HP Designjet 3D Printer series - Manual (Page 46)

42
M
aintenance
Figure 39 Head cover tab locations
9. Remove tips:
a. Use 7/64 T-Handle Allen wrench to loosen the heater block
screws three to four full turns counterclockwise - or until the top of
the screws are flush with the metal cover. DO NOT remove the
screws entirely. See Figure 40.
Figure 40 Tip Removal
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
from the heater block. Discard the used tip. See Figure 41.
Press tabs in to remove
head cover Head cover
Loosen but do not
remove heater
block screws
Loosen but do not
remove heater
block screws