Adhesive alert – Harken 7411.11 1/2 MKIV Jib Reefing & Furling User Manual
Page 6
1. Stud/eye turnbuckle components are not included and
must be purchased separately. See page 8.
2. Rod rigging requires Harken rod adapter stud.
3. Order Harken Lead Blocks and one additional
7403 if necessary. Fits 1" (25 mm) stanchions.
Preassembly
Rigging Parts Check/Tools
Tools You Will Need
MKIV Furlers are shipped with 3M 5200
adhesive. Use adhesives on dry connectors
and foils using the special injection system
described in the assembly section. Parts
may immediately be exposed to rain. Cure
is best at 70F (22C) with 50% humidity. Do
not apply at temperatures below 40F (5C)
and above 100F (38C).
Although adhesive has not cured it will
remain in place on foil joints whether
they are left on the ground or raised up
on boat. Foils can be raised immediately
after assembly and sails fitted.
Note: A small amount of adhesive may
bulge out of injection ports. If possible
let system sit for a couple days before
sailing. If adhesive gets on sails remove
using acetone. For faster-curing adhesive,
purchase 4200 Fast Cure.
Note: Damaged foils can be repaired.
Use a hand-held propane torch to heat
joints until foils can be pulled apart.
Adhesive Alert
Unit 1, 2
7404 Lead Block Kit
(Sold Separately)
1. Long tape measure
6. Side cutters
11. Center punch
16. Hole saw
2. Short tape measure
7. Rat-tail file
12. Rigging or black tape
17. Deck sealant
3. Power drill
8. Hex Keys (provided)
13. Scissors
18. Box end wrench
4. Drill bits (see chart)
9. Slotted/phillips screwdrivers
14. Metal straight edge
19. 6 mm bolts, nuts and washers
5. Hacksaw
10. Needle-nose pliers
15. Hammer
10
13
12
11
8
7
6
5
3
2
1
14
9
ROD RIGGING
Harken Rod Adapter
Stud Required
(Sold Separately)
Unit
Part No.
Thread Ø
1
7422 -8
1
/
2
" - 20RH
7423 -10
1
/
2
" - 20RH
2
7424 -12
5
/
8
" - 18RH
7425 -17
5
/
8
" - 18RH
3
7426 -22
3
/
4
" - 16RH
7427 -30
7
/
8
" - 14RH
Rod Adapter Stud
349, 2652
131, 047
Unit
Turning
Thru-Deck
1
349
131
2
2652
047
3
2600/137/071
HC7981
Recommended Furling
Compartment Lead Blocks
Unit
Deck
Flange Ø
Hole
Saw Size
1
3.7"
(94 mm)
3 ¾"
(95 mm)
2
4.2"
(106.5 mm)
4 ¼"
(110 mm)
3
5.45"
(138.5 mm)
5 ½"
(140 mm)
16
Unit
Wrench Size
for Length Adjuster
1
7
/
8
"
(22 mm)
2
1"
(25 mm)
3
1.25"
(32 mm)
18
Use 6 mm bolts and washers to
mount deck flange. To figure bolt
length, add
3
/
8
" (10 mm) to deck
thickness. Minimum thread
engagement must be 9mm.
19
17
4
Unit
Drill Ø
1
1
/
8
"
(3 mm)
,
1
/
4
"
(6.25 mm)
2
5
/
32
"
(4 mm)
,
1
/
4
"
(6.25 mm)
3 (
3
/
4
,
7
/
8
)
5
/
32
"
(4 mm)
,
1
/
4
"
(6.25 mm)
15
6
MKIV Underdeck Unit 1, 2, 3