Goulds Pumps 3393 - IOM - Manual (Page 53)

Maintenance
Disassembly precautions
WARNING:
• This manual clearly identifies accepted methods for disassembling units. These methods must be
adhered to. Trapped liquid can rapidly expand and result in a violent explosion and injury. Never
apply heat to impellers, propellers, or their retaining devices to aid in their removal unless explicitly
stated in this manual.
• 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.
• 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.
• A small amount of liquid will be present in certain areas like the seal chamber.
NOTICE:
• Avoid injury. Worn pump components can have sharp edges. Wear appropriate gloves
while handling these parts.
• Always wear the proper Personal Protective Equipment (PPE).
• Make sure that all replacement parts are available before you disassemble the pump for
overhaul.
• Make sure that no damage occurs to any part during disassembly that will impede the
removal of other parts. For example, damage to the shaft that makes it difficult to remove a
part that must slide over that part of the shaft.
Required Tools
Metric Wrenches (Hex and Open Ended) Torque Wrench with Metric Socket
Screwdriver Dial Indicator
Lifting Slings Metric Micrometers (Inside and Outside)
Soft Faced Hammer Cleaning Agents and Solvents
Induction Bearing Heater Feeler Gauges
Brass Drift Punch Metric Allen Wrenches
Brass Drift Punch Files
Spanner Wrench Emery Cloth
Disassembly
WARNING:
Make sure that the unit cannot roll or fall over and injure people or damage property.
1. Shut off all valves controlling flow to and from pump.
2. Drain liquid from piping. Flush pump if necessary.
3. Lock out power to the driver.
4. Disconnect all auxiliary piping and tubing.
5. Remove coupling guard.
6. Disconnect coupling.
7. Unbolt the pump from the piping system and baseplate and remove pump from baseplate.
8. Drain oil from the bearing housing(s) before inverting the pump.
Model 3393 Installation, Operation, and Maintenance Manual 51