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the amount of soap solution delivered to the foam nozzles.
Increasing the flow results in larger, more frequent foam
drops; decreasing the flow results in smaller, less frequent
foam drops (Figure 6).
Note: A watery marker consistency may be helpful on windy
days.
Pressure relief valve—pull the red tab on the tank cap
outward to relieve pressure in the tank (Figure 6).
Filling the Tank and Adjusting
the Foam Density
Important: Flush the system with clean water after
each use, especially after using hard water. Do not apply
lubricating oils, grease, or other petroleum products to
the compressor motor assembly.
1. Ensure that both the left and right boom switches
located on the console are in the Off position.
2. Pull out on the red pressure relief tab, and remove the
black cap from the tank.
3. Pour the proper amount water into the tank, and then
add foam concentrate through the opening in the top of
the tank according to the manufacturer's instructions.
Important: Extreme pH levels (hardness or
softness) of the water will affect the amount of
foam concentrate needed.
4. Install the cap on the tank and tighten it by hand.
5. For the initial operation, open the foam density
adjustment valve 1/8 to 1/4 turn (Figure 6).
1. Foam regulator
adjustment valve
6. Start operating the marking system and make a test
pattern on the ground.
Note: When you first start the marking system, allow
1 to 2 minutes for the foam to flow through the line.
7. Adjust the foam density adjustment valve to obtain the
desired consistency and spray as normal.
1
2
Figure 6
2. Pressure relief valve
Note: If you leave the foam in the line for more than
2 hours, it may become watery. Before operating after
a break of 2 or more hours, run the machine for 1 to 2
minutes to remove the excess water.
If the foam in the machine is very watery, do the
following:
A. Close the foam density adjustment valve
B. Operate for 2 minutes.
C. Wait 1 minute and then check the consistency of
D. Adjust the foam to achieve the desired consistency.
g023901
4
completely.
the foam.
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