Specifications

3. Refer the the procedure for removing the thread tensioner assembly and remove
is as described in the procedure.
4. Remove the 2 screws holding the upper needle case cover plate and set the
cover plate aside (see Figure 3-25).
5. Loosen one screw and then remove the other screw holding the lower needle
case cover plate and set the cover plate aside. You can now access the needle
bar area to remove any of the 10 needle bars out through the top of the needle
case.
6. Refer to Figure 3-26, then loosen the needle clamp set screw and remove the
needle, needle clamp, and needle clamp damper from the bottom of the needle
bar.
7. Next, loosen the needle bar stop clamp (black clamp).
8. Loosen the top screw (see Figure 3-26) on the needle bar. (You will remove and
transfer the screw in step 11.)
CAUTION! After the next step, the needle bar is free to be moved out the top of
the needle case. Use care so the springs and other parts do not suddenly fly out of
position.
9. Loosen the needle bar clamp.
upper needle case
cover screws
lower needle
case cover
screws
Figure 3 - 25
Replacing A Needle Bar 3 - 29
110305-01, Rev A 3. Mechanical Disassembly