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Yamato AZ8600SD, Instruction Manual

The Yamato AZ8600SD is a high-performance device designed for industrial use. For a comprehensive understanding of its features and functions, users can easily access the free instruction manual through our website. Simply visit manualshive.com and download the manual for a hassle-free setup and optimal performance.

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AZ8600SD

6.Adjustment of sewing machine

6.3 Needle thread tension for double chainstitch

Fig. 6-5

Fig. 6-4

◆  To  set  standard  back-and-forth  position  of 

the double chainstitch thread eyelet(right) ① , 

align the eyes ③④ of the needle thread eyelet

②  with  the  eye ⑤  of  the  double  chainstitch 

thread eyelet.

  For adjusting, loosen the screw ⑥ and move the 

double  chainstitch  thread  eyelet(right) ①  in 

the front-and-rear direction.

◆ To set the standard up-and-down position, make 

the distance between the eye ④ which under the 

needle thread eyelet ② and the eye ⑤ of double 

chainstitch thread eyelet to 6mm.

  For adjusting, loosen the screw ⑦ and move the 

holder ⑧  for  double  chainstitch  needle  thread 

eyelet(right) ① up and down.

● To  loosen  the  needle  thread  tension,  move  the 

holder in the direction 

“L”.

● To tighten the needle thread tension, move the 

holder in the direction 

“T”.

①

⑥

⑧

⑦

L

T

①

①

③

⑤

④

②

②

6 mm

Summary of Contents for AZ8600SD

Page 1: ...using your AZ8600SD class please read the in struction 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 AZ8600SD class HIGH SPEED SAFETY STITCH MACHINE FOR MEDIUM WEIGHT MATERIALS ...

Page 2: ... rotating direction of pulley 10 4 Lubrication 1 1 4 1 Lubricating oil 11 4 2 Lubricating 11 4 3 Changing oil 12 4 4 Checking and replacing oil filter 12 5 Proper operation 13 5 1 Needle system 13 5 2 Installing needles 13 5 3 Adjusting thread tension 14 5 4 Pressure of presser foot 15 5 5 Releasing presser foot 15 5 6 Opening cover 16 5 7 Adjusting differential feed dog 16 5 8 Adjusting stitch le...

Page 3: ...thread tension for double chainstitch 23 6 5 Adjusting the width of overedge seam 24 6 6 Upper and lower knives 25 6 7 Height of feed dogs 26 6 8 Tilt of feed dog 27 6 9 Adjusting needles and loopers 28 6 9 1 Height of needle 29 6 9 2 Distance between needle and upper looper 30 6 9 3 Back and forth position of upper looper 30 6 9 4 Installing angle of lower looper 31 6 9 5 Distance between needle ...

Page 4: ...or any third party mishandles the machine or does not avoid the dangerous situation when operating or maintaining the machine CAUTION This indication is given when there is a potential danger of medium to minor injury or damage of the sewing machine if the person in charge or any third party mishandles the machine or does not avoid the dangerous situation when operating or maintaining the machine ...

Page 5: ...idents If any of the labels has become stained or come unstuck be sure to replace it with a new one 2 2 Working environment The environment in which our industrial sewing machines are used may seriously affect their durability functions performance and or safety Do not use the machine in the circumstances below Places of high ambient temperature and or humidity that seriously affects sewing machin...

Page 6: ...e or leaving the machine Be sure to remove the power plug by holding the plug section instead of the cord section in order to prevent electrical shock earth leakage or fire accidents If the machine is using a clutch motor to protect against accidents resulting from abrupt starting of the machine be sure to carry out the above operations after verifying that the machine has stopped completely since...

Page 7: ...roperly as required by law If you have further questions on its disposal consult the place of purchase After opening the oil container be sure to seal it to prevent dust and water from getting into the oil and keep it in the dark to avoid direct sunlight Do not store in high temperature areas or areas exposed to an open flame 3 3 Installation preparation 3 3 1 Machine table Prepare a machine table...

Page 8: ...e sure to turn off the power Also if the sewing machine malfunctions makes abnormal sound or emits unusual odors while operating be sure to turn off the power supply switch While operating the machine wear clothing that cannot be caught in the machine Do not put any tools or other unnecessary objects on the machine table while running the machine If a clutch motor type is used it will continue run...

Page 9: ... operate with the eye guard opened Finger guard The finger guard prevents the operator s fingers from going under the needle However there is some space at the top of the finger guard and other sections and so there is a risk of finger insertion Do not operate when the finger guard is removed Cloth plate The cloth plate prevents contact with the moving parts inside the cloth plate Do not operate w...

