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General Information
Start-up
OBSERVATIONAL MAINTENANCE
When the pump and system operation have been
stabilized, verify that pump unit is operating properly.
Observe the following:
VIBRATION All rotating machines can be expected to
produce some vibration, however, excessive vibration
can reduce the life of the unit. If the vibration seems
excessive, discontinue operation, determine cause of
the excessive vibration and correct.
NOISE When the unit is operating under load, listen
closely for unusual sounds that might indicate that the
unit is in distress. Determine the cause and correct.
OPERATING TEMPERATURE During operation, heat
is dissipated from the pump and the driver. After a short
period of time, the surface of the pump bracket will be
quite warm (as high as 150°F / 65°C), which is normal.
If the surface temperature of the pump bracket or driver
is in excess of 180°F (82°C), discontinue operation,
determine cause of the excessive temperature rise and
correct. Bearings will run hotter for a brief run-in period
after packing which is normal. However, worn bearings
will cause excessive temperatures and need to be
replaced. The pump unit is cooled by the water flowing
through it, and will normally be at the temperature of the
water being pumped.
STUFFING BOX After a short period of operation, verify
that the stuffing box area and gland are not hot.
If heating is detected, loosen the gland nuts evenly until
water is just running out of stuffing box in a
DROPLET
form (approximately 40-60 drops per minute). Water
must not be streaming or spraying out.
Verify cool operation periodically. Adjust gland nuts
EVENLY as necessary for lubrication and cooling of the
packing. If packing has been tightened to the limit of the
packing gland travel, additional packing is necessary.
PUMP PROTECTION COLD WEATHER/
WET WEATHER INSTALLATIONS
SYSTEM DRAINS Provide drain valves to empty
system, including pump case, to prevent freezing
damage.
SHELTER If possible, provide shelter for unit to protect
from weather. Allow adequate space around pump unit
for service. When effectively sheltered a small amount
of heat will keep temperature above freezing. Provide
adequate ventilation for unit when running.
CONDENSATION When the temperature of metal parts
is below dew point and the surrounding air is moist,
water will condense on the metal surfaces and can
cause corrosion damage. In severe situations, a space
heater can be considered to warm the unit.
PERFORMANCE CHECk
Periodically check the output of the pump. If
performance is noticeably reduced, refer to Trouble-
shooting section.
REPACkING
Refer to Packing Ring Replacement section.
MECHANICAL SEAL
Adjustment or maintenance is normally not required.
The seal is enclosed within the pump and is self
adjusting. The seal is cooled and lubricated by the liquid
being pumped. Consult factory for proper replacement
procedure.