ZOJE ZJ2628, Operating Instruction

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

Page 2: ...achine 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 performed after cl...

Page 3: ...eck oil distributing condition through Oil Check Window C 4 Perform run in operation at I000 500spm 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 of the work I7 THREADING Fig 6 To thread the needle thread raise needle bar to the upper end...

Page 4: ...s shown 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 of bobbin winder stop latch a 19 SET STITCH LENGTH AND REVERSE FEEDING Fig 8 I Stitch ...

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 he tension spring regulating screw of bobbin case to decrease the bobbin thread tension ju ADJUST THREAD TAKE UP SPRING Fig l2 Adjustment of the thread take up spring stroke Loosen the stopper screw B and move the regulating ring C leftwards to decrease the s...

Page 6: ...hould be at the center of the needle B and normally the measurement between the hook point and the upper end of the needle eye C should be 2 2 4mrn further the clearance between the hook point and the needle hollow should be about 0 05 to O lmm 1 Lift needle bar to the highest position of its stroke 2 Remove the throat plate and feed dog take down needle and bobbin case 3 Loosen Screw C of hook po...

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 height 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: ...ot adjust it as follows l 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 2l The standard timing of feed motion to needle motion is that the feed dog starts moving forward when the needlepoint reaches the needle plate surf...

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 arid clean the hook Wipe the bobbin case with soft cloth From the library of Superior Sewing Machine Supply LLC ...

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

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

Page 12: ...ion regulating nut 1 28 73Tl 002C1 Thread tension spring 1 29 05 01 007C4 Thread tension releasiiig disc 1 30 05 01 007C5 Thread tension disc 2 31 05 01 007C6 Stop disc 1 32 05 01 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 007Cil Screw 2 38 05 01 007C12 Thread tensio...

Page 13: ...2 NEEDLE BAR AND TAKE UP MECHANISM v From the library of Superior Sewing Machine Supply LLC ...

Page 14: ... shaft I 16 05 02 009B2 Crank Left 1 17 GBI17 Pin for crank l 18 05 o2 009B3 Slide block for needle bar rock frame 1 19 05 02 009B4 Position bracket I 20 72T2 003 Screw 1 21 05 02 010 Needle bar rock frame I 22 05 02 0ll Hinge pin 1 23 22T2 002 Screw I 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 I 29 05 02 014...

Page 15: ...3 ARM SHAFT AND VERTICAL SHAFT MECHANISM From the library of Superior Sewing Machine Supply LLC ...

Page 16: ...8 Set screw 1 13 09 03 00I B1 Feed lifting eccentric 2 14 22T2 002 Set screw 1 15 09 03 001 B3 Baflle plate 3 16 04 01 017 Set screw 1 17 09 03 001B2 Feed link lever 1 18 22Tl Oll Screw 1 19 05 03 003 Vertical shaft 1 20 22T3 010E2a1 2 Bevel gear for arm shaft 1 21 22T3 0l OE2a2 2 Bevel gear for vertical shaft Upper 8 22 22T2 005B3 Set screw 1 23 22T3 010E2b1 2 Bevel gear for hook shaft 1 24 22T3 ...

Page 17: ...4 HOOK SHAFT MECHANISM From the library of Superior Sewing Machine Supply LLC ...

Page 18: ...3 Rotating hook complete 1 7 Bobbin case 1 8 22T4 017 Bobbin 1 9 09 04 004 Collar for hook shaft Left 1 10 09 04 002Al Collar for hook shaft Right 1 11 09 04 009 Hook shaft bushing Right I 12 22Tl Oll Set screw 2 13 09 04 006 Hook shaft bushing Left 1 14 22T6 001Alb Set screw 2 15 09 04 003 Rotating hook positioner 1 16 09 04 005 Set screw 2 I ji II 17 From the library of Superior Sewing Machine S...

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

Page 20: ...l 04 06 002 Feed regulator screw bar I 12 22T5 006C4 0 ring 2 13 22T5 006C2 Dial I 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 006CI Reverse feed lever 1 19 05 06 002DI Reverse feed lever shaft 1 20 22T5 01OD2b 0 ring 1 21 22T5 010D3 Screw 1 22 22T5 001A4 Screw 2 23 22T5 0il Washer 1 24 22T5 012EI Reverse feed crank 1 25 22...

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

Page 22: ...ft crank Left 1 21 09 06 013 Slide bar I 22 22Tl Oll Screw 2 23 09 06 014 Feed rock shaft I 24 09 06 015 Feed rock shaft crank Rigbt I 25 22T6 001Alb Screw I 26 08 03 004014 Short pin for crank link lever 1 27 22T1 0ll Screw I 28 09 06 016 Crank Lower 1 29 22Tl Oll Set screw 2 30 09 06 018 Hinge pin 1 31 08 03 00407 Feed regulator crank 1 32 09 06 022 Hinge pin Long 1 33 09 06 021 Hinge pin Short ...

Page 23: ...7 PRESSER FOOT MECHANISM 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 I 15 09 07 001 Out presser foot 1 16 05 07 013 Screw I 17 05 07 014 Presser bar spring Flat 1 18 05 07 015 Screw 1 19 05 07 016 Cneelil erliftinglever 1 20 22T7 005 001 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 00 lAl 0 Nnt 1 25 05 07 019 ...

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

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

Page 27: ...9 LUBRICATING MECHANISM 3 r 26 I I I I I I I I L J From the library of Superior Sewing Machine Supply LLC ...

Page 28: ...oil pump II I 6 Ol 08 00IA7 Oil pump cover I 7 11H8 008B Oil pump screen I 8 11H8 0IO Set screw 3 9 22T4 007C2 Pipe connection 3 10 01 08 002 Oil pump body plate 1 11 22T2 0I9 Screw 3 12 22T2 019 Set screw 3 13 GB70 Set screw 3 14 72T8 002Bl Oil pipe I 15 05 09 001 Oil pipe for arm shaft I 16 OI 08 004 Pipe holder for arm shaft I 17 72T2 003 Set screw I 27 From the library of Superior Sewing Machi...

Page 29: ...lO OIL RESERVOIR AND OTHER ACCESSORIES 28 From the library of Superior Sewing Machine Supply LLC ...

Page 30: ...22T9 00IAIO Locknut 2 15 22T9 003B2 Knee lifter bell crank I 16 22T9 003B3 Joint for knee lifter bell crank I 17 72T9 0 8 Set screw 2 18 22T9 003B5 Knee lifter plate I 19 22T9 003B6 Bracket for knee lifter plate I 20 22T9 003B7 Set screw 1 21 22T9 003B8 Pad for knee lifter plate I 22 01 09 006 Rubber cushion 4 23 01 09 007 Pin 4 24 01 09 008 Bracket 324 I 25 01 09 008 Bracket 294 I 26 GB93 Washer ...

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

Page 32: ... 006Dl0 Rivet 2 I 9 22T9 006D11 Screw 1 10 22T9 006D12 Bobbin winder stop latch I ll 22T9 006Dl3 Adjusting screw 1 12 22T9 006Dl4 Stopper block 1 13 22T9 006Dl5 Fixture for stopper block 1 14 22T9 006D16 Set screw 1 15 22T9 006D17 Bobbin winder tension bracket 1 16 22T9 006Dl8 Bobbin winder tension stud 1 17 22T9 006D19 Bobbin winder tension disc 2 18 22T9 006D20 Tension stud bushing I 19 22T9 006...