Gorman-Rupp Pumps PA6A60-4045D 1110032 thru 1115250 - Manual (Page 17)

OM−04402 PA SERIES PUMPS
OPERATION PAGE C − 2
and move the control handle to OFF be-
fore approaching the pump.
D The liquid level system operates in conjunc-
tion with the 3-position switch (HAND-OFF-
AUTO) supplied as part of the system. After
the float(s) have been installed as de-
scribed in INSTALLATION, Section B,
pump operation may be automatically con-
trolled for filling or dewatering functions.
D The green run light 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.
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.
Rotation
The correct direction of pump rotation is indicated
by an arrow on the pump body or accompanying
decals. If the pump is operated in the wrong direc-
tion, the impeller could become loosened from the
shaft and seriously damage the pump.
The pump must operate in the direction in-
dicated by the arrow on the pump, or ac-
companying decals. Reverse rotation
could damage the pump and adversely af-
fect performance.
To check electric motor rotation, remove V-belts,
couplings, or otherwise disconnect the pump from
the motor before checking motor rotation. Operate
the motor independently while observing the direc-
tion of the motor shaft, or cooling 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.
Priming
The pump will begin to prime upon startup. The air
in the suction line will be discharged from the educ-
tor discharge line. Complete priming is indicated
by a positive discharge pressure reading.
If full priming is not achieved, the discharge check
valve may be malfunctioning. If this occurs, shut
down the pump and consult the separate Mainte-
nance and Repair manual for further details.
OPERATION OF ENGINE DRIVEN
UNITS
Before Starting
Check the fuel level and oil levels in the engine, air
compressor, pump bearings and seal housing.
Make sure the pump is level. Lower the jack stands
and chock the wheels, if so equipped.
Make sure the pump is level. Lower jack
stands and chock the wheels, if so
equipped. Use caution when positioning
the skid-mounted unit to prevent damage
to the fuel tank.
Check to ensure that all guards are in place.
Do not operate the pump without guards
in place over the rotating parts. Ex-
posed rotating parts can catch clothing,
fingers or tools, causing severe injury to
personnel.