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From the library of: Superior Sewing Machine & Supply LLC

Summary of Contents for ZJ2628-1

Page 1: ...ZJ2628 1 CYLINDER BED COMPOUND FEED LOCKSTITCH SEWING MACHINE OPERATING INSTRUCTIONS From the library of Superior Sewing Machine Supply LLC ...

Page 2: ...he factory the machine parts are coated with rust preventive grease which may be hardened and contaminated by dust during storage and shipment This grease must be removed with gasoline 2 Examination Although each machine is confirmed strictly and test before leaving the factory the machine parts may be loose or deformed after long distance transportation with jolt A thorough examination must be pe...

Page 3: ...eck oil distributing condition through Oil Check Wmdow C 4 Perform run in operation at 1000 1500spm for 30 minutes After a lapse of one month of service during which the working speed is increased gradually and the machine runs sufficiently well the high speed 2000spm can be adopted according to the nature ofthe work 1 1 THREADING Fig 6 To thread the needle thread raise needle bar to the upper end...

Page 4: ...hown in Fig 7 b move the bracket rightward but if thread is wound as shown in Fig 7 c move the bracket leftward After adequately positioning the bracket tighten Set Screw B 3 Do not overfill the bobbin The optimum length of thread will fill about 80 of bobbin capacity This can be adjusted by adjusting Screw E ofbobbin winder stop latch 1 9 SET STITCH LENGTH AND REVERSE FEEDING Fig 8 1 Stitch lengt...

Page 5: ... weak or bobbin thread tension is too strong as shown in Fig 9 c tum the thumb nut clockwise to increase the needle thread tension or loosen the tension spring regulating screw of bobbin case to decrease the bobbin thread tension Itt ADJUST THREAD TAKE UP SPRING Fig t2 Adjustment ofthe thread take up spring stroke Loosen the stopper screw B and move the regulating ring C leftwards to decrease the ...

Page 6: ...dle B and normally the measurement between the hook point and the upper end of the needle eye C should be 2 2 4mm further the clearance between the hook point and the needle hoUow should be about 0 05 to O lmm 113 REPLACE ROTATING HOOK Fig 15 1 Lift needle bar to the highest position of its stroke and remove needle and bobbin case 2 Loosen screw of needle plate A take down the needle plate A 3 Loo...

Page 7: ...s slightly separate from the needle plate loosen screw E and depress the presser foot A to reach needle plate and then tighten the screw E To decrease vibrating heighl of the walking foot B and increase vibrating height of the presser foot A Turn balance wheel until the walking foot B is slightly separate from the needle plate loosen screw E and depress the walking foot B to reach needle plate and...

Page 8: ...hat needle can be descended to the center ofthe needle hole ifnot adjust it as follows 1 Remove the arm side cover and loosen the screw A 2 Holding the needle bar and move it to the center of the needle hole in the feed dog the tighten screw A and replace the arm side cover 3 Time feed motion to needle motion Fig 22 The standard timing of feed motion to needle motion is that the feed dog starts mo...

Page 9: ...Remove the throat plate and clear off the dust and lint between the feed and teeth slots 2 Cleaning rotating hook Swing out the machine head and clean the hook Wipe the bobbin case with soft cloth 8 From the library of Superior Sewing Machine Supply LLC ...

Page 10: ...PARTS LIST 9 From the library of Superior Sewing Machine Supply LLC ...

Page 11: ...1 ARM BED AND ITS ACCESSORIES 10 From the library of Superior Sewing Machine Supply LLC ...

Page 12: ...hread tension stud 1 27 05 01 007C3 Tension regulating nut 1 28 73Tl 002C1 Thread tension spring 1 29 05 01 007C4 Thread tension releasing disc 1 30 05 0 l 007C5 Thread tension disc 2 31 05 01 007C6 Stop disc 1 32 05 0l 007C7 Pin 1 33 05 01 007C8 1 Thread controller disc 1 34 05 01 007C8 2 Thread controller plate 1 35 05 01 007C9 Screw 1 36 05 01 007C10 Thread tension release plate 1 37 05 01 007C...