Page 10: ...1 AZ8600SD 1 Name of each part Fig 1 1 Oil cap Presser foot Screw for draining oil Cloth plate Presser foot release lever Oil reservoir Eye guard SP device Thread tension spring cap Front cover ...

Page 11: ...ble cutting diagram 2 Installation Fig 2 1 Center of crank shaft Center of machine pulley operator Installing hole for motor Table dimensions 1200 540 40 Section X X Section Y Y Section Z Z Refer to the instruction manual of the motor for dimensions A B C and D ...

Page 12: ... 45 4 not necessary Install the machine correctly refer ring to Figs 2 2 and 2 3 Table 1 The number of spacers and Size of spacers 15 5 Fig 2 3 2 Installation rubber cushion Fig 2 2 machine table supporting board supporting board rubber cushion chute upper support chute ...

Page 13: ...ey 0 5 clearance operator 0 5 clearance 0 5 clearance Section E E Section H H Section J J View F I I I I Section K K K K Section G G G G Section Table dimensions 1200 540 40 auxiliary table auxiliary table auxiliary table 0 5 clearance Refer to the instruction manual of the motor for dimensions A B C and D installing hole for motor d r i l l i n g ...

Page 14: ...2 Installation 5 AZ8600SD Fig 2 5 Cutting diagram of auxiliary table auxiliary table Section X X View W ...

Page 15: ...utting diagram for fully submerged type with a device Fig 2 6 To set up the machine with a device install the device with below dimensions referring to 2 2 1 Table cutting diagram Figs 2 4 and 2 5 AZ8600SD with K1 device Using a servo motor ...

Page 16: ...ion of supporting board so that the machine is set horizontally and the cloth plate is set on the same height with the machine table or higher slightly than it rubber cushion Fig 2 7 supporting board connector supporting board machine table chute supporting board rubber cushion supporting board connec tor supplementary chute cover ...

Page 17: ... to the machine If not the sewing speed will be over maximum and it can cause the machine to damage M type of V belt Outside diameter of pulley Sewing speed of machine Size of belt 50 Ｈｚ 60 Ｈｚ Semi submerged Fully submerged 75 5000 M33 M28 80 5300 M33 M29 85 4700 5700 M34 M29 90 5000 6000 M34 M29 95 5300 6400 M34 M30 100 5600 M35 M30 105 5900 M35 M30 110 6200 M35 M31 115 6500 M36 M31 ÃÁÕÔÉÏÎ Table...

Page 18: ... type of V belt 1 Hang the belt on the machine pulley and then on the motor pulley while rotat ing the machine pulley 2 Adjust the belt tension so that the belt has 10 20 slack when its center is pushed with 10N 3 Lock the motor with the adjusting bar Fig 2 11 Fig 2 12 Before hanging belt ALWAYS turn the motor switch OFF and check that the motor has already stopped Be sure to install belt cover to...

Page 19: ...mum sewing speed during the first 200 hours for about one month so that the machine can of fer a long service life in good condition The rotating direction of the motor pulley and the machine pulley is clockwise as shown in the figure Fig 3 1 If rotating in reverse direction oil can not be supplied properly It can cause the machine to damage ÃÁÕÔÉÏÎ ...

Page 20: ...at the oil splashes from the nozzle in side the oil cap with running the machine If the oil does not splash from the nozzle see 4 4 Checking and replacing oil filter on page 12 Fig 4 1 Fig 4 2 Fig 4 4 Fig 4 3 NEVER add additives to the oil If added it can cause the deterioration of the oil and the damage to the machine Too much oil or insufficient oil can cause oil leakage and machine trouble Be s...

Page 21: ...7 Change the oil See 4 2 Lubricating on page 11 8 Reset the machine on the machine table 9 Hang V belt on the motor pulley and reset the belt cover See pages 8 and 9 Fig 4 5 Fig 4 6 Be careful not to soil the V belt and the machine pulley with the oil ÁÔÔÅÎÔÉÏÎ Be careful the oil may spill out from the oil filter when loosening the screw If the oil filter is clogged with dust lu brication cannot b...

Page 22: ...r of twee zers 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 screw Table 4 Fig 5 3 Fig 5 2 NO OK NO OK NO The tightening torque of the screw is 0 6N m Before installing the needles ALWAYS turn the mo tor switch OFF and check that the motor has already stopped Japanese standard 18 19 20 21 Metric standard 110 ...

Page 23: ...ing thread tension Adjust the thread tension with the thread ten sion spring caps depending on the type of material the type of thread seam width stitch length and other sewing conditions To tighten the thread tension turn caps clockwise To loosen the thread tension turn caps coun terclockwise Fig 5 4 AZ8600SD Fig 5 5 AZ8620SD Table 5 Tighten Loosen Loosen Tighten Model Thread AZ8600SD 2 needle sa...

