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Auto-release Clamcleat
SD002570 - $21.00
SD002570UG - $4.68*

*Click for info about cam upgrade/replacement...

This exciting new cleat will release a line when a set load is exceeded. It's perfect for a hold down for pivoting rudders and leeboards! The cleat flips up to release the rope when a set load is exceeded. The SD002570 is easily re-set or adjusted for different release loads, even out on the water.

After fitting the SD002570, (see fitting instructions below) start with the load adjustment cam set to Minimum. Increase the release load in small steps to avoid damage to equipment. Our tests show that release loads can be varied between 25kg & 240kg (50lb & 520lb). Note that smaller or worn ropes release at higher loads than larger or new ropes. Instructions are included with each SD002570.

Technical Information

sailboats, marine, dinghy, rope, holding cleats

sailboats, marine, dinghy, rope, holding cleats
sailboats, marine, dinghy, rope, holding cleats
sailboats, marine, dinghy, rope, holding cleats 
sailboats, marine, dinghy, rope, holding cleats
4-6mm
3/16 - 1/4"
Aluminium + Acetal
A = 68 B = 36. C = 24mm
A = 2 5/8" B = 1 13/32" C = 7/8"
M4
1/8"
4.2mm
No. 8
31gm
1.1oz

Fitting Instructions

Fits onto a flat or curved surface

auto, release, cleat, transom, tiller, rudder, downhaul, rope

Use sandpaper to achieve a perfect fit on a curved surface.

auto, release, cleat, transom, tiller, rudder, downhaul, rope

Mounting positions

auto, release, cleat, transom, tiller, rudder, downhaul, rope
Allow room for the cleat to operate
 auto, release, cleat, transom, tiller, rudder, downhaul, rope
auto, release, cleat, transom, tiller, rudder, downhaul, rope
can be mounted on any side of a tiller
auto, release, cleat, transom, tiller, rudder, downhaul, rope
When mounting in positions 2, 3 & 4 use an elastic band to hold the tail of the rope.
   auto, release, cleat, transom, tiller, rudder, downhaul, rope

Rope alignment

auto, release, cleat, transom, tiller, rudder, downhaul, rope
To aid rope alignment
use a fairlead

auto, release, cleat, transom, tiller, rudder, downhaul, rope
auto, release, cleat, transom, tiller, rudder, downhaul, rope

Setting the release load

auto, release, cleat, transom, tiller, rudder, downhaul, rope

1. Test Release load with "cam" at "minimum setting".
2. To increase release load use a screwdriver to rotate cam towards "maximum".

WARNING - To avoid damaging equipment, make small adjustments and test each increase. Tests show that release loads of 240kg (530lbs) are possible with the cam at "maximum" setting.

Smaller or worn ropes release at higher loads than larger or new ropes.

Upgrade/Replacement Kit

  • In January 2005, the SD002570 received a "Screw" and "Cam" upgrade to enhance performance in challenging applications.
    This kit has been made available for customers who purchased their cleats prior to January 2005, consists of 1x screw + 1x cam + instruction leaflet. It is also useful for anyone who has lost or damaged their original cam or screw.


SD002570UG