Gorman-Rupp Pumps 03F3-B 463273 and up - Manual (Page 14)

OM-01189 0 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 petro­
leum products or other clean liquids
that do not contain large entrained sol­
ids. Do not attempt to pump liquids
which may damage the pump or endan­
ger personnel as a result of pump fail­
ure.
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.
When installed in a flooded suction application,
simply open the system valves and permit the in­
coming liquid to evacuate the air. After the pump
and piping system have completely filled, evacu­
ate any remaining air pockets in the pump or suc­
tion line by loosening pipe plug or opening bleeder
valves.
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.
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
Rotation
The correct direction of pump rotation is indicated
by an arrow on the pump body, and on the accom­
panying decal. If the pump is operated in the
wrong direction, the impeller could become loos­
ened from the shaft and aseriously damage the
pump.
If an electric motor is used to drive the pump, re­
move V‐belts, couplings, or otherwise disconnect
the pump from the motor before checking motor
rotation. Operate the motor independently while
observing the direction of the motor shaft, or cool­
ing fan.
If rotation is incorrect on a three‐phase motor, have
a qualified electrician interchange any two of the
three phase wires to change direction. If rotation is
incorrect on a single‐phase motor, consult the liter­