Manual

Operation 15
Using the Air Assist Feature
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NOTE If installed, the co-axial air solenoid valve does not need to be removed when not in use.
To use the Co-axial Air Nozzle Nut (Figure 4-3):
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NOTE Instructions assume that the co-axial air solenoid valve is installed. If not, refer to the
Installation section for instructions. Make sure to first properly drain the fluid lines (see
“Draining the Fluid Lines” in this section).
1. If installed, use the provided torque wrench to remove the standard nozzle nut.
2. Install the co-axial air nozzle nut and nozzle as follows:
a. Install the nozzle by carefully placing it in the standard nozzle nut so that the threaded
portion of nozzle protrudes out of the standard nozzle nut.
CAUTION! Adhere to specified torque limits. The torque wrench clicks when the proper
torque is achieved. Forcefully over-tightening the nozzle nuts will cause
damage. If damaged, replace the nozzle nuts.
b. Using the torque wrench, carefully install the standard nozzle nut by threading it on to the
bottom of the DispenseJet.
c. Install the co-axial air nozzle nut onto the threaded portion of the nozzle using careful
alignment and light finger-tightening to allow room for final adjustment.
d. Using the torque wrench, loosen the standard nozzle nut to allow final installation of the
co-axial air nozzle nut.
e. Position the co-axial air nozzle nut so that the protruding air inlet spout is conveniently facing
in a direction that does not cause the air tubing to interfere with dispensing movement.
f. Using the torque wrench, carefully tighten the standard nozzle nut and the co-axial air nozzle
nut.
3. Install one end of the co-axial air tubing by carefully pressing it onto the air-inlet spout on the
co-axial air nozzle nut.
4. Install the other end of the co-axial air tubing to the air inlet of the co-axial solenoid valve.
TIP It may be easier to install the air tubing to the co-axial air nozzle nut first. This may
prevent the small nozzle from being dropped and lost. The tubing can be used to
manipulate the nozzle nut onto the nozzle.