Training Guide Course No. 196514
Level 2 Maintenance, X-1000 Series Dispensing Systems 3-54 P/N 196515 (Revision A)
Exercise Sheet 3-8-7
Disconnecting the DJ-2000
Tools and Materials Needed:
 Spanner Wrench
 Torque Wrench
1. Disconnect the solenoid cable on the DJ-2000 from the dispense head.
2. Disconnect the pneumatic hoses (jet pressure and fluid pressure) from the
dispensing head manifold.
3. Disconnect the DJ-2000 heater cables from the dispense head.
4. Loosen the syringe thumbscrew and remove the syringe from the syringe
bracket on the dispensing head.
5. To Use your fingers to loosen the micrometer lock nut.
6. Turn the outer micrometer collar approximately five turns counterclockwise to
loosen it.
7. It is important to loosen the micrometer/Preload assembly when disassembling
the pump, or you risk damaging the needle and extension seat during
reassembly. If you do not loosen the micrometer/Preload assembly, the spring
tension may force the needle through the extension seat.
8. Use the spanner wrench to loosen the Preload lock nut and turn the Preload
screw until the Preload screw turns freely and there is no tension on the spring.
9. You will feel the spring release.
10. Using the torque wrench, remove the nozzle from the extension.
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