Preventative Maintenance - DeVilbiss GTi Serie Manual De Operación

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Important: To ensure that this equipment
reaches you in first class condition,
protective coatings have been use. Flush
the equipment through with a suitable
solvent before use.
1. Attach air hose to connector (13).
Recommended hose size 8 mm
1. Mix coating material to manufacturers
instructions
2. Turn needle adjusting screw (10)
counter-clockwise until first thread
shows
3. Turn pattern valve
clockwise to fully open
4. Adjust inlet air pressure to give 2 bar
(29psi) at the gun inlet with the gun
t r i g g e r e d . ( p r e s s u r e
attachment (15) shown
Accessories is recommended for this)
5. Test spray. If the finish is too dry
reduce airflow by reducing
pressure. If finish is too wet reduce
fluid flow by turning needle screw (10)
clockwise. If atomisation
coarse, increase inlet air pressure. If
too fine reduce inlet pressure.

Preventative Maintenance

1. Turn off air supply and relieve
pressure in the airline, or if using QD
system, disconnect from airline.
2. Empty coating material
suitable container and clean the gun
and cup, preferably in a gun wash
machine.
3. IMPORTANT– the cup must not be
cleaned or rubbed with a dry cloth
or paper. It is possible to generate
a static charge, by rubbing, which
if discharged to an earthed object
could create an incendive spark
© 2003 ITW Finishing Systems and Products
Installation
bore. The hose must be conductive
and electrical
spraygun to earth should be checked
with an ohmeter. A resistance of less
6
than 10
2. Air supply should be filtered and
regulated.
Operation
6. The pattern size can be reduced by
adjusting valve (5)
7. Hold gun perpendicular to surface
being sprayed. Arcing or tilting may
result in uneven coating.
(5) counter- 8. The recommended spray distance is
150-200 mm (6"-8").
9. Spray edges first. Overlap each
stroke a minimum of 50%. Move gun
g a u g e at a constant speed.
under
10. Always turn off air supply and relieve
pressure when gun is not in use.
Air Flow Valve (15)
inlet
1. If the airflow valve (15) is fitted this
can be used to reduce the inlet
pressure through the gun. Screw the
is too
Adjusting Knob in to reduce pressure.
and cause solvent vapours to
ignite. Only use a dampened cloth
or antistatic wipes if
cleaning
into a
Hazardous area.
4. Remove air cap and clean. If any of
the holes in the cap are blocked with
coating material use a toothpick to
clean. Never use metal wire which
could damage the cap and produce
distorted spray patterns
5. Ensure the tip of the nozzle is clean
and free from damage. Build up of
6
bond from the
O is recommended.
additional
is required in a