22
Control Pro 250 M
GB
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. Disconnect the return hose from the suction hose.
2. Place the suction hose (Fig. 11, 1) in the material container and the return hose (Fig. 11, 2) in an empty container.
3. Press the red inlet valve pusher to ensure that the inlet valve is free. (Fig. 12)
4. Plug in the power cable.
5. Turn the switch into the PRIME position (vertical).
6. Hold the return line over the empty container.
7. Switch the device ON by turning the pressure regulator slowly into position 2.
8. Switch the device off (pressure regulator in position 0) again as soon as material emerges from the return line.
9. Fix the return line using the suction hose clips. (Fig. 13)
10. Turn the switch to the SPRAY position (horizontal).
11. Hold the spray gun at the edge of an empty container. (Fig. 14)
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.
14. Place the nozzle holder on the spray gun (Fig. 15, A ) and rotate it into the final position (Fig. 15, B), in order to fix it.
15. Insert the nozzle with the tip facing forward. (Fig. 16)
Spray Technique
Danger
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.
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.
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If the paint sprays evenly, as shown in fig. 17 A, all the setting must be correct.
If the paint looks stripy after spraying, as shown in fig. 17 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. 20 to 25 cm between the spray nozzle and the surface. (Fig. 18, 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. 18, 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. 18, C)
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Trigger gun after starting the stroke. Release the trigger before ending the stroke. (Fig. 18, 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.
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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.
Danger
Do not attempt to unclog or clean the nozzle with your finger. High pressure fluid can cause injection injury.
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. 19).
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Under pressure, the nozzle may be very difficult to turn. Turn the switch to the PRIME position (vertical) and pull the
trigger. This will relieve pressure and the tip will turn more easily.
2. Turn the switch to the SPRAY position (horizontal).
3. Unlock the gun and squeeze the trigger, pointing the gun at a scrap piece of wood or cardboard. This allows pressure in the spray
hose to blow out the obstruction. When the nozzle is clean, material will come out in a straight, high pressure stream.
