Rosco Maximizer 3B, Operation And Service Manual

Page: 87 / 364

6
Rosco Maximizer 3B Asphalt Distributor 6-31
Operation
7. Remove the spray wand and hose from its storage
position.
GRIP
GRIP & SPRAY VALVE
(Shown in the open position)
Load Line and Transfer Line
Figure 6-22
8. Hold the spray wand firmly by the hand grips ( Figure
6-22 ). The grips will remain cool while the hot
asphalt flows through the wand.
9. Be sure that the area is free of bystanders to
prevent possible injury from spray or splatter.
10. Be sure that you have a firm grip on the wand. Open
the combination Grip & Spray Valve on the wand.
Adjust pump speed to desired pressure.
11. Direct the wand to the spraying area. Use long
sweeping arcs with the wand to evenly distribute the
asphalt.
12. When spraying is complete, use the Rear Controller
to reverse the pump and draw the excess asphalt
from the spray wand and its hose. Then draw some
clean-out solution into the hose to help prevent any
material from setting up in the hose during storage.
13. Close the Handspray Valve and the Grip & Spray
Valve. Place the wand back in its storage position.
14. Set the Plus One Controller Mode Selection button
to TANK CRCLT (Tank Circulate.)
Handspraying
This section explains the procedure to be followed when
hand spraying asphalt (
Figure 6-20 ). Review these
instructions and follow them to insure the safety of the
operator and to maintain a safe working environment.
1. Turn the Plus One Controller Master switch ON to
activate the system, ( Figure 5-2,1 ).
2. Set the Plus One Controller Auto/Manual selection
to MANUAL.
3. Set the Plus One Controller Pump priority selection
to REAR.
4. Push the Spraybar Master switch UP to the BAR
CRCLT position.
DO NOT SMOKE around the machine.
Fuel, asphalt material and their fumes can explode
when exposed to flame or heat from smoking or
other sources.
Contact with hot asphalt can cause
severe burns. Always wear protective clothing,
gloves and a face shield.
5. Turn the Mode Selection button to one of three
modes to handspray:
• Handspraying ( Figure 6-20 )
• Handspray / Unload Mode (( Figure 6-23 )
•
Handspray Mode (Spray / Bar Circulate)
((
Figure 6-24
)
NOTE: When the operator uses the TANK CRCLT mode
to handspray, no asphalt will reach the spraybar
while the handspray operation is being used.
This is the preferred mode.
Load Line and Transfer Line
Figure 6-21
6. Open the Handspray Valve ( Figure 6-20,10; Figure
6-21 ).
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