Stratasys F123 Series Manual page 209

Customer Replaceable Units
4. Right-side oven blower only: Using a 2.5 mm hex wrench, remove the mounting screws
(2) that secure the center side bezel and remove it from the printer.
5. Disconnect the oven blower motor connector from the I/O board (J39 - right blower, J37 -
left blower).
6. Using a 3 mm hex wrench, remove the mounting screws (5) that secure the blower
assembly to the oven frame, see
Figure 40: Center Side Bezel Mounting Screw Locations
Take note of the wire routing configuration for ease of installation.
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Figure 41.
Right and Left Side Oven Blowers
Page 198