Tool：
①2.5mm hex wrench
②2mm hex wrench
③1.5mm hex wrench
A. Move the Print Head to a Position Where You Can Easily Operate It
Adjust the print head to a position where you can easily operate it.
1. Select the “Utilities” tab on the screen.
Figure 1 Select the “Utilities” tab on the screen.
2. Select the “Unlock” button on the upper left corner on the screen.
Figure 2 Select the “Unlock” button.
3. Push the print head carrier to move the extruder to a position suitable for operation.
Figure 3 Push the print head carrier to move the extruder to a position suitable for operation.
B. Remove the Right Side Cooling Fan
1. Turn off the printer and cut off the power.
Figure 4 Turn off the printer and cut off the power.
2. Remove the back cover
1）Remove the back cover and remove the 7 screws from it. 6 of the screws require a 2mm hex wrench to remove them and are indicated with a red circle in the image below. One of the screws requires a 2.5mm hex wrench to remove it and is indicated with the green circle in the image below.
Figure 5 Remove the back cover and remove the 7 screws from it.
Figure 6 Remove the back cover.
3. Remove the right side cooling fan.
1）Remove one screw on the side cooling fan assembly with the 2mm wrench.
Figure 7 Remove one screw on the side cooling fan assembly with the 2mm wrench.
2）Remove the two screws on the rear of the right side cooling fan assembly using a 2.5mm wrench, press the latch, and remove the right side cooling fan cable.
Figure 8 Remove the two screws on the rear of the right side cooling fan assembly using a 2.5mm wrench, press the latch, and remove the right side cooling fan cable.
3）Remove the right side cooling fan assembly.
Figure 9 Remove the right side cooling fan assembly.
4）Remove the two screws using a 1.5mm wrench and remove the right side cooling fan.
Figure 10 Remove the two screws using a 1.5mm wrench and remove the right side cooling fan.
C. Install the New Right Side Cooling Fan
1）Prepare the new right side cooling fan, align the air exhaust vent of the right side cooling fan with the empty slot of the side cooling fan cover 2, put the right side cooling fan in place, and tighten the two screws on the assembly using a 1.5mm wrench.
Figure 11 Align the air exhaust vent of the right side cooling fan with the empty slot of the side cooling fan cover 2, put the right side cooling fan in place, and tighten the two screws on the assembly using a 1.5mm wrench.
2）Prepare the assembled right side cooling fan, pass the cable of the right side cooling fan through the empty slot, and put the right side cooling fan in place.
Figure 12 Prepare the assembled right side cooling fan, pass the cable of the right side cooling fan through the empty slot, and put the right side cooling fan in place.
3）Press the buckle, insert the right side cooling fan cable, and install the two screws on the back of the right side cooling fan using a 2.5mm wrench.
Figure 13 Press the buckle, insert the right side cooling fan cable, and install the two screws on the back of the right side cooling fan using a 2.5mm wrench.
4）Install one screw on the right side cooling fan with 2mm wrench.
Figure 14 Install one screw on the right side cooling fan with 2mm wrench.
5）Put the back cover in place and tighten the 7 screws on it. 6 of the screws require a 2mm hex wrench to replace them and are indicated with a red circle in the image below. One of the screws requires a 2.5mm hex wrench to replace it and is indicated with the green circle in the image below.
Note：Put the back cover in place, and install it. Remember to avoid tightening the cables when tightening the screws.
Figure 15 Put the back cover in place.
Figure 16 Tighten 7 screws on the back cover.
D. Check If the Right Side Cooling Fan Runs Normally
1. Find the power switch at the bottom right on the back of the printer and turn on the switch.
2. Adjust the fan speed to check whether the right side cooling fan works properly.
1）Select the “Tune” tab on the screen.
Figure 17 Select the “Tune” tab on the screen.
2）Select “Fan speed”，tune the fan speed from 0 to 100，and observe whether the fan runs normally.
Figure 18 Select “Fan speed”，tune the Fan speed from 0 to 100，and observe whether the fan runs normally.
[15.076-EN.1.0.202206615-Pro3 Series-How to Replace the Right Side Cooling Fan]
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