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Yamato VG3511-8F, Инструкция по эксплуатации

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28

VG3511-8F

6. Adjustments

Fig. 6-20

6.9 Needle and needle guard(rear)

Fig. 6-22

Fig. 6-21

(1)  Turn  the  handwheel  clockwise  to  lower  the  needles  at 

the lowest points.

(2) Loosen the screw ① .

(3) Align the line ③ on the needle guard(rear) ② with the 

centers of the needle eyes.

(4) Tighten the screw ① securely.

(5) Turn the handwheel until the looper tip meets the cen-

ter of the right needle.

(6)  Loosen  the  screws ①  and  ④ ,  and  move  the  needle 

guard(rear) ②  back  or  forth.  Make  the  clearance  be

-

tween the right needle and the looper tip to 0 - 0.05 ㎜ .

(7)  Check  the  clearance  between  the  left  needle  and  the 

needle guard(rear) ② is 0 - 0.05 ㎜ with keeping (6).

(8) Tighten the screws ① and ④ securely.

①

④

0 - 0.05 ㎜

0 - 0.05 ㎜

②

③

Содержание VG3511-8F

Страница 1: ...51 1 8F please read the instruction manual and understand the contents well After reading the instruction manual please keep it in a lo cation where it is easily accessible to the operator Instruction Manual HIGH SPEED CYLINDER BED 3 NEEDLE INTERLOCK STITCH MACHINE VG3511 8F ...

Страница 2: ......

Страница 3: ...ting 10 4 3 Changing oil 11 4 4 Checking and replacing oil filter 11 5 Proper operation 12 5 1 Needle system 12 5 2 Installing needles 12 5 3 Threading 13 5 4 Adjusting thread tension 14 5 5 Pressure of presser foot 14 5 6 Adjusting position of presser foot 14 5 7 Adjusting movement of differential feed dog 15 5 8 Adjusting stitch length 16 5 9 Hemming guide left 17 5 10 Trimming width of fabric 1...

Страница 4: ...tion of fabric 34 7 2 Adjusting suction pipe front 35 7 3 Adjusting suction pipe cover 35 7 4 Removing and resetting lower knife 36 7 5 Removing and resetting upper knife 37 7 6 Adjusting upper knife stroke 38 7 7 Sharpening knives 39 8 Specifications 40 Attention This instruction manual is designed mainly for technicians but it is advisable that also operators read the instructions with mark to u...

Страница 5: ...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 6: ...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 7: ...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 8: ...iv Safety instructions Rotating direction symbol ...

Страница 9: ...resser spring regulator Finger guard Eye guard Differential feed graduations Adjusting screw differential feed Oil sight gauge Thread tension spring cap Needle thread take up guard Suction pipe Screw draining oil Main feed bar adjusting screw Thread guide plate Slide cover Hemming guide right Front cover Needle bar guard ...

Страница 10: ...pe Tyep Ａ standard 2 Installation Fig 2 1 Refer to the instruction of the motor for dimensions A B C and D Section X X Section Y Y Ttable dimensions 1200 595 50 center of pulley 3 Φ 9 5 installing hole for motor operator 4 Φ 9 Φ 16 countersunk hole depth 16 ...

Страница 11: ...e Type Ｂ 2 Installation Fig 2 2 Refer to the instruction of the motor for dimensions A B C and D Section X X Table dimensions 1200 595 50 center of pulley 3 Φ 9 5 installing hole for motor operator 4 Φ 9 Φ 16countersunk hole depth 16 ...

Страница 12: ...2 Installation 4 VG3511 8F 2 2 Table top type Fig 2 4 Install a machine correctly referring to Figs 2 3 and 2 4 Fig 2 3 sewing machine machine table sewing machine machine table ...

Страница 13: ...Use only those motor pulleys applicable to the machine If not applicable the sewing machine will be over maximum and it can cause the damage to the machine Table 2 Servomotor Calculate the outside diameter of a motor pulley from the formula as below Or see Table 2 to select a proper motor pulley Outside diameter Usual sewing speed of motor pulley Servomoter speed Belt Use a V belt of M type For be...

Страница 14: ...ng and a material from being caught by the belt see from back side of machine 2 4 Hanging belt Use the M type of V belt 1 Hang the belt on the machine pulley and then on the motor pulley while rotating the machine pul ley 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 Fig 2 6 Before hanging belt ALWAYS tur...

