Related Manuals for Husqvarna VIKING 350
Summary of Contents for Husqvarna VIKING 350
- Page 1 SERVICE MANUAL 600,500,400,350 Printed in Sweden 104 72 57-26 Made in Sweden Jan -2003 (Replaces 104 72 38-26)
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Page 2: Table Of Contents
Contence Service tools ..................................3 Directions for use ................................4 ESD ....................................4 SETTINGS..................................6 1. The play of the hook gear............................7 2. Setting the hook in relation to the feedingeccentric (after feeding). Version 1 - one pin ..........8 2. Setting the hook in relation to the feedingeccentric (after feeding). Version 2 - two pins..........9 3. -
Page 3: Service Tools
Service tools A reasonable requirement in a domestic sewing machine is that it should able to sew all types of fabrics used in the home. The settings made when assembling and sewing-in the machines are thosemost suited to give the best results in the majority of fabrics and fabric combinations. In doing so, consideration has been given to the requirements of different markets. -
Page 4: Directions For Use
Directions for use These service instructions are intended to be used by service workshop personnel, or by salesmen who carry out servicing their own districts. They assume a thorough knowledge of the handling of precision appliances and accessibility to service tools. The manual is divided into two sections and covers all service operations and checks which should be carried out when making a complete overhaul of a sewing machine. - Page 5 SETTINGS - Model 350, 400 and 500 - 104 72 57-26...
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Page 6: Settings
SETTINGS - Model Rose - 104 72 57-26... -
Page 7: The Play Of The Hook Gear
1. The play of the hook gear It is impossible to obtain an equally large play in one rotation of the cog wheel, but it should be as small as possible at the tightest spot during the revolution. Check 1. Rotate the hook back and forth and check the play. 2. -
Page 8: Setting The Hook In Relation To The Feedingeccentric (After Feeding). Version 1 - One Pin
2. Setting the hook in relation to the feeding eccentric (after feeding). Version 1 - one pin Check 1. The needle shall be in its centre position, straight stitching. 2. Set the tip of hook (A) so is centred behind the needle, the tap of the worm gear should now be positioned according to fig. -
Page 9: Setting The Hook In Relation To The Feedingeccentric (After Feeding). Version 2 - Two Pins
2. Setting the hook in relation to the feeding eccentric (after feeding). Version 2 - two pins Check 1. The needle shall be in its centre position, straight stitching. 2. Set the tip of hook (A) so is centred behind the needle, the tap of the worm gear should now be positioned according to fig. -
Page 10: Belt Tension, Arm/Lower Shaft Belt
3. Belt tension, arm/lower shaft belt 1. Dismount rear cover and front cover 2. Loosen the screw in the bobbin winding device and remove it. 3. Loosen the two screws (A) of the bearing clamp. 4. The belt tension can now be adjusted by turning bearing (B) which is eccentric. NOTE! The hole (C) should always be on the front half. -
Page 11: Presser Foot Height And Parallelism To The Stitch Plate
5. Presser foot height and parallelism to the stitch plate Check The presser foot (A) shall be parallel to the feed dog groove (B) and in its lifted position it shall be approx. 8 mm above the stitch plate. Adjustment 1. -
Page 12: Setting The Feed Dog In Relation To The Presser Foot
6. Setting the feed dog in relation to the presser foot Check 1. Sideways the hook should be symmetrically set in relation to the presser foot. Adjustment 1. Loosen the 2 screws (A) in the feeding device. 2. Move the feeding device sideways until the feed dog is right below the presser foot. 3. -
Page 13: The Centre Position Of The Needle
7. The centre position of the needle 8. Pre-setting the step motor of the needle Check 1. Insert a new needle 90 in the machine. 2. When the machine is set for straight stitching centre position, the needle should sideways descend into the centre of the needle hole of the presser foot. Check 1.Get into the service mode of the machine by pressing the reverse feed button and minus (-) stitch length while the mains switch is turned on. -
Page 14: The Gap Between The Needle And The Hook
