Janome HD3000 Скачать руководство пользователя страница 23 | Manualshive

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ADJUSTMENT OF NEEDLE THREAD TENSION

When the cotton thread size 50 is passed as shown in the figure below and pulled upward, the
tension should be 85 to 115 g with the thread tension dial set at “3”.

(1) Set the thread tension dial at “3” and pass the thread.
(2) Open the face plate, and lower the pressure foot lifter.
(3) Adjust the tension by turning the shaft with a blade-edge screwdriver.

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Содержание HD3000

Страница 1: ...SERVICING MANUAL HD 3000...

Страница 2: ...GHT 11 ADJUSTMENT OF CLEARANCE BETWEEN NEEDLE AND ROTARY HOOK 12 ADJUSTMENT OF BACKLASHES BETWEEN HOOK DRIVE SHAFT GEAR AND LOWER SHAFT GEAR 13 ADJUSTMENT OF NEEDLE BAR HEIGHT 14 ADJUSTMENT OF HOOK TI...

Страница 3: ...wo set screws B and C 2 Raise the carrying handle lift the top cover unit and separate the carrying handle stays from each pin by pushing them from both sides 3 Detach the top cover unit together with...

Страница 4: ...sengage its convex part from the carrying handle supporter plate and detach the belt cover To attach 4 Engage the convex part of the belt cover with the carrying handle supporter plate fit the rib to...

Страница 5: ...o attach 3 Insert the base while tilting it and tighten the two set screws D and then three set screws A B and C Bed cover unit To remove 1 Loosen and remove the two set screws E To attach 2 Move the...

Страница 6: ...e right side of the front panel and lightly pushing down section F fit the front panel to the lower side of the thread tension dial unit 6 While inserting the pin of the zigzag width lever into the ho...

Страница 7: ...the zigzag width to 0 2 Loosen the set screw 3 While turning the balance wheel move the zigzag width rod front until the needle bar ceases to move laterally Pull the zigzag width rod front toward you...

Страница 8: ...n socket screws of the upper shaft worm gear 3 While holding the upper shaft worm gear in place carefully turn the balance wheel to make adjustment so that lateral needle swing starts from a position...

Страница 9: ...p positions at the maximum zigzag width 1 Remove the top cover unit and set the pattern selector dial at and select the maximum zigzag width 2 Manually turn the balance wheel until the needle is broug...

Страница 10: ...equal and 0 2 mm or more at the left and right needle drop positions 1 Set the pattern selector dial at straight stitch 2 Open the face plate and loosen the hexagon socket screw 3 Move the needle bar...

Страница 11: ...needle tip is located above the top surface of the needle plate in descending travel at the right needle position 3 Slightly loosen the set screw B lightly press the stopper against the zigzag width...

Страница 12: ...wheel to lower the feed dog below the top surface of the needle plate 2 Open the top cover and set the pressure dial at 3 3 Raise the presser foot lifter loosen the set screw of the presser bar bracke...

Страница 13: ...e and the rotary hook tip and adjust the clearance between them in a range of 0 10 to 0 05 mm by vertically moving the hook setting plate 6 Turn the balance wheel toward you at the maximum zigzag widt...

Страница 14: ...he needle and the rotary hook be sure to check and adjust the backlash 1 Remove the bed cover unit Refer to page 4 2 Loosen the set screw 3 A If the backlash is too much turn the lower shaft bushing i...

Страница 15: ...g width 2 Remove the set screw of the needle plate and detach the needle plate and bobbin holder 3 Tilt the head backward and open the face plate 4 Turn the balance wheel toward you until the rotary h...

Страница 16: ...ial at and select the maximum zigzag width 3 Loosen the two set screws of the lower shaft gear 4 Turn the balance wheel toward you to move up the needle bar 3 15 to 3 45 mm from its lowest position wi...

Страница 17: ...at 3 and lower the presser foot 2 Turn the balance wheel until the feed dog comes to its highest position 3 Detach the bed cover unit 4 Loosen the set screw A and nut 5 Turn the adjusting screw so tha...

Страница 18: ...procedure 1 Remove the top cover unit and set the SS adjusting knob at a mark 2 Put a piece of paper under the presser foot and turn the balance wheel to check the needle drop position in forward feed...

Страница 19: ...between the presser foot and the feed dog and lower the presser foot lifter 3 Turn the balance wheel toward you to check if the paper is fed forward or backward 4 Loosen the set screw of the feed reg...

Страница 20: ...of the BH foot R and check the stitch density on the right and left rows 2 Remove the bed cover unit 3 Loosen the set screw of the feed cam ring with care not to move the ring laterally 4 If the righ...

Страница 21: ...r Refer to page 3 2 Loosen the set screw A 3 Make adjustment so that the plate C touches the plate D with the plate B lightly pushed in direction of E and tighten the set screw A 4 Attach the belt cov...

Страница 22: ...th a new one take the following procedure To remove 1 Remove the snap ring E 3 2 Pull out the BH lever unit from the shaft To attach 3 Pass the shaft through a new BH lever unit and fasten it with the...

Страница 23: ...the figure below and pulled upward the tension should be 85 to 115 g with the thread tension dial set at 3 1 Set the thread tension dial at 3 and pass the thread 2 Open the face plate and lower the p...

Страница 24: ...tach the thread tension dial unit To attach 4 Put the thread tension release lever into the rectangular hole in the thread tension releasing plate 2 and attach a new thread tension dial unit with the...

Страница 25: ...pushing the thread tension releasing plate 2 in direction A bring the thread tension releasing plate 1 into contact with the tension disc supporter After that tighten the set screw 4 Set the thread te...

Страница 26: ...to bring the positioning plate into contact with the roll pin of the needle bar 4 Loosen the set screw of the positioning plate 5 Adjust the threader supporter unit in the vertical direction so that...

Страница 27: ...in the vertical direction and in the direction of clearance a Adjustment in vertical direction Loosen the hook set screw tapping screw and let the pin come out by pressing the pushbutton Adjust the h...

Страница 28: ...ves in the pushbutton until the knob is brought into close contact with the pushbutton If the threader pin stops halfway avoid forcibly pushing it in because its end is caught in a hole inside the thr...

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