OM-07264
S SERIES PUMPS
OPERATION
PAGE C - 1
OPERATION - SECTION C
Review all SAFETY information in Section A.
Follow the instructions on all tags, labels and
decals attached to the pump.
This pump is designed to handle most
non‐volatile, non‐flammable liquids
containing specified entrained solids.
Do not attempt to pump volatile, corro
sive, or flammable
liquids which may
damage the pump or endanger person
nel as a result of pump failure.
PRIMING
Install the pump and piping as described in
IN
STALLATION
. Make sure that the piping connec
tions are tight, and that the pump is securely
mounted. Check that the pump is properly lubri
cated (see
LUBRICATION
in
MAINTENANCE
AND REPAIR
).
This is not a self‐priming pump, so an external
priming device must be used if the pump is in
stalled on a
suction lift
. A foot valve may be in
stalled at the end of the suction pipe to maintain the
prime; however, this may adversely affect pump
performance due to friction loss. Many standard
centrifugal models are equipped with a hand‐oper
ated vacuum pump, exhaust primer, or ejector for
this purpose. If a priming device was not furnished
with the pump, it may be ordered from the factory
as an option.
Before attempting to operate the priming device,
close the discharge throttling valve. (Installation of
a spring‐loaded check valve is also recommended
to facilitate priming.) Once the pump is fully
primed, close the valve between the priming de
vice and pump to preserve the prime. Start the
pump and open the discharge valve slowly to fill
the discharge line.
Never operate this pump unless there is
liquid in the pump casing. The pump will
not prime when dry. Extended operation of
a dry pump will destroy the seal assembly.
Hand Primers
Hand‐operated primers are usually mounted on
the pump and, when operated, draw air out of the
suction line and pump casing. To prime a pump
with a hand vacuum pump, open the cock on the
pump priming line. Operate the hand pump until
liquid flows out of the check valve on the bottom of
the primer pump. Once the pump is primed, close
the valve located between the primer and the
pump so that the prime will not be lost.
DRAIN COCK
HANDLE
Figure 1. Hand Primer Assembly
STARTING
Consult the operations manual furnished with the
power source
.
