Husqvarna VIKING Designer Jade User manual

1047355-26
SERVICE MANUAL
Designer Jade
Made in Sweden
8 Oct 2015

2
Table of contents
1. MOTOR BELT TENSION.......................................................................................................3
2. TIMING BELT TENSION .......................................................................................................3
3. BACKLASH OF HOOK GEAR...............................................................................................4
4. TIMING OF THE UPPER AND LOWER SHAFT ...................................................................5
5. GAP BETWEEN NEEDLE AND HOOK.................................................................................6
6. SETTING THE FEED DOG...................................................................................................7
7. HEIGHT OF THE FEED DOG ...............................................................................................8
8. HEIGHT AND DIRECTION OF PRESSER FOOT.................................................................9
9. NEEDLE PLATE AND NEEDLE POSITION ........................................................................10
10. POSITION OF NEEDLE POINT LIMITING PLATE ........................................................... 11
11. HEIGHT OF NEEDLE BAR ...............................................................................................12
12. HEIGHT OF NEEDLE THREADER...................................................................................13
13. TIMING OF THE HOOK ....................................................................................................14
14. ADJUSTING THE FEED REGULATOR.............................................................................15
15. ADJUSTING THE FORWARD REVERSE STITCH...........................................................16
16. ADJUSTING THE LOWER THREAD TENSION ...............................................................17
17. UPPER THREAD TENSION ............................................................................................18
18. FLATNESS OF THE BASE ...............................................................................................19
19. ADJUSTMENTS FOR BUTTONHOLE LEVER POSITION ...............................................20
20. BOBBIN WINDER .............................................................................................................21
Service Program......................................................................................................................22
Service menu 1 - Stepper Motors............................................................................................22
Service menu 2 - Display Test, Sensors Test, Reset Functions ..............................................23
Service menu 3 - Default Tension Adjustment, Test Pattern....................................................25
Service menu 4 - Test Patterns ...............................................................................................26
Service menu 5 - Keyboard Test .............................................................................................27
Embroidery Service Menu Function No. 1 - Embroidery Test..................................................28
Embroidery Service Menu Function No. 2 - Embroidery Test..................................................29
Embroidery Service Menu Function No. 3 - Test Design.........................................................29
Embroidery Service Menu Function No. 4 - Tension Adjustment ............................................30
Electrical Parts Connection .....................................................................................................31
REMOVING THE EXTERIOR PARTS.....................................................................................32
A. Light Cover..........................................................................................................................32
B. Thread Tension Cover.........................................................................................................33
C. Needle Plate .......................................................................................................................33
D. Base....................................................................................................................................33
E. Front Enclosure...................................................................................................................34
F. Unit Cover............................................................................................................................36
G. Top cover ............................................................................................................................37
H. Rear Enclosure ...................................................................................................................37
REPLACING THE EXTERIOR PARTS....................................................................................38
H. Rear Enclosure ...................................................................................................................38
G. Top cover ............................................................................................................................38
F. Unit Cover...........................................................................................................................38
E. Front Enclosure...................................................................................................................39
D. Base....................................................................................................................................41
C. Needle Plate .......................................................................................................................41
B. Thread Tension Cover.........................................................................................................41
A. Light Cover..........................................................................................................................42
EMBROIDERY UNIT
REMOVING THE EXTERIOR PARTS.....................................................................................43
A. Y carriage cover A...............................................................................................................43
B. Y carriage cover B...............................................................................................................43
C. X top cover..........................................................................................................................44
REPLACING THE EXTERIOR PARTS....................................................................................45
C. X top cover..........................................................................................................................45
B. Y carriage cover B...............................................................................................................46
A. Y carriage cover A...............................................................................................................46

3
Settings
1. MOTOR BELT TENSION
If the motor belt tension is too tight or too loose,
machine will not run smoothly.
Adjustment
1. Remove the front and rear enclosures.
2. Loosen the 2 screws (a, b)
2. TIMING BELT TENSION
If the timing belt tension is too tight or too loose, the
machine will run heavily or the timing of hook and
feed motion will be changed incorrectly.
Adjustment
1. Remove the front enclosure.
2. Loosen the screw (a) tightening the tension pulley
bracket.
3. Push the tension pulley bracket lightly (350-400g)
and retighten the screw (a).
4. When you have adjusted the timing belt tension,
re-check the timing of the upper and lower shaft
(Sec. 6) and the timing of the hook (Sec. 3) again.
a
b
3
23
5-6
mm
2 4
1
3. Move the motor up or downward and tentatively
tighten the screws.
Check the belt tension as follows:
• The belt does not touch to the casting or other
parts.
 •Thebeltmusthaveexibilityof5-6mmwhen
average pressure is applied on its sid e.
4. When correct tension has been obtained, tighten
the screws (a, b) securely.
ネジＡ
a
350-400g

