5. Check the interior of the build unit and use the explosion-protected vacuum cleaner with soft-brush
nozzle, if needed, to remove the remaining material.
Finish cleaning
1. Tighten the four captive flat screws.
2. Put back and tighten the two Torx 20 screws.
3. Vacuum the area below the cap of the build unit’s loading inlet.
70 Chapter 7 Load material into the build unit