Monoprice Maker Ultimate 2 User Manual page 38

2. Unplug the cable connecting the nozzle motor.
3. Using a 2.5mm Allen wrench, loosen the screw shown in the image below and to
the left, then unplug the nozzle.
4. Completely unscrew the two hex head screws on the right side, then remove the
motor and cooling fan.
5. Use tweezers to clean the filament debris on the motor gear.
6. Reinstall the motor and cooling fan, then secure them in place with the two hex
head screws removed in step 4 above.
7. Plug the nozzle back in, then tighten the screw loosened in step 3 above.
8. Plug the motor connection cable back into the motor.
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