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Page 11
WINTERIzING
If pump is to be out of service for an extended period of
time, such as the winter months, the following storage
procedures should be followed:
• Remove exterior dirt and grime or any substance
that may trap moisture. Exposed metal is subject to
oxidation; prime and repaint if necessary. If this is not
possible, coat with grease or heavy oil.
• Flush suction and discharge lines. Check for leaks at
this time and replace any worn gaskets.
• Remove lowest plug in pump and drain pump casing
and suction/discharge lines.
• Lubricate bearings.
• If possible, keep unit clean and dry during storage
period to guard against corrosion.
• Seal all open ports to keep out foreign objects such
as insects, rodents, dust and dirt.
• Rotate driver shaft periodically to prevent freeze-up
of internal components.
• Shelter unit from elements if possible.
• Work oil into impeller wear ring by dripping oil into
the gap while rotating by hand.
SPRING START-UP
• Inject sufficient grease into the bearings to displace
old grease. (See Bearing Frame Lubrication in Start-
up section).
• Visually inspect pump.
• Rotate by hand, if any binding occurs, disassemble
and inspect.
ROUTINE MAINTENANCE
A well maintained pumping system will extend the life
of the unit and will require fewer repairs. This means
less down time which can be very critical when constant
delivery of water is required.
A routine maintenance and inspection schedule should
be set up on a weekly, quarterly, and annual basis
with records kept of these actions. For weekly checks,
refer to general maintenance. For quarterly and annual
maintenance, refer to routine inspection check list. Copy
page as necessary for continual usage.
General Information
Maintenance
RECOMMENDED SPARE PARTS
It is recommended that the following spare parts be kept
on-site as a minimum back-up to service your pump
and reduce down-time. Check your model/style against
parts breakdown; See
FIGURES 1 and 2 when selecting
spares.
• Mechanical Shaft Seal
• Packing Set and Packing Hooks
• Shaft Sleeve(s)
• All O-Rings Required for One Pump
• Wear Rings
• Retaining Rings
If having a pump non-operational has severe
consequences, a back-up pump should be considered.
Otherwise, a back-up impeller, volute case, bearings
and shaft are advised.
PUMP DECONTAMINATION
Before disassembling
a pumping unit, it is very important to ensure that the
unit is thoroughly cleaned and there are no residual
contaminants that could cause injury or illness. The
method of cleaning pumps will vary with the design and
construction of the pump. In general, the pump needs
to be properly drained, flushed out, and any evidence
of contamination removed. Contents of the pump,
cleaning materials, and wash-down materials should
be properly disposed. In addition to thorough cleaning,
disinfecting all surfaces for protection from injury and
illness is recommended. During the decontamination
and disassembly work to the pump, workers are
required to wear protective clothing and equipment
to protect them from exposure to potentially harmful
materials.
When decontaminating a pump, it is important to use
a fluid or compound that will not damage (e.g., corrode
or swell) pump components. Often the pump materials
of construction are suitable for limited corrosive service
with pumpage liquids, such as potable water. Limited
contact time with the pump is recommended. Before
disinfection or decontamination of a pumping unit,
careful consideration must be given to the following
items: mixing concentration prior to entering the
pump, method of dosage, and pumping operation,
e.g., limiting flow, throttling, and limiting retention time.
Pump components particularly sensitive to disinfection
fluids or compounds include pump shafting, bearing
journals, and elastomeric sleeve-type bearings.
It is recommended to always contact the pump
manufacturer prior to disinfecting or decontaminating a
pump.