Stratasys J750 User Manual page 82

Stratasys J750 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 17. Place four (4) O-ring seals in the replacement head (see Figure 4-87 on the
New Head
18. Position the head in the print block, making sure that the location pins
19. Tighten the upper and lower screws that secure the print head in the print
20. I nsert the driver card into its socket, and secure the card.
21. Lower the protective cover and tighten the screws to secure it.
DOC-08040 Rev. E
Figure 4-88 Making sure the O-rings are not stuck to the print block
previous page).
are in place.
Note: Make sure to insert the head with the contacts on the driver card facing
the print block.
block (see Figure 4-86 on the previous page).
Note: Hand-tighten these screws. To avoid over-tightening, do not use a hex
(Allen) key.
Figure 4-89 Securing the driver card
4 Operating and Maintaining the Stratasys J750 3D Printer
4-61