Armstrong 4280 Series Instrucciones de instalación y funcionamiento - Página 2
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i n s ta l l at i o n &
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2
For service work instructions refer to Armstrong Catalog
File No.: 42.81
For replacement parts numbers refer to Armstrong Catalog
File No.: 6042.127 & 128.
gener al
Armstrong Centrifugal Pumps, properly installed and given rea-
sonable care and maintenance, will perform satisfactorily for a
long period of time. These instructions describe the procedures
which should be followed to ensure trouble-free operation. All
work should be performed by qualified personnel.
inspection
Armstrong series 4280 motor mounted pumps are thoroughly
tested and inspected before shipment to assure they meet with
your order requirements. All units must be carefully examined
upon arrival for possible damage during transit. Any evidence
of mishandling should be reported immediately to the carrier
and noted on the freight bill.
important
Do not run the pump for any length of time under very low flow
conditions or with the discharge valve closed. To do so could
cause the water in the casing to reach super heated steam
conditions and will cause premature failure and could cause se-
rious and dramatic damage to the pump and surrounding area.
installation - series 4280 motor
mounted pump
Series 4280 Motor
Mounted Pump
1 location
Locate the unit as close as practical to the liquid being pumped,
with a short, direct suction pipe. Ensure adequate space is left
around the unit for operation, maintenance, service and inspec-
tion of parts.
Electric motor driven pumps should not be located in damp or
dusty location without special protection.
2 storage
Pumps not immediately placed into service, or removed from
service and stored, must be properly prepared to prevent rust-
ing and bearing damage.
Bearings are lubricated by grease, and must be rotated every
two to three months to return the lubricant to the upper half
of the bearing and prevent ball damage. Do not leave shaft in
same position each time.
Internal rusting can be prevented by removing the plugs at the
top and bottom of the casing and drain or air blow out all water
to prevent rust buildup or the possibility of freezing. Be sure to
reinstall the plugs when the unit is made operational. Rust
proofing or packing the casing with moisture absorbing mate-
rial and covering the flanges is acceptable. When returning to
service be sure to remove the drying agent from the pump.
3 foundation and mounting
The following text is offered as general suggestions for the
preparation of a satisfactory foundation.
Foundation should be sufficiently substantial to absorb any
vibration and permanently support the unit.
The most satisfactory foundations are made of reinforced con-
crete and should be at least 2.5 times the shipping weight of the
pumping unit. The foundation should be poured well in advance
of the installation to allow proper time for drying and curing.
Locate the pump on its foundation and mark off the foundation
holes, using the motor feet as the template. Drill (4) holes the
required size and insert anchors. Use only the motor feet to
secure the pump and motor unit. Do not use the pump casing
support feet. Use a tamping tool to drive home the lead sleeve,
until it is below the level of the foundation and firmly fixed into
the concrete.
Protruding bolts should be avoided, since this arrangement
would not allow disassembly, or back-pullout, of the unit with-
out disturbing pipe connections.