Dual DA1504D User Manual download pdf (Page 8)

User’s Handbook

WIWA 600.12 SYSTEMS

SPRAY INSTRUCTIONS

1. After completing the Start-Up Instructions listed previously, the next

step will depend on the distance of the pump to the Sprayer.

2. If the pump is close to the Sprayer – hold the Straight Shot Nozzle

into the Hopper and open the 3/4” Ball Valve fluid line) on the

Straight Shot Nozzle. Adjust the Main Air Regulator until the Pump

strokes slowly and material is exiting the tip. The Sprayer then needs

to adjust the Needle Valve on the Shutdown Device while the

Machine Mechanic adjusts the Main Air Regulator until the desired

spray pattern is reached. Different materials may require different

pump pressures; normal inbound air pressure range is between 20 –

50 psi. The atomization quality of the sprayed material is controlled

by the balance of pressure between the Shutdown Device Needle

Valve and the Main Air Regulator. A finer finish can be achieved by

increasing the Shutdown Device Needle Valve pressure and

reducing the Main Air Pressure Regulator and visa versa. Once a

desirable spray pattern is achieved, the air supply to the wand

should remain constant. The Sprayer can close the 3/8” Ball Valve

on the Shutdown Device to stop the pump and position himself to

begin spraying on the desired substrate.

3. If the pump is far from or inaccessible to the Sprayer – the same

instructions as in (2) above apply, but the Sprayer must first hold the

Straight Shot Nozzle into a waste container instead of the Hopper.

4. It is important to remember that the Shutdown Device Needle Valve

should be turned opened before the Sprayer aims the Straight Shot

Nozzle toward the object being coated and it should be closed

only after the fluid flow has been stopped to Straight Shot Nozzle.

This will help avoid unwanted “spurting” or “spitting” of aggregate

onto the surface being coated.

5. At any time during spray operation, the Sprayer can stop the pump

either by closing the 3/8” Ball Valve on the Shutdown Device or

closing the 3/4” Ball Valve (fluid line) on the Straight Shot Nozzle.

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Dual DA1504D User Manual Page 8