Section 4 Operation; General; Before Starting The Pump; Operating At Reduced Capacity - Pentair Fairbanks Nijhuis 7100 19A Installation, Operation And Maintenance Manual

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SECTION 4

General

Because variations may exist in both the
equipment and in the particular installation
of the a pump and driver, specific operating
instructions are not within the scope of this
manual. However, there are general rules
and practices that apply to all pump
installations and operation.
Before starting or operating the pump, read
this entire manual, especially the following
instructions.

Before starting the pump:

1. Rotate the unit or assembly by hand to
assure all on moving parts are free.
2. Install coupling
exposed rotating parts.
mandatory on discharge head (motor
pedestal) openings if the pump is
equipped with an adjustable coupling.
3. Install packing (or mechanical seal).
4. Install water line to packing box (for
mechanical seals).
5. Observe all
tags
equipment.
6. Ensure water in sump is at the specified
level for adequate submergence.
7. If pump has a packed box, adjust the
packing gland finger tight.
Packing Adjustment in the maintenance
section to properly adjust packing.
If excessive vibration or noise occurs
during operation, shut the pump down and
review the Troubleshooting section. If the
problem cannot be corrected, consult a
Fairbanks Nijhuis™ representative.
Fairbanks Nijhuis™
OPERATION
guards around
Guards are
,
attached to
Refer to
19A, 19B 7100 & 21H 7000 Vertical Turbine Pumps

Operating at Reduced Capacity

In a typical application covering a wide
range of flow rates a variable speed driver is
often used to adjust pump and this is taken
into consideration by Fairbanks Nijhuis
when selecting the pump and impeller trim.
Although these pumps are applicable over a
wide range of operating conditions, care
should be exercised when doing so when
the actual conditions differ from the sold
conditions. You should always contact your
nearest Fairbanks Nijhuis distributor or
factory before operating the pumps at any
condition other than that for which they were
sold.
Generally, these pumps can be operated
continuously at capacity equal to 60% of the
pump capacity at the best efficiency point,
and at higher capacities.
all
Initial Start-up
Inspect the complete installation to ensure
that the installation instructions of this
manual, and the manuals of all the related
equipment, have been followed and that the
installation is complete.
Ensure that the driver is properly serviced,
and that the proper pump rotation is
and
obtained.
this
Rotate the pump shaft by hand. It should
rotate freely on motor driven installations.
Ensure the discharge valve is open.
Start the pump according to the following
procedure:
1. Start the driver according to the driver
manufacturer's instructions.
2. Immediately after the pump has been
started,
stuffing box lubrication and operation,
and pump noise level.
monitor these for the first several hours
of operation.
3. Check the driver and other necessary
equipment
following their manuals.
4. Check the foundation for integrity.
check lubrication
Continue to
for satisfactory operation
system,
09/03/13