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Operation
Using the Controls
Foam paddle switch—activates the compressor, generating
a flow of foam and air to the right or left boom section
(Figure
9).
Foam on/off switch—activates the compressor, generating
a flow of foam to both of the boom sections simultaneously
(Figure
7).
Indicator markings—located on the side of the tank; they
indicate the solution level in the tank.
Foam regulator adjustment valve—controls the
consistency of the foam solution. Adjusting the valve controls
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
10).
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
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 of 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
10).
(Figure
10).
8
Figure 10
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.
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
completely.
B. Operate for 2 minutes.
C. Wait 1 minute and then check the consistency of
the foam.
D. Adjust the foam to achieve the desired consistency.
g200674
2. Pressure relief valve
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