9. The gap between the needle and the hook Check 1. Set stitch selector for straight stitching. 2. Insert a new needle 90 in the machine. 3. Rotate hand wheel until the point of the hook arrives behind the needle. Check the gap by pressing a small screw driver against the needle. -
Page 15: Setting The Stitch Plate (The Hook Cover) In Relation To The Needle In The Feeding Direction
10. Setting the stitch plate (the hook cover) in relation to the needle in the feeding direction. Check 1. Insert a new needle 90 in the machine. 2. In the feeding direction the needle should descend right into the middle of the needle hole of the stitch plate. -
Page 16: The Height Of The Hook
12. The height of the hook Is checked between the bobbin case and the case holder - only Rose Check The distance between the bobbin case and the case holder should be 0.5 + 0.1 -0,05 The check is carried out at the tightest spot between the bobbin case and the case holder. -
Page 17: The Timing Of The Hook In Relation To The Needle
13. The timing of the hook in relation to the needle Check 1. Set a new needle 90 into the machine 2. Dismount the stitch plate and the bobbin case. 3. Set machine on straight stitching. 4. As the needle is moving upwards, the tip of the hook should pass behind the centre of the needle, when the needle is 2.5 mm above its lower turning position. -
Page 18: The Needle Height
14. The needle height Check 1. Bring needle into its lower turning position. 2. The gap between the upper end of the needle and the surface (B) of the hook ring should be 29.15 ± 0.2 mm. The check is executed with a polished needle 90 which is 29.15 mm long. Order nr. -
Page 19: Feed Dog Height
15. Feed dog height Check 1. Bring feed dog to its highest position. 2. The top of the feed dog should be 0.9-1.1 mm above the stitch plate. Check with setting gauge 411 49 93-01 Adjustment 1. Bring feed dog to its highest position. 2. -
Page 20: Stitch Length Balance Basic Setting
16. Stitch length balance basic setting Check Get into the service mode of the machine by pressing the reverse feed button and minus (-) stitch length while the mains switch is turned on. 600,500,400 - Press key nr. 5. Freesia,Lisa, Angelica, Victoria - Press key nr. 4. the feed dog shall now stand still when the foot control is pressed (0-feeding). -
Page 21: Pre-Setting The Step Motor Of The Feed Dog
17. Pre-setting the step motor of the feed dog Check 1 Set the needle in its lower turning position. The feed dog should after turning the mains switch several times on and off always reach such a position that 2.5 mm straight stitching will be obtained. Check 2 Get into the service mode of the machine by pressing the reverse feed button and minus (-) stitch length while the mains switch is turned on. -
Page 22: Stitch Length Balance
18. Stitch length balance Check Both columns of the buttonhole shall be of the same density. The machine shall sew a motif according to the symbol. The darning stitch shall look according to ill. Use the service program - button n 18 Note! When controlling or adjusting the stitch length balance the buttonhole balance shall be zeroed (see below). -
Page 23: Lower Thread Tension (Thread Tension Of The Bobbin Case)
19. Lower thread tension (thread tension of the bobbin case) Check 1. Insert a full bobbin into the bobbin case. 2. The thread tension spring of the bobbin case shall give a resistance of 12 - 20 g when pulling the thread slowly. Adjustment 1. -
Page 24: Upper Thread Tension
20. Upper thread tension Check A correct take-up should be obtained at straight stitching and zig-zag in cotton, when the thread tension dial is set within the marked area. Adjustment 1. Run the machine and turn the thread tension dial (A) until a correct take-up is obtained. 2. -
Page 25: Upper Thread Tension - Only Rose, Iris
21. Upper thread tension - only Rose, Iris Check - Thread tension - Normal position A correct thread take-up should be obtained at straight stitching and zig-zag in cotton when the thread tension dial is set within the marked area. Fine adjustment -1 Switch on the machine. -
Page 26: Coarse Adjustment
21. Upper thread tension cont. - only Rose, Iris Coarse adjustment If a correct take-up is not obtained with the fine adjustments. Switch on the machine. Press embroidery key (⇓) and the thread tension key (+) simultaneously and zero the fine adjustment. To save, press any key, but not the stitch length key. -
Page 27: Upper Thread Tension - Embroidery Position - Only Rose, Iris
