Gorman-Rupp Pumps S4C65-E10 460/3 861279 thru 1142084 - Manual (Page 34)

CONTROL BOXES OM--04136
OPERATION PAGE C -- 2
the relay to cool after tripping before press-
ing the reset.
If replacing the heater pack press the reset
button to set 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
and move the control handle to OFF be-
fore approaching the pump.
D
The liquid level devices (optional equip-
ment) operate in conjunction with the 3-po-
sition switch (HAND-OFF-AUTO) supplied
as part of that option. After the level sensors
and circuitry have been installed, pump op-
eration may be automatically controlled for
filling or dewatering functions (see
LIQUID
LEVEL DEVICES, Section B).
D
The operational warning lights operate in
conjunction with the 3-position switch
(HAND-OFF-AUTO) supplied as a part of
that option. After the level sensors and cir-
cuitry have been installed, pump operations
may be automatically controlled for filling or
dewatering functions.
The green run light is standard equipment
on all the controls and indicates the pump is
running. The light will be energized when
the 3-position switch is in the HAND position
or when the pump is running with the switch
in the AUTO position.
The red motor overheat light (standard
equipment only on some controls) works in
conjunction with a thermostat embedded in
the motor windings. In event of a high tem-
perature condition, the motor is shut-down.
After the motor cools, the device is automati-
cally reset.
The amber seal failure light (standard equip-
ment only on some controls) works in con-
junction with a sensor probe located in the
seal oil cavity of the pump and detects an in-
flux of moisture into the cavity. Should this
condition occur, the pump motor should re-
main inoperative until the problem is cor-
rected.
Always terminate incoming power to the control
box before investigating control box circuitry prob-
lems.
Always terminate power to the control
box before performing service func-
tions.
Power through the control box may be terminated
by moving the control handle to the OFF position,
thereby opening the circuit breakers. This stops
the pump, but
does not terminate incoming power
through the field wiring connected to the control
box.