Enerpac TR Serie Manual De Instrucciones página 2

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 fl at
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.
IMPORTANT: Hydraulic equipment must only be serviced
by a qualifi ed 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 fi t properly and withstand high
loads.
3.0 PRODUCT DESCRIPTION
3.1 Cylinder Styles
Foot Mount (TRFM Models - NFPA style MS2)
The foot or "lug" mounted cylinder allows easy mounting with
only four bolts. It provides a fairly rigid mount and can tolerate
a slight amount of misalignment when the cylinder is at full
stroke.
Flange Mount (TRFL Models - NFPA style ME5)
The end cap fl ange mount is one of the strongest, most rigid
methods of mounting a cylinder. This type of mounting allows
the majority of the cylinder length to be buried within a machine,
if desired.
Clevis Mount (TRCM Models - NFPA style MP1)
These cylinders are designed to pivot during operation. In addition
to the pivot pin on the base end, all clevis mount cylinders require
a rod eye or clevis to allow pivoting on the opposite end.
3.2 Cylinder Ports
• Cylinders with 1-1/2" to 2-1/2" bore sizes have SAE-10 ports.
• Cylinders with 3-1/4" to 4" bore sizes have SAE-12 ports.
3.3 Maximum Rated Pressure
The maximum rated pressure for most Enerpac TRCM, TRFM
and TRFL cylinder models is 5000 PSI [344 bar]. However, for the
following models, the maximum rated pressure is lower:
• Model TRCM-1510 is rated at 4500 PSI [310 bar].
• Model TRCM-1512 is rated at 4000 PSI [275 bar].
Note: Maximum rated pressure for all cylinder models is subject
to change due to custom engineering, special orders and other
variables. For this reason, always refer to the "PSI rating"
stamped on the cylinder.
4.0 INSTALLATION
4.1 General Guidelines
Cleanliness - Perhaps the most important consideration when
installing the cylinder. When shipped from Enerpac, the ports are
securely plugged with plastic plugs. These plugs should not be
removed until installing hoses or piping.
Verify that all hoses, piping and fi ttings are thoroughly clean
before making connections. Ensure that all threading and fl aring
burrs or chips are removed One chip can cause premature failure
of the cylinder or other hydraulic system components.
Alignment - Ensure proper rod alignment between the cylinder
and its mating component on your machine. As a precaution,
check rod alignment with the cylinder in both the extended and
retracted positions. Improper alignment will result in excessive
cylinder wear.
Environment - Cylinders operating in areas where there is weld
spatter, fast drying chemicals, paint, excessive heat or other
hazardous conditions should have covers or shields installed to
prevent damage to the rod and rod seals.
4.2 Mounting Recommendations
Foot Mounted Cylinders - The rod end retainer plate extends
below the mounting surface of the cylinder. This extension must
be fi tted into a milled keyway in your mounting pad. The use of
high strength alloy steel mounting bolts, 1/16" smaller than the
hole size, is recommended.
Flange Mount Cylinders - The rod bushing extension can be
used as a pilot to locate the fl ange mount. To prevent shifting,
dowel pins should be used after the cylinder is mounted and
aligned.
Clevis Mount Cylinders - This type of cylinder must be pivoted
at both ends and the pivot pins must be in-line and parallel to
each other. The pivot pins should be carried by bearings that are
rigidly held and closely-fi t along the entire length of the pin.
After mounting the cylinder, check to ensure that it is free to
swing through its working arc without interference from other
machined parts.
4.3 Sideload
Eliminate the presence of sideload forces when using high
tonnage tie-rod cylinders. Sideload can occur through one or
more of the following conditions:
1. An eccentric load on the piston rod.
2. A horizontal load on a structure.
3. A structure and/or cylinder misalignment.
4. Non-synchronized lifting actions.
5. Non-stable cylinder base support.
IMPORTANT: To reduce the chance of sideload, always use a
fl at, hard surface as a cylinder support plate surface.
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