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INSTRUCTIONS

Layout rules, hole size, fasteners, bending to the deck camber, loads by deflection angle and lengths for the Spinlock T38 deck organisers, T38/2 to T38/6, Y versions and the alloy-sheave upgrade.

DocumentSpinlock T38 Deck Organiser Instructions
FormatPDF · 2 pages · 1.2 MB
LanguageEnglish
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InstructionsPDF · 2 p.Drill guides (1:2)PDF · 10 p.
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Spinlock T38 Deck Organiser — Instructions

Installation

  • Plan the deck layout before marking out holes.
  • Keep the vertical rope-entry angle under 10°.
  • Install the organiser on an imaginary line bisecting the angle of the rope lead.
  • Make sure the deck has the required strength.
  • Drill holes ø6.5mm or 1/4".
  • Seal the deck joint with a silicone rubber sealant.
  • Insert the flush-fitting countersunk fasteners before fixing to the deck; for maximum safety use A4/70 or A4/80 high-tensile fasteners, M6 (1/4") CSK head, DIN7991.
  • T38 organisers can be bent to the curvature of the deck: fasten one end and work across one hole at a time, marking the next location before drilling.

Fasteners and Use

  • Each organiser needs a fastener through each sheave and one at each end: a 3-sheave T38/3 needs 5 fasteners, or 4 for the asymmetric T38/3Y.
  • Designed for use between winch and mast only.
  • Double stacked: always use the lower row of sheaves for the most highly loaded lines.
  • Foam sandwich decks: consult your boatbuilder or installer.

Models and Loads

Model Length (mm) M6 CSK fasteners Weight composite Weight alloy (A) Max load per unit
T38/2 152 4 115g 154g 600kg View part →
T38/2Y 117 3 94g 133g 600kg View part →
T38/3 194 5 154g 212g 900kg View part →
T38/3Y 160 4 134g 191g 900kg View part →
T38/4 237 6 190g 267g 1200kg View part →
T38/4Y 202 5 170g 247g 1200kg View part →
T38/5 281 7 227g 323g 1500kg View part →
T38/5Y 245 6 207g 303g 1500kg View part →
T38/6 324 8 270g 379g 1800kg View part →
T38/6Y 288 7 243g 359g 1800kg View part →

All T38: Ø38 sheave on 43 mm centres; 38 mm wide, 26 mm high; line size 6-12mm; max load 600kg per sheave. Alloy-sheave versions carry an A suffix (e.g. T38/3A).

Part code Upgrade
T38-A Alloy sheave, available as an upgrade for T38 organisers View part →

Max Rope Tension by Deflection Angle

Rope deflection angle ‘A’ Max rope tension (kg)
10° 3440
15° 2300
30° 1160
45° 780
60° 600
90° 420
  • ‘A’ is the angle the rope is deflected by the sheave, measured for a straight or a bisected rope entry.
  • The same table is printed on every T38 drill guide.

Use and Maintenance

  • The sheaves are moulded in a low-friction composite; the stainless-steel axle works with the countersunk fasteners for a high-strength, low-weight build.
  • Flush regularly with fresh water; when dry, apply a silicone spray or Spinlock grease.
  • Do not use mineral oil or solvent-based lubricants such as "WD40": the wrong lubricant degrades the bearing properties.
  • Do not let a loaded halyard touch the metal body.
  • Tensioned line must bear only on a sheave.

Drill Guides

  • One page per model, T38/2 to T38/6Y, drawn at 1:2 on A4 – not 1:1.
  • Spinlock's warning: if you use a guide as a drill template, set the printer for the drawing scale and always check the dimensions before drilling.

Safety

  • Check it is correctly specified for your application and line size, and correctly installed before using it under load.
  • Never use it if damaged, or with damaged line. Never use cleaning or lubricating solvents: they degrade the product.

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