Chapter 5
Setting-up Operation, Daily Operation
DM55 DynaDrum PP V6, Manual No.21-18, Rev.2.19 Page 39
6. Program the controller (see Chapter 6).
Program temperature set points, alarms, level control, etc., appropriate for your
production.
Heed following advices:
• The maximum operating temperature is 204°C (400°F).
• Use only adhesives recommended by the adhesive manufacturer! Before changing
from one type of adhesive to another (even within the same product line of one
manufacturer), the unit has to be cleaned respectively purged to avoid possible
chemical reactions.
• Set the temperatures of the particular heating zones in the controller according to the
adhesive that is in use. Always keep the temperature range given by the adhesive
manufacturer. Wrong temperature settings could cause the burning of the adhesive
within the system and unsatisfactory adhesion.
• Keep the adhesive tank always closed, so that through the open tank lid no dirt
particles at all (foil residues, dust, etc.) could get into the adhesive system.
The consequences of dirt would be:
• breakdowns
• higher contamination of the adhesive filter,
• the adhesive film formation will be disabled,
• the adhesive film contains those dirt particles,
• the adhesive film tends to tear open.
7. Carry out a drum calibration (see Chapter 6) at the first Bulk Melter startup and each
time when the drum size is changed.
8. Switch the System OFF by pressing the Control button on the Main Screen and the
Control Switch Off.
9. Adjust the adhesive pressure at the pressure regulator.
Verify that operating air pressures are within the following parameters.
• A lower pressure setting may be required with low viscosity materials to prevent
sinking the platen.
• Excessive ram force may “face off” (block) high viscosity materials and starve
(cavitate) the pump. It may also cause material to bypass the seal.
• Operating air pressure: 60-80 psi (4.2 - 5.5 bar)
• Air Inject air pressure: 5 psi (0.3 bar)
• Ram operating air pressure: 20-80 psi (1.4 - 5.5 bar)
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