ProJet® x60 Series User Guide Printer Maintenance3dscentral.3dsystems.com 42 All Rights Reserved5/12/136. Slide the Carriage back and forth to distribute the grease evenly over the Top Rail.7. Clean the excess grease off the Top Rail and Carriage.8. Reset the Maintenance Counter in 3D Print.6.3 Piston Screw LubricationFrequency: When prompted to in 3D Print.1. Remove both the rear cover panel of the printer.2. Remove the left (Build Chamber) side panel.3. On the LCD display, select BUILD CHAMBER > LOWER PLATFORM. Hold the Control Knob downand lower the Build Bed platform as far as you can to expose the entire length of the piston screw.4. Assemble the grease gun that is part of your Accessories Kit according to the instructions found in thedocument 09576 Grease Gun Loading Instructions, which is supplied on the software installationmedia shipped with the printer. You can also find these instructions on our Web site at3dscentral.3dsystems.com.5. Look into the left end of the printer, under the build platform, and locate the piston screw.Number Component1 Fast Axis Grease Fitting2 Relief Hole