Husqvarna Designer 1 Service Manual

							              51 104 72 47-26
Parts of the  hook cover compl.
Changing the thread cutter knife
Dismounting
1. Dismount the stitchplate.
2. Snap away the thread cutter cover.
3. Dismount the thread cutter knife arm (B).
4. Dismount the thread cutter holder (D) .
5. Dismount the knife (C).
Mounting
Mounting in reversed order.
The pin (G) shall be in groove (H)
NOTE! When mounting the thread cutter knife arm check
that the thread brake lining isnt damaged.
The lower thread indicator
1. Dismount the hook cover.
2. Dismount the thread cutter step motor.
3. Snap away the thread cutter cover.
4. Dismount the thread cutter gearbox by removing the 2 screws (E).
5. Dismount the thread sensor compl. (F).
Mount in reverse order.
Note! Both diods on the thread
sensor should be pushed into
 the hook cover.
The thread cutter step motor
Dismounting
1. Dismount rear covers and front cover
2. Dismount the hook cover compl
3. Dismount  the thread cutter step motor by
removing  the 2 screws (A).
4. Disconnect the cable from the step motor.
Mount in reverse order.
Dismantling  and mounting 
						

							52104 72 47-26
Feeding unit
Dismounting
1. Dismount rear and front covers.
2. Dismount the hook cover.
3. Dismount the needle and the presser foot holder and set the feeding eccentric straight
backwards (Needle in the highest position).
4. Unhook spring (A) from the feed carrage and disconnect the draw bar from the feed dog
frame.
5. Dismount  the 2 screws (B).
6  Disconnect the cross joint py pushing the feeding shaft to the right.
7. Lift out the complete feeding unit.
Mounting
1. Set feeding eccentric straight backwards.
2. Set the guide in the correct position se illustation.
3. Insert feeding unit and connect the cross joint.
4. Tighten screws (B).
5. Connect the draw bar and spring (A).
6. Mount hook cover, presser foot holder and needle.
Set there after
5.  The setting of the feed unit sideways.
13. The setting of the stitch plate (hook cover) in relation to the
    needle in the feeding direction
14. The sideways setting of the stitch plate (hook cover) in relation
    to the pressarfoot.
15. The height of the hook.
17. Setting the feeding mechanism sideways.
18. Feed dog height
20. Stitch length balance, basic setting
21. Pre-setting the step motor of the feed dog
22. Stitch length balance, fine adjustment
Dismantling  and mounting 
						

							              53 104 72 47-26
Feed dog.
Dismounting
1. Dismount the feeding unit.
2. Dismount the feed dog frame from the feed unit .
3. Dismount the feed dog by removing the 2 screws (A).
Mounting
1. Press the feed dog and the feed dog frame against a straight sureface. See Fig 1.
2. Tighten the 2 screws (A).
3. Mount the feed dog frame on the feed unit
4. Mount the feed unit.
Set thereafter
5.  The setting of the feed unit sideways.
13. The setting of the stitch plate (hook cover) in relation to the
    needle in the feeding direction
14. The sideways setting of the stitch plate (hook cover) in relation
    to the pressarfoot.
18. Feed dog height
20. Stitch length balance, basic setting
21. Pre-setting the step motor of the feed dog
22. Stitch length balance, fine adjustment
Dismantling  and mounting 
						

							54104 72 47-26
The side feeding mechanism cpl.
Dismounting
1. Dismount rear cover and front cover
2. Dismount the main circuit board
3. Disconnect the draw bar (C) from the side  feeding mechanism by  removing
the screw (A) and the clip (B).
4. Remove the 3 screws (D) and remove the side feeding mechanism.
Mount in the reverse order.
Set thereafter.
17. Setting  the feeding  mechanism sideways
22. The stitch length balance, fine adjustmemt.
The step motor of the side feeding mechanism
Dismounting
1. Dismount the side feeding mechanism .
2. Dismount the cogwheel by removing the screw (A)
3. Dismount the step motor by removing the 2 screws (B)
The step motor is connected to the circuit board according to
the wiring plan.
Mount in the reverse order.
Note! The screw (A) on the cog wheel  shall be positioned so
it doesent hit into the cog segment.
Dismantling  and mounting 
						

