Stratasys J850 User Manual page 114

Stratasys J850/J835 User Guide
Important
If the seals are not removed with the head, they are probably stuck to the
print block housing. If so, remove them.
Installing the New Head
17. Place four (4) O-ring seals in the replacement head (see Figure 4-122 on
18. Position the head in the print block, making sure that the location pins are in
19. Tighten the upper and lower screws that secure the print head in the print
20. Insert the driver card into its socket, and secure the card.
21. Lower the protective cover and tighten the screws to secure it.
DOC-18001 Rev. N
Figure 4-123 Making sure the O-rings are not stuck to the print block
the previous page).
place.
Note: Make sure to insert the head with the contacts on the driver card
facing the print block.
block (see Figure 4-121 on the previous page).
Note: Hand-tighten these screws. To avoid over-tightening, do not use a
hex (Allen) key.
Figure 4-124 Securing the driver card
4 Operating and Maintaining the Printer
4-83