Viking Huskystar 207 User manual

Huskystar
207/215
Typ B
Service manual
Printed and
MadeinSweden
Feb-2001 104 72 51-26

2
Huskystar 207, 215
Contence
FACECOVER ............................................................................................................................................. 3
MOTORCOVER ......................................................................................................................................... 3
BASEPLATE.............................................................................................................................................. 4
FRONTCOVER .......................................................................................................................................... 5
REARCOVER............................................................................................................................................. 6
LOWERTHREAD TENSION ....................................................................................................................... 7
UPPERTHREADTENSION ........................................................................................................................ 8
PRESSER BARHEIGHT ANDALIGNMENT ............................................................................................... 9
TURNINGMOVEMENT OFTHE NEEDLE INZIG-ZAGAND THEPLAYOF THEWORM GEAR ............... 10
NEEDLEDROP ..........................................................................................................................................11
CLEARANCEBETWEEN NEEDLE AND HOOK (ADJUSTMENT METHOD NO.1- Sewinghead) ........... 12
CLEARANCEBETWEENNEEDLE ANDHOOK(ADJUSTMENT METHODNO.2-HOOK)......................... 13
FEEDDOGHEIGHT.................................................................................................................................. 14
NEEDLEBARHEIGHT.............................................................................................................................. 15
NEEDLETIMING TO SHUTTLE................................................................................................................ 16
BUTTONHOLEFEEDBALANCE .............................................................................................................. 17
BARTACK FEEDOFBUTTONHOLE ........................................................................................................ 18
FEEDBALANCE ONSTRETCH STITCH .................................................................................................. 19
CAM FOLLOWERS LIFTING HEIGHT (For Model 215 only) ................................................................. 20
CAM FOLLOWERS LIFTING HEIGHT- (For Model 207 only) ................................................................. 21
ZEROINGTHE NEEDLE -(For Model 215 only) ....................................................................................... 22
MOTORBELT TENSION .......................................................................................................................... 23
WIRING .................................................................................................................................................... 24

3
Huskystar 207, 215
( C )
( B )
( A )
( E )
To remove.
1. Remove the face cover (D) by removing the cap (A) and screw (B).
To attach.
2. Attach the face cover (D) with the set screw (B), then, attach the cap (A).
1. Loosen screw (C).
2. Take the motor cover away.
MOTOR COVER
FACE COVER

4
Huskystar 207, 215
( A )
BASE PLATE
To remove.
1. Remove 4 screws (A).
2. Remove the base plate.
To attach.
3. Follow the above procedure in reverse.
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Huskystar 207, 215
( A )
( F )
( H )
( C )
( G )
( J )
( E )
( B )
( I )
( D )
FRONT COVER
To remove.
1. Remove the face cover, and motor cover.
2. Loosen set screws (A), (B), (C), (D) and then, remove the front cover (J) by removing set
screws (E), (F) and (G).
Note! Remove the hook (H) first, then hook (I).
To attach.
3. Follow the above procedure in reverse.

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Huskystar 207, 215
(A) ( B )
( E )
( I )
( C )
( F )
( D )
( H )
( G )
( J )
( Y )
( X )
( Z )
( K )
REAR COVER
To remove.
1. Remove the face cover and motor cover.
2. Pull up the spool pins (K).
Loosen set screws (A), (B), (C) and (D: 2 pcs.), then remove the rear cover (I) by
removing the set screws (E), (F), (G) and (H).
Note! Remove the rear cover in the order of lower part (X), upper part (Y) and presser
bar lifter part (Z).
Note! Remove the bed cover plate (J) together.
To attach.
3. Follow the above procedure in reverse.