4
Settings
3. BACKLASH OF HOOK GEAR
If there is too much play on the hook gear on the
turning direction, it may be the cause for machine
nottosewproperlyand/ormakingexcessivesewing
noise.
Check
1. Free play at the tip of hook may be 0.1-0.3 mm.
Note: To do this check on least 3 different spots
during the revolution of the hook by turning the
handwheel.
Adjustment
1. Remove the front enclosure.
2. Loosen the screw (a) and turn the lower shaft ec-
centric ball bushing up or down by hooking the tip
of (–) driver into the left side groove (b) of bushing.
• Turn upward: The play will increase
• Turn downward: The play will decrease.
3. Re-tighten the screw (a) tentatively and check that
the correct play has obtained.
4. Tighten the screw (a) securely.
5. When you have adjusted the backlash of hook
gear, check the timing of the hook again. (Sec. 2)
1
0.1-0.3 mm
a
b
View from upward
View from frontward
2

5
Settings
4. TIMING OF THE UPPER AND LOWER SHAFT
The upper and lower shaft must be positioned cor-
rectly as follows.
Check
1. Remove the front enclosure.
2. Turn the handwheel toward you until the needle is
its lowest point.
At this time, the mark (a - very small molded line
on edge) on the lower shaft timing pulley must be
facing toward you.
ネジＡ
b
Adjustment
1. Loosen the screw (b) tightening the tension pulley
bracket.
2. Slip out the timing belt from lower shaft timing
pulley.
3. Turn the lower shaft timing pulley so that the mark
faces toward you.
4. Hook the timing belt on the pulley.
5. Push the tension pulley bracket lightly (350-400g).
6. Retighten the screw (b)
7. Check the timing again and replace the front
enclosure.
8. When you have adjusted it, check the timing of
the hook again. (Sec. 1) 350-400g
ネジＡ
1
2 3
56
ネジＡ
2
a

6
Settings
5. GAP BETWEEN NEEDLE AND HOOK
If the needle hits against the hook, it may be the
cause of needle and thread breakages. If the gap
between needle and hook is too big, it will cause to
skip stitches. Check and adjust as follows:
Prior to make this adjustment, check that the needle
is not bent and the needle is inserted correctly.
Check
1. Insert a new needle size 90 universal in the
machine. Remove the needle plate and bobbin
holder.
2. Set the pattern at [Straight stitch No.1] and move
theneedlepositionextremetotheleft.(-3.5)
(Straight stitch on left needle postion.)
3. Turn the handwheel toward you until the needle
will cross over the hook.
4. Check the gap by pressing a small screw driver
against the needle. The gap should be 0.1- 0.2
mm.
Note:
Also, the needle should descend into the middle of
the needle hole of the needle plate in the feeding
direction.
If the needle is hitting against the hook or if the gap
is too much, adjust as follows:
Adjustment
1. Remove the rear enclosure.
2. Adjust the gap by turning the adjusting screw (a)
with2mmhex.wrench.
• If the gap is too big, turn the screw to the left with
viewing from frontward.
• If the needle is hitting the hook, turn the screw to
the right with viewing from frontward.
3. Replace the bobbin holder and needle plate and
light cover.
2
a
1
2
3
0.1-0.2mm
View from
upward
4
-3.5

7
Settings
6. SETTING THE FEED DOG
Check
1. Slideways the feed dog should be symmetrically
set in relation to the needle plate slot.
Adjustment
1. Remove the presser foot and holder.
2. Remove the needle plate.
3. Loosen the 2 screws tightening the feed dog.
4. Adjust the feed dog so that the teeth is centered in
the needle plate.
5. Retighten the screws.
6. Replace the needle plate and presser foot and
holder.

