6
Rosco Maximizer 3B Asphalt Distributor 6-9
Operation
2
3
2
4
5
6
7
7
8
6
Left Spraybar in Retracted Position
Figure 6-6
1 - Return Air Line
2 - Valve
3 - Valves activate w/ 1 ft Control Switch
4 - Valves activate as bar extends
5 - Inside End
6 - Cylinder Body
7 - Nozzle
8 - Breakaway Pivot
Valves And Nozzles
Adjustment
1. To adjust the nozzles, lay the Nozzle Alignment
Wrench over a single nozzle and turn the wrench
until the nozzle wrench is at a 90° angle with the
rear of the spraybar. This will give the nozzle the
proper 20° angle for spraying without interference
with the other nozzles (Figure 6-4).
Do not overtighten nozzles. Constant
overtightening will cause the threads inside the valve
to wear, requiring replacement of the outer body of
the valve.
2. For spraybar valve assemblies controlled by the
1 foot control switches, align the components as
follows, (Figure 6-6):
a. Position the valve on the top of each cylinder
so that the nut on the valve is facing the return air
line.
b. Line up the lower air port on the cylinder body
with the “tee” in the air line.
3. For spraybar valve assemblies activated by
extensions, align the components as follows,
(Figure 6-6):
a. Position the end of the valve without the nut
towards the inside end of the bar and parallel to
the bar.
b. Line up the lower air port on the cylinder body
with the “tee” in the air line.
When changing or repairing a
spraybar valve assembly, be sure that all reinstalled
components are aligned properly.
NOTE: The valve on top of each cylinder must be placed
in the proper direction for correct function of the
spray system.
Always check the function of the valve
after servicing and before starting a job. Be sure
there is a proper connection and no leakage.
For a further breakdown of the spraybar valve assembly,
(see Illustrated Parts List (IPL) in Section 10).
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