Unit 2e, 221 mm) no special treatment required. 8, 221 mm) 8 – Harken 7412.13 12V MKIV Electric Jib Reefing & Furling User Manual
Page 10
10
MKIV Unit 2E
Preassembly
Unit 2—Short Top Foil
If top foil is shorter than 8
11
/
16
" (221 mm), use one of the following special techniques to ensure sufficient
bearing surface for the foil in the area of the halyard swivel.
3" (76 mm)
2
1
/
2
" (64 mm)
2" (51 mm)
1
1
/
2
" (38 mm)
1" (25 mm)
8
11
/
16
" (221 mm) No special treatment required.
8
11
/
16
" (221 mm)
8
5
/
8
" – 6
3
/
8
" (219–162 mm) Do not use plastic bushing
above top connector.
8
5
/
8
"–6
3
/
8
" (219–162 mm)
6"–5
1
/
2
" (152–140 mm) Do not use plastic bushing
above top connector. Shorten top of connector and if
necessary shorten trim cap.
6"–5
1
/
2
" (152–140 mm)
5
1
/
4
"–3
5
/
8
" (133–92 mm) Do not use plastic bushing
above top connector. Cut connector right at cross formed
by glue dispersion channels. Use single foil screw in top
foil only.
5
1
/
4
"–3
5
/
8
" (133–92 mm)
Under 1" (25 mm) Eliminate top foil and run foil higher
in torque tube.
Under 1" (25 mm)
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"
(76 mm)
7
1
/
4
"
(184 mm)
5
1
/
8
"
(130 mm)
4
1
/
2
"
(114 mm)
No
2
1
/
2
"
(64 mm)
6
3
/
4
"
(172 mm)
4
5
/
8
"
(117 mm)
4
1
/
2
"
(114 mm)
No
2"
(51 mm)
6
1
/
4
"
(159 mm)
4
1
/
8
"
(105 mm)
4
1
/
2
"
(114 mm)
No
1
1
/
2
"
(38 mm)
5
3
/
4
"
(146 mm)
3
5
/
8
"
(92 mm)
3
3
/
4
"
(95 mm)
Yes
1"
(25 mm)
5
1
/
4
"
(133 mm)
3
1
/
8
"
(79 mm)
3
3
/
4
"
(95 mm)
Yes
3"–1" (76–25 mm) Shorten top foil and adjoining full
length foil so two screws are used to assemble joint
instead of four. 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 2E
UNIT 2E