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Huskystar 207, 215
(A)
( D )
( C )
LOWER THREAD TENSION
Check.
Set the bobbin in the bobbin case and pass a thread through the tension spring.
The lower thread tension should be between 25 and 35 grams when pulling the thread in the
direction of (A).
Adjustment.
1. If the lower thread tension is too tight, turn the adjusting screw (B) in the direction of (C).
2. If the lower thread tension is too loose, turn the adjusting screw (B) in the direction of (D)

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Huskystar 207, 215
( B )
( D )
( C )
UPPER THREAD TENSION
The standard upper thread tension should be between 65 and 95 grams when pulling a cotton
size 50 thread in the direction of (A) with the tension dial at “3”. The presser foot should be
lowered when checking the upper thread tension.
Adjustment
1. Remove the front cover.
2. Turn the adjusting nut (B) in the direction of (C) when the upper thread tension is too tight.
Turn the adjusting nut (B) in the direction of (D) when the upper thread tension is too
loose.
3.Attach the front cover.

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Huskystar 207, 215
Set screw (C)
( B )
(A)
( E )
( F )
6,0mm
PRESSER BAR HEIGHT AND ALIGNMENT
Check.
1. Raise the presser bar lifter (A).
2. The distance between the presser foot (D) and the needle plate (E) should be 6.0 mm.
Adjustment.
1. Remove the face cover.
2. Remove the screw (B) and take the lamp socket off.
3. Raise the presser foot lever and loosen the hexagon socket screw (C) on the presser
barholder.
Adjust the distance between the zigzag foot (D) and the needle plate (E) to 6.0 mm.
4. Tighten the screw (C) securely.
5. Tighten the screw (B) to secure the lamp socket.
6.Attach the face cover.
Note! When you tighten the screw (C), make sure that both sides of the presser foot are parallel
to the feed dog slots (F) on the needle plate.

10
Huskystar 207, 215
2-3mm
(A)
( B )
TURNING MOVEMENT OF THE NEEDLE IN ZIG-ZAG
AND THE PLAY OF THE WORM GEAR
In sewing zigzag zigzag stitch (with maximum zigzag width), if the needle bar starts moving
sideways while the needle is in the fabric, adjust the needle swing according to the following
procedure:
To adjust.
1. Set the stitch selector dial with maximum zigzag width, and remove the front
cover.
2. Loosen the two set screws (A).
3. Adjust the needle swing by turning the hand wheel while holding the worm gear (B) so
there is no rotation until the needle swing starts at 2 to 3 mm above the needle plate
after the needle has come out of the right side of the needle plate hole.
4. Tighten two set screws (A).
5. Mount the front cover.
Note! After adjusting the needle swing, check that the upper shaft worm, and gear rotate
smoothly without any backlash between them.

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Huskystar 207, 215
0,2mm
( B )
(A)
NEEDLE DROP
To check.
When the needle swings in maximum zigzag width, the distance between both ends of the
needle hole on the needle plate and the needle drop positions should be more than 0.2mm
and equal (C).
If not, adjust as follows:
To adjust.
1. Remove the face cover.
2. Set the stitch selector dial at maximum zigzag width.
3. Loosen the hexagon socket screw (A).
4. Turn the eccentric pin (B) to adjust the needle drop.
5. Tighten the hexagon socket screw (A).
6. Attach the face cover.
Note! Check the hook timing after this adjustment.

12
Huskystar 207, 215
0,15mm
0,05 - 0,10mm
(A)
( C )
( B )
( E )
( D )
CLEARANCE BETWEEN NEEDLE AND HOOK
(ADJUSTMENT METHOD NO. 1- SEWING HEAD)
The clearance between the needle and tip of shuttle hook should be -0.05 to +0.10 mm (F).
If not, adjust as follows:
To adjust.
1. Remove the face cover.
2. Insert a new # 90 needle.
3. Set the stitch selector dial at straiht stitching ( needle in left position) for Model 207. For
Model 215 set it at ( needle in left position) and zigzag dial at "0".
4. Loosen set screw (A), and move the needle bar supporter (E) in the direction of the
arrows to obtain the clearance between 0.05 to +0.10 mm (F).
If the clearance is too wide, move the needle bar supporter (E) to the direction of (B).
If clearance is too narrow, move the needle bar supporter (E) to the direction of (C).
Note!After the above adjustment, check that the clearance between the needle and needle
plate is more than 0.15 mm as shown in figure (D).
If not, adjust the clearance between needle and shuttle hook by using
adjustment method No:2 on the next page
5. Attach the face cover.

