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S-7300A

6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)

Sewing machine motor settings (100 to 199)

No. Setting range Initial value Setting

units

Setting details

100

OFF, 1 - 3

OFF

Slow control after sewing start

OFF: Disabled

1: Only at the sewing start after thread trimming

2: Only when sewing is restarted

3: Usual operation

101

1 - 5

Degree of slow startup immediately after sewing start

(A larger number means a slower startup)

* This is not displayed when MSW-100 is set to "OFF".

102

-10 - 10

(Degrees)

Needle up stop position correction value

103

-10 - 10

(Degrees)

Needle down stop position correction value

Feed motor settings (200 to 299)

No. Setting range Initial value Setting

units

Setting details

200

50 - 150%

100

Forward direction pitch correction ratio

201

50 - 150%

100

Reverse direction pitch length correction ratio

Содержание S-7300A-303P

Страница 1: ...e read this manual before using the machine Please keep this manual within easy reach for quick reference SINGLE NEEDLE DIRECT DRIVE LOCK STITCHER WITH ELECTRONIC FEEDING SYSTEM AND THREAD TRIMMER INSTRUCTION MANUAL ...

Страница 2: ...l sewing machines it is normal to carry out work while positioned directly in front of moving parts such as the needle and thread take up and consequently there is always a danger of injury that can be caused by these parts Follow the instructions from training personnel and instructors regarding safe and correct operation before operating the machine so that you will know how to use it correctly ...

Страница 3: ...hich follow this term indicate situations where failure to follow the instructions could result in death or serious injury CAUTION The instructions which follow this term indicate situations where failure to follow the instructions may result in minor or moderate injury Symbols This symbol indicates something that you should be careful of The picture inside the triangle indicates the nature of the...

Страница 4: ... cord from the wall outlet Lightning may cause problems with correct operation Do not connect anything to the USB port other than the USB memory If this is not observed problems with operation may result Installation Machine installation should only be carried out by a qualified technician Contact your Brother dealer or a qualified electrician for any electrical work that may need to be done The s...

Страница 5: ...d may cause your hand to slip and your hand may get caught If an error occurs in machine operation or if abnormal noises or smells are noticed immediately turn off the power switch Then contact your nearest Brother dealer or a qualified technician If the machine develops a problem contact your nearest Brother dealer or a qualified technician Do not hold the machine head by the panel when tilting i...

Страница 6: ...fety Secure the table so that it will not move when tilting back the machine head If the table moves it may crush your feet or cause other injuries Use both hands to hold the machine head when tilting it back or returning it to its original position If only one hand is used the weight of the machine head may cause your hand to slip and your hand may get caught When replacing parts and installing o...

Страница 7: ...to get your hands caught when returning the machine head to its original position after it has been tilted 3 5 Be careful to avoid injury from the moving thread take up and pulley 6 Do not hold Problems with operation or injury may occur 7 Be sure to connect the ground If the ground connection is not secure you run a high risk of receiving a serious electric shock and problems with correct operati...

Страница 8: ...S 7300A vi Control box Oil tank Transformer box 100 V 400 V system only 0874D ...

Страница 9: ...S 7300A vii ...

Страница 10: ...ead counter 37 5 8 Home screen mode setting 39 5 9 Illumination LED brightness setting 40 6 USING THE OPERATION PANEL ADVANCED OPERATIONS 41 6 1 Adding and deleting steps 41 6 2 Editing steps 42 6 3 Sewing start step setting 43 6 4 Program copy 44 6 5 Shortcut key assignment method 45 6 6 Design stitch registration method 46 6 7 Working pace setting method 48 6 8 Memory switch setting method Stand...

Страница 11: ...2 7 Adjusting the needle bar height 78 12 8 Adjusting the needle and feed mechanism timing 79 12 9 Needle and rotary hook timing 80 12 10 Adjusting the presser foot floating amount minute lifting amount option 81 12 11 Thread trimming 82 13 LIST OF ERROR CODES 86 14 TROUBLESHOOTING 90 ...

Страница 12: ...500 sti min More than pitch 4 4000 sti min Backtack sewing speed Standard feed locus Automatic 150 1 3000 sti min Manual 150 1 4000 sti min 1 Inching setting speed Max stitch length 5mm 7mm 5 mm at time of shipment Presser foot height Lifting lever 6mm Knee lifter 16mm Feed dog height 0 8mm 1 2mm Needle DB 1 DP 5 11 18 19 22 Motor AC servo motor Control circuit Microprocessor Rotary hook New lubri...

