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Harken’s integral hydraulic backstay adjuster provides the power to optimize sail shape quickly for racers and adjust mast tension for smoother furling for cruisers. The cylinder features a built-in, single-acting pump. Every unit includes a hardcoat-anodized aluminum cylinder and pump, valve, and stainless pump handle.
Handle Attachment: The stainless pump handle offers two attachment options. Option 1 uses a roll pin that, when installed, locks the handle permanently. Option 2 allows the roll pin to be left off, enabling the handle to be inserted when needed but stored separately.
Clevis Pins: Cylinders include a clevis pin on both ends. A fiberglass position indicator attached to the top clevis pin slides down the cylinder as it is retracted for repeatable tension settings.
Eye-Jaw Toggles: Standard eye-jaw toggles fit all Harken cylinders and are recommended on all installations.
Pressure-Release Knob: The pressure-release knob turns clockwise to close and pump, and counterclockwise to release. When closing the pump, the knob cannot be over-tightened by hand, preventing damage to the valve. Release speed depends on how far open the knob is turned. Pressure relief is factory set to prevent crew from over-tensioning the backstay.
Size Range: Harken integral backstay adjusters come in four sizes to fit boats 9 - 18 m (30 - 60') with stay diameters of 5 - 10 mm (7/32 - 3/8").
Specifications
• Brand: Harken
• Reference: HCI006BCC
• Weight: 3.79 kg
• Maximum wire Ø: 5.5 mm
• - Size: -6
• Stroke: 360 mm
• Pin center length (closed): 762 mm
• Gap/pin Ø: 11.1 mm
• Pull force: 1710 kg
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