Forma Scientific 3158 - Replacing the Blower Motor; Single Units

Forma Scientific, Inc.
7-13
2. Loosen the 1/4-turn fasteners on the front of the control panel and pull the
panel out until the fuse holder in the center of the tray is accessible.
3. Use a fuse puller or a small screwdriver to lift one end of the fuse. Remove
the fuse and discard it.
4. Insert a new 0.3 Amp fuse into the fuse holder.
5. Re-secure the control panel.
6. Connect power to incubator. Turn power switch ON and check operation of
controls.
7.12 REPLACING THE BLOWER MOTOR
a. Replacing the Blower Motor on Single Units
1. Disconnect the unit from the power source.
2. Remove the shelves, duct sheets and blower channel from the incubator
interior.
3. Remove and save the bottom blower wheel located inside the chamber by
firmly pulling it down. Remove the snap ring (if present) from the motor
shaft groove using needle-nose pliers.
4. Remove the four wing nuts that secure the blower mounting plate to the
incubator ceiling.
5. Pull the blower motor assembly down into the chamber area.
6. Remove and save the upper blower wheel/blower blade.
7. Cut the tie wrap(s) securing the blower wires to the blower shield plate.
Note: An extra tie wrap has been provided for securing the electrical
wiring.
8. Disconnect the blower motor electrical connectors and remove the bushing
securing the blower motor wiring.