Enerpac LH-Series - Manual

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.
W ARNING: 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.
WARNING: USE ONLY RIGID PIECES TO HOLD LOADS.
Carefully select steel or wood blocks that are capable of
supporting the load. Never use a hydraulic cylinder as a
shim or spacer in any lifting or pressing application.
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 700 bar [10,000 psi]. Do
not connect a jack or cylinder to a pump with a higher pressure
rating.
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.
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.
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.
WARNING: BE SURE SETUP IS STABLE BEFORE
LIFTING LOAD. Cylinders should be placed on a
flat surface that can support the load. Where applicable,
use a cylinder base for added stability. Do not weld or
otherwise modify the cylinder to attach a base or other support.
Avoid situations where loads are not directly centered on the
cylinder plunger. Off-center loads produce considerable
strain on cylinders and plungers. In addition, the load may
slip or fall, causing potentially dangerous results.
Distribute the load evenly across the entire saddle
surface. Always use a saddle to protect the plunger.
I MPORTANT: 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.
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Hydraulic Technology Worldwide
Instruction Sheet
Hydraulic Load Cells
Compression & Tension ( 2-300 Ton Models)
L876 Rev. C 03/07