Page 13: ...2 NEEDLE BAR AND TAKE UP MECHANISM 12 3 v lll r I fi r v From the library of Superior Sewing Machine Supply LLC ...

Page 14: ...ck shaft 1 16 05 02 00982 Crank Left 1 17 GB117 Pin for crank 1 18 05 02 00983 Slide block for needle barrock frame 1 19 05 02 00984 Position bracket l 20 72T2 003 Screw l 21 05 02 010 Needle bar rock frame 1 22 05 02 011 Hinge pin 1 23 22T2 002 Screw 1 24 05 02 012 Needle bar 1 25 04 02 004 Thread guide for needle bar 1 26 04 02 005 Screw 1 27 Needle 1 28 22T2 017 Needle clamp screw 1 29 05 02 01...

Page 15: ...3 ARM SHAFf AND VERTICAL SHAFT MECHANISM i5 i 1 3 I l jb b I I I 1 1 From the library of Superior Sewing Machine Supply LLC ...

Page 16: ... 008 Set screw 1 13 09 03 001B1 Feed lifting eccentric 2 14 22T2 002 Set screw 1 15 09 03 001B3 Baffie plate 3 16 04 01 017 Set screw 1 17 09 03 001B2 Feed link lever 1 18 22Tl 01l Screw 1 19 05 03 003 Vertical shaft 1 20 22T3 010E2a1 2 Bevel gear for arm shaft 1 21 22T3 010E2a2 2 Bevel gear for vertical shaft Upper 8 22 22T2 005B3 Set screw 1 23 22T3 01OE2b1 2 Bevel gear for hook shaft 1 24 22T3 ...

Page 17: ...4 liOOJ SlfAFT MEClfANISM r J 8 II From the library of Superior Sewing Machine Supply LLC ...

Page 18: ...9 86 Pin 2 6 13 04 009 Set screw 2 7 13 04 002 Hook shaft bushing left 1 8 09 04 009 Hook shaft bushing right 1 9 22Tl Oll Set screw 2 10 13 04 003 Feed lifting internal gear 1 11 13 04 004 Cam plate 1 12 13 04 005 Cover plate l 13 13 04 006 Gasket for cam plate 1 14 13 04 007 Outside cover plate I 15 13 04 008 Set screw 2 1 7 From the library of Superior Sewing Machine Supply LLC ...

Page 19: ...5 STITCH LENGTH REGULATING MECHANISM 18 From the library of Superior Sewing Machine Supply LLC ...

Page 20: ... 11 04 06 002 Feed regulator screw bar 1 12 22T5 006C4 0 ring 2 13 22T5 006C2 Dial 1 14 22T5 006C3 Screw 1 15 72T5 005 Rubber plug 1 16 22T5 008 Stopper pin 1 17 22T5 009 Spring for stopper pin 1 18 72T5 006C1 ReYerse feed lever 1 19 05 06 002D1 Reverse feed lever shaft 1 20 22T5 01002b 0 ring 1 21 22T5 01003 Screw 1 22 22T5 001A4 Screw 2 23 22T5 011 Washer 1 24 22T5 012El Reverse feed crank 1 25 ...

Page 21: ...6 FEED LIFTING MECHANISM 20 From the library of Superior Sewing Machine Supply LLC ...

Page 22: ...k shaft 1 24 09 06 015 Feed rock shaft crank Right 1 25 22T6 001A1 b Screw 1 26 08 03 0040 14 Pin for crank link lever 1 27 22Tl Oll Set Screw 1 28 09 06 016 Crank Lower 1 29 22Tl Oll Set screw 2 30 09 06 018 Hinge pin 1 31 09 06 024 Feed regulator crank 1 32 09 06 022 Hinge pin Long 1 33 09 06 021 Hinge pin Short 1 34 22Tl Oll Set screw 2 35 08 03 004012 Crank link lever Long 2 36 08 03 00409 Cra...

Page 23: ...7 PRESSER FOOT MECHANISM 22 From the library of Superior Sewing Machine Supply LLC ...

