Training Guide Course No. 196514
Level 2 Maintenance, X-1000 Series Dispensing Systems 3-58 P/N 196515 (Revision A)
Exercise Sheet 3-8-9
Cleaning the DJ-2000 (Continued)
18. If adhesive appears on the needle within 0.25 mm (0.1in.) of the upper body,
place the O-ring removal tool in the center of the U-cup seal, and lift it out.
Inspect the needle for excessive wear. Discard the U-cup seal, and obtain a
new one if necessary. When you replace the needle, you must replace the
extension as well.
19. Use the spanner wrench to loosen and remove the syringe luer lock from the
lower body.
20. Use a 0.050-inch hex key to remove the purge screw from the lower body.
21. Wipe the purge screw with a Kimwipe tissue dipped in solvent.
22. Use a cotton swab to push excess fluid out through the ports of the extension,
lower body, and syringe luer lock.
23. It may be helpful to plug the syringe luer lock hole during this step to force all
of the fluid out of the inner port located next to the seal.
24. If fluid has entered the upper body, clean it with a cotton swab dipped in
solvent.
25. Submerge the extension, lower body, and syringe luer lock in a solvent bath.
26. If an ultrasonic bath is available, submerge the extension, lower body, and
syringe luer lock in it as well.
27. A spray solvent may be useful to force the fluid out of hard-to-reach places
inside the extension and lower body. If fluid has cured inside one of the parts,
it may be necessary to submerge the part in solvent overnight.
28. Remove the extension from the solvent and use a cotton swab to wipe out the
inner surfaces. Use a flashlight to check for any signs of fluid in the bottom of
the extension.
29. Using mini cotton swabs dipped in solvent, wipe between the grooves at the
bottom of the extension.
30. Use a Kimwipe tissue to wipe all exterior surfaces of the extension clean.
31. Remove the syringe luer lock and lower body from the solvent and wipe each
with a cotton swab or Kimwipe tissue.
32. Use mini cotton swabs dipped in solvent to clean the fluid from around the
lower body seal.
33. You may optionally use an air gun to blow excess solvent and adhesive from the
fluid paths on the extension and lower body onto a tissue.
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