SVCN 7 INSTALLATION, OPERATION, & MAINTENANCE
It outlines recommendations for the pump only and must be
supplemented by schedules for other equipment on the
package.
Table 3-2 Recommended Maintenance Schedule
Frequency
Task
Daily
Check suction and discharge gauges.
Check for abnormal operating conditions (high/low temperature, flows,
vibration, pressures etc.)
Check motor current/driver power.
Check for leakage from seals and joints.
Check all lubricant levels (i.e. bearing housing oilers, seal plan 52/53, seal
supply systems) (if applicable).
Check for free flow of cooling medium (if applicable).
Check stand-by pump is at applicable temperature and available to start as
required.
Weekly Check
unit
vibration.
Check operators log for loss of unit performance.
Monthly
Check all lubricants for contamination by sample analysis.
Check all paint or protective coatings.
Check all power/instrument cable glands for tightness.
Every Six Months
Change all lubricants.
Yearly
Check foundation fixing, bolting, grouting for looseness, cracking or general
distress.
Check unit alignment against previous inspection.
Check calibration of instruments.
Every Three Years
Check internal condition of pump and all auxiliary piping for
corrosion/erosion.
Check internal pump components for wear.
3.5.2 TROUBLESHOOTING
This chart presents the probable troubles that can occur to the pump along with the probable causes
and remedies for the troubles.
Table 3-3 Troubleshooting Table
TROUBLE
CAUSE
REMEDY
Insufficient capacity and/or
pressure
Suction pressure or speed too
low
Open suction valve wide. Check
power supply for correct
voltage
Incorrect direction of rotation.
Check driver instruction book.
Excessive amount of air or
vapors in the liquid
Check suction system for air
leakage and correct. Vent
air. Tighten flange bolts.
Foreign material in impeller
Dismantle pump and remove
any foreign material.
Foreign material in suction line.
Dismantle suction line and
remove foreign material.
DO2604-13
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