Goulds Pumps CV 3171 - IOM - Manual (Page 25)

CV 3171 IOM 05/11 25
PREVENTIVE MAINTENANCE
GENERAL COMMENTS ...................................................................................................... 25
MAINTENANCE SCHEDULE............................................................................................... 25
MAINTENANCE OF BALL/STEADY BEARINGS ............................................................... 26
MAINTENANCE OF UPPER STUFFING BOX .................................................................... 27
IMPELLER CLEARANCE SETTING – CV 3171.................................................................. 28
IMPELLER CLEARANCE SETTING – LF Sizes
TROUBLESHOOTING ......................................................................................................... 31
GENERAL COMMENTS
A routine maintenance program can extend the life of your pump. Well-maintained
equipment will last longer and require fewer repairs. Accurate records should be kept
as they will identify trends and help pinpoint potential causes of problems.
MAINTENANCE SCHEDULE
ROUTINE MAINTENANCE
 Bearing lubrication
 Discharge pressure
 Temperature monitoring
 Vibration analysis
 Seal monitoring (when applicable)
ROUTINE INSPECTIONS
 Check for unusual noise, vibration and thrust
bearing temperatures
 Check float controls for proper setting and
operation
 Inspect pump and piping for leaks
 Check grease for thrust bearing. Refer to
Table 1, Section 5 for lubrication intervals.
 Grease steady bearings if applicable, adjust
grease cups if supplied
 Check upper stuffing box leakage. Adjust or
replace packing if required (when applicable)
3 MONTH INSPECTIONS
 Check anchor bolts for tightness
 If pump has been idle, check carbon steel
shafts (if applicable) for rust and seizing by
rotating the shaft several turns. Replace if
required.
 Ball (thrust) bearing grease should be changed
at least every 3 months or according to Table 1,
whichever occurs first. Change grease more
often if there are any adverse conditions which
may contaminate the grease. Grease should be
injected while turning the shaft until fresh
grease comes out.
• Check coupling alignment and realign if
required
ANNUAL INSPECTIONS
•
Check pump capacity, pressure and power. If
pump performance does not satisfy your
process
requirements, and process
requirements or the piping system has not
changed, pump should be disassembled,
inspected, and worn parts should be replaced. If
there is no sign of wear, a system inspection
should be done.
The Preventive Maintenance section
must be adhered to in order to keep the
applicable ATEX classification of the
equipment. Failure to follow these procedures
will void the ATEX classification for the
equipment.
Inspection intervals should be
shortened appropriately if the
pumpage is abrasive and/or corrosive,
or if the environment is classified as potentially
explosive.
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