Upgrade Kit Owner manual

2 Upgrading the DP-3000
2 Upgrading the DP-3000
Changing the Motor
This section provides instructions for removing and installing a motor.
CAUTION! The Motor Encoder Assembly is a delicate assembly. Failure to handle the
assembly with care will jeopardize the functionality of the assembly.
Tools Needed
• 5/64-inch hex key • 2-mm hex key
• 3-mm hex key • 1/16-inch hex key
• 2.5-mm hex key
• Loctite Removable Threadlocker #242
®
or equivalent
Removing the Drive Motor
Refer to Figure 2-1, Figure 2-2 and Figure 2-3 for the following procedure.
To remove the drive motor:
1. Move the dispensing head to the front center of the dispensing area.
2. Disconnect the fluid reservoir hose from the pneumatic line.
3. Twist the Luer elbow off of the stopcock.
4. Remove the fluid reservoir from the clip.
5. Disconnect all pump power cables and pneumatic hoses.
6. Remove the pump from the dispensing system.
7. Using a 2.5-mm hex key, remove the three screws from the gear cover.
8. Remove the gear cover.
! The gears will now be exposed.
9. Remove the main cover.
! The motor gear, feed screw gear, and valve control PCA will now be exposed.
See Figure 2-1.
10. Disconnect the red connector from the valve control PCA. See Figure 2-2.
11. Using a 2.5-mm hex key, remove the motor cable clamp.
12. Using a 1/16-inch hex key, remove the set screw from the motor gear.
13. Gently but firmly lift the motor gear off of the shaft, and place it aside.
14. Using a 2-mm hex key, remove the three screws from the motor mount.
15. Gently pull down on the motor, and lift it out of the pump. See Figure 2-3.