Goulds Pumps 3298 - IOM - Manual (Page 57)

Maintenance
Disassembly
Disassembly precautions
WARNING:
• Chemical hazard. You must individually decontaminate each component according to all federal,
state, local, and company environmental regulations.
• A build up of gases within the pump, sealing system, or process-piping system can result in an
explosive environment within the pump. Make sure that the process piping system, pump, and
sealing system are properly vented prior to operation.
• Burn Hazard. Coupling may be hot. Use proper protection when handling.
• Burn Hazard. use proper protection when handling bearings.
• Worn parts may have sharp edges. Wear heavy work gloves while handling.
• Chemical Hazard. A small amount of liquid may be left in the pump.
• Process fluid leaks can result in an explosive atmosphere. Follow all pump and seal assembly
procedures.
• Make sure that the pump is isolated from the system and that pressure is relieved before you
disassemble the pump, remove plugs, open vent or drain valves, or disconnect the piping.
• Crush hazard. The unit and the components can be heavy. Use proper lifting methods and wear
steel-toed shoes at all times.
• The pump can handle hazardous and toxic fluids. Identify the contents of the pump and observe
proper decontamination procedures in order to eliminate the possible exposure to any hazardous or
toxic fluids. Wear the proper personal protective equipment. Potential hazards include, but are not
limited to, high temperature, flammable, acidic, caustic, explosive, and other risks. You must handle
and dispose of pumped fluid in compliance with the applicable environmental regulations.
CAUTION:
• You must keep the shop area clean and free of any substances that can contaminate the magnets,
such as ferrous metals.
• The magnets in this unit are extremely powerful. Beware of serious injury to fingers and hands.
Keep magnetic drive components and magnetic tools apart by a minimum of 3 ft (1 m).
NOTICE:
Use a bench with a non-magnetic work surface such as wood or brass when you work on the
pump.
Prepare the pump for disassembly
1. Lock out power to the driver.
WARNING:
Always disconnect and lock out power to the driver before you perform any installation or maintenance
tasks. Failure to disconnect and lock out driver power will result in serious physical injury.
• Electrical connections must be made by certified electricians in compliance with all international,
national, state, and local rules.
• Refer to driver/coupling/gear manufacturers installation and operation manuals (IOM) for specific
instructions and recommendations.
2. Shut off all valves that control flow to and from the pump.
3. Drain and flush the pump before you remove it from the piping.
4. Isolate the pump from the system and then flush the pump using a compatible liquid.
5. Disconnect all piping and auxiliary equipment.
6. For the frame-mounted pump, remove the coupling guard and coupling.
7. Remove the casing foot and frame and C-face motor-support foot bolts.
8. Remove the pump from the baseplate.
9. For the frame-mounted pump, drain the oil.
10. Decontaminate the pump:
a) Connect a clean-flush liquid supply to the discharge nozzle.
3298 Family Installation, Operation, and Maintenance Manual 55