2
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.
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
1. Make hydraulic connections. Use a pump
with a release valve or a 3-way valve and
one hose for single-acting cylinders (1). Use
a pump with a 4-way valve and two hoses
for double-acting cylinders (2).
IMPORTANT: Double-acting cylinders must
have both couplers connected.
Fully hand-tighten all couplers. Loose
coupler connections will block the flow of oil
between the pump and the cylinder.
2. Remove air from the cylinder as shown
below.
Single-acting cylinders: Position the cylinder
so that the plunger is pointed down and the
cylinder lower than the pump. Fully extend
and retract the cylinder 2 or 3 times.
Double-acting cylinders: Lay the cylinder on
its side and have the couplers facing up. Fully
extend and retract the cylinder 2 or 3 times.
NOTE: Collar threads are rated for the full
capacity of the cylinder when fully engaged in
attachments.
NOTE: The use of cylinder attachments or
extensions reduces the cylinder capacity by at
least 50%.
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