SELF-PRIMING CENTRIFUGAL PUMPS
OM--04760
OPERATION
PAGE C -- 1
OPERATION --- SECTION C
Review all SAFETY information in Section A.
Follow the instructions on all tags, labels and de-
cals attached to the pump.
Do not attempt to pump any liquids the
pump has not been designed for, and
which may damage the pump or endan-
ger personnel as a result of pump fail-
ure.
Pump speed and operating conditions
must be within the performance range
shown on the curve in Parts Lists manual.
Refer to the pump Specification Data Sheet or the
accompanying Parts List Manual for the specific
performance for your pump.
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 the
MAINTENANCE
AND REPAIR
manual).
The pump is self-priming, but it should never be op-
erated unless there is liquid in the pump casing.
Never operate the pump unless there is liq-
uid in the pump casing. The pump will not
prime when dry. Extended operation of a
dry pump will destroy the seal assembly.
Add liquid to the pump casing when:
1. The pump is being put into service for the
first time.
2. The pump has not been used for a consider-
able length of time.
3. The liquid in the pump casing has evapo-
rated.
Once the pump casing has been filled, the pump
will prime and reprime as necessary.
After filling the pump casing, reinstall
and tighten the fill plug. Do not attempt
to operate the pump unless all connect-
ing piping is securely installed. Other-
wise, liquid in the pump forced out
under pressure could cause injury to
personnel.
To fill the pump, remove the pump casing fill cover
or fill plug in the top of the casing, and add clean
liquid until the casing is filled. Replace the fill cover
or fill plug before operating the pump.
STARTING
Starting procedures will vary slightly depending on
the pump application, type of priming device, and
type of drive. Consult the operations manual fur-
nished with the power source.
Rotation
The correct direction of pump rotation is indicated
by an arrow on the pump body or accompanying
decals. If the pump is operated in the wrong direc-
tion, the impeller could become loosened from the
shaft and seriously damage the pump.
The pump must operate in the direction in-
dicated by the arrow on the pump, or ac-
