Meler MACRO FOAM Series, Instruction Manual, Page: 64 / 88

FOCKE MELER GLUING SOLUTIONS, S.A.
4-30
MELTER OPERATION
Manual feeding
For production needs or if there is any fault in the level detector it is possible
to do manual loading.
In this case the automatic feeder must be in inhibition mode (by pressing for 3
seconds stop button).
Once in this mode you can make a manual loading by pressing the RESET but-
ton over 2 seconds and keeping it pressed. Load contact and reset button LED
will be activated and will remain active until the RESET button is released.
Manual loading mode does not depend on level detector so there is a risk of
overflow.
Turning off the melter equipment
If you need to disconnect the melter equipment:
1. Turn off each pump control card installed in the unit.
2. Turn off the machine switch on the door of the electrical cabinet.
3. Reduce the pressure to 0 using by-pass valve in the case of pneumatic
control.
4. Disconnect the pneumatic power to the applicators and the electrical
power to the control unit programmer, if there is one.
Conditions for good performance
1. The surface tension of the adhesive for the working temperature must be
suitable so that once mixed with the gas, it is able to retain the gas bubbles
in the interior.
2. The setpoint pressure must be such that the pump speed is at least 30 rpm.
3. The gas pressure must not exceed the saturation of the adhesive, that is,
it should not exceed the value from which “spitting” is reproduced in the
application.