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Yamato VFK2560-8, Инструкция по эксплуатации

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Thank you for having purchased the Model VFK2560-8 class.

Before using  your  VFK2560-8  class, please read  the instruction manual and 
understand the contents well. 

After reading  the instruction manual, please keep it in a location  where it is 

easily accessible to the operator.

Instruction Manual

4 NEEDLE HIGH SPEED FLATBED FLATSEAMER

VFK2560-8

 class

Содержание VFK2560-8

Страница 1: ...our VFK2560 8 class please read the instruction manual and understand the contents well After reading the instruction manual please keep it in a location where it is easily accessible to the operator Instruction Manual 4 NEEDLE HIGH SPEED FLATBED FLATSEAMER VFK2560 8 class ...

Страница 2: ...of pulley 1 1 4 Lubrication 12 4 1 Lubricating oil 12 4 2 Lubricating 12 4 3 Changing oil 13 4 4 Checking and replacing oil fileter 13 5 Proper operation 14 5 1 Opening and closing covers 14 5 1 1 Semi submerged type table supplimentary table 14 5 1 2 Full submerged type table 14 5 2 Needle system 15 5 3 Installing needles 15 5 4 Threading 16 5 5 Adjusting thread tension 17 5 6 Pressure of presser...

Страница 3: ...ront 37 6 11 Height of feed dog 37 6 12 Needle and spreader 38 6 12 1 Spreader 38 6 12 2 Top cover thread guide 39 6 12 3 Top cover thread eyelet 39 6 12 4 Top cover thread pusher 40 6 13 Replacing presser foot 41 7 Specifications 43 Attention The parts used for this product are subject to change without notice If such a change is made any part of the contents and illustrations of this instruction...

Страница 4: ...mato SF oil as specified 3 Never put your hand under the needle or near the moving parts of the machine when turning on power supply switch １ To ensure safe use Always observe the following instructions to en sure the safe use of the industrial sewing ma chines and devices 1 1 Application and purpose The sewing machine is designed to improve pro ductivity in the sewing industry and must not be use...

Страница 5: ...o you and others Caution indicates hazardous situations which if not heeded may result in minor or moderate injury to you and others or may result in ma chine damage NOTE is used to emphasize essential informa tion 4 When operating a new sewing machine make sure the rotating direction of pulley agrees with the rotating direction mark 2 5 During operation 1 Be sure to operate the sewing machine wit...

Страница 6: ...removal of the safeguards and works except for sewing per formance while the power supply switch is on are prohibited For details see the next page High voltage applies in the control box This label indicates that electric shock may be caused This label is affixed on the safeguards Considering the operation it is not affixed on the finger guard and eye guard Be sure to operate with the finger guar...

Страница 7: ...ainst it Knife mechanism As the knife trimming mechanism is moving to the right and left while sewing if your hand holding the fabric comes close to the mechanism your hand may be in danger of being struck or pinched in the gap below Knife mechanism Rotating direction symbol ...

Страница 8: ...e up Needle bar cover Presser spring regulator Presser foot height adjuster Needle thread take up guard Feed regulating pushbutton Side cover Differential feed graduation HR cup Presser foot Chip guard Lap former Supporting plate for looper thread take up Front cover Oil sight gauge Looper thread take up cover Thread tension spring cap ...

Страница 9: ...rged type 2 1 1 Table cutting diagram 2 Installation Fig 2 1 Standard Table dimensions 1200 595 40 Operator center of pulley Refer to the instruction manual of the motor for dimensions A B C and D Section Y Y 1 2 Section X X 1 2 ...

Страница 10: ...in the supporting board and cover the screws with the rubber cushions Fix the the supporting board to the machine table and install a machine securely on the rubber cushions The number of spacers sewing machine machine table Fig 2 3 Thickness of table The number of spacer 40 3 pcs 4 12 pcs 45 2 pcs 4 8 pcs 50 1 pc 4 4 pcs Table 1 ...

Страница 11: ...ntary table stay lower and stay upper to the same height as the base of adjustable feet and join them using the screw Installation Place the supplementary table on the machine and anchor it to the machine table using the wood screws at the position where the supplementary table stays press down on the adjustable foot at the rear left Tighten the wood screws so that the supplementary table stays tu...

Страница 12: ... Table dimensions 1200 595 40 Operator 3 φ 9 5 installing hole of motor Section H H magnet magnet magnet Section G G Section F F Section E E Refer to the instruction manual of the motor for dimensions A B C and D Magnet Shown in the diagram are the reference positions where the magnet catches are to be installed ...

Страница 13: ...rting board Table Supporting board 155 in the above figure is the distance to the bottom of the supporting board so it must be set to the dimension where there will be no interference between the motor control panel and the bottom and back end of the supporting board thickness 35 ...