Страница 13: ...g lever 4 Hand switch A 5 Hand switch B 6 Work clamp 7 Knee lifter plate 8 Power switch 9 Oil gauge window 10 Oil feeding pocket 11 Machine pulley 12 Operation panel 13 Cotton stand 14 Control box 15 Power indicator 16 USB port Safety devices 17 Pulley cover 18 Thread take up cover 19 Finger guard 0876D ...

Страница 14: ...t set up this sewing machine near other equipment such as televisions radios or cordless telephones otherwise such equipment may be affected by electronic interference from the sewing machine The sewing machine should be plugged directly into an AC wall outlet Operation problems may result if extension cords are used Carrying the machine The sewing machine should be carried by the arm and the pull...

Страница 15: ...chine Drill holes as indicated in the illustration below 3 2 Installation 1 Control box 1 Control box 2 Bolts 4 pcs 3 Washers 2 pcs 4 Nuts 2 pcs 5 Spring washers 2 pcs 6 Washers 2 pcs 7 Bolts large 2 pcs 8 Nuts large 2 pcs 9 Spring washers large 2 pcs 10 Washers large 2 pcs 2 Connecting rod 11 Connecting rod 12 Nut 0880D Cotton stand hole Cord hole Head rest hole Control box mounting hole 0881D ...

Страница 16: ...them through the cord hole Tap the head rest 3 securely into the table hole If the head rest 3 is not pushed in as far as it will go the machine head will not be sufficiently stable when it is tilted back 5 Machine head seal 1 Tilt back the machine head and then peel off the sticker 1 2 Peel off the protective sheet 3 from the operation panel 2 0882D 0883D 0938D ...

Страница 17: ... 4 Turn the screw 5 to adjust so that the amount of play in the knee lifter plate 4 is approximately 10 mm 5 Securely tighten the nut 3 6 Loosen the nut 6 7 Turn the adjusting screw 8 to adjust so that the presser foot 7 is at the desired position within a distance of 16 mm of the needle plate when the knee liter plate is fully pressed 8 After adjustment is completed securely tighten the nut 6 Wit...

Страница 18: ...ozzle injury from the scissors may result The sewing machine should always be lubricated and the oil supply replenished before it is used for the first time and also after long periods of non use 1 Hold the base of the nozzle of the accessory oil tank 1 and use scissors to cut about half way along the straight section A of the nozzle 2 Loosen and remove the nozzle and then remove the seal 2 3 Tigh...

Страница 19: ...e ground If the ground connection is not secure you run a high risk of receiving a serious electric shock and problems with correct operation may also occur 3 4 1 Connecting the cords 1 Harness cover 1 Raise the harness cover 1 2 Cords 1 1 Harness cover 2 Sewing machine motor encoder connector 16 pin 3 Feed motor encoder connector 6 pin 4 Hand switch connector 12 pin 5 10 pin operation panel conne...

Страница 20: ...ch an appropriate plug to the power cord 3 The green and yellow wire is the ground wire 2 Insert the power plug into a properly grounded electrical outlet NOTE Make sure that the ground connections are secure in order to ensure safety For Europe specifications Americas 220 V specifications and 100 V 400 V system specifications refer to 3 4 2 Other cords 0889D Lower the tab 4 Align the flat edges P...

Страница 21: ...ing to the respective specifications Europe specifications 1 Filter box 2 Screws 4 pcs 3 Connector 4 CE bush plate 5 Screws 2 pcs 6 CE D cord cover 7 Screws 2 pcs 8 Staples 5 pcs 9 Power cord 1 Attach an appropriate plug to the power cord 9 The green and yellow wire is the ground wire 2 Insert the power plug into a properly grounded electrical outlet NOTE Take care when tapping in the staples 8 to...

Страница 22: ...S 7300A 3 INSTALLATION 11 For 100V 400V system specifications 1 Power switch 2 Screws 2 pcs 4145M ...

Страница 23: ...cord 1 Attach an appropriate plug to the power cord 9 The green and yellow wire is the ground wire 2 Insert the power plug into a properly grounded electrical outlet NOTE Take care when tapping in the staples 7 to make sure that they do not pierce the cords Do not use extension cords otherwise machine operation problems may result Green and yellow wire ground wire 0945D ...

Страница 24: ...opriate plug to the power cord 4 The green and yellow wire is the ground wire 2 Insert the power plug into a properly grounded electrical outlet NOTE Take care when tapping in the staples 5 to make sure that they do not pierce the cords Do not use extension cords otherwise machine operation problems may result Operator 4145M 0892D Green and yellow wire ground wire ...