13
Huskystar 207, 215
( F )
( G )
( D )
( C )
( H )
( B )
( E ) ( A )
CLEARANCE BETWEEN NEEDLE AND HOOK
(ADJUSTMENT METHOD NO.2- HOOK)
Use this adjustment method No. 2 when method No.1 cannot be used.
The clearance between the needle and shuttle race should be -0.05 to +0.10 mm.
To adjust.
1. Set the stitch selector dial at dial at straiht stitching ( needle in left position)for Model
207.
For Model 215, set the dial at straiht stitching ( needle in left position)and zigzag width
at "0".
2. Insert a new # 90 needle.
3. Remove the rear cover and the shuttle race ring.
4. Loosen the hexagon socket screw (A) on the bushing (H) and slide the bushing about
0.5 mm to the right to create some slack between the lower shaft gear and hook drive
gear.
Then tighten the hexagon socket screw (A) slightly.
5. Lower the needle and loosen the two hexagon socket screws (B).
Move the shuttle race unit axially either forward or backward to adjust the clearance
between the needle and the shuttle race in the range of 0.05 to +0.10 mm (C).
6. Set the stitch selector dial at zig-zag for Model 207.
For Model 215, set it at zig-zag and zigzag width at "5".
Turn the hand wheel to check if the clearance (D) between the needle (G) and inner
edges of the shuttle race spring (F) at the left and right needle drops are equal.
If not, loosen the 2 hexagon socket screws (B) and adjust by turning the shuttle race
unit (E).
7.Tighten the 2 screws (B).
8. Loosen the set screw on the lower shaft bushing and slide the bushing back to the
original position while adjusting the backlash.

14
Huskystar 207, 215
( B )
0,75 - 0,90mm
(A)
( D )
FEED DOG HEIGHT
To check.
1. Lower the zigzag foot (B).
2. Turn the hand wheel towards you until the feed dog comes to its highest position. In
this condition the height of the feed dog should be between 0.75 and 0.90mm (C).
To adjust.
1. Open the bed cover plate.
2. Lower the zigzag foot and turn the hand wheel toward you until the feed dog comes to
its highest position.
3. Loosen the hexagon socket screw (A).
4. Turn the feed lifting pin (D) to adjust the height of feed dog between 0.75 and 0.90mm
(C).
5. Tighten the hexagon socket screw (A).
6. Turn the hand wheel towards you to recheck the height of feed dog.
0DULQDV/LWWOH6KRSSHRQH%D\

15
Huskystar 207, 215
(A)
( C ) 2,9 ~ 3,5mm
( B )
NEEDLE BAR HEIGHT
When the tip of shuttle hook meets the left side of the needle (B) in ascending travel of the
needle from its left and lowest position, the distance between the top of the needle eye and
the tip of the shuttle hook should be in the range of 2.9 and 3.5mm (C).
To adjust.
1. Remove the face cover.
2. Set the stitch selector dial at ( ) for Model 207. For Model 215, set it at ( ) and
zigzag dial at "0".
3. Open the bed cover plate.
4. Remove the shuttle race ring.
5. Turn the hand wheel toward you until the tip of the shuttle hook meets the left side of the
needle (B).
6. Loosen the hexagon socket screw (A).
7. Adjust the height of the needle bar by moving the needle bar (D) upward or downward
without turning it.
8. Tighten the screw (A).
9. Attach the shuttle race ring.
10. Attach the face cover.