							              55 104 72 47-26 Fig 1
A
BC
The step motor of the feeding unit
Dismounting
1. Dismount rear cover  and front cover.
2. Dismount  the circuit board.
3. Dismount the base plate.
4. Unhook spring (A) at the end of the segment shaft.
5. Disconnect the draw bar from the side feeding mechanism.
5. Remove the screws (B) of the step motor frame, expose the cross joint (C)
   between the feeding shaft of the step motor and the feeding unit by pushing
   the shaft to the right.
6. Lift the step motor compl. out of the machine and remove its contact from
   the circuit board.
Mounting
1. Position the step motor compl.
2. Connect the connection (C) between the segment shaft of the step motor
   and the feeding unit.
Note! Location of the guide (see Fig 1 ). Do not turn 180 degrees wrong!.
3. Tighten screws (B) and connect contact to the circuit board.
4. Mount the spring holder and spring (A).
5. Mount the drawbar to the side feeding mechanism.
6. Mount the Base cover, main circuit board, front and rear covers
Set thereafter.
17. Setting the feeding mechanism sideways
20. Stitch length balance, basic setting
21. Pre-setting the step motor of the feed dog
22. Stitch length balance, fine adjustment
Dismantling  and mounting 
						

							56104 72 47-26
Hook compl.
Dismounting
1. Dismount rear cover  and front cover .
2. Dismount the feeding unit .
3. Loosen the screw (A) and lift hook compl. (B).
Note! The hook can be dismounted without removing the feeding unit.
Mounting
1. Turn the hand wheel until the needle comes to its highest position.
2. Position washer, adjustment stud and dust shield onto the arm. With the adjustment
     stud forward.
3. Place the hook so that the tip (C) points straight backwards.
4. Press the hook shaft downwards so that it is without play and tighten screw (A).
5. Mount the feeding unit.
Note! The position of the hook in relation to the lower shaft mustn’t be changed.
Set thereafter:
  2.Setting of the hook in relation to the feeding eccentric.
  1.Play of the hook gear.
  5.Setting of the feeding unit sideways.
  8.Gap between the needle and the hook.
  9.Timing of the hook in relation to the needle.
10.Needle height.
13.The setting of the stitch plate (hook cover) in relation to the needle in the feeding direction.
14.The sideways setting of the stitch plate (hook cover) in relation
to the pressarfoot.
15.The height of the hook.
18.Feed dog height.
22.Stitch length balance.
Dismantling  and mounting 
						

							              57 104 72 47-26
Bobbin winding device
Needle- and feeding movement should be disengaged when the ”bobbin
shaft with its rubber ring” is pushed against the ring (B), and engaged when
it is pushed back.
Dismounting
1. Dismount rear covers  and front cover .
2. Dismount the screw (A).
Mounting
1. Keep the bobbin device in extended position.
2. Push ring (B) against the hand wheel.
3. Push the rubber ring (C) of the bobbin device against ring (B).
4. Tighten the screw.
5. Check.
Note! With the bobbin device in the extended position there should be a small
 play when pushing the ring (B) against the hand wheel.
Dismantling  and mounting 
						

							58104 72 47-26
Cover Y-slide
Dismounting
Cautiously bend the cover so that the 5 snaps (A) are exposed and lift the cover upwards.
Mounting
Place the cover over the plate and
press the snaps.
Step motor cover
Snap off the step motor cover by pushing in the snap (A) in the direction of the arrow.
Embroidery Unit 
						

							              59 104 72 47-26
Cover upper part
Dismounting
Move the Y-unit to its leftmost position
Remove the 3 screws (A) underneath the lower cover.
Push the cover in the direction of the arrow to unhook the guides (B) from the embroidery
unit.
Mounting in reversed order.
NOTE! Make sure that all guides (B) on the inside of the cover are correctly inserted.
Cover lower part
Dismounting
Remove the 3 screws (A) and grounding cable (B).
Lift out the embroidery and unhook the Y-unit from the guide rail.
Disconnect the cable to the step motor.
Deattatch the connecting board and disconnect the cable.
Mounting in reversed order.
Locker switch
The locker switch contains a micro switch that shuts off the embroidery unit
when it is attached/detached from the machine.
Dismounting
Remove the upper cover
Push up the locker switch button and remove the micro switch.
Embroidery Unit 
						

							60104 72 47-26
Embroidery unit    -     X-unit
Belt tension
Check
The belt should be adjusted in such a way that it should be possible to
push in the belt approx. 4,5 mm with a force of 0,2 kg.
Adjustment
Adjust by loosening the screw (A) and move the plate (B) until a good
belt tension is obtained.
Calibration of the end position, X-unit.
Check
Move the X-unit to that the calibration stop (E) is against the frame (F).
The distance between (A) and (B) should now be 2 mm.
Adjustment
1. Remove the holder (C) by removing the screws (D).
2. Move the Y-unit so that the distance between (A) and (B) is 2 mm.
3. Turn the cog wheel so that the calibration stop (E) is against the frame (F).
4. Mount the holder (C) with one leg on each side of the belt.
5 Check
Embroidery Unit