22. Upper thread tension - embroidery position - Only Rose, Iris Check sewing A correct thread take-up will be obtained at embroidery stitch no 9 and with the thread tension dial set on embroidery position. The following embroidery thread is to be used: Upper thread: Thread thickness no 40 (e.g. -
Page 28: Upper Thread Guard - Only For Rose, Iris
23. Upper thread guard - only for Rose, Iris Check If the upper thread is running out or breaks the machine should stop. This is done by means of a photo diode (A) on the thread take-up casing which reads the movement on screen (B) which moves at the same time as the thread take-up spring. -
Page 29: Setting The Thread Take-Up Spring
24. Setting the thread take-up spring Check The thread take-up spring should have completed its movement when the tip of the needle reaches the fabric but not the needle eye. The check has to be carried out in straight stitching in cotton. Adjustment Turn the thread tension body with a screw driver until a correct thread take-up is obtained. -
Page 30: The Height Of The Embriodery Foot - Only Rose,Iris
26.The height of the embriodery foot - Only Rose,Iris Check 1. Embroidery foot U in its lowest position. 2. Needle bar in it´s highest position and the needle clamp screw (C) against the embroidery foot (according to ill). 3. The distance between the embroidery foot U and and the stitch plate (D) should be 1,9 ±... -
Page 31: Service Program - 600,500,400 Series
This is indicated when the code letter is shown (=key 1). To enter the service program of the Husqvarna 400 use the foil keyboard 412 36 51-01 the Husqvarna 500 use the foil keyboard 412 40 02-01 the Husqvarna 535,530 use the foil keyboard 412 53 20-02... -
Page 32: Electronic Button Hole Balance Rose, 500, 350 And 400 Version 2
Key 9 Check that the arm shaft sensor (stop right function) works. The latter looks after when the step motors have to be reset, it reads the speed and the stop right functions. The function is correct if numbers 0-3 are shown in the right part of the display, while the handwheel is turned around slowly. -
Page 33: Service Program- Freesia 425/415 -Lisa -Angelica -Victoria
Service program - Freesia 425/415 -Lisa -Angelica -Victoria In order to facilitate the checking and setting of the different functions of the machine there is a service program Handling Get into the service program of the machine by pressing the reverse feed button and the minus (-) stitch lenght button as the main switch is switched on. -
Page 34: Electronic Button Hole Balance - Freesia 425/415 -Lisa -Angelica -Victoria
Key 7 Is used for checking the: - Pre-setting of the step motor of the needle. The needle height. Setting nr 8. - Pre-setting of the feeding step motor. Feed dog below the stitch plate. Setting nr. 17 Key 8 Check that the arm shaft sensor (stop right function) works. -
Page 35: Setting The Country Code- Rose
Setting the country code- Rose. Keep the CLR-key pressed until the main switch is put on. Select a new country code with the right or left arrow. The machine will always remember the most recently set country code. Codes: gives figures as colour code gives Swedish as colour code gives Danish as colour code gives Finnish as colour code... -
Page 36: Rear Cover - 350, 400 And 500
Rear cover - 350, 400 and 500 1. Loosen the two screws (A) under the handle, screw (B) in the rear corner of the base plate and screw (C) at the thread knife of the sewing head. 2. Cautiously bend by means of a screwdriver the 2 recesses under the stitch plate in order to expose the hook. -
Page 37: Upper Rear Cover - Lily, Rose
Upper rear cover - Lily, Rose Loosen the two screws (A) under the handle, screw (B) in the rear corner of the base plate and screw (C) at the thread knife of the sewing head. Expose hook (F) and remove the rear cover. Lower rear cover - Lily, Rose 1. -
Page 38: Front Cover
Front cover 1. Dismount rear cover . 2. Loosen the button for the off-switch, winding, by pulling it straight out. 3. Loosen the two screws (B) from behind and screw (C) in the front corner of the base plate. 4. Snap off cover (D) by bending its lower edge by means of a screwdriver. 5. -
Page 39: Transformer
Transformer Dismounting 1. Dismount rear cover (page 33-34). 2. Loosen the two screws (A) of the transformer from below in the base plate. 3. Push the transformer to the right so that the mains switch part is exposed from the base plate and lift it upwards. 4. -
Page 40: Circuit Board - Circuit Diagram - For Models 350, 400 And 500
