Step Motor Of The Needle - Husqvarna Saphire Series Service Manual

Dismantling and mounting

Step motor of the needle

Dismantling
NOTE! The sewing head should be in the machine when changing the step motor of the needle.
1. Remove rear cover and the front cover.
2. Disconnect the step motor cable from the sewing heads connecting board.
3. Remove the step motor by removing the 2 screws (A).
Mounting
1. Mount an A-foot and a new 90 needle.
2. The needle should now be manually set against the A-foot, by hand, to its centre position.
3. On the step motor, position the cogwheel (B) so that the screw (C) is pointing to the left side of the se-
wing head, when mounted.
5. Enter the screws (A) and tighten them.
6. Connect the step motor cable to the sewing heads connecting board.
7. Loosen the screw (C) on the Step motors cogwheel (B).
8. Connect the front cover to the PC Board.
9. Enter the service program.
10. Turn the screw (C) on the cogwheel (B) until the needle is in its centre position of the Presser foot A and
the screw (C) is still pointing out to the left of the sewing head.
11. Tighten the Screw (C).
12. Calibrate the step motor – Press Key 1 in menu 1 of the service program repeatedly, the needle must
always be in its centre position of the Presser foot A.
A
C
A
B
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