Chapter 5
Maintenance and Repair Notes
ITW Dynatec
UFD Applicator, Manual 40-43, Rev. 6.16
Page 41
5.8 Cleaning of the UFD Nozzle
WARNING
Heed all security advices given in Chapter 5.1.
Maintenance and repair work is only permitted for skilled personnel!
Always wear safety shoes, heat-resistant protective gloves, safety goggles
and protective clothing that cover all vulnerable parts of the body while
working on the heated unit! Risk of injury or severe burns!
Components and adhesive are hot. Take every precaution to prevent the
material and hot surfaces from contacting the skin.
During the purging procedure, hot adhesive can come out of the
Applicator under high pressure. Wear safety glasses, gloves and
protective clothing.
Refer to the drawing in Chapter 7 for more information.
Occasionally nozzles can become clogged with char, residue or other foreign material.
This can result in the decrease or even stoppage of glue flow. Use one of the following
two methods to clean nozzles.
Cleaning by High Temperature Oven
For routine nozzle cleaning, a high temperature oven should be utilized. An optional
Nozzle Cleaning Oven (PN 107307 or 107306) is available from ITW Dynatec.
After several cleanings in an oven, nozzles must be disassembled and soaked in solvent
in order to remove all contaminants. Perform the following procedure as needed:
Cleaning by Nozzle Disassembly
The nozzle must be at operating temperature when cleaned.
1. Stop all motors.
2. Switch the unit voltage-free and pressureless.
3. Guard the unit against unauthorized restarting.
4. Place a heat-resistant catchment
container/underlay under the Applicator. Hot
adhesive may come out!
5. Relieve the adhesive pressure by following the
instructions under Chapter 5.4 “Relieving
Adhesive Pressure”.
6. Remove the nozzle from the module by
loosening its two (or one on UFD Snuffback
Nozzle) mounting screws. See pictures on the
side.
7. Remove the mounting screws and the three (or
four on UFD Snuffback Nozzle) cap screws from
the nozzle. See pictures on the side.
UFD High-Speed
Nozzle’s two
mounting screws
UFD Snuffback
Nozzle’s one
mounting screw
Содержание DynaFiber UFD
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