Gorman-Rupp Pumps PA6A60-4045D 1110032 thru 1115250 - Manual (Page 16)

OM−04402 PA 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
and corrosives. Do not attempt to pump
volatile, corrosive, or flammable liquids
which may damage the pump or endan-
ger personnel as a result of pump fail-
ure.
Pump speed and operating condition
points must be within the continuous per-
formance range shown on the Perfor-
mance Curve in the separate Parts List
Manual.
OPERATION OF ELECTRIC MOTOR
DRIVEN UNITS
Control Box Function
The control box is provided to facilitate operation of
the pump. It contains controls for starting and stop-
ping the pump, and the low voltage circuitry used
for operating the automatic liquid level system.
The control box provides overload pro-
tection and power control. Do not con-
nect the pump motor directly to the in-
coming power lines.
Component Function
The control box contains the following hand-oper-
ated switches and controls:
D The control handle operates the control
box circuit breakers. In the OFF position, the
control handle opens the circuit breakers to
interrupt incoming power through the con-
trol box and prevent pump operation. In the
ON position, it closes the circuit breakers to
permit pump operation. The circuit breakers
will open or trip" automatically in the event
of a short circuit overload current. When
tripped, move the control handle to OFF and
back to ON to reset the circuit breakers.
D The selector switch controls the mode of
operation. In the OFF position, it prevents all
operation of the pump. In the HAND posi-
tion, it allows the pump to run continuously.
In the AUTO position, it allows the pump to
be controlled automatically by the float
switch liquid level control system.
D The reset pushbutton resets the motor over-
load after it has been TRIPPED by an over-
load. The overload relay will trip automatical-
ly if the current drawn by the motor exceeds
design specifications. Allow 10 seconds for
the relay to cool after tripping before press-
ing the reset.
If replacing the heater pack, press the reset
button to set the relay.
NOTE
If the circuit breaker trips, do not reset it immedi-
ately. Wait at least ten minutes before resetting the
control handle back to the ON position. If the over-
load unit continues to trip, operational problems ex-
ist.
The pump motor will restart as soon as
the RESET pushbutton is pressed, un-
less the selector switch is in the OFF po-
sition. Turn the selector switch to OFF