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Huskystar 207, 215
1.45 ~ 1.95mm (B)
(C)
(A)
NEEDLE TIMING TO SHUTTLE
The height of the needle from its lowest point (A) of travel should be in the range of 1.45 and 1.95
mm (B) when the tip of the shuttle hook just meets the left side of the needle at the left needle
position.
Adjustment.
1. Set the stitch selector dial at straight stitching ( needle in left position)
For Model 215, set it at dial at straight stitching ( needle in left position) and zigzag width at “0”.
2. Remove the base plate.
3. Open the bed cover plate.
4. Remove the shuttle race ring.
5. Turn the hand wheel towards you until the tip of the shuttle hook meets the left side of the
needle.
6. Loosen the 2 hexagon socket screws (C).
While holding the shuttle hook, turn the hand wheel towards you until the needle comes to its
lowest position. Then, continue to turn the hand wheel to raise the needle about 1.7 mm from its
lowest position.
8. Tighten the 2 screws (C).
9. Turn the hand wheel toward you to check if the height is in the range of 1.45 and 1.95 mm.
10.Attach the shuttle race ring.
11.Attach the base plate.

17
Huskystar 207, 215
(A) ( B )
( D ) ( C )
( F )
( G )
( E )
BUTTONHOLE FEED BALANCE
When sewing a buttonhole, the stitches on each side of the buttonhole should be of the same
stitch density. A range of 9 to 12 stitches in the backward feeding right side row paired with
10 stitches in the forward feeding left side row is considered acceptable.
To adjust.
1. Sew a buttonhole.
2. Remove the cap. (E) by inserting a screwdriver into the notch (F).
3. Turn the adjusting screw (G) in the direction of:
(C) in case of (A) (right stitches are coarse)
(D) in case of (B) (left stitches are coarse).
2. Attach the cap.

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Huskystar 207, 215
( C ) ( D )
( E )
( G )
( F )
BARTACK FEED OF BUTTONHOLE
If the material is fed forward or backward when sewing the bartack on a buttonhole, adjust as
follows:
To adjust.
1. Set the stitch selector dial at and the stitch length dial at "4".
2. Remove the front cover.
3. Place a piece of paper under the foot and turn the hand wheel
4. Turn the adjusting screw (E) in the direction of:
(C) if the paper is fed forward (F).
(D) if the paper is fed backward (G).
5. Attach the front cover.

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Huskystar 207, 215
AB AB AB
( C ) ( D )
( F )
( E )
( G )
A
A
AA
A
A
B
B
B
FEED BALANCE ON STRETCH STITCH
If the stretch stitch is distorted when setting the stitch length dial at ”stretch”, adjust as
follows:
To adjust.
1. Remove the cap (E) by inserting a screwdriver into the notch (F).
For Model 215, set it at stretchstitch and the stitch length dial at "stretch".
2. Turn the adjusting screw (G) in the direction of
(C) when A > B
(D) when A > B.
3. Attach the cap (E).

20
Huskystar 207, 215
0,3mm
( B )
( F )
( G )
( A )
( D )
( C )
( C ) ( H )
( E )
CAM FOLLOWERS LIFTING HEIGHT
(For Model 215 only)
Too narrow clearance between the cam follower (B) and the top convex of the zigzag cam (F)
may make it difficulty to turn the stitch selector dial to select the correct stitch or may cause
zigzag stitch in straight stitch setting.
To adjust.
1. Remove the front cover.
2. Set the machine at zigzag stitching and stitch width dial at ”5”.
3. Turn the hand wheel to bring the cam follower onto the top convex of the zigzag cam (F).
4. Loosen the screw (C).
5. Push the adjusting plate (D) to the direction of the arrow until the cam follower releasing
arm (E) touches position (A) of the stitch select cam (G), then tighten the set screw
(C).
Note! After the adjustment, check that the clearance between the zigzag cam and the cam
follower is 0.3 mm when the cam follower releasing arm is moved to the position (B) by
turning the stitch selector dial counterclockwise.
6.Attach the front cover.