Labconco FilterMatPortable Exhausters 3970024 - Manual (Page 40)

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Chapter 5: Maintaining Your FilterMate
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Motorized Impeller Replacement
The motorized impeller must be replaced as a complete unit.
When the motorized impeller is replaced, the capacitor should also
be replaced. See Appendix A for Replacement Parts Diagram.
1. Wear appropriate personal protective equipment to
decontaminate the FilterMate and then unplug from the
electrical outlet.
2. Remove filter housing and filters. HEPA filter (if so equipped)
per Bag-In/Bag-Out procedure.
3. Consult the wiring diagram in Appendix B 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 the
motorized impeller.
WARNING: High-speed blower. Never operate
impeller with housing off.
5. Remove motorized impeller from the bracket by removing the
screws and washers holding the motor to the bracket.
6. Replace the capacitor with a new one of equal voltage and
capacity.
7. Reassemble the new motorized impeller by reversing the
assembly steps.
Speed Control Replacement
1. Remove the filters as outlined in this chapter.
2. Remove the two screws holding the speed control using a
Phillips screwdriver. Refer to Appendix A for Replacement
Parts Diagram.
3. Disconnect all wires leading to the speed control. Connect
wires on new speed control in the same position as the old
speed control.
4. Reassemble to the system in the same position and with the
same screws that were removed earlier.
!