Page 6-6 Maintenance
Revised 10/14
ITW Dynatec
D15/D25/D45 V6 D CL ASU Manual #20- 63
2. Reduce the ASU’s pump pressure to zero.
Note: the hose used in the following process is merely f or the convenience of depositing flushing
fluid. This procedure does not have to be repeated for each hose in the system.
3. Use a 11/16” wrench to disconnect one of the supply hose’s adhesive feeds from its applicator
head, while holding the applicator’s fitting. Do not disconnect the electrical power to the head
(since that would disable the pump). Put the hose in a secured position within a container which will
catch the used flushing f luid.
4. Add flushing fluid to the hopper and allow approximately fifteen minutes for it to reach hopper
temperature. Carefully stir the flushing fluid to mix with any adhesive remaining in the hopper.
5. Slowly increase the pump pressure. Pump about half of the fluid through the hopper, pump and
adhesive supply hose into the flushing container.
6. Reduce the pump speed to zero.
7. Add new adhesive to the hopper and allow it to reach application temperature.
8. Slowly increase motor speed to the pump.
9. Actuate each of the heads until all the flushing fluid is removed and a steady stream of new ad-
hesive flows.
10. Remove the output filter and replace the basket. Install a new o-ring on the filter nut (lubricate
the new o-ring with o-ring l ubricant PN 001U002 prior to installation) and tighten the brass nut.
11. R e-adjust the pump speed for the desired flow.
12. Re-fill the hopper with adhesive. The system is now ready for production.
WARNING HOT ADHESIVE
Avoid splashing the flushing fluid from the end of the hose.
WARNING HOT ADHESIVE
Do not set hopper temperature too high or fluid could boil and splash.
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