Installation instructions, 1 safety precautions – Flowserve SMB Series Electric Actuators User Manual
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SMB Series/SB Series Installation and Maintenance FCD LMENIM1401-04-AQ – 01/15
flowserve.com
4
Installation Instructions
4.1 Safety Precautions
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WARNING: Read this Installation and Maintenance Manual carefully and completely before
attempting to install, operate, or troubleshoot the Limitorque actuator.
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WARNING: Be aware of electrical hazards. Turn off incoming power before working on the
actuator and before opening the switch compartment.
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WARNING: Potential HIGH PRESSURE vessel — be aware of high-pressure hazards associated
with the attached valve or other actuated device when installing or performing maintenance on
the actuator. Do not remove the actuator mounting bolts from the valve or actuated device unless
the valve or device stem is secured or there is no pressure in the line.
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WARNING: For maintenance and/or disassembly of the actuator while installed on the valve,
ensure that the actuator is not under thrust or torque load. If the valve must be left in service, the
valve stem must be locked in such a way as to prevent any movement of the valve stem.
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WARNING: Do not attempt to remove the spring cartridge cap, housing cover, or stem nut
locknut from the actuator while the valve or actuated device is under load.
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WARNING: Do not manually operate the actuator with devices other than the installed handwheel
and declutch lever. Using force beyond the ratings of the actuator and/or using additive force
devices such as cheater bars, wheel wrenches, pipe wrenches, or other devices on the actuator
handwheel or declutch lever may cause serious personal injury and/or damage to the actuator
and valve.
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WARNING: Do not exceed any design limitations or make modifications to this equipment
without first consulting Limitorque.
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WARNING: Actuators equipped with electrical devices (motors, controls) requiring field wiring
must be wired and checked for proper operation by a qualified tradesman.
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WARNING: Use of the product must be suspended any time it fails to operate properly.