Seiko LD series Operator'S Manual Download | Manualshive

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From the library of: Superior Sewing Machine & Supply LLC

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Summary of Contents for LD series

Page 1: ...SEIKO im B JP M t O mid jMT IO JES JLi X 2n SSlSiD STSRM SlUMRSS 1 From the library of Superior Sewing Machine Supply LLC ...

Page 2: ... tf From the library of Superior Sewing Machine Supply LLC ...

Page 3: ...e gauge One two three and four DV X59 ft 18 to 25 22 standard Synthetic up to 2 Upper drop and needle feed LD 8 28 38 48 Needle and drop feed LD 7 27 37 47 3 to 12 stitches per inch Alternating pressers LD 8 28 38 48 Flat presser foot LD 7 27 37 47 8mm by lever 13mm by knee lifter Full automatic oiling 550 cc 270mm x 135mm 250W or 400W 2P clutch motor 50 cycle 80mm 60 cycle 65mm From the library o...

Page 4: ...relation to needles 8 Feed dog forward backward position Timing of feed dog eccentric Needle bar forward and backward position 9 Adjusting loopers position in relation to needles 10 Height of needle bar 11 Loop deflector spreader 12 Adjusting thread guide looper thread take up needle thread tension releaser 13 Replacing arm shaft connecting belt 14 Timing of vibrating presser foot 15 Gauge 16 From...

Page 5: ...pen type table Fig 3 Figure 3 represents a sewing type table so as to threading without tilting machine head Fig 3 To assemble oil pan remove latches B C Fig 4 and four sorews 1 2 Fig 4 hang both ends of latches A to out out of table and tighten latches 8 and 0 by said four screws Then place felt pads on out outs at four corners and nail them to out outs Fig 5 respectively Felt pad Table Table Fig...

Page 6: ...o and set the machine on the table Caution When putting the machine on other places than table pull up the support plate a Fig 7 so as to keep the balance of the machine Fig 6 Fig 7 Pass the rope from A to 8 and D through the V shaped groove 0 and in the order 1 to 3 Table Oil tank D D Fig 8 2 From the library of Superior Sewing Machine Supply LLC ...

Page 7: ...pt these parts described in the column B while machine is in operation Oil is distributed by centrifugal force through small jets The amount of oil flow which should be slow can be seen in the oil window B Fig 12 It can be adjusted with oil pump C Fig 11 by opening or closing it When running in keep speed at 1 800 to 2 500 R P M B Keep clean oil reservoir and pour oil in the reservoir oil pan up t...

Page 8: ...le set screws The size of the needle to be used is determined by the size of the thread which must pass freely through eye of needle Needle set screw Fig 13 THREAD Left twist thread should be used for needles and either left or right twist thread can be used for loopers THREADING LOOPERS Pass thread through threading points in the order from 1 to 9 as shown in the figure 14 Fig 14 4 From the libra...

Page 9: ...make threading easier Fig 15 Fig 16 Then pass threads in the order from 10 to 12 and draw threads 50mm and pass them loopers and return the dial to it s original position Be sure not to make cross of threads in g THREADING NEEDLES Pass threads through threading points in the order shown in the figure 18 from 1 to 10 and draw threads about 50mm Refer to Fig 21 for threading tension discs Hg 18 5 Fr...

Page 10: ...on turn them toward arrow direction m f g 21 Fig 22 REGULATING PRESSURE ON MATERIAL Always use the lightest pressure possible to allow higher working speed It can be adjusted by turning the regulating screw A Fig 23 toward arrow direction with a screw driver for more pressure and for less pressure turn it toward arrow direction B Fig 23 Before adjusting pressure open the face plate A Fig 24 and co...

Page 11: ...tch until desired length on the stitch indicator Then release the button H and turn the plunger G until it springs outwardly Then the machine is ready for operation CAUTION Be sure to operate the machine after the plunger G has sprung outwardly After determination of the stitch length adjustment for loopers page 10 and for spreader page 12 must be made v yes fM Fig 25 Fig 26 ADJUSTING LIFT OF PRES...

