Preventive Maintenance - DeVilbiss Viper Notice D'emploi

4- Turn the adjusting knob counter clockwise to obtain the desired fluid
flow.
5- Test spray. If the finish is too dry or fine, reduce airflow by reducing air
inlet pressure or by the valve
increase fluid flow using ratchet knob rotating counter clockwise.
6- If the finish is too wet, turn the needle button (25) in clockwise to
reduce the fluid flow, or reduce the fluid pressure.
If the atomization is too coarse, increase inlet air pressure, or reduce fluid
flow.
7- The pattern size can be reduced by turning adjusting valve Fan (13)
clockwise.
8- The spray pattern will give the best results when perpendicular to the
target.
9- The recommended spray distance is 150-220 mm (6 to 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 and clean
down when gun is not in us.

PREVENTIVE MAINTENANCE

Turn off air and coating supply and relieve pressure in the supply lines,
before any maintenance operation.
Tip (5) & needle
Remove the air cap and its retaining ring by unscrewing by
¼ turn counter- clockwise (Fig 1).
Remove the tip and its baffle
clockwise (Fig 2). Unscrew the adjusting needle knob fully in counter-
clockwise rotation and pull out the needle at
the back.
After refitting the needle and before refitting
the nozzle, push the bellows (with the tube
supplied) back in order to put it in contact with
the needle shoulder so as to
make the product passage
free.
SB-E-2-VPR
(13 Atom) screwing it in clockwise, or
(18)
(5) by unscrewing by ¼ turn counter-
13/38
Operator s manual
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