Trainee Guide TR-L2-M2000
Level 2 Maintenance Training – M2000 Dispensing Systems 4-2-33 P/N 73-0018-00 (Revision B)
Information Sheet 4-8-10
DJ-2000 Troubleshooting (Continued)
G. Fluid Not Escaping Through Nozzle
Possible Cause Recovery
1. Micrometer or Preload screw is
tightened all the way down
1. Adjust the Micrometer to the proper setting.
2. Cutout windows in extension
not aligned with fluid ports in
the lower body
2. Perform Disassembly and Cleaning procedure in Valve
Operations Manual. Check that cutouts are aligned.
3. Fluid air pneumatic or main air
regulator not connected
3. Check fluid air and main air pneumatics; tighten
connections if necessary.
H. Fluid Leaking Through Hole In Extension While Not Dispensing
Possible Cause Recovery
1. Air piston seal may be worn
out, damaged, or may have
slipped out of position
1. Replace or adjust air piston seal. Refer to “Replacing
the Air Piston” and “Adjusting the Air Piston” in DJ-2000
Operations Manual.
2. Extension seat may be broken
2. Replace needle and extension. Refer to DJ-2000
Operations Manual.
I. Fluid Leaking Through Weep Hole On Sides Of Upper Body
Possible Cause Recovery
1. Worn needle
1. Inspect the needle for wear and replace if necessary.
Refer to “Replacing the Needle and Extension” in Valve
Operations Manual. (Excessive wear will appear as a
polished, indented band around the middle of the
needle, where it meets the U-cup seal.)
2. No lower seal or damaged seal
2. Install a new seal using the following steps:
Refer to the procedure “Cleaning the DJ-2000” in DJ-
2000 Operations Manual.
Complete the procedure “To remove the DJ-2000 from
the dispensing system.”
Follow the procedure “To disassemble and clean the
DJ-2000” through Step 16. (You can skip Step 4, the
nozzle cleaning process.)
Follow the procedure “To reassemble the DJ-2000.”
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