6
Maintenance
Never try to seal without bags. Don’t set the sealing time to the high grade without trial of the sealing bag.
Otherwise, the polymer cloth will be burned. If some plastics adheres to the polymer cloth, never try to scrape
it off. Slightly reduce the sealing time and seal the bag again. Release the pedal after the yellow lamp is off. It
is very important to remove the bag from one side to the other. The remains of the plastics will be cleared from
the polymer cloth with the bag.
REPLACEMENT OF THE HEATER
Turn off sealer and unplug from the wall. Loosen the screws of the plate pressing the polymer cloth, roll back
the cloth to expose the heater. Loosen the Bakelite boxes at both sides of the heater and take out the screws
on the copper block. The heater can now be removed. Replace it with a new one. The heater should always
be in tension with the function of the spring. The copper block should be replaced if it is oxidized, to ensure
it has a good connection with the heater. Pay close attention when fixing the heater so that the polymer cloth
below is flat (no wrinkles are allowed). The heater must have a excellent isolation. Otherwise the heater will be
Operation
ADJUSTMENT AND USAGE OF IMPULSE SEALER
Connect to 110V power source according to the indication label on the machine. Switch on the power, the red
light will turn on. Adjust the sealing time according to the materials and the thickness of the bags to be sealed.
The sealing time should be adjusted to around grade 1 before sealing. Put the opening of the bag between
the heat sealers, step down on the pedal and the yellow lamp lights. Take out the sealed bag after the yellow
lamp is off. If the seal is not tight enough, lengthen the sealing time. Try sealing the bag several times until it is
sealed well with clearness and no wrinkles. Seal the bag at this measured time and temperature. The cooling
time should not be too short, otherwise wrinkles will be the result. The longer the sealing time, the longer the
cooling time.
Fig. 1 - Diagram
of the control
panel for the
impulse sealer