Страница 15: ...read guide plate and push it to the left 2 Fix the thread guide plate with the screws 2 6 Eye guard and finger guard To ensure safe use always install the eye guard and the finger guard on the prescribed position when operating Fig 2 10 2 7 Thread guide plate Fig 2 11 ...

Страница 16: ...ottom of the lower knife holder bracket and fix them with the screw 3 Remove the screws at the rear of the machine frame 4 Install the suction pipe support with the screws at the place the screws were located 5 Install the suction pipe rear on the suction pipe support 6 Insert the flexible hose fitted with the hose band into the suction pipe rear Then fix them with the hose band Fig 2 12 If tighte...

Страница 17: ... Run a new machine at speed 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 If rotated in reverse direction oil cannot be supplied properly It can cause the damage to the machine ...

Страница 18: ...ne If oil does not splash from the nozzle see 4 4 Checking and replacing oil filter on page 11 Fig 4 1 Fig 4 2 Fig 4 3 Fig 4 4 Before lubricating ALWAYS turn the power switch OFF and check that the machine has already stopped Never add additives to the oil If added it can cause the deterioration of the oil and the damage to the machine Fig 4 5 1 Too much oil or insufficient oil can cause oil leaka...

Страница 19: ...e 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 in cludes many bubbles though the oil is sufficiently kept check or replace the oil filter Fig 4 6 6 Reset the screw 7 Change the oil See 4 2 lubricating on page 10 8 Reset the machine on the machine table ...

Страница 20: ...ir 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 2 and 5 3 4 Tighten the screws with a screwdriver Table 3 Fig 5 1 Fig 5 3 Fig 5 2 Tighten the screws with a tightening torque of 0 6N m Before installing ALWAYS turn the power switch OFF and check that the machine has already stopped NO OK NO Japanese standard 9 10 11 12 1...

Страница 21: ...d release Thread D For stretchless thread thread directly to the looper through the looper thread release Thread E Never thread through top cover tension disc A Needle thread Pull out the threads until they come to the front of the needles Then cut off the knots before passing them through the needle eyes Thread correctly for the left needle which is in the inmost position as shown in the figure W...

Страница 22: ...the lock nut and turn the adjusting screw to adjust the pressure To increase the pressure turn it clockwise To decrease the pressure turn it counterclockwise Keep the pressure to a minimum for stable sewing perfor mance Adjust right and left position of the needle holes of the presser foot Loosen the screw Move the front of the presser foot right or t so that the needle drops in the center of the ...

Страница 23: ... the differential feed dog is the same as that of the main feed dog differential ratio 1 1 resulting in uniform sewing 1 Loosen the lock nut 2 Turn the adjusting screw to adjust the movement of the differential feed dog To increase the movement for gathering turn it clock wise To decrease the movement for stretching turn it coun terclockwise 3 Tighten the lock nut securely gathering 5 Proper opera...

Страница 24: ...ship ment Adjusting procedure 1 Loosen the lock nut 2 Align the end of the main feed lever with the re quired position on the main feed graduations Turn the main feed bar adjusting screw to adjust it To make the stitch length smaller turn it clockwise To make the stitch length larger turn it counterclock wise stitch length number of stitch per 1 inch 1 4 2 0 3 0 3 6 18 stitches 13 stitches 8 5 sti...

Страница 25: ...he screw securely Install or remove the folder spacer on the guiding part of the hemming guide left to change the trimming width of a fabric When sewing with the folder spacer the trimming width is 3 0 When sewing without it the trimming width is 5 0 Remove the screw to remove the folder spacer 5 Proper operation aligned See 7 1 Adjusting trimming position of fabric to ad just the right and left p...

Страница 26: ... right 2 Align the right end of the hemming guide right with that of folded fabric set for hem width 3 Tighten the screws securely 1 Loosen the screws of the fabric guide right 2 Align the left end of the fabric guide right with the guiding part of the hemming guide right 3 Tighten the screws securely 5 Proper operation ...

