ITW Dynatec
Chapter 5
Maintenance and Repair Notes
Page 34
UFD Applicator, Manual 40-43, Rev. 6.16
5.5 Replacement of the Built-in Filter
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.
The applicator must be at operating temperature.
Procedure for Basket-type Filter (Filter Codes A & B):
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. Unscrew and remove the filter
nut.
7. With needle nose pliers, pull the
filter basket out of the manifold.
8. Replace the O-ring on the filter
nut. Apply O-ring lubricant (PN
N07588) to the new O-ring.
9. Apply a coat of anti-seize to the
threads of the filter nut.
10. Re-install the filter basket and
the filter nut. Tighten the filter
nut until it is seated firmly, taking
care not to cut the O-ring.
Mounting screw
Nozzle
Filter
Basket
O-ring
Filter Nut
Lock Nut
Stroke Adjustment Screw
Optional Drain
(Purge) Valve