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63
ASPHAL
T OPERA
TIONS
Asphalt Operations
NOTE: The pump can be stopped and the automatic
tank valve can be closed immediately at any time
during operation by turning the EMERGENCY STOP
switch OFF.
Before turning the EMERGENCY STOP switch back
ON, turn the PUMP SPEED to zero to prevent the
pump from turning.
Suck Back Override
The Suck Back Override feature is now standard
on every machine, and is designed for quick in-cab
switching from BAR CIRC to SUCK BACK mode
while spraying.
When the SUCK BACK OVERRIDE button is
activated, all valves open in SPRAY mode will close,
and the pump will begin sucking back material in the
spray bar at 200 GPM.
The following steps are performed in the cab while
BAR CIRC (Bar Circulate) is selected on the rear
panel Function keypad.
1. Turn the SUCK BACK OVERRIDE switch ON.
2. If complete bar suck back is desired, follow the
instructions for Bar Suck Back, beginning with the
opening of the left bleeder valve. Otherwise con-
tinue to the next step.
3. Press START. The pump will start turning at the
desired circulation rate.
SUCKBACK
When using manual pump control,
RPM changes will affect asphalt
pump speed.
CAUTION
WARNING
To prevent burns, always wear eye protection,
long sleeve shirt, insulated gloves, boots and
long pants outside the boots when working
around the Distributor..
Figure 80 - Suck Back Override