Страница 27: ... Move the upper feed roller lifting lever up or down to raise the upper feed roller when pulling out a fabric due to fabric jam Raising the upper feed roller lifting lever keeps raising the upper feed roller Adjust the pressure of the upper feed roller as low as pos sible to feed a fabric while putting between the upper and lower feed rollers Turn the adjusting screw to adjust it To increase the p...

Страница 28: ... and dust inside the machine at the end of work a day Remove the seal plug at the back of the machine and clean the grooves in the stitch plate feed dog area and oil filter screen area once a week 1 When not using SP device and HR device remove the felts If not removed it may occur irregular condition during sewing 2 If silicone oil is attached to the parts other than SP and HR devices it can caus...

Страница 29: ...Tighten the screws securely As standard make the distance between the needle thread eyelet holder and each eye of the needle thread eyelet as below Left needle 25 Middle needle 17 5 Right needle 10 Adjusting all eyelets together 1 Loosen the screw of the SP device 2 Tighten the screw securely As standard set the SP device at the highest point To tighten the needle thread move the needle thread tak...

Страница 30: ...he needle thread retainer disc and the needle thread retainer sup port which has been attached with the machine as acces sories Use the needle thread guide when the needle thread forms loop unstably with stretchable thread like synthetic thread As standard align the center of the eye of the needle bar thread eyelet with the top of the needle thread guide and make them parallel when the needle bar ...

Страница 31: ...move the thread take up eyelets and to the lowest points Do not thread through the top cover tension disc 6 3 Looper thread tension for stretchable thread Loosen the screws and move the top cover thread eyelet left to adjust it To decrease take up amount turn the eyelet left in the direction T To increase take up amount turn the eyelet left in the direction L The part a on the top cover thread eye...

Страница 32: ... spreader is at the extreme left Then tighten the screw securely Figs 6 8 and 6 10 4 Make the height from the top of the stitch plate to the bottom of the spreader to 8 5 9 5 Then tight en the screw securely Figs 6 9 and 6 10 6 4 1 Spreader Fig 6 8 Fig 6 9 Fig 6 10 0 5 0 8 4 5 5 5 8 5 9 5 stitch plate Adjust the height of the spreader so that the top cover thread passes behind the right needle and...

Страница 33: ...eye of the top cover thread eyelet along the extending line from the slot of the top cover thread guide Fig 6 12 4 Tighten the screw securely Fig 6 12 1 Loosen the screws of the top cover thread guide Fig 6 11 2 Make the clearance between the top of the spreader and the bottom of the top cover thread guide to 0 5 Fig 6 11 3 Set the hook in the center of the slot of the top cover thread guide when ...

Страница 34: ...gauge is an extra part Place an order with our agents or directly with us if needed Fig 6 15 Fig 6 14 Fig 6 13 A timing gauge has the marks A B C D E for each needle distance Move the looper at the extreme right Keep fitting the right needle into the groove V corresponding needle distance and fit the looper tip to the gauge Then tighten the screw securely 6 0 Table 5 AE C B needles D The distance ...

Страница 35: ...w securely Check that the needle drops in the center of the needle hole of the stitch plate respectively Fig 6 16 Fig 6 19 Fig 6 17 Fig 6 18 6 8 Needle and back and forth position of looper 1 Turn the handwheel until the looper tip meets the center of the left needle 2 Loosen the screw and move the looper holder back or forth Make the clearance between the back of the left needle and the looper ti...

Страница 36: ...the centers of the needle eyes 4 Tighten the screw securely 5 Turn the handwheel until the looper tip meets the cen ter of the right needle 6 Loosen the screws and and move the needle guard rear back or forth Make the clearance be tween the right needle and the looper tip to 0 0 05 7 Check the clearance between the left needle and the needle guard rear is 0 0 05 with keeping 6 8 Tighten the screws...

Страница 37: ...ont to 1 5 2 0 3 Tighten the screw securely 4 Loosen the screws and Adjust the clearance be tween the needle guard front and the left or right needles to 0 0 3 respectively 5 Tighten the screws and securely Adjust the height from the top of the stitch plate to the tops of the differential feed dog and the main feed dog to 1 0 1 2 when the feed dogs are at the highest points as standard Also they a...

