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29
OPERA
TION
Figure 11. Valve Positions for Handspray Suckback
Suck Back for Hand Spray Operations
When finished hand spraying, set all valves and le-
vers to their positions for handspray suck back.
Turn the “Rotary Actuator” to the “Load/Suckback”
position.
Suck back the asphalt from the handspray hose by
turning the “Return” valve counter clockwise to the
“Open” position.
Open the handspray suckback valve.
Increase the pump speed to approximately 200 GPM.
After approximately 1 minute, crack the handspray
valve on the handspray wand “open”. Suck the hand-
spray wand back for about 2 minutes. If finished hand-
spraying for the day, crack open the handspray valve
with the nozzles submerged in flushing oil. Close the
handspray wand valve and shut off the pump.
Return all of the valves to their normal positions.
Suck
Back
Off
Hand
Spray
Hand Spray Valve Positions
Hand Spray
Valve
Open
4 Way Valve
Load/Suckback
Suction Valve
Closed
Suck Back
Valve
Closed
Handspray
Valve
Suckback
Transfer
Valve
Closed
Transfer Line
Suck Back
Valve Closed
Suckback
Control Cylinder
Closed
Return Valve
Open
Flush Valve
Closed
Butterfly Valve
Cylinder Extended
Butterfly Valve
Open
Содержание Black-Topper Shooter II
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