10
Manual Screw Valve DV-5005DFS /-L
7 Commissioning
After all preparations have been completed and all lines connected,
the valve must still be filled with material. Either a cartridge or a pressure tank with
material line has been connected to the material inlet.
7.1 Fill spindle with material
1. Turn on the air pressure to the barrel to 12 psi for solder paste or lower if using an
adhesive or an epoxy. Do not attach a dispense needle.
2. Now turn on the motor and let it run until material consistently flows out the valve
outlet.
3. Stop the motor and connect a dispensing needle.
4. Switch the motor on again until material is continuously coming out of the
dispensing needle.
7.2 Changing the spindle
Removal:
1. Turn off material feed pressure
2. Remove the material barrel.
3. Loosen the locking screw and open the door.
4. Turn the spindle body approx. 30° to the right and pull it downwards from the
motor shaft.
Installation of a new spindle:
1. Insert new Disposable Path into the Valve Housing. Make sure the Square
Drive of the Motor Shaft captures the Feed Screw Collar.
2. Push the Material Inlet Port of the Disposable Path inside the Housing Grove.
3. Close the Housing Door and tighten the Panel Screw.
4. Refer to Paragraph 7.1 (fill spindle with material) to purge.
8 Troubleshooting
The following list of problems and solutions will improve your dispensing operation.
Most problems can be traced to the dispense material, especially when encountering
problems with solder paste dispensing.
*Excessive up and down or „Z“ motion acceleration and velocity can cause filled materi-
als to separate. Decreasing the Z-axis acceleration and velocity or decreasing the barrel
size will help to prevent this.
VIEWEG