Страница 25: ...t the machine while sewing as this may result in personal injury or damage to the machine 1 Turning on the power Press the ON power switch 1 The power indicator 2 will illuminate The display 3 of the operation panel will change in the order shown in the illustration During this time the feed mechanism will return to the home position 0893D ...

Страница 26: ...nning at low speed when your foot is simply resting on the treadle or if the treadle pressure is felt to be too weak adjust the position a to c at which the treadle spring 1 is hooked onto the treadle lever 2 a is the weakest position and it becomes gradually stronger at b c and d respectively Backward depression sensitivity adjustment 1 Loosen the nut 3 and turn the bolt 4 When the bolt 4 is tigh...

Страница 27: ...he screw 1 4 2 Removing the bobbin case CAUTION Turn off the power switch before removing the bobbin case The machine may operate if the treadle is depressed by mistake which could result in injury 1 Turn the machine pulley to raise the needle until it is above the needle plate 2 Pull the latch 1 of the bobbin case upward and then remove the bobbin case 3 The bobbin 2 will come out when the latch ...

Страница 28: ...bbin and cut the thread with the knife 4 Loosen the screw 5 and move the bobbin presser 6 to adjust the amount of thread wound onto the bobbin NOTE The amount of thread wound onto the bobbin should be a maximum of 80 of the bobbin capacity 4 4 Installing the bobbin case CAUTION Turn off the power switch before installing the bobbin case The machine may operate if the treadle is depressed by mistak...

Страница 29: ... thread The machine may operate if the treadle is depressed by mistake which could result in injury Turn the machine pulley and raise the thread take up 1 before threading the upper thread This will make threading easier and it will prevent the thread from coming out at the sewing start 0897D 25 30mm Reference value 60 spun thread ...

Страница 30: ...S 7300A 4 PREPARATION BEFORE SEWING 19 4 6 Using the knee lifter The presser foot 2 can be raised by pressing the knee lifter plate 1 0899D ...

Страница 31: ...icons 5 2 Home screen The home screen is displayed when the power is turned on Sewing operations are normally carried out while the home screen is displayed The home screen can be switched between the detailed home screen and the simple home screen At the time of shipment from the factory the detailed home screen is set to be displayed If you keep pressing the key while the home screen is displaye...

Страница 32: ...s key to switch thread trimming locking disabled enabled when the treadle is depressed backward 9 Thread wiper key Press this key to switch the thread wiper operation off on 10 Correction key Press this key to switch correction sewing operation off on by using the hand switch 11 AUTO key Press this key to switch between different sewing operations normal sewing automatic sewing automatic sewing wi...

Страница 33: ...g this key the display switches to the stitch pitch setting screen 5 Main sewing speed key If you keep pressing this key the display switches to the main sewing speed setting screen 6 Production counter key If you keep pressing this key while the production counter is displayed the display switches to the production counter setting screen 7 Lower thread counter key If you keep pressing this key wh...

Страница 34: ...B connector Current program No Type B Plain touch keys symbol is always fixed Example Return key Returns to the previous screen key Increases a value OK key Confirms a value Type C Touch keys which change their setting status symbol each time they are touched Example Lock key Unlocked Locked Thread wiper key Thread wiping enabled Thread wiping disabled Start backtack key Start backtack enabled Sta...

Страница 35: ... OPERATIONS 24 5 3 Menu screen Press the key at any screen to return to the home screen The menu screen consists of the following five screens Press the or key at a menu screen to change the screen 3rd page 2nd page 1st page 4th page 5th page ...

Страница 36: ...ram number Up to nine programs from P1 to P9 can be registered At the time of shipment from the factory P1 to P8 have normal sewing programs registered and P9 has a 4 step fixed stitch sewing name label sewing program registered 5 4 1 Program structure A single program consists of start backtack parameters main sewing parameters end backtack parameters and individual functions for that program Pro...

Страница 37: ...wing speed 3 specifications 220 5000 sti min 5 specifications 220 4500 sti min No of stitches E 1 255 stitches No of stitches F 1 19 stitches No of stitches A 0 19 stitches No of stitches B 1 19 stitches No of stitches C 1 19 stitches No of stitches D 0 19 stitches Stitch pitch 3 specifications 0 05 5 00 mm DS1 DS5 design stitches 5 specifications 0 05 5 00 mm DS1 DS5 design stitches 3 End backtac...

