µ-Dimension BST 1200es, User Manual

Page: 50 / 74

50 Maintenance
Dimension BST 1200es / SST 1200 es User Guide
A. Use 7/64 T-Handle Allen wrench to loosen the tip screws
three to four full turns counterclockwise - or until the top of
the screws are flush with the metal cover.
B. Use needle nose pliers to grasp the stainless steel shield
of the tip.
C. Pull the tip shield toward you, then pull down to remove the
tip. Discard the used tip.
D. Repeat for second tip if necessary.
Figure 19: Tip Removal
Inspecting the Teflon Shield
The Teflon shield is designed to prevent build material from
reaching the heater blocks. Inspect the Teflon shield to make sure
that it is able to perform efficiently,
1. Remove the Heat Shield - loosen the 2 Heat Shield retaining
screws (7/64 allen) ( Figure 19 on page 50).
NOTE
There is a teflon washer on each screw - between the back of the
metal cover tabs and the Toggle Assembly. If the retaining screw is
not completely removed from the Heat Shield and the washer is
not damaged, the washer will act as a retainer, holding the screw
to the metal cover.