Spray Technique - WAGNER POWERPAINTER 90 EXTRA Translation Of The Original Operating Instructions

PowerPainter 90 EXTRA
4. Secure the spray gun.
Start-up
Before connecting to the mains supply, be sure that the supply voltage is identical with the value given on the rating
plate.
1. Spray a little oil out of the provided flask into the marked opening (fig. 15, 1). Tip: tilt the device back.
Light household oil can be substituted if necessary.
2. Disconnect the return flow pipe from the suction hose.
3. Place the suction hose (Fig. 15, 2) in the material container and the return line (Fig. 15, 3) in an empty container.
4. Press the red inlet valve pusher to ensure that the inlet valve is free. (Fig. 16)
5. Plug in the power cable.
6. Turn the switch into the PRIME position (vertical).
7. Hold the return line over the empty container and switch the device on.
This will flush out any preservative remaining in the system.
8. Switch the device off again as soon as material emerges from the return line.
9. Fix the return line using the suction hose clips. (Fig. 17)
10. Turn the switch to the SPRAY position (horizontal).
11. Aim the spray gun at a piece of cardboard and switch the device on.
12. Release the spray gun and hold the trigger until the material emerges evenly.
13. Let go of the trigger and secure the spray gun.

Spray Technique

Be sure to follow the Pressure Relief Procedure when shutting the unit off for any purpose.
This procedure relieves the pressure from the spray hose and the gun.
Danger
Be sure that the paint hose is free of kinks and clear of objects with sharp cutting edges.
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It is best to practise on cardboard or a similar surface first of all, in order to check the spray pattern and become accustomed to
using the spray gun.
If the paint sprays evenly, as shown in fig. 18 A, all the setting must be correct.
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If the paint looks stripy after spraying, as shown in fig. 18 B, gradually increase the pressure, or dilute more in 5%
steps (please note the maximum amount of thinner stipulated by manufacturer.)
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The key to obtaining a high quality result is even coating of the entire surface.
Keep your arm moving at a constant speed and keep the spray gun at a constant distance from the surface. The best spraying
distance is approx. 25 to 30 cm between the spray nozzle and the surface. (Fig. 19, A)
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Keep the spray gun at right angles to the surface. This means moving your entire arm back and forth rather than just flexing your
wrist. (Fig. 19, B)
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Keep the spray gun perpendicular to the surface, otherwise one end of the pattern will be thicker than the other. (Fig. 19, C)
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Trigger gun after starting the stroke. Release the trigger before ending the stroke. (Fig. 19, D) The spray gun should be moving
when the trigger is pulled and released. Overlap each stroke by about 30%. This will ensure an even coating.
i During operation the pump switches on and off continuously, in order to regulate the pressure.
This is normal and is not a malfunction.
Unclogging the Spray nozzle
If the spray pattern becomes distorted or stops completely while the gun is triggered, follow these steps.
Do not attempt to unclog or clean the nozzle with your finger. High pressure fluid can cause injection injury.
Danger
1. Release the trigger and secure the gun. Rotate the reversible nozzle arrow 180º so that the point of the arrow is toward the
rear of the gun. (Fig. 20).
Under pressure, the nozzle may be very difficult to turn. Turn the switch to the PRIME position (vertical) and pull the
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trigger. This will relieve pressure and the tip will turn more easily.
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