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ASPHAL
T OPERA
TIONS
62 Asphalt Operations
Handspray Suckback
WARNING
To prevent burns from hot asphalt when
handspraying, hold the handspray gun in proper
position and watch for other people.
To prevent burns, always wear eye protection,
long sleeve shirt, insulated gloves, boots and
long pants outside the boots when working
around the Distributor.
1. Press the SUCK BACK button on the Rear Control
Panel.
(If so equipped, the
optional
manual tank valve
should be closed).
2. Press START. The pump will start turning at the de-
sired rate, 200 GPM is recommended in AUTO MODE.
3. Move the Master Hand Spray Valve into the Suck
Back position.
4. Open the hand spray valve on the hand spray wand
until a strong vacuum is heard and then close the
valve.
5. If no other operation will be performed, go to the
next step. Otherwise go to the instructions for the
desired operation.
6. To stop the pump in AUTO or MANUAL, press the
STOP button, then move the handspray lever to
OFF position.
7. Flush the pump if necessary before quitting.
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.
WARNING
To prevent possible burns from hot asphalt
spray, do not stand, or allow anyone to stand,
where accidental opening of a valve may cause
contact with hot asphalt.
For asphalts like AC it is recommended that this
procedure be repeated a second time, after which
adding solvent such as diesel fuel through the nozzles
of the hand spray wand will quickly flush the hand
spray wand and hose.
If not equipped with the electric pump, it is helpful
to pour some diesel fuel down the fill line after all
operations are completed. The diesel fuel will remain
in the pump overnight to keep the pump free for the
next morning’s operation.
Ensure that the self flush valve is closed at the end
of this function, or before loading or circulating asphalt
to eliminate chances of inducing asphalt into the self
flush fuel tank.
CAUTION
When using rear pump control, engine RPM
changes will affect asphalt pump speed.
SUCKBACK
WARNING
CAUTION
WARNING