ANSIMAG K+1516 - 3. Safety Check List and Hazards; Magnetic Field and Force Hazards; Operational Safety Hazards

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3. SAFETY CHECK LIST
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Warning! Magnetic Field Hazard. Magnetic drive pumps contain some of the
world's strongest magnets. These magnets are located in the impeller and outer drive
magnet assemblies. The powerful magnetic fields could adversely affect persons who are
assisted by electronic devices that may contain reed switches, and these people should not
handle magnetic pumps or their parts. Pacemakers and defibrillators are examples of these
devices.
Magnetic Field Hazard DO Use jackscrews DON’T use hands!
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Warning! Magnetic Forces Hazard. Use only the recommended disassembly and
assembly procedures when separating the wet end from the drive end. These procedures are
found in Sections 7-a and 8-a. The magnetic forces are strong enough to abruptly pull the
drive end and wet end together. Be very careful to keep fingers away from mating faces of
wet end and drive end to avoid injury.
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Warning! Hot Surfaces Hazard. These pumps are designed to handle liquids at
temperatures up to 250
o
F and will become hot on the outside. This creates a hazard of
burns to personnel coming in contact with the equipment.
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Warning! Rotating Parts Hazard. The pump contains parts which rotate during
operation. Before operation the pump must have the coupling guard secured in place and be
completely assembled. To prevent injury during maintenance the pump and/or driver must
be disconnected and locked out from the power source. Local safety standards apply.
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Warning! Chemical Hazard. The pumps are designed to handle all types of chemical
solutions. Many are hazardous to personnel. This hazard could take the form of leaks and
spills during maintenance. Plant procedures for decontamination should be followed during
pump disassembly and part inspection. Keep in mind there is always the possibility of
small quantities of liquid being trapped between pump components.
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Caution! Magnetic field sensitive items. Do not put magnetic field sensitive
items such as credit cards, floppy diskettes or magnetic tapes near the impeller or drive
magnet assemblies.
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Caution! Magnetic Tools. Do not use steel or iron tools near magnets. Steel tools
such as wrenches and screwdrivers are easily attracted to magnets and can break them on
contact.