5
GENERAL INSTRUCTIONS
PURPOSE OF THE MANUAL
This manual is furnished to acquaint you with
some of the practical ways to install, operate, and
maintain this pump. Read it completely before any
installation, operation, or maintenance on your unit
and keep it handy for future reference.
Equipment cannot operate well without proper
care. To keep this unit at top efficiency, follow
the recommended installation and servicing
procedures outlined in this manual.
WARRANTY
Refer to your local representative for warranty
coverage.
RECEIVING THE PUMP
Check the pump for shortages and damage
immediately upon arrival. (An absolute must!)
Prompt reporting of any damage to the carrier’s
agent, with notations made on the freight bill, will
expedite satisfactory adjustment by the carrier.
Pumps and drivers are normally shipped from the
factory mounted on a base plate and painted with
primer and one finish coat. Couplings may either
be completely assembled or have the coupling
hubs mounted on the shafts and the connecting
members removed. When the connecting
members are removed, they will be packaged in a
separate container and shipped with the pump or
attached to the base plate.
Shafts are in alignment when the unit is shipped;
however, due to shipping, the pumps may arrive
misaligned. Alignment must be established during
installation. A-C Pump has determined that proper
and correct alignment can only be made by
accepted erection practices. (See the
Foundation
,
Baseplate Setting
, and
Coupling
Alignment
sections.)
TEMPORARY STORAGE
If the pump is not to be installed and operated
soon after arrival, store it in a clean, dry place
having slow, moderate changes in ambient
temperature. Rotate the shaft periodically to coat
the bearings with lubricant, to retard oxidation and
corrosion, and to reduce the possibility of false
brinelling of the bearings.
LOCATION
The pump should be installed as near the suction
supply as possible, but no less than five suction
diameters with the shortest and most direct
suction pipe practical. See the section entitled
Suction and Discharge Piping. The total dynamic
suction lift (static lift plus friction losses in suction
line) should not exceed the limits for which the
pump was sold.
The pump must be primed before starting.
Whenever possible, the pump should be located
below the fluid level to facilitate priming and
assure a steady flow of liquid. This condition
provides a positive suction head on the pump. It
may also be possible to prime the pump by
pressurizing the suction vessel.
When installing the pump, consider its location in
relation to the system to assure that sufficient Net
Positive Suction Head (NPSH) at pump suction is
provided. Available NPSH must always equal or
exceed the required NPSH of the pump.
The pump should be installed with sufficient
accessibility for inspection and maintenance. A
clear space with ample head room should be
allowed for the use of an overhead crane or hoist
sufficiently strong to lift the unit.
NOTE
: Allow sufficient space to be able to
dismantle the pump without disturbing the pump
inlet and discharge piping.
Select a dry place above the floor level wherever
possible. Take care to prevent the pump from
freezing during cold weather when not in
operation. Should the possibility of freezing exist
during a shut-down period, the pump should be
completely drained, and all passages and pockets
where liquid might collect should be blown out with
compressed air.
Make sure there is a suitable power source
available for the pump driver. If motor driven,
electrical characteristics should be identical to
those shown on the motor data plate.
FOUNDATION
A substantial foundation and footing should be
built to suit local conditions. It should form a rigid
support to maintain alignment. The pump
assembly must be mounted to a suitable
