Chapter 4
Installation & Startup
UFD Applicator, Manual 40-43, Rev. 6.16 Page 29
Special Installation Notes on HiSpeed, Vertical Snuffback, Direct-Air Module
Special Installation Notes on Optional PN 112690, 112440 & 112934 HiSpeed, Vertical
Snuffback, Direct-Air Module (Option Code C,D, G see Chapter Model Designation Guide)
The PN 112690, 112440 & 112934 modules are designed for the solenoid valve to be
connected directly to the module air cylinder. Fittings and tubing are included with the
module assembly.
If alternative fittings or tubing are desired, the recommended tubing is aluminum or
stainless steel, 1/4” OD x 3/16” ID. For best performance, the tubing length should be as
short as practical (recommended length is 2.5” min. to 6” max.). The port threads in the
module are 1/8-27 NPT.
If necessary for clearance, the air cylinder can be rotated to re-position the tube fittings.
Remove the four cap screws securing the air cylinder, and without removing the air
cylinder, rotate to the desired position. Replace the cap screws and torque crosswise,
first to 5 in-lb., then to 20 in-lbs.
Recommended operating air pressure is 70-90 psi.
Operation of Optional Drain Valve
(Option Code A, see Chapter Model Designation Guide)
UFD Applicators with the “A” option are equipped with a drain valve located on the right
side of the Applicator. This drain valve allows residual adhesive pressure to be relieved
prior to maintenance or repair of the Applicator. During Applicator installation, the drain
valve can be relocated to the left side of the Applicator for access, if necessary.
The drain valve consists of a valve body with a rotatable outlet collar that directs the flow
of adhesive. A plug is located inside the body, retained by a snap ring to prevent the plug
from being fully removed.
Operation
1. Ensure that all pumps in the ASU (Adhesive Supply Unit) are turned off. Power down
the ASU or disable the Applicator and preheater zones at the control panel.
Disconnect all electrical cables from the Applicator.
WARNING! HOT SURFACE & ADHESIVE!
The equipmet will still be hot when this procedure is being done.
Use insulated gloves and protective clothing.
2. Place a suitable container under the Applicator to catch adhesive. Using pliers, rotate
the knurled outlet collar of the drain valve so that the exit hole points toward the
container, and away from any personnel. Stand away from the valve while the
adhesive pressure is being relieved.
3. Using a 19mm (3/4”) wrench on the valve body to prevent rotation, insert a 5mm hex
wrench into the plug. Rotate the plug counter-clockwise to allow adhesive to flow
through the valve.
4. If no adhesive flows from the drain valve, do not assume that there is no adhesive
pressure in the system. Always verify that adhesive pressure has been completely
relieved before proceeding with maintenance or repairs. Never remove the snap ring
in the end of the valve, as this would allow the plug to be removed, possibly resulting
in personal injury.
5. After maintenance or repairs are complete, tighten the plug securely. Wipe any
adhesive from the outer surface of the drain valve.
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