Janome 13512, Service Manual

Page 1: ...SERVICE MANUAL MODEL 13512 14412 15312...

Page 2: ...AND ALIGNMENT 10 NEEDLE SWING 11 NEEDLE DROP 12 CLEARANCE BETWEEN NEEDLE AND HOOK ADJUSTMENT METHOD NO 1 13 CLEARANCE BETWEEN NEEDLE AND HOOK ADJUSTMENT METHOD NO 2 14 FEED DOG HEIGHT 15 NEEDLE BAR H...

Page 3: ...6 Inappropriate needle bar See mechanical adjustment P 16 height Needle bar height 7 Inappropriate needle to hook See mechanical adjustment P 17 timing Needle timing to shuttle 8 Inappropriate needle...

Page 4: ...ad 2 Too much thread is around on Adjust the position of stopper the bobbin 3 Lint is stuck inside the hook Clean the hook race race 4 Thread quality is too low Change to a high quality sewing thread...

Page 5: ...Motor belt tension 4 Upper shaft gear is loose Eliminate the looseness 5 Not enough oil Oil all moving parts 7 Deformation of 1 Inappropriate zigzag See mechanical adjustment P 11 pattern synchroniza...

Page 6: ...4 A Face cover SERVICE ACCESS 1 FACE COVER To remove 1 Remove the face cover by removing the setscrew A To attach 2 Mount the face cover in reverse procedure of the removing...

Page 7: ...5 Base plate A SERVICE ACCESS 2 BASE PLATE To remove 1 Remove the setscrews A 2 Remove the base plate To attach 3 Mount the base plate in reverse procedure of the removing...

Page 8: ...t screws A B and C and then remove the front cover by removing the set screws D E F G H I and J NOTE Unhook the tab L from the rear cover when remove the front cover TO ATTACH 2 Follow the above proce...

Page 9: ...e page 5 2 Loosen the setscrews A B and C and remove setscrews D E and F 3 Pull up the spool pins Remove the machine socket Remove the rear cover clearing the presser foot lifter frome the slit on the...

Page 10: ...the above limit adjust as follows 1 Set the tension dial 3 2 Remove the cover 3 Lower the presser foot If the top tension is too loose turn the lead screw in the direction A If the top tension is too...

Page 11: ...ing The bobbin thread tension should be 45 55g when pulling the thread in the direction of B If the tension is out of the range adjust it as follows Adjustment procedure 1 Turn the adjusting screw C i...

Page 12: ...face cover See page 4 2 Raise the presser foot lever and loosen the setscrew C on the presser bar holder Adjust the distance between the presser foot D and the needle plate D to 6 0 mm 0 24 3 Tighten...

Page 13: ...pattern selector dial with maximum zigzag width and remove the front cover See page 6 2 Loosen two setscrews 3 Adjust the needle swing by turning the handwheel while holding the worm so as not to rot...

Page 14: ...eedle hole on the needle plate and the needle drop positions should be equal If not adjust as follows Adjustment procedure 1 Remove the face cover See page 4 2 Set the pattern selector dial at maximum...

Page 15: ...is too wide move the needle bar supporter to direction B If clearance is too narrow move the needle bar supporter to direction C NOTE After this adjustment check that the clearance between the needle...

Page 16: ...e between the needle and the shuttle race in the range of 0 05 to 0 10 mm 5 Set the pattern select dial at turn the handwheel to check if the clearance between the needle and inner edges of the shuttl...

Page 17: ...om the needle plate should be 0 75 0 90mm If it is not in the range adjust as follows Adjustment procedure 1 Open the shuttle cover 2 Lower the presser foot and turn the handwheel toward you until the...

Page 18: ...ye and the tip of the shuttle hook should be in the range of 2 9 3 5 mm Adjustment procedure 1 Open the face cover 2 Set the pattern selector dial at 3 Open the shuttle cover 4 Remove the shuttle race...

Page 19: ...en the shuttle cover 4 Remove the shuttle race ring 5 Turn the handwheel toward you until the tip of the shuttle hook meets the left side of the needle 6 Loosen the lower shaft crank arm screws A 7 Wh...

Page 20: ...itch density The range of 9 12 stitches in the right side row backward feeding against 10 stitches in the left side row forward feeding is considered acceptable Adjustment procedure 1 Check the stitch...

Page 21: ...etting the stitch length dial at S S In case of being a difference between forward feeding and backward feeding during stretch stitch pattern sewing make an adjustment as follows Adjustment procedure...

Page 22: ...ttonhole make an adjustment as follows Adjustment procedure 1 Set the pattern selector dial at and the stitch length dial at 4 2 Remove the front cover See page 6 3 Place a piece of paper under the fo...

Page 23: ...rn Adjustment procedure 1 Set the pattern selector dial 2 Remove the front cover See page 6 3 Put the cam follower to the zigzag cam straight cam and also put the cam follower releasing arm to the pat...

Page 24: ...too loose it can cause the belt teeth on the motor pulley to jump 2 The correct motor belt tension is when the deflection of motor belt is about 7mm 0 28 9mm 0 36 When pushing the motor belt by finge...

Page 25: ...socket unit B Machine socket cover WIRING 1 Remove the belt cover See page 4 2 Remove the screws A B and machine socket cover 3 Follow the above procedure in reverse Motor cord Lamp cord Motor cord L...