Sewing Head - Husqvarna Saphire Series Service Manual

Dismantling and mounting

Sewing head

Dismantling
1. Remove rear cover and front cover.
2. Remove the thread tension unit.
3. Remove the presser foot holder and needle.
4. Disconnect the cable from the PC-board.
D
5. Loosen the 2.5 mm Allen key screw (B) and remove both the wedge
(G) and the screw(B) by pushing them down.
6. Remove the spring, located on the back side.
7. Set the thread take up lever in its lowest position and remove Torx 20
screw (C)that holds the sewing head on the front.
on top.
9. Lift up the sewing head from the sewing machine arm.
10. Unhook the sewing head from the stud (E) of the thread take-up lever, Push the thread tension releaser
out of the hole in the casting, then lift the sewing head up and unhook the connecting rod (F).
Mounting
2. Connect the Crossheads tab to the Arm shafts link hole (F),
3. Push in the tension release lever into its hole in the casting.
4. Connect the stud (E) of the thread take-up lever.
5. Place sewing head in the machine and hold it while turning the hand wheel, by hand, until the needle bar is
in its lower position.
7. Mount the wedge (G) and the screw (B) together in the slot between the sewing head and the casting.
8. Tighten the 2.5 mm Allen key screw (B).
9. Mount the spring.
10. Connect the cable, from the Main PC board to the board on the left side of the Sewing head.
11. Mount the thread tension unit.
Set thereafter:
5. The gap between the needle and the hook.
C
B
A
G
E
F
50 104 72 79-26