Enerpac LCA User Manual
Instruction Sheet
Link Clamp
Index:
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L2622 Rev A 10/04
Repair Parts Sheets for this product are available
from the Enerpac web site at www.enerpac.com, or
from your nearest Authorized Enerpac Service Center
or Enerpac Sales office.
1.0 IMPORTANT RECEIVING
INSTRUCTIONS
Visually inspect all components for shipping damage.
Shipping damage is not covered by warranty. If
shipping damage is found, notify carrier at once. The
carrier is responsible for all repair and replacement
costs resulting from damage in shipment.
SAFETY FIRST
2.0 SAFETY ISSUES
Read all instructions, warnings
and cautions carefully. Follow all
safety precautions to avoid
personal injury or property damage during system
operation. Enerpac cannot be responsible for damage
or injury resulting from unsafe product use, lack of
maintenance or incorrect product and/or system
operation. Contact Enerpac when in doubt as to the
safety precautions and operations. If you have never
been trained on high-pressure hydraulic safety,
consult your distribution or service center for a free
Enerpac Hydraulic safety course.
Failure to comply with the following cautions and
warnings could cause equipment damage and
personal injury.
A CAUTION is used to indicate correct operating or
maintenance procedures and practices to prevent
damage to, or destruction of equipment or other
property.
A WARNING indicates a potential danger that
requires correct procedures or practices to avoid
personal injury.
A DANGER is only used when your action or lack of
action may cause serious injury or even death.
WARNING: Wear proper personal
protective gear when operating hydraulic
equipment.
WARNING: Stay clear of loads
supported by hydraulics. A cylinder,
when used as a load lifting device, should
never be used as a load holding device.
After the load has been raised or lowered, it must
always be blocked mechanically.
DANGER: To avoid personal injury keep
hands and feet away from cylinder and
workpiece during operation.
WARNING: Do not exceed equipment
ratings. Never attempt to lift a load
weighing more than the capacity of the
cylinder. Overloading causes equipment failure and
possible personal injury. The cylinders are designed
for a max. pressure of 350 bar [5,000 psi]. Do not
connect a jack or cylinder to a pump with a higher
pressure rating.
DANGER: Never set the relief valve to a
higher pressure than the maximum rated
pressure of the pump. Higher settings may
result in equipment damage and/or personal injury.
Do not remove relief valve.
WARNING: The system operating
pressure must not exceed the pressure
rating of the lowest rated component in
the system. Install pressure gauges in the
system to monitor operating pressure. It is your
window to what is happening in the system.
CAUTION: Avoid damaging hydraulic
hose. Avoid sharp bends and kinks when
routing hydraulic hoses. Using a bent or
kinked hose will cause severe back-pressure. Sharp
bends and kinks will internally damage the hose
leading to premature hose failure.
Do not drop heavy objects on hose. A
sharp impact may cause internal damage
to hose wire strands. Applying pressure to
a damaged hose may cause it to rupture.
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2
IMPORTANT: Do not lift hydraulic
equipment by the hoses or swivel
couplers. Use the carrying handle or other
means of safe transport.
CAUTION: Keep hydraulic equipment
away from flames and heat. Excessive
heat will soften packings and seals,
resulting in fluid leaks. Heat also weakens
hose materials and packings. For optimum
performance do not expose equipment to
temperatures of 65 °C [150 °F] or higher. Protect
hoses and cylinders from weld spatter.
DANGER: Do not handle pressurized
hoses. Escaping oil under pressure can
penetrate the skin, causing serious injury.
If oil is injected under the skin, see a doctor
immediately.
WARNING: Only use hydraulic cylinders in
a coupled system. Never use a cylinder
with unconnected couplers. If the cylinder
becomes extremely overloaded, components
can fail catastrophically causing severe personal injury.
IMPORTANT: Hydraulic equipment must
only be serviced by a qualified hydraulic
technician. For repair service, contact the
Authorized ENERPAC Service Center in
your area. To protect your warranty, use only
ENERPAC oil.
WARNING: Immediately replace worn or
damaged parts by genuine ENERPAC parts.
Standard grade parts will break causing
personal injury and property damage. ENERPAC parts
are designed to fit properly and withstand high loads.
3.0 INSTALLATION
The Enerpac link clamp can be installed with the
clamp arm in one of three different locations. The
clamps can be mounted to the fixture using either the
threaded body or the supplied mounting bolts. Oil
can be supplied to the clamp using either the
threaded hydraulic ports on the flange or via the Oring ports on the underside of the flange. The
sections that follow provide detailed mounting
instructions and should be reviewed before
attempting to install the clamps on the fixture.
3.1 Clamp Arm Location
The arm and linkage can be positioned in any of three
different positions as shown in Figure 1 below. The
anchor post threads into the top flange of the cylinder
in any of the three threaded holes. Thread the anchor
post into the flange until it bottoms out, then turn the
post back up to 1/2 turn in order to line up the pivot
pin hole perpendicular to the desired clamp direction
(Figure 2). Make sure that the hole in the plunger is
lined up parallel to the hole in the anchor post.
Figure 1
Figure 2
Line up the two (2) links with the hole in the anchor
post. Insert one (1) of the long pivot pins through the
links and the anchor post. Secure the pivot pin in
place using two (2) of the supplied E-clips (Figure 3).
Figure 3
Center
Hole in anchor post
must line up
perpendicular to
direction of clamp
arm.
Anchor post
Pivot pin
Links
Left Right
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