8
Settings
7. HEIGHT OF THE FEED DOG
If the feed dog does not come up over the needle
plateenough,itwillresultininsufcientand/or
uneven feed of fabrics.
Check
1. The feed dog should come up over the needle
plate (0.9-1.0 mm) when its highest position.
If it does not come up enough, adjust as follows:
Adjustment
1. Remove the needle plate.
2. Loosen the nut (a) behind the feed dog.
• If the feed dog is too low;
 Turntheadjustingscrew(b)(2.5mmhex.wrench)
clockwise.
• If the feed dog is too high;
Turn the screw (b) counterclockwise.
Re-tighten the nut (a) so that the screw (b) will not
move.
3. Re-check the height of feed dog.
1
0.9-1.0 mm
b
a
2View from backside

9
Settings
8. HEIGHT AND DIRECTION OF PRESSER FOOT
Check
1. The height of the presser foot from the needle
plate should be 6.5 mm when it is lifted up.
2. The presser foot should be facing frontward (the
edge of foot is parallel with the feed dog slot on
needle plate).
If adjustment is needed, follow these procedures:
Adjustment
1. Remove the front enclosure.
2. See the machine from diagonally forward right,
loosen the screw (a) is in the front.
3. Adjust the height and direction of presser foot.
4. Retighten the screw (a).
1
6.5 mm
2
2 4
a
Presser Bar
Presser Bar
Guide Bracket

10
Settings
1
c
d
3
4
3
4 5
Calibration Point
Check
1. Remove the light cover.
2. Start the service program. ( See page 22)
3. In menu 1, Press Key No 2 (Step motor will move
the calibration point.)
4. At this time, the gap between the projection (a) on
the center gear and the bracket should be 0 (zero).
Adjust
1. Loosen the screw (b) on the step motor gear.
2. In menu 1, Press Key No 2 (Step motor will move
the calibration point.
3. Pressing the lower side of center gear lightliy so
that the gap between project (a) and bracket is 0
and tighten the screw (b).
3. Press the Key No. 3 (centre positon) and press
the Key No. 2 again, check the gap is 0.
Centre position
Check
1. In menu 1, Press Key No 1 (Step motor will move
to the calibration point and move to the centre
point.)
2. At this time, the needle should fall into the centre
of the needle plate hole.
If it is not so, adjust as follows:
Adjustment
1. In menu 1, Press Key No 1 .
2. Remove the presser foot and the light cover.
3. Loosen the center screw (c).
4. Turn the adjusting screw (d) left or right until the
needle falls center position into the hole.
• When you turn the screw to the right, needle will
move to the left.
• When you turn the screw to the left, needle will
move to the right.
5. Retighten the screw (c) and re-check the position
of needle.
NOTE
At assembling, the marks of center gear and zigzag
cam should be aligned.
9. NEEDLE PLATE AND NEEDLE POSITION
0
a
b

11
Settings
b
b
a
c
0.25mm
0.2mm gauge
The needle point limiting plate is protecting the
needle hits the needle plate.
Check and adjust as follows.
Check
1. Set the pattern to [Straight stitch No.0] and set the
needlepositiontotheextremeright(3.5).
2. Remove the presser foot and light cover.
3. Check the gap between the needle point limit-
ing shaft (a) and limiting plate (b) should be 0.2-
0.25mm.
Adjustment
1. Loosen the screw (c).
2. Insert the 0.2 mm gauge and slide the limiting
plate (b) to the right.
3. Holding this position, tighten the screw (c).
10. POSITION OF NEEDLE POINT LIMITING PLATE

12
Settings
11. HEIGHT OF NEEDLE BAR
Height of needle bar could be the cause for stitches
to skip.
Check as the following procedures.
Check
1. Set the pattern to [Straight stitch No.1] which is
straight stitch on center needle position.
2. Raise the needle bar to its highest point by turning
the handwheel toward you. Remove the presser
foot. Remove the needle plate. Lift up the bobbin
holder and remove it.
3. Turn the handwheel toward you until the needle
comes to its lowest point.
4. Then, the gap between the upper end of the nee-
dle and surface of the hook race should be 29 mm
If this gap is not correct, adjust as follows.
Adjustment
1. Remove the light cover.
2. Loosen the screw (a) located inside of the bracket.
Adjust the needle to obtain correct height. Retight-
en the screw (a) and check the height again.
CAUTION: Do not change the needle bar direction
at this adjustment. The long groove of needle must
be facing frontwards. Use the twin needle if you
need check the needle bar direction.
3. Replace the thread take up lever cover and light
cover.
29 mm±0.1mm
3
4
1
a
Front View
2

