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MELTER OPERATION MA-5052-ENG MACRO SERIES MELTER MANUAL
4. MELTER OPERATION
In this section we will introduce the method for using the melter. Although its
operation is very simple, it should not be used by untrained personnel.
Warning: Improper use may cause damage to the machine or injury and even
death to the person using it.
General information
There are three large groups of components with thermal control in a
hot-melt installation: the fusion unit, the transport hoses and the melter
applicators. All of these are controlled from the front panel of the melter
equipment.
The first large group is the premelter-tank-distributor assembly. The
premelter is the first heated zone for the adhesive before it is melted. It has its
own temperature control but it forms a single unit with the tank, with separate
controls, even though their set point value is the same. The tank receives the
melted adhesive from the premelter and distributes it to the pumps. It has its
own control and is identified on the front panel by the corresponding picture.
Distributors are connected to channels number 1 to 4 with independent set
point values and temperature controls.
The second group is the hose group. These are identified on the front panel
from No. 1 to No. 4 and by a picture of the corresponding hose. Each has its
own set point value.
The third group is the applicator group. These are identified on the front panel
from No. 1 to No. 4 and by a picture of the corresponding applicator. Each has
its own set point value.
The hose and applicator numbers are automatically assigned to the hose
channel they are connected to on the rear or right side part of the melter.
Filling the tank
The tank can be equipped with a low level sensor (optional) that warns when
the level of hot-melt adhesive drops below a third of the tank’s capacity.
The unit will activate the external signal and, if it is connected, the
corresponding warning device.
Warning: Before refilling the tank, make sure that the adhesive is the same
type as that already in the tank. Mixing different types of adhesives can cause
damage to the melter equipment.
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