CELTIPOL CN-140, Technical Manual

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32
CN-140 TECHNICAL MANUAL
03-2021
Translation of the original manual
6. Failure in the ends of stroke in change of direction.
The dosing pump system has two limit switches to change the direction of the
pumping unit.
If one of them fails, the pump unit will lock in position near where the end of stroke
has failed.
Check:
a. That there are no foreign bodies preventing the contact of the plate with the
end of stroke.
b. Manually activate the directional valve to rule out any failure in the same.
c. Electrical current in the ends of run.
7. Safety pressure switches:
The hydraulic circuit of each product has a factory set safety pressure switch at a
pressure limit depending on the size of the pumps installed in the machine. When the
limit pressure is reached, the machine stops running and the red light above the
temperature controllers lights up (this light comes on when there is an overpressure -
it is displayed on the pressure gauge - or an over-temperature - an alarm goes off on
the temperature controller -).
Until the pressure falls below the set limit, the machine cannot be restarted by
resetting the push-buttons at the start of each function.
8. Temperature controllers
Product and hose temperature control is established. The machine has a temperature
probe installed in each of the heaters and a probe in the hose that, through their
respective controllers on the control panel, can adjust the temperature according to
customer requirements.
In the temperature controllers, the safety temperature is adjusted which, if at any time
this temperature is exceeded, the Machine stops operating and an alarm is set up in the
temperature controller at the same time that the red pilot light located in the upper
part of the controller where the alarm is created lights up.