13
Settings
12. HEIGHT OF NEEDLE THREADER
If the height of needle threader is not correct, the
hook on threader will not enter the needle eye.
Check and adjust as follows:
Check
1. Insert a new #70 needle.
2. Raise the needle to its highest point by turning the
handwheel.
3. The threader hook shall go smoothly into the
needle eye.
Adjustment
1. Remove the light cover.
2. Raise the needle to its highest point by turning the
handwheel.
3. Loosen the screw (a) on the needle threader bar
stopper(b)witha1.5mmhex.wrench.
4. Adjust the height of stopper (b) so that the hook
does not touch the inside of the needle eye.
5. Tighten the screw (a) to obtain the correct direc-
tion of stopper (b). (screw is facing frontward)
CAUTION:
Be careful with direction of stopper when tighten
the screw.
If direction of stopper NOT right, machine makes
noise and/or threader does NOT work smoothly.
6. Check the height of needle threader again.
7. Replace the light cover.
A.If the hook has bent, change the threader hook as-
sembly. To remove the hook assembly, loosen the
screw (c) then pull it downward.
3
A
3b
a
4 5
c

14
Settings
13. TIMING OF THE HOOK
Check
1. Set a new needle size 90 universal into the ma-
chine.
2. Remove the needle plate and bobbin holder.
3. Set the pattern at [Straight stitch No.1]
(Straight stitch on center needle postion.)
4. As the needle is moving upwards, the tip of the
hook should pass behind the center of the needle,
when the needle is 2.5 mm above its lower turning
position.
Check with setting gauge, Ref. No; 63-102600-
18/000 Spacer, Ref. No: 61-111600-02/000 Feeler
gauge 2.5, Ref. No; 413 10 22-01 Needle clamp
1. Set the machine so the needle is in its center
position against the #A presser foot.
2. Turn the hand wheel until the needle is at its lower
turning position.
3. Put the spacer onto the needle bar and push it
upwards against the needle bar frame (C).
4. Take then the timing clamp and put it on the
needle bar and tighten its screw lightly.
5. Take the 2.5 mm feeler gauge and put its cutout
on the needle bar, above the clamp.
6. Loosen the clamp a little and push both feeler
gauge and clamp upwards against the spacer.
7. Tighten the screw on the timing clamp.
8. Remove the 2.5 mm feeler gauge.
9. Turn the hand wheel, in the sewing direction, until
the timing clamp stops against the spacer.
10. The tip of the hook should now be behind the
centre line of the needle.
Adjustment
1. Remove the front enclosure.
2. Loosen the two 2 screws (B) on the lower shaft
gearwitha2.5mmhex.wrench.
3. Make sure that the feed dog is in its down stroke
position.
4. Repeat checking points 1 to 9 with the setting
gauges.
5. Hold the arm shaft and turn the hook until its tip
arrives behind the centre line of the needle.
6. Hold the hook in position with the left hand and
tighten one of the black screws.
7. Check.
8. Tighten all the screws.
B
2
A
A
C
A
A
C
2
2.5 mm

15
Settings
14. ADJUSTING THE FEED REGULATOR
a
b
d
e
c
3
Check
1. Remove the front cover.
2. Take the front cover and connected it. Lay it on top
of the casting.
3. Go to the service program and in menu 1. Press
the Key No. 7. (Feed step motor calibration posi-
tion)
4. At this time, the stopper (a) on the feed regulator
gear should touch to the cushion rubber (b).
Adjustment
1. Loosen the screw (c) on the step motor gear.
2. Go to the service program and in menu 1. Press
the Key No. 7.
3. Pressing the stopper on the feed regulator gear to
the cushion rubber lightly, tighten the screw.
4. Press the Key No. 8 (Feed 0 point) and press the
Key No. 7 again, then check the gear and coush-
ion rubber.
NOTE:
The mark of the motor gear (d) and the third concave
portion (e) from the right end of the feed regultor
gear should be aligned.