Страница 14: ... a machine correctly referring to Figs 2 11 and 2 12 Set the screws in the supporting board and cover the screws with the rubber cushions Fix the the supporting board to the machine table and install a machine securely on the rubber cushions Fig 2 12 machine table ...

Страница 15: ...pplicable the sewing machine will be over maximum and it can cause the damage to the machine Servomotor Use a servomotor with 500 W or more Calculate the outside diameter of a motor pulley from the formula as below Or see Table 3 to select a proper motor pulley Outside diameter Usual sewing speed of motor pulley Servomoter speed Belt Use an M type V belt See Table 2 for belt size 58 5 Fig 2 13 M t...

Страница 16: ... the M type of V belt 1 Hang the belt on the machine pulley and then on the motor pulley while rotating the machine pulley 2 Adjust the belt tension so that the belt has a slack of 10 20 when its center is pushed with 10 N 3 Lock the motor with the adjusting bar Before hanging belt ALWAYS turn the power switch OFF and check that the machine has already stopped Set the belt cover Fig 2 15 2 6 Threa...

Страница 17: ...head cover with the screws 2 Connect the dust hose to the suction pipe 3 When using an air compressor connect the air tube to the nozzle at the end of the suction pipe Make separate arrangements to provide the dust bag air regulator air valve and other parts 2 Installation ...

Страница 18: ...peed about 15 20 lower than maximum speed during the first 200 hours for about one month so that a machine can offer a long service life in good condition The rotating directions of the machine pulley and the handwheel are clockwise as shown in the figure Fig 3 1 If rotated in reverse direction oil cannot be supplied properly It can cause the damage to the machine ...

Страница 19: ... sight window while running a machine If oil does not splash from the nozzle see 4 4 Checking and replacing oil filter on page 13 Too much or insufficient oil can cause oil leakage and machine trouble Be sure to keep the oil level between the lines Also too much lubrication can cause the oil scatter and material stain Fig 4 1 Fig 4 2 Fig 4 3 Never add additives to the oil If added it can cause the...

Страница 20: ...r removing screw oil is drained If the oil filter is clogged with dust lubrication cannot be done properly Remove the oil filter cap and the oil filter to check them every six months If clogged or cracked clean or replace the oil filter If oil is splashed from the nozzle insufficiently or includes many bubbles though the oil is sufficiently kept check or replace the oil filter Fig 4 4 6 Reset the ...

Страница 21: ...ged type table supplementary table 5 1 2 Full submerged type table Pull the supplementary table toward you and remove it Turn the supplementary table stays to the left The side cover will now open sufficiently Open the covers Lift the auxiliary table and remove it Open the covers To prevent the supplementary table from overturning first return the supplementary table stays to their original positi...

Страница 22: ... 1 Loosen the screws with a screwdriver Fig 5 4 2 Remove an old needle with a pair of tweezers 3 Insert a new needle into the needle clamp as far as it will go with facing its scarf to the right back Figs 5 5 and 5 6 4 Tighten the screws with a screwdriver 5 3 Installing needles Table 4 Fig 5 4 Fig 5 6 Fig 5 5 Tighten the screws with a tightening torque of 0 6 N m ＮＯＴＥ Before installing ALWAYS tur...

Страница 23: ...eedle in the inmost position as shown in the figure When threaded rethread after knotting preset threads When not threaded thread correctly as shown in Fig 5 7 Incorrect threading can cause skip stitch thread breakage or uneven seam A B C D Needle thread E Top cover thread F Looper thread Looper thread and top cover thread Pull the thread until the knot is out Then cut off the knot Fig 5 7 for str...

Страница 24: ...ewing conditions To tighten the thread tension turn them clockwise To loosen the thread tension turn them counterclockwise Loosen the lock nut and adjust the pressure of the presser foot by turning the adjusting screw To increase the pressure turn it clockwise To decrease the pressure turn it counterclockwise Keep the pressure as low as possible for stable sewing performance Fig 5 8 Fig 5 9 Decrea...

Страница 25: ...r foot spring plate Reduction of vibration and noise Available for fine adjustment of lapped fabric width Adjusting Adjust the clearance between the presser foot spring plate and the bottom of the presser foot The clearance which was set at shipment is 0 3 To adjust loosen the lock nut and turn the adjusting screw To lower the pressure turn it clockwise To raise the pressure turn it counterclockwi...

Страница 26: ...ng To obtain reverse differential feed lower the differential lever left below the graduation When it is set at S the ratio of main feed to differential feed is 1 0 6 3 Adjustment of differential feed during operation To adjust differential feed during operation connect the chain to the differential lever left Fix stop 2pcs at the desired position to set upper and lower limits between which the di...

