57
ASPHAL
T OPERA
TIONS
Asphalt Operations
OFF
Handspray Valve Position
Return
Valve
Open
Hand Spray Valve
Closed
4 Way Valve
SUCK BACK
(Keyway in
12 o’clock position)
Tank
Valve
Closed
Master
Handspray
Valves Off
Transfer Valve
Closed
Transfer Line
Suck Back Valve
Closed
Flush Valve
Closed
Suck Back
Valve
Open
Transfer Line
cap on and
secured
Load Line cap
on and secured
Bleeder Valve
is last flip lever
valve on wings
Figure 74b - Valve Positions for Standard Spray Bar Suck Back
Figure 74a - Valve Positions for Variable Width Spray Bar Suck Back
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.
When using rear pump control, engine,
RPM changes will affect asphalt
pump speed.
CAUTION
OFF
Handspray Valve Position
Return
Valve
Open
Hand Spray Valve
Closed
4 Way Valve
Circulate In Tank
Tank
Valve
Closed
Master
Handspray
Valves
Off
Transfer Valve
Closed
Transfer Line
Suck Back Valve
Closed
Flush
Valve
Closed
Suck Back
Valve
Open
Transfer Line cap
on and secured
Load Line cap
on and secured
Bleeder
Valve