Страница 38: ...e the side cover three pcs of screws 2 Remove the screw of the differential feed bar con nection 3 Fix the differential feed bar connection in the hole with the screw Max stitch length of the main feed dog is 2 3 in a dif ferential ratio of 1 2 and 3 0 in 1 1 5 respectively ＮＯＴＥ 1 2 gathering 6 Adjustments 1 1 1 1 1 5 ...

Страница 39: ...ever to make the lift between the top of the stitch plate and the bottom of the presser foot to 5 5 7 0 3 Apply the screw to the lifter lever when the presser foot is raised by 5 5 7 0 4 Tighten the lock nut securely 5 Loosen the screws of the collar 6 Make the clearance between the presser bar bushing and the collar to 0 2 when the presser foot is raised by 5 5 7 0 7 Tighten the screws securely s...

Страница 40: ... presser The fabric presser for hem width 19 1 3 4 inches has been set on the right of the presser foot at ship ment Also packed for 25 4 one inch Use the fabric presser depending on hem width To remove the fabric presser loosen the screw of the presser foot ...

Страница 41: ...To decrease the amount turn it clockwise To increase the amount turn it counterclockwise 1 Loosen two screws to tighten the collar slightly 2 Turn the adjusting screw to adjust the pressure of the clutch tension spring Keep the pressure as to turn the spring manually 3 Tighten two screws securely To increase the pressure for stretching turn it clockwise To decrease the pressure for gathering turn ...

Страница 42: ... handwheel to check the sharpness of the blades by setting a thread between the upper knife and the lower knife 5 Set the top of the lower knife 7 0 apart from the upper knife tip at the base of the blade Then tighten the screw of the collar left 6 Recheck the knifes cut properly Before operating ALWAYS turn the power switch OFF and check that the machine has already stopped Refer to 7 2 Adjusting...

Страница 43: ...e to a minimum for suctioning the chips Suction by vacuum system Connect the flexible hose to the vacuum dust collector to adjust the suction power Keep the pressure to a minimum for suctioning the chips Adjust the position of the suction pipe cover after changing the position of the suction pipe front 1 Loosen the screws on the suction pipe cover 2 Align the right side of the suction pipe cover w...

Страница 44: ...pull out the lower knife downward Resetting the lower knife 1 Make the lower knife blade even with the top of the stitch plate Then tighten the screw securely 2 Loosen the screw The upper knife touches the lower knife with its spring 3 Rotate the handwheel manually to check the sharpness of the blades by setting a thread between the upper knife and the lower knife 4 Set the top of the lower knife ...

Страница 45: ...t from the left end of the upper knife shaft 3 Rotate the handwheel manually to lower the upper knife at the lowest point Move the upper knife holder to place the upper knife tip 0 5 above the top of the lower knife Then tighten the screw securely 4 Loosen the screw on the collar left The upper knife touches the lower knife with its spring 5 Rotate the handwheel manually to check the sharpness of ...

Страница 46: ...t Move the upper knife holder to place the upper knife tip 0 5 above the top of the lower knife Then tighten the screw securely See Fig 7 12 6 Loosen the screw on the collar left The upper knife touches to the lower knife with its spring 7 Rotate the handwheel manually to check the sharpness of the blades by setting a thread between the upper knife and the lower knife 8 Set the top of the lower kn...

Страница 47: ...y re sharpen the lower knife Prepare the cold water and re sharpen the lower knife with keeping it cool Re sharpen the correct angle as in the figure 10 45 Normal grinder is not useful to sharpen the upper knife made of super hard alloy Contact us directly or the dealer for re sharpening it ＡＤＶＩＣＥ ...

Страница 48: ... 6 4 Needle Stroke 31 Upper knife stroke 3 0 4 0 Suctioning chips Ventury or vacuum system Presser Foot Lift For 5 6 of needle distance with spreader 5 5 without spreader 7 0 Feed Regulation By adjusting screw available for micro adjustment Differential Ratio Standard 1 0 7 1 1 4 1 1 1 1 2 stitch length is 2 5 mm or less in max normal differential Differential Feed Regulation Micro adjustment by a...

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Страница 52: ...o 1 Edited in 2009 9 Printed in Japan 2009 8 1H Ｉ VG3511 8F 4 4 12 NISHITENMA 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12 号 TEL ０６ ６３６４ ５６２１ 代 FAX ０６ ６３６５ ７１８５ ...

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