Atlanta Attachment Company 1390HCB, Technical Manual & Parts Lists

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Technical Manual & Parts Lists
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There are four major variables for obtaining a good weld.
1. Temperature: The value is set via the control panel. The degrees are expressed in Fahrenheit. Try not
to alter the temperature settings as much as possible. A variation of 5 degrees in Fahrenheit temperature
will change the clarity of welded materials. Always adjust the dwell time first.
2. Time:
The value is set via the control panel. Sealing time is expressed in
0.01 seconds, or 100 equals one second.
3. Pressure: A value that is set by the stroke of the air cylinders from the
factory. Unless you are changing the seal rail system height, leave settings as
they are.
4. Condition of seal bars: upper seal bars black coating is smooth with no
cut or scraps and a dull finish. Lower seal bed smooth with not cuts and a
shiny finish on tape.
Note:
The Machine is configured to operate with two sheets of 3 mill
plastic from the factory. If the thickness changes, you should only
have to adjust the dwell. More Heat and pressure can create
expensive problems later.
Explanation of chart written out below
:
(a) Temperature and Time Correct . The plastic appears melted with small
bubbles and a connecting line between the bubbles. The solder is constant
throughout.
.
(b) Excessive time or temperature . The melted plastic bubble appears
irregularly, several of which are joined together and in some cases bundling
between these portions.
The weld is not constant throughout.
(c) Lack of time or temperature. The plastic melted with small bubbles
appear regularly without union between these parts.
The weld looks constant without proper seal.
Cleaning seal bars : for best performance, seal bars should be kept clean,
clean whenever necessary with a soft cloth dampened with WD-40. Be very
careful not to scratch or disturb the coating on the upper heat seal bar as this
will cause sticking and film buildup and poor seal quality.
Very Important Note:
If you are having issues with a complete seal, (for
example the rear), check for air movement around the machine. A large
fan overhead near the 1390 can cool the seal bar enough to make you
think you need to add heat or pressure to correct the problem . This is not
always the best solution.
Always be aware of your surroundings
before changing any settings.