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This manual is produced to enable a
competent user to install, operate,
adjust and inspect Rotork EH range of
actuators. Rotork EH range of actuators
may have features not covered in
this manual; always refer to order
specific operating documentation. Only
persons competent by virtue of their
training or experience should install,
maintain and repair Rotork actuators.
Work undertaken must be carried out
in accordance with the instructions
in this and other relevant manuals.
The user and those persons working
on this equipment should be familiar
with their responsibilities under any
statutory provisions relating to the
Health and Safety of their workplace.
Due consideration of additional
hazards should be taken when using
the EH range of actuators with other
equipment. Should further information
and guidance relating to the safe use
of the Rotork EH range of actuators be
required, it will be provided on request.
The electrical installation, maintenance
and use of these actuators should be
carried out in accordance with the
National Legislation and Statutory
Provisions relating to the safe use of
this equipment, applicable to the site of
installation.
For the UK:
Electricity at Work
Regulations 1989 and the guidance
given in the applicable edition of the
“IEE Wiring Regulations’’ should be
applied. Also the user should be fully
aware of his duties under the Health
and Safety Act 1974.
For the USA:
NFPA70, National
Electrical Code ® is applicable.
The mechanical installation should be
carried out as outlined in the manual
and also in accordance with relevant
standards. Since Rotork EH range
actuators may include features not
covered in this manual, always refer
to order specific documentation,
including operating instruction,
hydraulic schematic (HS) and wiring
diagram (WD). If the actuator has
nameplates indicating that it is suitable
for installation in hazardous areas then
the actuator may be installed in Zone
1 and Zone 2 classified hazardous area
locations only. It should not be installed
in hazardous area locations with an
ignition temperature less than 135 °C,
unless suitability for lower ignition
temperatures has been indicated on the
actuator nameplate.
It should only be installed in hazardous
area locations compatible with the gas
groups stated on the nameplate.
The electrical installation, maintenance
and the use of the actuator should be
carried out in accordance with the code
of practice relevant for that particular
hazardous area certification.
No inspection or repair should be
undertaken unless it conforms to the
specific hazardous area certification
requirements. Under no circumstances
should any modification or alteration be
carried out on the actuator as this could
invalidate the actuators hazardous area
approval certification.
Access to live electrical conductors is
forbidden in the hazardous area unless
this is done under a special permit
to work, otherwise all power should
be isolated and the actuator moved
to a non-hazardous area for repair or
attention.
Trained service technicians are
available to assist with or perform
commissioning and maintenance. If
you have any questions or concerns
regarding installation, commissioning,
maintenance, or operation, contact your
local Rotork office for assistance.
EH actuators utilise hydraulic fluid.
Refer to applicable specification for type
required.
Always wear safety glasses and
appropriate protective clothing
including gloves when working with
hydraulic fluid. Also remove any jewelry
or other objects that might conduct
electricity.
Prior to performing any maintenance,
make sure that electric power to the
actuator is removed and that hydraulic
system pressure is released.
Hydraulic fluid is a hazardous material.
Consult the material safety data sheet
(MSDS) for detailed health and safety
information. Fluids should be contained
and disposed of properly in accordance
with applicable regulations.
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Health and Safety
