DESCRIPTION

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 with two attachment options: 1) a roll pin, that when installed, locks the handle permanently, 2) the roll pin can be left off and the handle may be inserted when needed, but stored separately. Cylinders include a clevis pin on both ends. A fiberglass position indicator attached to the top clevis pin slides down the cylinder as it’s retracted for repeatable tension settings. Standard eye-jaw toggles fit all Harken cylinders and are recommended on all installations.

The pressure-release knob turns clockwise to close and pump, 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.

Our Part # HARHCI006BCC | Mfr. Part # HCI006BCC

FEATURES

  • Size -6 single acting backstay adjuster.
  • Integral design for sailboats.
  • Pin diameter: 7/16 inch (11.1 mm).
  • Bore diameter: 1 inch (25 mm).
  • Provides precise backstay tension.

TECHNICAL INFORMATION

DescriptionImperialMetric
Weight8.36 lb3.79 kg
Maximum wire7/32 in5.5 mm
- Size-6-6
Stroke14 3/16 in36.0 cm
Pin center length (closed)30.0 in76.2 cm
Gap/pin1/2 in11.0 mm
Pull force3770.0 lb1710.0 kg

KNOWLEDGE BASE

Harken Hydraulic Integral Backstay Adjuster — User ManualSpecs, installation and maintenance for the Harken Hydraulic Integral Backstay Adjuster, by Harken part number.View Manual →