Circuit board - Circuit diagram - for models 350, 400 and 500 - Dismounting 1. Dismount rear cover (see page 33-34). 2. Dismount front cover (see page 35). 3. Loosen the 3 screws (A) holding the circuit board and the cooling plates and lift out the board from the machine. -
Page 41: Circuit Board - Circuit Diagram- For Model Rose
Circuit board - Circuit diagram- for model Rose - Dismounting 1. Dismount rear cover (see page 33-34). 2. Dismount front cover (see page 35). 3. Loosen the 3 screws (A) holding the circuit board and the cooling plates and lift out the board from the machine. -
Page 42: Sewing Head
Sewing head Dismounting 1. Dismount rear cover and front cover . 2. Loosen screws (A) and (B). 3. Remove the step motor of the needle. 4. Remove screws (C) and (D). 5. Unhook the sewing head from the sewing machine arm. 6. -
Page 43: The Step Motor Of The Needle
The step motor of the needle Dismounting 1. Dismount rear cover. 2. Dismount front cover. 3. Loosen screws (A) which hold the mounting plate of the step motor in the arm. 4. Loosen the circuit board from the sewing machine arm and remove the contact in the circuit board. -
Page 44: The Step Motor Of The Thread Tension - For Rose
The step motor of the thread tension - for Rose - Dismounting 1. Dismount rear cover and front cover. 2. Dismount the bobbin device. 3. Loosen the contact of the step motor of the thread tension on the circuit board. 4. -
Page 45: The Step Motor Of The Feeding Unit
The step motor of the feeding unit Dismounting 1. Dismount rear cover and front cover. 2. Unhook spring (A) at the end of the segment shaft. 3. Loosen the screws (B) of the step motor frame, expose the connection (C) between the segment shaft of the step motor and the feeding unit by pushing the shaft to the right. -
Page 46: Feeding Unit
Feeding unit Dismounting 1. Dismount rear cover and front cover. 2. Unscrew the 3 screws of the hook cover and remove it. 3. Unscrew the needle and the presser foot holder and set the feeding eccentric straight backwards. 4. Dismount the feeding step motor . 5. -
Page 47: Hook Compl
Hook compl. Dismounting 1. Dismount rear cove and front cover . 2. Dismount the feeding step motor. 3. Dismount the feeding unit. 4. Loosen screw (A) and lift hook compl. (B). Mounting 1. Turn the hand wheel until the highest part (C) of the eccentric points backwards and is within the recess (D) in the arm, and the gap between the feeding eccentric and the arm is 6 mm (see ill.). -
Page 48: Bobbin Winding Device
Bobbin winding device Needle- and feeding movement shall be disengaged when the ”bobbin shaft with its rubber ring” is pushed against the ring (B), and is engaged when it is pushed back. Dismounting 1. Dismount front cover and rear cover. 2. -
Page 49: Cover Y-Slide
Cover Y-slide Dismounting Cautiously bend the cover so that the 4 snaps (A) are exposed and lift the cover upwards. Mounting Place the cover over the plate and press the snaps. Cover upper part Dismounting Loosen the screw (A) on the outside of the gable, screw (B) on the inside of the gable and screw (C) on the other gable. -
Page 50: Cover Lower Part
Cover lower part Dismounting Loosen the 2 screws (A) on the underneath of the cover. Cautiously pull away the cover from the embroidery unit in order not to damage the circuit board and the cables. Loosen the cable from the circuit board. Mounting Insert the embroidery unit into the cover. -
Page 51: Y-Unit
Y-unit Belt tension The belt shall be adjusted in such a way that, when the Y-slide is in its end position, it should be possible to push in the belt approx. 3 mm with a force of 0,2 kg Adjust by loosening screw (A) and moving the belt wheel until a good belt tension is obtained. -
Page 52: X-Unit
X-unit Belt tension The belt shall be adjusted in such a way that, when the Y-slide is in its end position, it should be possible to push in the belt approx. 3,5 mm with a force of 0,2 kg. Adjust by loosening screw (A) and moving the belt wheel until a good belt tension is obtained. -
Page 53: Fault Finding Diagram - Rose Embroidery
Fault finding diagram - Rose Embroidery The machine cannot read the memory card. 1.Try another memory card. If the machine reads this one, the memory card was defective. 2. If the machine does not read the second memory card. Change the circuit board of the machine. - Page 54 The machine does not stop when the upper thread runs out or breaks. 1. Check key 23 according to the service program. A number is shown in the right corner of the display. If it switches between 2 different positions (”0” and ”1”) while moving the thread take-up spring up or down, the function is correct.