Sagola MACK 150 Manual De Instrucciones página 35

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Useful tips
Use the lowest spray pressure in the air cap, allowing you to obtain the required finish. Not all
products require the maximum pressure for correct spraying. With lower pressure there is an
additional increase in product transfer.
Pay special attention to the application speed. The thickness of the film deposited may be greater
than planned if the application speed is low, and the opposite is also true.
If the thickness of the layer is very thin, this is due to the fact that the air pressure is excessive for
the amount of product being applied. Reduce the air pressure in the gun in order to ensure that
the thinner in the paint does not evaporate during spraying and that it is not dry when it reaches
the surface to be painted. Increase the amount of product, correct its viscosity or use a larger air
cap in the gun.
If the film is very thick or granulated, this is due to the fact that the amount of product to be
applied is excessive for the pressure used. Decrease the amount of product, reduce its viscosity
or use a smaller air cap in the gun.
If sagging occurs, this is due to the fact that the amount of product to be applied is excessive for
the pressure used, the viscosity is not correct or the application speed is not adequate. Decrease
the amount of product, adjust its viscosity or increase the application speed until the required
finish is obtained.
The spray fan (spray pattern) obtained will depend on the air cap used and on your adjustment. If
you require caps for other applications, contact the Technical Service of SAGOLA S.A.U.
10. Depressurisation and stopping
10.1. Depressurisation
1.- With the unit, hose and gun pressurised, turn the unit's pressure regulator control (No.05
Fig.3) anticlockwise (Minimum).
2.- Pull the spray gun trigger, holding it until no more product comes out of the gun.
3.- Lock the spray gun trigger with the safety latch.
4.- Open the product return key. (No.04 Fig.3)
5.- Turn the pressure regulator (No.05 Fig.3) clockwise until the product FLOWS SMOOTHLY
through the product return Hose (No.03 Fig.3)
10.2. Stopping
Short stop
When stopping for a short period of time that does not pose possible problems with catalysation
or hardening of the product inside the unit and accessories, keep the product suction probe
submerged in the product (if the unit has a gravity cup there is no need to empty it) and apply the
procedure of Depressurisation Disassemble the air cap and dip it in thinner.
Stopping when work is finished
1.- Turn the pressure regulator control. (No.05 Fig.3) anticlockwise all the way (Minimum).
2.- Pull the spray gun trigger, holding it until no more product comes out of the gun.
3.- Lock the spray gun trigger with the safety latch.
4.- Open the product return key (No.04 Fig.3) to then be able to recover the product remaining
inside the unit.
ENGLISH