Gorman-Rupp Pumps 81 1/2P47A-E2 3P 801781 and up - Manual (Page 13)

OM-02165 80 SERIES
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 water
and most water‐soluable herbicides
and pesticides, as well as certain chem­
icals and waste solutions within speci­
fied temperatures and concentrations.
Do not attempt to pump volatile or flam­
mable materials which may damage the
pump or endanger personnel as a result
of pump failure.
Do not install and operate a non‐explo­
sion proof motor in an explosive atmo­
sphere. Install, connect, and operate
the motor in accordance with the Na­
tional Electric Code and all local codes.
If there is a conflict between the instruc­
tions in the manual accompanying the
unit and the National Electric Code or
the applicable local code, the National
or local code shall take precedence.
Pump speed and operating condition
points must be within the continuous per­
formance range shown on the curve (see
Section E, Page 1).
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 pump is self‐priming, but the pump should
never be operated unless there is liquid in the
pump casing.
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.
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 un­
der pressure could cause injury to per­
sonnel.
This pump is not equipped with a plug for filling the
pump casing. To fill the pump, remove the dis­
charge line and add approximately 1 gallon (3,8 li­
ters) of clean liquid. Reconnect the discharge line
and proceed with pump operation.
STARTING
Consult the operations manual furnished with the
motor.