DAV TECH DAS 90, Руководство по установке и обслуживанию

Страница: 7 / 8

pag
. 7
5.2 Spray setting
Dirty air cap: fluid flows from the piece
> Clean the air cap and the nozzle
> Decrease the atomizing air
Too fluid
> Decrease the fluid pressure
Round cap
Irregular application: Insufficient misting air
> Increase the atomizing air pressure
Poor amount of fluid
> Increase the fluid pressure
Round cap
5 TROUBLESHOOTING
5.1 Problems and solutions
The search for defects in the operation should be performed only by personnel qualified respecting the safety rules
in force.
Manuale DAS 90
7.2 Regolazione della nebulizzazione

Cappuccio aria sporco: il fluido rimbalza dal pezzo
Pulire il cappuccio aria e l’ugello
Diminuire l’aria di nebulizzazione
Troppo fluido
Diminuire la pressione del fluido
Cappuccio rotondo

Applicazione irregolare: Aria di nebulizzazione insufficiente
Aumentare la pressione dell’aria di nebulizzazione
Scarsa quantità di fluido
Aumentare la pressione del fluido
Cappuccio rotondo
DAV Tech Sas Via S. Pio X 6/a 36077 Altavilla Vicentina (VI) 0039 0444 574510 www.davtech.it davtech@davtech.it
13
Troppo fluido
Poco fluido
Fluido
Satellite di fluido
Manuale DAS 90
7.2 Regolazione della nebulizzazione

Cappuccio aria sporco: il fluido rimbalza dal pezzo
Pulire il cappuccio aria e l’ugello
Diminuire l’aria di nebulizzazione
Troppo fluido
Diminuire la pressione del fluido
Cappuccio rotondo

Applicazione irregolare: Aria di nebulizzazione insufficiente
Aumentare la pressione dell’aria di nebulizzazione
Scarsa quantità di fluido
Aumentare la pressione del fluido
Cappuccio rotondo
DAV Tech Sas Via S. Pio X 6/a 36077 Altavilla Vicentina (VI) 0039 0444 574510 www.davtech.it davtech@davtech.it
13
Troppo fluido
Poco fluido
Fluido
Satellite di fluido
With: Sufficient amount of fluid
> Right Valve distance from the card
> Impurities free fluid
> Right pressure regulation
The fan should look like this:
Round cap
SPRAY VALVE DAS 90
PROBLEM POSSIBLE CAUSE SOLUTION
Nothing or little fluid Valve does not receive the command
Check valve (solenoid valve) control. Perform
a manual test.
The pressure of the fluid is too low
or absent.
Check the fluid supply pressure and, if
necessary, increase it.
The nozzle is clogged
Unscrew and clean the nozzle.
The filter is dirty (if present) Wash or replace the filter.
A tube is bent Check the status of the fluid supply pipes
Insufficient drive pressure Check drive pressure (4…6 bar)
Fluid residues present in the system Clean the system with water
Fluid out of the compass O-ring or shaped gasket on the damaged
valve body Replace O-ring or shaped gasket
Fluid flow between valve
body and fixing plate
O-ring on the damaged dam reservoir Replace the O-ring of the hub
The nozzle dries even if
the valve is not piloted
Presence of dirt in the nozzle Clean or replace the nozzle.
The valve opens late Insufficient drive pressure Check drive pressure (4…6 bar)
O-ring on the damaged spike Replace the O-ring on the pin
Splashed irregularly Insufficient spraying pressure
Check spraying pressure
(0,5…2,5 bar)
Dirt in the air cap Clean the air cap
too fluid
fluid
fluid satellite
little fluid