Gorman-Rupp Pumps 62 1/2D1-CH23 S/G 1211015 and up - Manual (Page 12)

60 SERIES OM--05171
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 clear
water in high pressure distribution. Do
not attempt to pump volatile, corrosive,
or flammable liquids which may dam-
age the pump or endanger personnel as
a result of pump failure.
Never tamper with the governor to gain
more power. The governor establishes
safe operating limits that should not be
exceeded.
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).
Exhaust Primer
Since this pump is not self-priming, it is equipped
with an exhaust primer assembly (Figure 1).
HANDLE
GAS COCK
Figure 1. Exhaust Primer Assembly
The exhaust primer utilizes engine exhaust gases,
directed through a venturi, to create a vacuum and
draw air out of the suction line and pump casing.
The exhaust primer is capable of priming a pump
with a maximum priming lift of 15 feet (4,6 meters)
within 90 seconds; less time will be required for
priming at a lesser lift. If the pump does not prime in
a reasonable length of time, check the suction line
for leaks.
To prime the pump, close the throttling valve in the
discharge line.
Close the exhaust primer handle (see Figure 1),
and open the cock in the priming line. Consult the
starting instructions in this manual as well as the
engine operating manual, and start the engine.
Operate the engine at maximum governed speed
and allow the pump to prime until liquid flows con-
tinuously from the exhaust primer nozzle. When
the pump is fully primed, open the exhaust primer
handle, and close the cock in the priming line.
Once fully primed, reduce the engine speed and
partially open the discharge throttling valve. The
discharge line should be filled slowly to prevent
damage to the piping, gaskets, and other devices,
resulting from the initial shock of liquid filling the
lines. When the discharge line is completely filled,
adjust the discharge throttling valve to the desired
flow rate.
STARTING
Consult the operations manual furnished with the
engine.
Attach the fuel line to the quick-connect fitting lo-
cated on the engine. Position the portable fuel tank
at the same level as the pump, or slightly higher.
Squeeze the priming bulb until the fuel can be seen
in the transparent fuel line at the carburetor inlet.
The transparent fuel line need not be completely
full. Fuel will be pulled into the carburetor while
cranking the engine with the choke on.
Set the ignition toggle switch to the ON position.