User's Manual

7 MAINTENANCE
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Figure 7. 2 Position of feeding gear
7.3.2 Maintenance of moving parts
The movement guiding unit of X axis and Y axis is linear guide rail. It is suggest to supplement
perfluoropolyether lubricating grease once every 6 months for the linear guide rail(the left and right lateral
plateneed to be dismounted to supplement perfluoropolyether lubricating grease for Y axis guideway).
The moving parts of Z axis include linear bearing and ball screw. It is suggested supplement
perfluoropolyether lubricating grease (or lithium soap lubricating grease) once every 3 months (the back
lateral plateneed to be dismounted).
Before supplementing grease, wipe up the surface of the moving parts with dust-free cloth dipped in
alcohol, and then evenly apply grease on the surface.
7.3.3 Maintenance of chamber filter screen
Air filter screen is installed in the heating interlayer on the left side of the printing chamber. Screw off the
bolts of the heating interlayer coverplate, and take out the interlayer coverplate to expose the filter screen.
It is suggested to inspect or replace the filter screen once every 12 months.
7.3.4 Maintenance of feeding pipe and cooling pipe
Feeding pipe and cooling pipe, especially the sections inside the printing chamber, work in high
temperature, so it is suggested to replace one of them every 12 months to avoid aging and causing
reduction in flexibility.
As shown in following figure, there are four quick connectors at the position close to the rear in the upper
part of the chamber. They are used to pass through and fix the two feeding pipe and two cooling pipes.
The release cover of the quick connector is located at the rear part of the machine. Open the back plate of
the machine, upward press the release cover of the quick connector, and extract the corresponding
feeding pipe or cooling pipe from the rear, and then place the new feeding pipe or cooling pipe.
Feeding gear