3D Systems CubePro Original Instructions Manual page 14

19. Place cartridge bay2 on top of the inner floor. Insert the four (4) 2.5
mm hex head screws through the lower hinges and the inner floor and
attach the four 7 mm nuts. Tighten the nuts.
NOTE: Proceed to step 21 if no other parts are being
replaced.
20. Secure the cartridge sensor assembly to the bottom of cartridge bay 2
by inserting and tightening both (2) 2.5 mm hex head screws.
CAUTION: Do not over-tighten the screws. Over-tightening
the screws could damage the cartridge sensor and void the
manufacturer's warranty.
21. Carefully tilt the inner floor at an angle and place it into the printer.
CAUTION: As you rotate the inner floor horizontally, make
note of the position of the interior heater assembly.
3D Systems, Inc. 13
Bottom of Inner Floor