Page 24: ...otate the machine pulley and position the needle at the highest point Release the presser foot to the left while pressing the presser foot release lever To set the presser foot slide and push the presser foot against to the right side while pressing the presser foot release lever Then release the lever Fig 5 8 Before adjusting ALWAYS turn the motor switch OFF and check that the motor has already s...

Page 25: ...lock wise Differential ratio up to 1 0 6 1 2 is available by internal adjusting mechanism respectively Table 6 shows the graduation differential ratio and max stitch length Front cover To open the front cover slide it to the right and tilt toward you To close it raise it Its spring makes it slide to the left Cloth plate To open the cloth plate shift it to the left while the pushing lever To close ...

Page 26: ...desired graduation of the pulley with the mark on the belt cover 3 Release the push button To shorten stitch length turn the pulley in the direction S To lengthen it turn it in the direction L Stitch length is adjustable in range of 2 0 5 0 mm Fig 5 11 Fig 5 12 Table 7 shows the number of stitches per inch 25 4 mm and 30 mm converted stitch length Table 7 Before adjusting ALWAYS turn the motor swi...

Page 27: ...Use dimethyl silicone oil Check the oil amount in SP tank If not enough supply the oil through the hole Check the oil amount after opening the oil con tainer plug of HR device If not enough sup ply the oil 1 When not using SP device and HR device remove felts and It may occur irregular condition during sewing 2 If the silicone oil is stuck to the parts other than SP and HR devices it can cause the...

Page 28: ...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 material stitch length differential feeding adjusting knives and thread tension Weekly maintenance 1 On weekends clean the mac...

Page 29: ...center of the screw with the marks To set the standard position of the needle thread pull off align the portion with the eye of the needle thread eyelet right when the needle thread pull off comes to the extreme front Loosen the screw to adjust it To loosen the needle thread tension move the needle thread eyelet and the needle thread pull off in the direction L To tighten the needle thread tension...

Page 30: ... thread eyelet Move its left end to mark Lower looper thread eyelet Position the center of the width B with mark Looper thread pull off Move its right end to mark Upper looper thread pull off Align the eye of the thread pull off with the mark when the lower looper moves to the extreme right Lower looper thread pull off Tighten it with the screw at the center of the slot To tighten the thread tensi...

Page 31: ...rew and move the double chainstitch thread eyelet right in the front and rear direction To set the standard up and down position make the distance between the eye which under the needle thread eyelet and the eye of double chainstitch thread eyelet to 6mm For adjusting loosen the screw and move the holder for double chainstitch needle thread eyelet right up and down To loosen the needle thread tens...

Page 32: ...e chaining looper thread eyelet position the center of the slot in the center of the screw To loosen the looper thread tension move the looper thread eyelet in the direction L To tighten the looper thread tension move it in the direction T At the standard timing of the looper thread take up the looper thread take up starts tak ing up the looper thread when the needle starts lowering from the highe...

Page 33: ... moving the holder as desired in the direction N 3 Loosen the screw 4 Tighten the screw while applying the upper knife to the lower knife 5 Loosen the screw 6 The lower knife touches the upper knife closely with its spring 7 Tighten the screw securely Fig 6 7 Fig 6 8 1 After changing the overedge seam width check the sharpness of the blades See 6 6 3 Sharpness of knives 2 Use a stitch plate applic...

Page 34: ... upper knife to the screw fully It makes the height auto matically Then tighten the screw securely The engagement of the upper knife and the low er knife is 0 5 1 0 mm at the lowest point of the upper knife Loosen the nut and turn the screw to adjust it Fig 6 10 6 6 3 Sharpness of knives After adjusting the knives and the width of over edge seam check the sharpness of the edges by setting the thre...

Page 35: ... set the tops of the main and differential feed dogs parallel to that of the stitch plate when the tops of the feed dogs are raised and even with that of the stitch plate Install the auxiliary feed dog 0 3 lower than the main feed dog Adjust the height between the top of the stitch plate and the rear side of the main feed dog to 1 0 mm when the feed dog is at the highest point Loosen the screws to...

Page 36: ... 8 Tilt of feed dog Fig 6 15 Fig 6 16 Remove the tail cover to loosen the screw Move the feed bar block rear lid to make ad justment To tilt the feed dog forward down move it up To tilt the feed dog forward up move it down forward up forward down ...