16
Settings
15. ADJUSTING THE FORWARD REVERSE STITCH
When stretch stitch sewing, the lengths of the for-
ward and reverse stitches should be the same.
Check and adjust as follows.
• We recommend checking “Height of the Feed-dog
(Sec. 4)” before you make this adjustment.
Check
1. According to service program menu 4, select the
mending stitch No. 1(See page 26).
2. Attach the satin stitch foot B and sew a mending
stitch. (Machine will repeat sewing forward and
backward and stop automatically.)
3. Difference of both ends of right and left should be
0~3mm.
If they are not so, adjust as follows.
3
cc
0~3mm
c
1
Adjustment
1. Tilt the machine backward.
2. The forward-reverse stitch length is adjusted by
turning the screw (c).
• If the reverse stitch is coarser than the forward
stitch, turn the screw to the right (+).
•Ifthereversestitchisnerthantheforwardstitch,
turn the screw to the left (-).
1
2

17
Settings
16. ADJUSTING THE LOWER THREAD TENSION
Check
1. Insert a full bobbin into the bobbin case, use nor-
mal polyester thread.
2. The thread tension spring of the bobbin case shall
give a resistance of 17g (Polyester #50 White )
when pulling the thread slowly. using normal poly-
ester thread.
Adjustment
1. Insert a full bobbin into the bobbin case, use
normal polyester thread.
2. Pull the thread slowly and turn screw (a) until the
correct thread tension is obtained.
NOTE:Removeanyloosepiecesofthreadoruff
from the thread tension discs before any adjustment
is mede.
a17g

18
Settings
17. UPPER THREAD TENSION
d
a
e
b
c
3
1
STEP 1
Check
1. Remove the thread tension cover.
2. In service program, Menu 1, press the Key No. 4.
3. At this time, the projection (a) should be touching
the stopper (b) of the bracket.
Adjustment
1. Loosen the screw (c) on the step motor gear.
2. Press the Key No. 5 (Thread tension calibration
point -power on)
3. Pressing the projection of the tension cam to the
stopper lightly and tighten the screw.
STEP 2
Check
1. In service program, Menu 3. Select No. 0. (Thread
tension adjusting mode)
2. Thread the Polyester #60 thread using ordinary
threading route until pass through the thread
tension discs.
3. Lower the presser foot. (Tension discs will be
closed)
4. Pull thread slowly. At this time the resistance
should be 75g.
Adjstment
1. Loosen the lock screw (d).
2. Adjust the tension by turning the tension regulator
screw(e) either to the front or back.
For stronger, turn the screw backward.
For weaker, turn the screw frontward.
3. Retighten the lock screw (d).

19
Settings
18. FLATNESS OF THE BASE
Adjustment
1. Remove the Embroidery unit.
2.Placethemachineonatstabletable.
3. Adjust the height of the rubber feet (a, b) by turn-
ing the adjusting center screws (c, d) so that the
base will be stabilized.
3a
b
dc

20
Settings
19. ADJUSTMENTS FOR BUTTONHOLE LEVER POSITION
Check
1. If the machine dose not sew even with the but-
tonhole lever all the way down, it means that the
buttonhole lever is not positioned properly. Also, if
the buttonhole lever is not positioned properly, the
machine will sew buttonhole as shown or incor-
rectly.
2. Set the machine to service program menu 2 press
key No 6.
3. Attach the one step buttonhole foot.
5
1mm
a
1
BH-FORE
2
4. Lower the presser foot and the buttonhole lever.
5. Pull the presser foot frame frontward about 1cm
while lifting the presser foot lever slightly.
Insert 0.3 gauge between the buttonhole lever and
buttonhole foot.
Then slowly move the frame backward. Lower the
lever when sensor program “BH-FORE” changes
to black from white.
6. At this time, the presser foot frame should be
about1mmfrontwardfromtheextremeend.
If it is not in correct position, adjust as follows:
Adjustment
1. Pull the presser foot frame 1mm frontward from
theextremeend,andlowerthepresserfoot.
2. Remove the light cover.
3. See the machine from the right side. Insert the 0.3
mm gauge between the buttonhole lever and but-
tonhole. Turn the eccentric pin (a) left or right so
that the sensor program “BH-FORE” just changes
to black from white. Then remove the gauge, the
boxshouldturntowhite.
4. Re-check the buttonhole lever position when ad-
justments have been completed.s
0.3 gauge
0.3 gauge
1
3