INSTRUCTIONS

Hole layout, location relative to the I-point and the fitting procedure for the Selden Triple Combi forestay boxes 505-011-01 and 505-018-01/-03.

DocumentSelden Forestay Box Type Triple Combi Instructions
FormatPDF · 1 page · 0.5 MB
LanguageEnglish
Selden Forestay Box Type Triple Combi — Instructions

Forestay Box Type Triple Combi

Discontinued model – documents and spare parts as printed.

Part No. Forestay Hole layout (centre distances, not to scale) Fasteners
505-011-01 Ø 4/5 mm Ø 7 – 21 mm – Ø 22 – 131 mm – Ø 22 – 21 mm – Ø 7 2 pop rivets LD870 (Ø 6.4 x 17.8), included
505-018-01 / 505-018-03 Ø7 mm / Ø6 mm Ø 9 mm – 33 mm – Ø 40 mm – 180 mm – Ø 40 mm – 29.6 mm – Ø 9 mm 2 screws MRT 8 x 25 (round, Torx head), included
  • Location: the upper large hole sits above the I-point (ISP): 12 mm for 505-011-01 (Ø 22mm hole), 15 mm for 505-018 (Ø 40 mm hole).
  • Tools: pencil, ruler, drill, Ø 5.0 mm drill bit, hole saw (Ø 22 mm or Ø 40 mm), jigsaw, half round file; plus Ø 7.0 mm bit, pop rivet gun, Ø 2.5 mm mandrel and hammer (505-011) or Ø 9.0 mm bit and Torx screwdriver (505-018).

Fitting Procedure

  1. On the front line of the mast, mark and pre-drill all 4 holes with the Ø 5.0 mm bit.
  2. Open the top and bottom holes to Ø 7.0 mm (505-011) or Ø 9.0 mm (505-018).
  3. Open the two intermediate holes with the hole saw (Ø 22mm or Ø 40 mm).
  4. Draw straight lines between the large holes, one each side, touching their edges; check the distance equals the fitting width.
  5. Saw along the inner edges of the lines so the slot is as wide as the fitting.
  6. File the slot edges smooth, without notches.
  7. Check the fit: insert the box, pull it against the front of the mast until it rests on the inner mast surface above and below the slot; it must rest on the mast wall at its lower end. File if needed.
  8. Remove the box, feed the genoa and spinnaker halyards (or messengers) and reinsert it.
  9. 505-011: check it rests on the inner surface, pull the two pop rivets and knock out remaining mandrels. 505-018: lubricate the screws and tighten carefully without deforming the mast wall.

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