Owner manual

Operation 4-21
4.5.4 Connections on the Dispensing Head
4.5.4.1 Pneumatic Connections
The pneumatic fittings and hoses supplying pneumatic pressure to components on the dispensing head are
color coded for easy identification. Table 4-7 provides fitting and hose colors with a description of their
use. See Figure 4-9 for connector locations on the dispensing head bulkheads. Refer to the applicable
dispensing valve manual for specific connection details.
Table 4-7 Dispensing Head Pneumatic Fittings and Hoses
Bulkhead
Fitting
Color
Hose
Color
Usage Description
Valve 1
(Figure 4-9a)
Silver Clear Fluid Provides constant air pressure to the fluid syringe.
Green Green Cooler
Air
Provides air for the Thermal Control Assembly on a
DJ-9000 Series Valve in the Valve 1 position.
Blue Blue Valve
ON
On DP-3000 Series Dispensing Valves, pressurizes
actuator that rotates stopcock to fluid refill position.
Toggles with the black Valve OFF pneumatic line.
Black Black Valve
OFF
On DP-3000 Series Dispensing Valves, pressurizes
actuator that rotates stopcock to fluid dispense position.
Toggles with the blue Valve ON pneumatic line.
For DJ-9000 Series Dispensing Valves, provides air
pressure that raises the needle and retracts the ball from
the extension seat during fluid refill.
Valve 2
(Figure 4-9b)
Silver Clear Fluid Provides constant air pressure to the fluid syringe.
Green Green Cooler
Air
Provides air for the Thermal Control Assembly on a
DJ-9000 Series Valve in the Valve 2 position.
Blue
(Front)
Blue Valve
ON
On DP-3000 Series Dispensing Valves, pressurizes
actuator that rotates stopcock to fluid refill position.
Toggles with the black Valve OFF pneumatic line.
Blue
(Rear)
Blue Toggle
Cylinder
ON
Actuates Dual-Action Dispensing Head Toggle Cylinder
to lower Valve 2. Toggles with the black Toggle
Cylinder OFF pneumatic line.
Black
(Front)
Black Valve
OFF
On DP-3000 Series Dispensing Valves, pressurizes
actuator that rotates stopcock to the fluid dispense
position. Toggles with the blue Valve ON pneumatic line.
For DJ-9000 Series Dispensing Valves, provides air
pressure that raises the needle and retracts the ball from
the extension seat during fluid refill.
Black
(Rear)
Black Toggle
Cylinder
OFF
Actuates Dual-Action Dispensing Head Toggle Cylinder
to raise Valve 2. Toggles with the blue Toggle Cylinder
ON pneumatic line.