Gorman-Rupp Pumps PAH3B60-4045H 1493144 and up - Manual (Page 16)

OM-06474 PAH SERIES
OPERATION PAGE C - 2
box to the “MANUAL” position, then press and hold
the “ENTER” button until the engine starts.
Pump speed and operating condition
points must be within the continuous per­
formance range shown on the curve on
Page E‐1.
Automatic Starting
With the float system installed, follow the proce­
dures outlined for manual starting and adjust the
throttle to the desired flow rate. Turn the key switch
to “OFF”, then move it to the “AUTO” position.
The pump will start automatically when the liquid
level in the sump or wet well increases and the
float(s) rise to the “on” position. An alarm will sound
and the control box will begin a countdown display
before the unit starts. When the liquid is sufficiently
pumped down, the unit will automatically shut
down.
The unit can be stopped while in the “AUTO” mode
by moving the key switch to the “OFF” position.
NOTE
If the key switch is moved to the “OFF” position
while in the “AUTO” mode, the engine will stop.
However, the auto‐start process will continue as
soon as the key switch is moved back to the “AUTO”
position.
The control panel is equipped with high oil temper­
ature, low oil pressure, engine overspeed and en­
gine overcrank safety shutdowns. If any of these
problems occur, the engine will not start. When the
problem is corrected, turn the key switch to the
“OFF” position to reset the control.
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.
Routine Operation
Do not operate an internal combustion
engine in an explosive atmosphere.
When operating an internal combustion
engine in an enclosed area, make sure
exhaust fumes are piped to the outside.
These fumes contain carbon monoxide,
a deadly gas that is colorless, tasteless
and odorless.
Adjust the engine speed to achieve the desired
output. Do not exceed the factory set engine speed
and system operating pressure. Do not operate
below the recommended operating speed (if appli­
cable).
Never tamper with the governor to gain
more power. The governor establishes
safe operating limits that should not be
exceeded. The maximum continuous
operating speed for this pump is 2100
RPM.
The engine used on this unit is equipped
with an exhaust filter which reduces the
amount of nitrogen oxide produced while
burning away particulate matter that would
otherwise be expelled into the atmo­
sphere. The resultant soot and ash are
trapped in the filter. The Engine Control
Unit (ECU) will cause the filter to perform a
self‐cleaning function (regeneration) peri­
odically to keep the soot collected by the
filter at manageable levels.
Because the operator can choose to post­
pone the regeneration process, the ECU