OM-05514
SUPER T SERIES
OPERATION
PAGE C - 7
Pump Vacuum Check
With the pump inoperative, install a vacuum gauge
in the system, using pipe dope on the threads.
Block the suction line and start the pump. At oper
ating speed the pump should pull a vacuum of 20
inches (508 mm) or more of mercury. If it does not,
check for air leaks in the seal, gasket, or discharge
valve.
Open the suction line, and read the vacuum gauge
with the pump primed and at operation speed.
Shut off the pump. The vacuum gauge reading will
immediately drop proportionate to static suction
lift, and should then stabilize. If the vacuum reading
falls off rapidly after stabilization, an air leak exists.
Before checking for the source of the leak, check
the point of installation of the vacuum gauge.
STOPPING
Manual Stopping
In the manual mode, reduce the throttle speed
slowly, and allow the engine to idle briefly before
switching the HAND‐OFF‐AUTO switch to `OFF'.
If the application involves a high discharge
head, gradually close the discharge
throttling valve before stopping the pump.
After stopping the pump, close and lock the control
panel cover, or disconnect the positive battery
cable to ensure that the pump will remain inopera
tive.
Automatic Stopping
In the automatic mode, the pump will stop when
the liquid in the wet well or sump lowers and acti
vates the “Off” float switch(s) or “Off” setpoint
stored in the optional EPS. The pump will restart
automatically when the liquid rises and activates
the “On” float switch(s) or “On” setpoint stored in
the optional EPS.
Safety Shutdown System
The unit is equipped with a safety system to auto
matically shut down the engine under certain con
ditions. The engine will automatically shut down:
1. If the engine exceeds its safe operating tem
perature.
2. If the engine oil pressure drops below design
limits.
3. If the engine fails to start within a pre‐set peri
od of time.
4. If the engine speed exceeds the safe operat
ing range.
5. If the engine V‐belt breaks.
Lights on the control panel will indicate which of the
safety features has caused the engine to shut
down.
Should any of the safety features cause the engine
to shut down,
the cause must be determined and
corrected
before putting the unit back into service.
The engine
will not
restart
until the keyswitch has
been returned to the `OFF' position for at least 10
seconds.
All safety shutdown features are pre‐set at the fac
tory for optimum performance and safety;
do not
attempt to adjust these settings.
Never disconnect any of the safety shut
down features; this will void the warran
ty and could result in serious damage to
the unit and/or injury to personnel. Safe
ty shutdown features are pre‐set at the
factory; do not attempt to adjust any of
the settings. Determine the cause of
shutdown before
putting the unit back
into service. Consult the factory for ad
ditional information.
OPERATION IN EXTREME HEAT
The safety shutdown system will automatically
stop the unit if engine operating temperature ex
