5
Machine Features
Logic Features:
PUMP MODE Switch
The PUMP MODE switch is used to provide power to the machine.
OFF: The pumps will not operate when pressing the start device.
ON: The pumps will operate when the start device is pressed.
PUMP AIR PRESSURE Gauge and Regulator
The PUMP AIR PRESSURE regulator controls how much air pressure is fed to the air
cylinder, driving the pumps. Turning the center knob of the regulator locks or unlocks
the outer regulator knob. Turning the center knob clockwise will lock the regulator in
place. Turning the center knob counterclockwise will unlock the regulator and allow
adjustment. Turning the outer knob clockwise increases pressure, which permits the air
cylinder to cycle more rapidly and pump more material in a given time. Turning the
outer knob counterclockwise decreases pressure, which limits the air cylinder's cycle rate
and therefore pumps less material in a given time.
The PUMP AIR PRESSURE can be monitored on the PUMP AIR PRESSURE gauge.
Dispense Valve Trigger
This device is used to initiate a pump cycle. Throughout this manual, the Dispense Valve
Trigger will be referred to as the start device.
When pressing and releasing the start device causes the machine to cycle once then stop.
Pressing and holding the start device causes the machine to cycle as long as the start
device is held.
Other Features:
Ratio Check Ball Valve Assemblies
At each pump outlet, after the check valve, is a ratio check ball valve assembly. Each
assembly consists of two ball valves, a tee fitting, a couple of elbows, and some other
miscellaneous fittings to connect them all together. One of the elbows will have a plastic
nozzle threaded to one side. This is the ratio check outlet. The ball valve connected to
this outlet (the lower of the two) is the ratio check ball valve. The other ball valve (the
higher of the two) is the material hose ball valve.
Air Dryer (Desiccant)
Used to feed dry air to material reservoirs to prevent moisture contamination.
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