Nacra 500 MK2, Assembly Manual

Page: 25 / 112

25.
2.3.
Diamond tension
Tools needed:
- Wrench 17 mm
- wire tension gauge
1.
Put tension on the diamond wires by tensioning the
diamond adjuster bolt with a wrench size 17mm. Use the
“loose” tension, or an equivalent gauge to measure the
tension on the diamond wires.
Use the trimsheet for your boat to determine your
diamond tension settings.
2.
After putting tension on the mast check if the mast is
straight. Take a look along the sail groove from mast base
to mast top.
If the mast is bent to
starboard :
• Release the diamond tension
• Detach the
port
diamond wire at the tang and shorten
the wire with 1 full twist clockwise.
• Attach the
port
diamond wire at the tang and put tension
on the diamond adjuster bolt again. Redo this process if
necessary
If the mast is bent to
port :
• Release the diamond tension
• Detach the
starboard
diamond wire at the tang and
shorten the wire with 1 full twist clockwise.
• Attach the
starboard
diamond wire at the tang and put
tension on the diamond adjuster bolt again. Redo this
process if necessary
Overdoing the minimum or maximum
diamond wire tension can cause severe damage to
the mast while sailing.
3. Tape the rings of the diamond tang when done.