8
TO SHUT DOWN
To prevent concentrate from drying in the foam passages the following is
recommended. While still connected to water supply, remove Circle
Cotters and Pull Pins. Remove Control Unit from tank. Attach the Cap
directly to the Quick-Connect on the Control Block. Turn the valve half way
on till the discharge is foam free. This will back flush a small amount of water
through the foam passage. Rotate the Percentage Knob back and forth to
make sure all foam passages are flushed.
INSTALL CAP
ROTATE
OPEN SLIGHTLY
PULL
CLEAN
UNSCREW
#1
#2
#3
#4
#5
TO CLEAN OUT IF PLUGGED
Remove screw #2, spring #3, and knob #4. Inspect the
underside of the knob. Make sure the foam passages are
clear. Do not scratch the flat face of the knob. Inspect the 2
holes in the top of the Control Block #5. If they are plugged,
pull pins #1, remove Block Assembly and clean out Pickup
Tube and holes.
6.7 SHUT DOWN AFTER USE (FLUSHING)
PRO/pak should be flushed with water after each use to prevent foam concentrate from drying out inside
of the Control Block and Percentage Knob.
1) Reduce pump pressure to 100 psi or less.
2) Remove the nozzle and/or hose from the quick-connect on the front of the Control Block.
3) Remove the Circle Cotters and pull out the two Pull Pins that hold the Control Unit to the tank.
4) Pull straight up to remove the Control Unit and Pickup Tube from the tank.
5) Make sure the Percentage Knob is NOT in the OFF position.
6) Install the Cap on the outlet of the Control Block.
7) Turn the Flow Control valve until a trickle of clean water is flowing out the end of the Pickup Tube.
8) Turn the Percentage Knob back and forth to make sure all foam passages are flushed.
9) Shut off water and reinstall the Control Unit on the tank and insert the Pull Pins and circle cotters.
10) Remove the Cap.
The exterior of the PRO/pak can be washed off with the hose or straight stream nozzle with the
percentage knob in the OFF position.
6.8 STORAGE
The PRO/pak can be stored with foam concentrate in it.
S
is recommended
the PRO/pak is
(See figure 6.8)
Make
sure the control block and valve assembly is mounted on the
tank and the fill port is securely closed to prevent evaporation.
torage in the upright position
to avoid foam
leaking when
not in use.
Figure 6.8
PRO/pak shown placed in a U-B
mounting bracket in an upright position.