Page 12: ... feed dog has correctly been set securely tighten the nut and screw H Fig 30 Rg 28 Rg 29 Rg 30 TO SET FEED DOG SIDEWISE IN RELATION TO NEEDLES Remove the needle plate A Fig 31 loosen two set screws A Fig 32 C Fig 27 adjust so that needles enter into needle hole of feed dog set feeder parallel with slots of needle plate for feeder then tighten feeder For more sideways adjustment of feeder b is nece...

Page 13: ...ew driver and at the same time slight ly turn balance wheel forward then the feed lift eccentric moves backwards to make feed dog rise later To make feed dog rise earlier slightly turn balance wheel backward and after the adjustment securely tighten screws and replace the cover plate of feed bar see Fig 35 adjust needle bar rock frame so that needles descend 1 5mm from front end of needle hole of ...

Page 14: ...g 37 should also be 1 5mm B LOOPER SIDEWAY ADJUSTMENT It is so made that clearance between groove of needle and looper point is 0 05 to 0 2 mm and tighten screw N Fig 38 Feed dog Fig 36 Fig 37 Fig 38 C LOOPERS FORWARD AND BACKWARD POSITION In loopers forward and backward movement crossing point of needles and looper points should be same position in grooves of needles To adjust this remove cover p...

Page 15: ...f needle adjust so that right side of needle guard touches to side of needle Fig 44 but looper does not touch to needle and tighten screws A 8 Fig 43 Needle guard Fig 42 Fig 43 Fig 44 HEIGHT OF NEEDLE BAR Adjustment is made after locper position has been determined open face plate A Fig 46 adjust needle position so that the measurement from looper point to upper end of needle eye is 2 to 3mm Fig 4...

Page 16: ... needle when point of needle reaches to circumference of looper A Fig 48 adjust measurement between side of needle and spreader point to 1 5mm by screw B Fig 48 Spreader holder opreader Spreader sideway Fig 48 When spreader holder is at extreem left end adjust clearance between spreader point and left side of looper to 0 2 to 0 5mm by the screw 0 Fig 48 Clearance Fig 50 through which spreader poin...

Page 17: ...ve looper thread guide A Fig 53 and looper thread take up rod B Fig 53 to left or move looper thread guide downward To decrease amount of thread reverse the adjustment After the adjustment securely tighten screws Fig 52 ADJUSTING NEEDLE THREAD TENSION RELEASER Remove arm top cover lower lifting SSSSSm lever A Fig 54 loosen screw C Fi g fi 54 on collar and move the collar toward right to open tensi...

Page 18: ...rallel and vertical against slots of needle plate and feed dog In this position set screws C D Fig 56 Fig 56 ADJUSTMENT OF PRESSER HEIGHT Raise presser bar lifter A Fig 57 adjust measurement between upper surface of needle plate B Fig 57 and bottom of lifting presser foot C Fig 57 to 8mm Adjustment is made through the hole D Fig 57 by presser bar lifting bracket screw after removing rubber stopper...

Page 19: ...ched to feed dog To adjust this remove side cover plate A Fig 59 loosen screw A Fig 60 move lifting eccentric B Fig 60 to left then vibrating presser foot reaches to needle plate faster than needle if moves to right it becomes slower Amount of lift of vibrating presser foot and lifting presser foot should normally be equal height Adjustment is made by screw B Fig 59 Fig 59 Fig 60 From the library ...

Page 20: ... 3 4 to 2 B 3 16 Mimmum A Needle bar thread guard B Needle clamp C Vibrating presser foot u tranap narts for instance from D Lifting presser foot 2 When 0 four needle e Needle plate rohine or vioeversa needle thread tension p Feed dog r e s t rh e a Nnrne dl harrusf b re aoe iradditrrthrs Tarts lnTionrd in the 4 When exchanging needle guage to bed plate and bed plate slide must be replaced From th...

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