil so two (2) screws are used to assemble joint instead
of four (4). Do not use plastic bushings above top connector.
*To allow for saw cut, position blade so upper half of middle hole is
preserved.
Cut-offs – Do not use
Cut-offs
Do not use
Cut-offs
Do not use
Cut-offs
Do not use
Cut-off
Do not use
UNIT 3