Owner`s manual

Maintenance and Service 35
16. Insert the appropriate size tungsten wire into the needle to open a path through the end of
the needle. Do not force the wire through the needle. If there is a hard plug, proceed as follows:
a. Use the drill bit supplied in the cleaning kit to remove the plug by gently rotating the bit by
hand, being careful not to run the bit all the way through the needle.
CAUTION! Do not run the drill bit all the way through the needle as this will increase the size of
the needle opening.
b. Once you have removed most of the material with the drill bit, try again to push the tungsten
wire through the needle.
c. If the wire still does not go through the needle, try again with the drill bit until you can get the
wire all the way through the needle.
"NOTE If great care is taken to maintain the needle, it should last indefinitely.
17. Once you have cleared a path through the needle, flush the needle with cleaning solvent until a
clear stream of solvent flows from the end of the needle.
! If necessary, use a small bottle brush to remove residual fluid. Rotating the bottle brush
counterclockwise while slowly inserting it into the needle will pull out any residual fluid.
18. Inspect the seal and the lower bearing for wear and replace if worn.
19. Reassemble the cleaned cartridge as specified in “
Assembling a Dispensing Cartridge” in the
Operation section.
! Load the cartridge as specified in “Loading a Dispensing Cartridge” in the Operation section.
20. Connect a new feed tube to the cartridge fitting.
21. Prime the pump as specified in “
Priming the Pump” in the Operation section.
DV-8000
Tools and Materials Needed
• Cotton Swabs • Appropriate Personal Protective Equipment
• Cleaning Kit (P/N 196196) • Seal Insertion Tool Set (P/N 197004)
• 1/4-inch Wrench • Cleaning Solution (MSDS recommended)
• Cartridge Fitting (P/N 42-0028) • Elbow Fitting Kit (P/N 63-0064-00)
To clean the DV-8000 Cartridge (see
Figure 5-2):
1. Use the dispensing system position controls to move the dispensing head to the front and center
of the dispensing area.
2. Perform a service shutdown as specified in the applicable dispensing system manual.
3. Open the dispensing system front doors/hatch and locate the pump on the dispensing head.
4. Remove the receiver head and unscrew the syringe from the 90-degree elbow fitting.
5. While holding onto the elbow fitting, pull the blue cartridge release lever to the side and rotate it
forward towards the front of the pump.