CELTIPOL CN-140, Technical Manual

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29
CN-140 TECHNICAL MANUAL
03-2021
Translation of the original manual
I. Gun: 14

Ensure that the product tap is fully open.

Check the cleanliness of the front hole on the mixing chamber.

Check for the extent of cleanliness in the filter grille.

Check the cleanliness of the side hole on the mixing chamber.
II. Hose:

Ensure that the hoses are not blocked.
4. In the event that the hydraulic pressure in the material that is deficient is lower than
normal, we should start to check for possible causes for the obstruction in the furthest
point away from the machine (product feed) and move downstream, starting with the
products tanks:

Check for product in the tanks.

Check the temperature of the material, since an excessively cold material,
especially in the bottom of the tank, will increase the viscosity of the
material and will block the transfer pumps. Conversely, excessive
temperature in the material, on the polio side, will cause irregular properties
in the material.

Check the status of the dosing pumps, paying special attention to determine
if the flash appears in the ascending or descending run. If the flash appears
on the descending run, check the seating of the lower ball. If the flash
appears on the ascending run, check the seating of the upper ball.
In any case, repair works should be carried out as soon as possible. The unit should be open and
in contact with the air as brief a time as possible in order to avoid other problems such as
incoming humidity in the system or crystallization of the isocyanate.
In the event of the unit being exposed to the atmosphere, it will be vital to make it work for
enough time to shift the material that there was in the unit when opened
15
.
14
We should only concern ourselves with the
hydraulic pressure on the side where the material is
lacking. Furthermore, we should bear in mind that
the pressures recorded on both pressure gauges do
not necessarily have to coincide due to the different
products used, different viscosities, etc.
15
Prior to any kind of
handling or repair of the gun,
discharge all the pressures in
the fluid and air.