Harken 7413.15 MKIV Hydraulic Jib Reefing & Furling - Manual (Page 9)

MKIV Hydraulic Unit 3 9
Preassembly Toggle Deductions/Stay Into Foil Options
Use dimensions of Harken toggles or cylinders shown below to build stay to correct length.
Toggle Assembly
Turnbuckles should be 1/2 to 2/3rds open to allow shortening for new wire stretch and for fine-tuning mast rake and
to help connect the stay.
Hydraulic Cylinder
Length for hydraulic cylinder can be determined at 1/2 to 2/3rds open to allow to allow shortening for new wire
stretch and for fine-tuning mast rake and to help connect the stay. Stroke length for unit 3 cylinder is 4" (100 mm).
1. Swage stud at end of wire.
2. Open end of wire and install Norseman or Sta-Lok
® stud after foil is assembled.
3. Rod adapter nosepiece for Harken rod adapter stud: Threaded nosepiece must
have a positive lock of as well as adhesive. Use Harken stud with cotter pins.
See page 22.
Options for Snaking Stay into Foils
Toggle
Part No.
Clevis Pin
Ø
Pin-to-Pin
Length
7413.25 3/4 3 / 4 " (19.1 mm) 3 1 / 4 " (83 mm)
7413.25 7/8 7 / 8 " (22.2 mm) 3 7 / 8 " (98 mm)
Hydraulic Cylinder
Part No.
Clevis Pin
Ø
Max. Pin-to-Pin
Length
Min. Pin-to-Pin
Length
7413.26 3/4 3 / 4 " (19.1 mm) 20" (50 mm) 16" (400 mm)
7413.26 7/8 7 / 8 " (22.2 mm) 20 1 / 2 " (525 mm) 16 1 / 2 " (420 mm)
WARNING! Using a threaded nosepiece with only adhesive at the
upper rod eye terminal may result in headstay failure. Make
sure there is a mechanical lock.