Enerpac PR-Series Electric - Handbuch (Seite 2)

2
• Distribute the load evenly when performing lifts with multiple
jacks. Failure to heed this warning may cause loss of load and/
or failure of the jacks.
• Be aware of external events and acts of nature (wind, storms,
flooding, earthquakes or other seismic activity, etc.) that could
occur either while the jack is in active use, or while it is left
loaded and unattended. Do not use the jack if it is likely that
such conditions will occur.
CAUTION: Failure to observe and comply with the
following precautions could result in minor or moderate
personal injury. Property damage could also occur.
• When jack is not in use, fully retract the cylinder and protect
the entire unit from external damage. Keep the jack clean,
avoid weld splatter, and store in a clean dry area. Failure to
observe these precautions may cause erratic operation,
reduced performance, increased wear and/or damage to jack.
• Keep the jack away from flames and heat. For optimum
performance, do not expose the jack to temperatures above
150 °F [65 °C]. Failure to observe these precautions may
cause erratic operation, reduced performance, increased wear
and/or damage to jack.
• Immediately replace worn or damaged parts with genuine
Enerpac parts. Enerpac parts are designed to fit properly and
to withstand high loads. Non-Enerpac parts may break or
cause the jack to malfunction.
IMPORTANT:
• Enerpac U-Rings (optional accessory) can be installed on the
jack to support lifted loads. However, the U-Rings are not
intended to provide long term support. If the load must remain
supported for more than 30 days, use appropriately rated load
support devices to support the load.
• Hydraulic equipment must only be serviced by a qualified
hydraulic technician. For repair service, contact the Enerpac
authorized service center in your area.
• To avoid damage to jack internal components, do not continue
pressurizing the jack cylinder after it reaches maximum
extension or retraction.
2.2 Electrical Safety Instructions
DANGER: Failure to observe the following instructions
and precautions may result in serious personal injury or
death!
USE AND CARE
• Store the jack indoors. Keep in a secured area to prevent use
by unauthorized personnel.
• Do not clean the jack with a water spray or the like.
• Do not operate the jack with a damaged cord or plug, or after
the jack malfunctions or is dropped or damaged in any manner.
Return the jack to the nearest Enerpac authorized service
center for examination, repair, or electrical or mechanical
adjustment.
DISCONNECTING POWER
• Be sure that jack motor is off before removing plug from
electrical outlet.
• Do not unplug the jack by pulling on the cord. To unplug, grasp
the plug, not the cord.
• • Remove plug from electrical outlet when the jack is not in
use and before servicing or cleaning the jack.
DANGER: High voltage is present inside the jack even
when motor is off. Before removing the electrical
enclosure cover or opening the electrical enclosure
door, be sure that the jack power cord is disconnected from the
electrical outlet or other electrical power source.
GROUNDING INSTRUCTIONS
DANGER: Risk of electric shock! Connect the jack only
to a properly grounded outlet.
The jack must be grounded. In the event of malfunction or
breakdown, grounding provides a path of least resistance for
electric current to reduce the risk of electric shock. The jack is
equipped with a cord having an equipment grounding conductor.
A grounding plug is included with the cord on single-phase
models. On three phase models only, a grounding plug (customer
supplied) of the proper type must be installed by a qualified
electrician. The plug must be plugged into an appropriate outlet
that is properly installed and grounded in accordance with all
local codes and ordinances.
DANGER: Improper connection of the jack grounding
conductor can result in electric shock. The conductor
with insulation having an outer surface that is green
with or without yellow stripes is the jack grounding conductor.
• If the cord and/or plug are damaged, do not connect the jack
to a live electrical outlet. Repair or replace the damaged items as
required and be sure the grounding conductor is properly wired
before reconnecting the jack to the outlet. Consult a qualified
electrician if grounding conductor wiring procedures are not
completely understood or if there is any doubt as to whether the
jack is properly grounded.
GROUNDING INSTRUCTIONS (CONTINUED)
• Models beginning with PREMB, PREMI and PREME: Do not
modify the plug provided with the jack. If the plug will not
fit in the outlet, have a proper outlet installed by a qualified
electrician.
• A qualified electrician should be consulted if there is any
doubt as to whether an outlet box is properly grounded.
• All jack models beginning with PREME and PREMI: The jack
is for use on a single-phase circuit having a nominal rating of
more than 120 volts and is factory equipped with a specific
electric cord and plug. No adapter should be used with the
plug.
• All jack models beginning with PREMG, PREMJ, PREMR or
PREMW: The jack is for use on a three phase circuit having a
nominal rating of more than 120 volts. A qualified electrician
must obtain, install and wire the proper plug for the jack's
specified power requirements. No adapter should be used with
the plug.
• If the jack must be reconnected for use on a different type
of electric circuit, the reconnection should be made by a
qualified electrician. After the reconnection, the jack should
comply with all local codes and ordinances.
USE OF EXTENSION CORDS
It is important to use the proper size extension cord with the
jack power cord when use of an extension cord is necessary.
A qualified electrician should be consulted to help specify and
select the proper size extension cord.
DANGER: Risk of electric shock! Connect the jack only
to a properly grounded outlet.