-2- USE INSTRUCTIONS TFS 100
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3.3 ELECTRICAL CIRCUIT
Check that the electrical tension corresponds to the characteristics of the
machine (see characteristic plate).
Check the existence of NEUTRAL and EARTH in the supply if connected to
400V. If there is a 230V connection, NEUTRAL will not be used.
Highest tolerance in tension variation: 10%.
Check the spinning sense of all the engines included those in vacuum pumps.
3.4 VACUUM CONNECTION
(Only if moulds are prepared to carry out this function).
The connection of the pump to the machine is made by means of strengthen
plastic hoses. Long lines as well as bends must be avoided as they reduce the final
level of vacuum.
For the products that have high levels of moisture, you must use a non
emulsifier oil in the vacuum pump. If you do not use this oil, you will have to include a
decanting device previously to the pump in order to eliminate water.
Check the spinning sense of pump motor.
3.5 PNEUMATIC CONNECTION
(Just when there is not air compressor).
The compressed air net must be able to supply the necessary pressure and
flow (6 - 7 Kg/cm2 and 250 l/min).
Minimum pressure = 6 bar. If this pressure decreased during machine
operation, problems would occur.
Set the pressure regulator of the maintenance group. In systems with high
water condensation (low room temperature), it would be a good idea to install a
decanting device in order to avoid possible breakdowns.
3.5.1 AIR TREATMENT
The air used in the machines OPTIMA must be dry and not contain any oil. This
is why we recommend to check the compressed air installation (there must be a filter to
eliminate moisture and air impurities) before connecting the machine.
The air filter at the inlet of the machine eliminates small impurities and moisture
in the air, but the air must be dry and filtered at the outlet of the compressor.
The inlet filter of the machine must be bled every time it is full with water.
When forming is made with air, air moisture can damage the pneumatic circuit
and air impurities can make the tray look dirty.
Purge the condensed water from the air deposit when switching off the
machine, or every 8 hours.
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