Страница 27: ...tion of the pulley with the mark on the machine 3 Release the pushbutton To decrease stitch length turn the pulley in the direction S To increase stitch length turn the pulley in the direction L Stitch length can be adjustable from 1 4 to 3 6 Table 6 shows the number of stitches per inch 25 4 and 30 converted to the stitch length Check that push button is released completely and the pulley rotates...

Страница 28: ...and the lower fabric increases Back and forth position In the standard position the lap former slide block touches and stops at the stitch plate According to the fabric thickness loosen the screw and adjust the position slightly toward the operator 5 10 Height of lower knife Before operating ALWAYS turn the power switch OFF and check that the machine has already stopped Fig 5 17 The lower knife he...

Страница 29: ...o 0 5 when the upper knife is at the extreme left Fig 5 20 The amount of the upper fabric overlap differs depending on the right and left position of the lower knife When the lower knife is moved to the right the upper fabric overlap decreases When the lower knife is moved to the left the upper fabric overlap increases Changing the position of the lower knife the engagement of the upper knife is r...

Страница 30: ...de of the presser foot is parallel to the slots of the stitch plate If adjustment is required refer to 6 13 Replacing presser foot 2 Reduce the pressure of the presser foot to check whether the presser foot moves up and down smoothly and to check that there is no play at the left or right If adjustment is required refer to 6 13 Replacing presser foot 3 Adjust the differential feeding so that the f...

Страница 31: ...tion Back and forth right and left positions To ensure that the waste can be sucked up with as low a force as possible bring the suction pipe as close to the presser foot as possible without touching it Use the screw each 2 pcs to make this adjustment Suction force Set to the lowest force with which the waste can be sucked up If the suction force is too high the stitch finish will be uneven or the...

Страница 32: ...nthetic thread and or synthetic fabric Use dimethyl silicon oil Note Check the oil amount after opening the oil container plug of HR device If not enough supply the oil Check the oil amount in SP tank If not enough supply the oil into the hole 1 When not using SP or HR device remove the felt or If attached It may occur irregular condition during sewing 2 If silicone oil is attached to the parts ot...

Страница 33: ...ng Check that the thread hanger is right above the soopl seat discs of the thread stands the thread stands should be fixed securely 2 Check the lubricating and silicone oil amount Supply them if necessary 3 Check the order of threading 4 Check the bend of needles damage to tips and the setting positions respectively 5 Check the sharpness of knives 6 Check the seam by testing sewing of fabric stitc...

Страница 34: ...is tightened When the needle thread eyelets is moved toward L the needle thread is loosened The standard positions of the needle thread eyelets are as follows Left needle 35 Left inside needle 35 Right inside needle 25 Right needle 25 Adjust the positions using the screws Move the needle thread eyelet holder loosen the screws and adjust the needle thread tension When the holder is moved toward T t...

Страница 35: ...ion where the top cover thread which passes through the top cover thread eyelet upper and top cover thread eyelet lower touches the right edge of the slot of the top cover thread take up without bending when the top cover thread take up has reached the far right When the top cover thread eyelet upper is moved to the right the take up amount increases When the top cover thread eyelet upper is moved...

Страница 36: ...th mark of the cast off plate as standard Loosen the screws and move each eyelet to adjust it To increase take up amount move the thread take up eyelets forward To decrease take up amount move the thread take up eyelets backward Too much take up of the looper thread can cause skip stitch For strechable thread Move the thread take up eyelets frontward fully and never thread it through the supplemen...

Страница 37: ...Fig 6 8 thread Non use of retainer standard When the left needle lowers from the highest point and meets a half of the looper the thread comes off from the top of the looper thread take up Loosen the screws to adjust it Use of retainer When the retainer lowers from the highest point and meets a half of the looper the thread comes off from the top of the looper thread take up Loosen the screws to a...

Страница 38: ...r adjusting push down the lifter lever fully to check the height of the presser foot Fig 6 11 Fig 6 12 6 4 Height of presser foot 5 0 6 5 Replacing presser foot spring plate Fig 6 13 Removing 1 Remove the screws 2 Remove the presser foot spring plates from the presser foot 3 Remove each plate from the spring plate holder Resetting 1 Reset each presser foot spring plate with the spring plate holder...

Страница 39: ...ssure move the collar upward To decrease the pressure move the collar downward Removing 1 Loosen the screws and then remove the upper knife 2 Loosen the screw then remove the lower knife Resetting 1 Reset the lower knife with the screw 2 Reset the upper knife with the screw See 5 12 Adjusting lapped width of upper fabric for engagement of the knives 3 Adjust the knife holder guide collar referring...

