4
SECTION V
MAINTENANC
E
1.
There should be no mechanical seal leakage except for a brief break in period. Mechanical seals
should be replaced if they are leaking
3.
Refer to the motor manufacturer s instructions for periodic maintenance requirements.
4.
Check that electrical contro
l equipment contacts are in good condition and clean.
5.
Bearing relubrication requirements
refer
to the motor manufacturer s instructions
.
Do not
overlubricate the bearings.. Such action will cause bearings to overheat.
6.
Refer to the
General Pump Inspec
tion and Maintenance Schedule
for best results.
General Pump Inspection and Maintenance Schedule
VIL Pumps
, Types RC, CC, and CS
Excludes motors, VFD s, and controls.
Contact Patterson Pump Company if assistance is needed to determine the inspection
and service
requirements for a specific pump.
Inspect (
) or service (
) at the indicated calendar
time or run time interval
whichever comes first
Routinely
Monthly
2000
hours
or 3
months
4000
hours
or 6
months
8000
hours
or 12
months
Unusual noise
Unusual vibration
Unusual temperature
Leaks in pump or piping
Pressure gauge readings
Visual inspection of equipment general condition
Anytime a pump is opened, inspect the running
clearances and restore them to or
iginal specifications if
the running clearances have doubled
.
Anytime a pump is opened, inspect the impeller for
corrosion or excessive wear.
Mechanical seal (should be no leakage)
Drain lines are working properly
Coupling integrity (Type RC only)
Operate the pump
Add grease to motor anti-friction bearings
(maintain records)
Refer to
motor manufacturer s instructions.
Perform a comparative field test (flow, pressures, and
power) with calibrated instruments. Resto
re internal
running clearances if results are unsatisfactory (install
new wear rings).
Perform a comparative vibration test
Inspect sleeve. Replace if worn.
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