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the mains supply. Aim the spray gun at a piece of scrap material and operate the trigger switch
until paint is spraying. Adjust the output control (2) until the required volume of paint is
spraying. Turn the output control in a clockwise direction to reduce the flow and anti-clockwise
to increase the flow. Adjustment of the output control will affect the spray pattern. A poor spray
pattern will concentrate the paint in the centre of the spray and give a blotchy finish. A good
spray pattern will give even distribution of paint throughout the pattern.
Spraying techniques
Fig. D
To obtain the best results, keep your spray gun level and parallel to the surface at all times.
Keep the nozzle 25 - 30 cm from the surface and spray evenly from side to side or up and
down. Do not spray at an angle as this will lead to paint runs on the surface. Use smooth and
even strokes. When spraying large areas, using a criss-cross pattern as shown.
Fig. D
Fig. E
Never start or stop the spray gun while it is aimed at the surface to be
sprayed. Evenly control the speed of movement of the spray gun. A fast
speed of movement over the surface will give a thin coat and a slow
speed will give a heavy coat. Apply one coat at a time. If a further coat is
required, make sure you observe the manufacturers drying time
recommendations before applying a second coat. When spraying small areas, keep the output
control on a low setting. This will avoid using too much paint and prevent overspray. Where
possible, avoid stopping and starting when spraying an object. This can lead to too much, or
not enough paint being applied. Do not tip the spray gun to more than 45°.
4. MAINTENANCE
Fig. E