Forma Scientific, Inc.
7-15
6. Remove the screws securing the base of the front cover plate from the top
unit. Let cover plate hang on the left side of the cabinet.
7. Locate and disconnect the electrical connectors to the top unit's floor heater.
Slide the floor heater forward and remove it.
8. Remove the duct assembly directly over the blower motor.
9. Gently pull the blower motor assembly down into the chamber area.
10. Remove and save the upper blower wheel/blower blade.
11. Cut the tie wrap(s) securing the wires from the blower motor to the blower
shield plate. An extra tie wrap has been provided for securing the electrical
wiring.
12. Disconnect the electrical connectors to the blower motor.
13. Remove the bushing securing the blower motor wiring.
14. Remove and save the two #6 nuts, washers and nylon spacers that secure the
blower motor. Discard the old blower motor.
15. Remove the snap ring from new blower motor shaft.
16. Install the new blower motor using the #6 nuts, nylon spacers and washers
saved in Step #14.
17. Reconnect the blower motor wires.
18. Install the snap bushing located around the wires from blower motor in the
top of the blower shield plate.
19. Reinstall the new snap ring on the motor shaft groove.
20. Reinstall the lower blower wheel (inside chamber) by pushing the blower
wheel up against the snap ring.
21. Reinstall the upper blower wheel/blower blade.
22. Replace the blower motor assembly, duct work and floor heater into their
original positions.
Caution! Make sure that the vinyl tubing is not kinked.
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