Page 37: ...ition of lower looper 8 Distance between needle and lower looper 9 Timing relation between lower looper and upper looper Make adjustment by following the steps below In case of 2 needle safety stitch machines 1 Height of needle 2 Front and rear position of upper looper 3 Distance between needle and upper looper 4 Installation angle of lower looper 5 Front and rear position of lower looper 6 Distan...

Page 38: ...the screw 3 Rotate the machine pulley to raise the needle bar at the highest point 4 Loosen the screw and move the needle bar up or down to adjust the height 1 Tighten the screw with a tightening torque of 1 5 N m 2 Check the parallel setting of the needles for 2 needle machine and 3 needle machine See 6 9 6 Back and forth position of lower looper 3 Apply the liquid packing to the thread of the sc...

Page 39: ...om auxiliary looper holder cover 3 Remove the screw 4 Remove the cover 5 Loosen the screw to make adjustment The thick portion around the needle eye of the upper looper will be very close to the right nee dle when the upper looper moves from the extreme left to the right while rotating the machine pul ley clockwise Loosen the screw to make the clearance between the back side of the upper looper an...

Page 40: ... Ａ Ｂ 2 needle safety stitch machines AZ8600SD 2 3 0 5 1 0 3 needle safety stitch machines AZ8620SD 2 4 0 5 1 5 6 9 6 Back and forth position of lower looper 2 needle safety stitch on AZ8600SD Make the clearance between the lower looper tip and the needle to 0 0 05 mm when the lower looper meet the center of the needle 3 needle safety stitch on AZ8620SD 1 Make the clearance between the lower looper...

Page 41: ... Height of needle After adjusting the front and rear position of the lower looper be sure to check the distance between the needle and the lower looper and tighten the screw 6 9 7 Parallel of needles In case of 3 needle safety stitch machines loos en the screw and make adjustment by turning the needle clamp slightly Make the clearance the same as the left needle to 0 0 05 mm when the right needle ...

Page 42: ...nd the double chaining looper tip to 2 3 2 5 when the double chaining looper is at the extreme left Adjust the distance so that the looper tip touches the double chaining needle slightly Back and forth position Adjust the double chaining looper tip to pass the behind the needle as closely as pos sible without touching Adjust the needle to pass the behind curved portion of the looper touching sligh...

Page 43: ...r and the needle to 0 0 05 with loosen ing the screws 6 11 2 Needle and needle guard front Adjust the clearance between the needle and the needle guard front to 0 02 0 05 with loosening the screws Needle guard rear double chain stitch Adjust the clearance between the needle and the needle guard rear to 0 0 05 at the lowest point of the needle with loosening the screws Needle guard front double cha...

Page 44: ...tch plate from the front Slanted presser foot can cause feed scratch mark To set back and forth position adjust the clear ance between the needle drop of the presser foot and that of the stitch plate to 0 2 0 3 as shown in Fig 6 37 Loosen the screw to adjust it 6 Adjustment of sewing machine Fig 6 37 0 2 0 3 ...

Page 45: ... mainte nance easily and prevents troubles caused by the lint Select the type of setting by changing the posi tion of the air deflector depending on the sew ing speed and sewing condition To set the standard position insert the air de flector into the guides and See Fig 7 2 For high speed and less dust during sewing in sert the air deflector into the guides and See Fig 7 3 When not using SC10 devi...

Page 46: ...de plate 4 Install the air deflector into the guides of the oil reservoir securely 5 Reset the wind guide plate 6 Raise the machine upright and supply the oil 7 3 2 Installing blowing hole 1 Install the blowing hole screen on the oil reservoir 2 Install the wind guide plate front on the oil reservoir with two screws while pressing the blowing hole screen Fig 7 4 Fig 7 5 Fig 7 6 ...

Page 47: ...e lint removal pipe and the pipe clamps on the machine frame with two screws 3 Connect the lint removal pipe to the pipe from the lint collecting device Fig 7 7 Suction is not enough when connecting another device to one lint collecting device for SC10 When using ventilation air pressure should be 0 2 Mpa or more ÁÄÖÉÃÅ ...

Page 48: ...tio Max normal differential Gathering 1 2 3 Max reverse differential Stretching 1 0 7 Max reverse differential ratio is available up to 1 0 6 by adjusting the position of the lever pin Differential Feed Regulation Adjustable by moving external lever even during operation Adjustable by Micro adjuster Knives for Fabric Cutting Lower Knife Flat type made of special steel Upper Knife Angled type made ...

Page 49: ...201 1 2 1H U 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 1 2 号 TEL ０６ ６３６４ ５６２１ 代 FAX ０６ ６３６５ ７１８５ P N 9720362 I No 1 Edited in 2011 3 AZ8600SD ...

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