Integral Hydraulic Cylinder
Installation and User Manual
Please read these instructions carefully before using or servicing the equipment.
This manual may be modified without notice. See: www.harken.com/manuals for updated versions.
PLEASE SAVE THESE INSTRUCTIONS
Introduction
This user manual contains important information for the
correct use of the Integral Hydraulic Cylinder. Read all
instructions carefully before use. If you do not understand
these instructions, contact Harken. Do not use the Integral
Hydraulic Cylinder unless you have a sufficient level of
sailing training and experience.
CAUTION! Strictly follow all instructions to
avoid an accident, damage to your vessel,
personal injury or death. See harken.com/
manuals for additional safety information.
Description
The Harken Integral Hydraulic Cylinder is designed for use
on sailboats and is sized according to boat and rigging.
When ordering, always have your choice confirmed by
a Harken representative or other sailing professional. The
limited warranty does not cover use of product outside
of normal sailboat applications.
Parts ordered separately
Standard eye/jaw toggle
Tools Required
Hex driver, 3 mm
®
Loctite
, Blue 242
WARNING! Cylinders are capable of exerting
very high loads and can break associated
components. Inspect all standing backstay
and forestay rigging components to ensure
they are in good condition. Failure to inspect
components may result in sudden breakage
at high loads.
2
Installation
Installation
Review all instructions carefully prior to installation of your
new Integral Hydraulic Cylinder.
1. Carefully unpack the cylinder and check for visible
defects. If any signs of damage are present, contact
your dealer at point of purchase or Harken.
2. Extend cylinder to prepare for installation.
Turn release knob counterclockwise completely.
Attach the bottom (end) clevis to the deck, and attach
the upper (rod) clevis to the main halyard. Pull rod
clevis as necessary to fully extend the cylinder.
When cylinder is extended, detach from deck
and main halyard.
3. Check installation site for clearance.
Attach a standard eye/jaw toggle to the cylinder’s
bottom clevis before securing to the chainplate.
• Install two pins in different orientation to accommodate
stay movement so the aluminum won’t fatigue during use.
• Standard toggles fit all Harken cylinders.
NOTICE: Be sure to include toggle length in cylinder
length for deduction from stay.
4. Mount cylinder rod end up.
When mounting, orient pump handle to your preference.
3