Страница 40: ...en the screw and adjust the needle bar in the vertical direction so that the tip of the left needle is the height H given in the table 7 from the stitch plate top surface Fig 6 17 4 Check the needle drops in the center of the needle hole on the stitch plate then tighten the screw Fig 6 19 5 Reset the seal plug Remove the retainer and middle of two needles easily to check the relation between needl...

Страница 41: ...d height of looper Insert the looper into the looper holder fully and tighten the screw securely It makes the height and installing angle 0 Fig 6 20 Fig 6 21 6 8 2 Distance between looper and needle 5 5 5 5 5 7 Ｍ 6 Adjustments Table 8 Fig 6 22 Needle distance Looper s distance Ｍ 5 2 2 9 3 1 6 0 2 5 2 7 The distance M between the looper tip and the center of the right needle differs according to th...

Страница 42: ...Fig 6 23 Adjust so that the looper tip makes 0 0 05 contact with the needle when the looper is moved from the far right to the left and its tip meets to the center of the right needle This adjustment is done after loosening the screw Fig 6 24 0 0 05 6 Adjustments ...

Страница 43: ...t Back and forth position of needle guard rear Loosen the screws and and adjust so that the conditions below are satisfied at the same time 1 Push the needle with the needle guard rear so that the clearance between the needle and looper is adjusted to between 0 0 05 when the looper tip has reached the center of the right needle 2 The clearance between the second needle from the right and the needl...

Страница 44: ...erential feed dog and the main feed dog and the height from the top of the stitch plate to their tops to 1 0 1 2 Fig 6 29 1 0 1 2 6 10 2 Needle guard front Make the clearance between right needle and the needle guard front to 0 0 05 respectively when the looper tip comes at the centers of the right needle Loosen the screw to adjust it Fig 6 28 0 0 05 6 Adjustments ...

Страница 45: ...rd from the right needle within adjustable range based on the needle distance ＨＩＮＴ Up down position of the spreader holder should be aligned with the bottom end of the spreader bar stitch plate Standard Use of retainer 1 Loosen the screws and Fig 6 32 2 Make the height from the top of the stitch plate to the bottom of the spreader to 10 5 11 0 Fig 6 31 and 6 32 3 Make the clearance between the lef...

Страница 46: ...cover thread eyelet to suit the thread to be used Provide a clearance of 0 8 between the bottom of the top cover thread guide and top of the spreader and tighten the screw at the position where the hook a is aligned with the edge b of the hole of the top cover thread guide as seen from above when the spreader has reached the far right end Checking when sewing Check that the spreader moves from lef...

Страница 47: ...of the top cover thread guide when the needle bar is at the highest point 2 The clearance between the right needle and the top cover thread pusher is between 2 5 3 0 when the top cover thread pusher has reached the extreme left Top to bottom position Provide a clearance of 1 between the top cover thread pusher and top of the top cover thread guide Check that the top cover thread pusher and the top...

Страница 48: ...2 6 Adjustments Fig 6 40 Fig 6 41 3 Loosen the screw and while raising the upper knife holder guide collar slightly pull until the tip of the upper knife separates from the presser foot 4 Loosen the presser spring regulator 5 Remove the presser foot guide left Fig 6 43 Fig 6 44 6 Loosen the screw of the presser foot Fig 6 45 Just loosen the screw and leave it in the sew ing machine i 1 ...

Страница 49: ...ep lowering the needle and check that the needle arrives at the center of the needle hole of the presser foot Also check whether the side of the presser foot and the slots of the stitch plate are parallel 6 Return the upper knife to its original position For details on engaging the upper and lower knives refer to 5 12 Adjusting lapped width of upper fabric and 5 13 Adjusting lapped of fabric 7 Adj...

Страница 50: ...d 10 65 75 Needle distance 4 needle 5 2 6 0 Needle stroke 31 Presser foot lift 5 0 from the top of the stitch plate to the bottom of the presser foot Feed regulation Pushbutton system Differential ratio Max normal differential 1 1 6 Max reverse differential 1 0 6 Differential feed regulation external lever even during operation Lubrication Automatic lubrication by trochoid shaped pump Lubricating ...

Страница 51: ......

Страница 52: ...KIT A KU OSAK A JAP AN T E L 81 6 636 4 5621 F A X 81 6 6365 7185 ５３０ ００４７ 大 阪 市 北 区 西 天 満 4 丁 目 4 番 1 2 号 TEL ０６ ６３６４ ５６２１ 代 FAX ０６ ６３６５ ７１８５ P N 9720346 Ｉ No 5 Edited in 2010 12 Printed in Japan 2010 12 1H I VFK2560 8 ...

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