Goulds Pumps VIT - IOM - Manual (Page 59)

Maintenance
Maintenance schedule
Maintenance inspections
A maintenance schedule includes these types of inspections:
• Routine maintenance
• Routine inspections
• Three-month inspections
• Annual inspections
Shorten the inspection intervals appropriately if the pumped fluid is abrasive or corrosive or if the
environment is classified as potentially explosive.
Routine maintenance
Perform the following tasks whenever you perform routine maintenance:
• Lubricate the bearings on pumps supplied with thrust pots.
• Inspect the packing or mechanical seal.
Routine inspections
Perform the following tasks whenever you check the pump during routine inspections:
• Check for unusual noise, vibration, and bearing temperatures.
• Check the pump and piping for leaks.
• Analyze the vibration.
Three-month inspections
Perform the following tasks every three months:
• Check that the foundation and the hold-down bolts are tight.
• Check the packing if the pump has been left idle, and replace as required.
Annual inspections
Perform the following inspections one time each year:
• Check the pump capacity.
• Check the pump pressure.
• Check the pump power.
If the pump performance does not satisfy your process requirements, and the process requirements have
not changed, then do the following:
1. Disassemble the pump.
2. Inspect it.
3. Replace worn parts.
Adjust and replace the packing
CAUTION:
Do not over-tighten the stuffing box. Excessive pressure can wear out packing prematurely and seriously
damage the shaft.
NOTICE:
Packed stuffing boxes are not allowed in an ATEX-classified environment.
Maintenance
Model VIT Installation, Operation, and Maintenance 57