Page 24: ...release slide 1 13 05 07 010 Bracket for presser bar spring 1 14 05 07 021 Screw 1 15 09 07 001 Out presser foot 1 16 05 07 013 Screw 1 17 05 07 014 Presser bar spring Flat I 18 05 07 015 Screw 1 19 05 07 016 Knee lifter lifting lever 1 20 22T7 005 00I Screw 1 21 05 07 017 Retracting spring for lever 1 22 05 07 018 Retracting spring bracket 1 23 22T9 001A9 Screw 1 24 22T9 001A10 Nut 1 25 05 07 019...

Page 25: ...8 PRESSER LIFTING MECHANISM 24 From the library of Superior Sewing Machine Supply LLC ...

Page 26: ...ck shaft bushing Right 1 14 22Tl Oll Screw 2 15 05 08 008 Hinge pin 1 16 05 08 009 Hinge pin nut 1 17 05 08 010 Lifting bell crank link 1 18 05 08 011 Lifting bell crank 1 19 05 08 012 Presser lifting link 1 20 05 08 013 Vibrating presser bar 1 21 09 08 001 Vibrating presser foot 1 22 22T2 004 Screw 1 23 05 08 015 Vibrating presser bar spring 1 24 05 08 016 Spring guide rod 1 25 05 08 017 Adjustin...

Page 27: ...9 LUBRICATING MECHANISM r 1 s I I I I I I I I I I L ________ I I L 26 r r i I _ _ j 1 From the library of Superior Sewing Machine Supply LLC ...

Page 28: ...r oil pump ll 1 6 Ol 08 001A7 Oil pump cover l 7 llH8 008B Oil pump screen l 8 11H8 010 Setscrew 3 9 22T4 007C2 Pipe connection 3 10 01 08 002 Oil pump body plate 1 11 22T2 019 Screw 3 12 22T2 019 Set screw 3 13 GB70 Set screw 3 14 12T8 002B1 Oil pipe 1 15 05 09 001 Oil pipe for arm shaft 1 16 01 08 004 Pipe holder for arm shaft 1 17 12T2 003 Set screw 1 7 From the library of Superior Sewing Machi...

Page 29: ...10 OIL RESERVOIRAND OTHER ACCESSORIES r o I I A I 1 i r I I I I U l I I 1 28 From the library of Superior Sewing Machine Supply LLC ...

Page 30: ...T9 001A10 Lock nut 2 15 22T9 003B2 Knee lifter bell crank 1 16 22T9 003B3 Joint for knee lifter bell crank 1 17 721 9 018 Set screw 2 18 22T9 003B5 Knee lifter plate 1 19 22T9 003B6 Bracket for knee lifter plate 1 20 22T9 003B7 Set screw 1 21 22T9 003B8 Pad for knee lifter plate 1 22 01 09 006 Rubber cushion 4 23 01 09 007 Pin 4 24 01 09 008 Bracket 324 1 25 01 09 008 Bracket 294 1 26 GB93 Washer ...

Page 31: ... 1 2 22T9 017 Oil container 1 3 22T9 018 Vmylcover 1 4 01 09 009 Wrench 1 5 Needle 4 6 22T9 0ll Oiler 1 7 22T9 012 Magnet 1 8 72T9 007 Screw driver Long 1 9 72T9 020 Screw driver Medium 1 10 72T9 021 Screw driver Short 1 30 From the library of Superior Sewing Machine Supply LLC ...

Page 32: ...6D10 Rivet 2 9 22T9 006D 11 Screw 1 10 22T9 006D12 Bobbin winder stop latch 1 11 22T9 006D13 Adjusting screw 1 12 22T9 006D 14 Stopper block 1 13 22T9 006D15 Fi 1ure for stopper block 1 14 22T9 006D16 Set screw 1 15 22T9 006D17 Bobbin winder tension bracket 1 16 22T9 006D18 Bobbin winder tension stud 1 17 22T9 006D19 Bobbin winder tension disc 2 18 22T9 006D20 Tension stud bushing 1 19 22T9 006D2l...

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