Goulds Pumps 3996 Installation, Operation And Maintenance Instructions page 9

Never operate the pump without liquid supplied to mechanical seal. Running a mechanical
CAUTION seal dry, even for a few seconds, can cause seal damage and must be avoided. Physical
injury can occur if mechanical seal fails.
Never attempt to replace packing until the driver is properly locked out and the coupling
WARNING
spacer is removed.
WARNING Dynamic seals are not allowed in an ATEX classified environment.
DO NOT operate pump below minimum rated flows or with suction and/or discharge
WARNING valve closed. These conditions may create an explosive hazard due to vaporization of
pumpage and can quickly lead to pump failure and physical injury.
Ensure pump is isolated from system and pressure is relieved before disassembling pump,
WARNING
removing plugs, opening vent or drain valves, or disconnecting piping.
Shutdown, Disassembly, and Reassembly:
WARNING
Pump components can be heavy. Proper methods of lifting must be employed to avoid
physical injury and/or equipment damage. Steel toed shoes must be worn at all times.
The pump may handle hazardous and/or toxic fluids. Observe proper decontamination
procedures. Proper personal protective equipment should be worn. Precautions must be
WARNING
taken to prevent physical injury. Pumpage must be handled and disposed of in
conformance with applicable environmental regulations.
Operator must be aware of pumpage and safety precautions to prevent physical injury.
WARNING
WARNING Lock out driver power to prevent accidental startup and physical injury.
Allow all system and pump components to cool before handling them to prevent physical
CAUTION
injury.
If pump is a Model NM3171, NM3196, 3198, 3298, V3298, SP3298, 4150, 4550, or
3107, there may be a risk of static electric discharge from plastic parts that are not
CAUTION properly grounded. If pumped fluid is non-conductive, pump should be drained and
flushed with a conductive fluid under conditions that will not allow for a spark to be
released to the atmosphere.
Wear heavy work gloves when handling impellers as sharp edges may cause physical
CAUTION
injury.
Wear insulated gloves when using a bearing heater. Bearings will get hot and can cause
CAUTION
physical injury.
General Precautions
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