Harken HCI025110345BCC Integral Backstay Adjuster User Manual
Page 5

5
Operation
Decrease tension
1. Turn release knob counterclockwise to open. Release
speed depends on how far the knob is turned.
WARNING! Backstay cylinders can overload
jib halyard and jib luff components including
furlers. Be sure to check and/or ease jib
halyard before tensioning backstay.
Increase tension
1. Turn pressure release knob clockwise to close.
The resting position for the pressure release knob is
closed.
2. Move pump handle in and out until desired tension is
achieved.
Notice: It is impossible to over-tighten the knob or
damage the valve by hand.
The Harken Integral Hydraulic Cylinder is easy to use and offers unique, double-acting pump action to move oil twice as
fast as a single-acting pump. Follow these simple steps for cylinder operation.
Pressure Release Knob
Pressure Gauge