Installation; Operation; Preventative Maintenance - DeVilbiss GTi Operation Manual

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Important: To ensure that this
equipment reaches you in first class
condition, protective coatings have
been used. Flush the equipment
through with a suitable solvent
before use.
1. Attach air hose to connector (13).
1. M i x c o a t i ng
manufacturers instructions
2. Turn needle adjusting screw (10)
clockwise to prevent movement.
3. Turn pattern valve (5) counter-
clockwise to fully open
4. Adjust inlet air pressure to give 2
bar (29psi) at the gun inlet with
the gun triggered.
gauge attachment shown under
Accessories is recommended for
this).
5. Turn needle adjusting screw
counter clockwise until first thread
shows.
6. Test spray. If the finish is too dry
reduce airflow by reducing inlet
pressure. If finish is too wet
reduce fluid flow by turning needle
screw (10) clockwise or reducing
the fluid pressure. If atomisation is
too coarse, increase inlet air
1. Turn off air and coating supply
and relieve
supply lines, or if using QD
system, disconnect from airline
and fluid line.
2. Remove air cap (1) and clean. If
any of the holes in the cap are
blocked with coating material use
© 2003 ITW Finishing Systems and Products

Installation

Operation

m a t e r i a l t o
(pressure

Preventative Maintenance

pressure in the
Recommended hose size 8 mm
bore.
2. Attach fluid supply hose to Fluid
Inlet (17).
3. Air supply should be filtered and
regulated.
pressure. If too fine reduce inlet
pressure.
7. The pattern size can be reduced
by turning adjusting valve (5)
clockwise.
8. Hold gun perpendicular to surface
being sprayed. Arcing or tilting
may result in uneven coating.
9. The recommended spray distance
is 150-200 mm (6"-8").
10. Spray edges first. Overlap each
stroke a minimum of 50%. Move
gun at a constant speed.
11. Always turn off air and fluid supply
and relieve pressure when gun is
not in use.
Air Flow Valve (14)
1. If the airflow valve (14) is fitted
this can be used to reduce the
inlet pressure through the gun.
Screw the Adjusting Knob in to
reduce pressure.
a toothpick to clean. Never use
metal wire which could damage
the cap and produce distorted
spray patterns
3 Ensure the tip of the nozzle (2) is
clean and free from damage.
Build up of dried paint can distort
the spray pattern.
6