Labconco XPert Filtered Balance Stations 3962622 User Manual

Page 55

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Chapter 6: Maintaining Your Filtered Enclosure

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51

Motorized Impeller Replacement

XPert Filtered Balance System

The motorized impeller must be replaced as a complete unit. When the motorized
impeller is replaced, the capacitor may also be replaced. See Appendix A for
Replacement Parts Diagram. See Figure 6-5 for an isometric view of the motorized
impeller plenum assembly. The HEPA filter rests on top of the motorized impeller
assembly.

Do NOT contact blower wheel while still in motion.

NE PAS être en contact avec la roué du ventilateur tant qu’il est
en marche.

1. Wear appropriate personal protective equipment to decontaminate the filtered

enclosure and then unplug from the electrical outlet.

2. Remove HEPA filter per the HEPA filter removal procedure outlined in this

chapter.

3. Consult the wiring diagram in Appendix C of the manual and disconnect all the

wires of the motorized impeller. Be sure to connect wires on the new motor in
the same way the old motor was wired.

4. Remove four screws in the motor bracket that hold motor bracket to the

supports with the vibration isolation mounts. Remove the motor and bracket.


ATTENTION: High-speed blower. Never operate impeller with
housing off.

5. Replace the capacitor with a new one of equal voltage and capacity.

6. Reassemble the new motorized impeller by reversing the assembly steps.

!

!

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