Страница 38: ...O Normal sewing Automatic sewing Automatic sewing with thread trimming Slow start Slow start disabled at the sewing start Slow start enabled at the sewing start 1 Slow start enabled at the sewing start 2 Slow start enabled at the sewing start 3 Slow start enabled at the sewing start 4 Special locus The feed dog moves along the standard locus The feed dog moves along special locus 1 The feed dog mo...

Страница 39: ...stitch number key to select the number of stitches Use the and keys to change the number of stitches 3 Press the stitch pitch key to select the stitch pitch Use the and keys to change the value 4 Press the sewing speed key to select the start backtack sewing speed Use the and keys to change the value 3 Press the home key to return to the home screen Press the return key to return to the menu scree...

Страница 40: ...d key to select the main pattern sewing speed Use the and keys to change the value 3 Press the home key to return to the home screen Press the return key to return to the menu screen or the home screen The settings which are made here are applied to the main sewing key in the home screen Main sewing parameters Setting value Setting units Initial value Main sewing pattern Sewing speed 3 specificati...

Страница 41: ... number key to select the number of stitches Use the and keys to change the number of stitches 3 Press the stitch pitch key to select the stitch pitch Use the and keys to change the value 4 Press the sewing speed key to select the end backtack sewing speed Use the and keys to change the value 3 Press the home key to return to the home screen Press the return key to return to the menu screen or the...

Страница 42: ...ly for each program are called program individual functions When an assignment is made to a program individual function a P symbol appears in the top left corner of the icon On the other hand the functions which can be set in common for all programs P1 to P9 are called program common functions Each of the 9 types of functions can be set to be used as either a program individual function or a progr...

Страница 43: ...ring automatic sewing Needle stops in the up position 5 5 2 Thread trimming lock This sets the thread trimming operation when the treadle is depressed backward Setting details Thread trimming operation is carried out when the treadle is depressed backward Thread trimming operation by depressing the treadle backward is locked disabled 5 5 3 Thread wiper Thread wiping operation can be set Setting de...

Страница 44: ...ewing Refer to 6 10 Hand switches 5 5 5 AUTO Automatic sewing and thread trimming operations can be set However they can only be set in conjunction with continuous backtack sewing and fixed stitch sewing Setting details Automatic sewing is not carried out and sewing stops when the treadle is returned to the neutral position Sewing is carried out automatically for the number of stitches which have ...

Страница 45: ...titch 4000sti min Sewing is carried out according to slow start pattern 3 1st stitch 700sti min 2nd stitch 700sti min 3rd stitch 4000sti min 4th stitch 4000sti min Sewing is carried out according to slow start pattern 4 original pattern 1st stitch Speed set by memory switch MSW 403 2nd stitch Speed set by memory switch MSW 404 3rd stitch Speed set by memory switch MSW 405 4th stitch Speed set by m...

Страница 46: ... details Both the Prev thread away function and the T T short function are disabled The thread pull out prevention function is enabled The T T short function is enabled Both the Prev thread away function and the T T short function are enabled 5 5 9 X over seam assist mode X over seam sewing using the X over seam sensor can be set to on or off Setting details X over seam assist is disabled normal s...

Страница 47: ... then keep pressing the production counter key to switch to production counter editing mode For the simple home screen Keep pressing the production counter key to switch to production counter editing mode For the menu screen Select Production counter editing to switch to the production counter editing screen 2 Use the and keys to change the value of the production counter 1 When the value is chang...

Страница 48: ...ey to switch to lower thread counter setting mode For the simple home screen Keep pressing the lower thread counter key to switch to lower thread counter setting mode For the menu screen Select Bobbin thread counter setting to switch to lower thread counter setting mode 2 You can use the ON OFF key to turn the counter function on and off When the function is turned off will appear in the counter d...

Страница 49: ... bobbin 3 Press the Reset key The lower thread counter value will return to the value which was previously set If not replacing the bobbin 1 Press the return key The lower thread counter value will remain unchanged 3 The display will return to the screen which was being displayed before the lower thread counter out warning appeared and sewing will be possible Lower thread out warning when sewing i...

Страница 50: ...hen the home screen is displayed you can keep pressing the key to switch between home screens 1 Switching to home screen mode setting mode At the menu screen select Home screen mode setting to switch to home screen mode setting mode 2 Use the and keys to set the value 1 for the mode Press the return key to return to the menu screen Press the home key to return to the home screen which has been set...

Страница 51: ...g the LED brightness key to switch to illumination LED brightness setting mode For the menu screen Select LED brightness setting to switch to illumination LED brightness setting mode 2 Use the and keys to set the value for the brightness level 1 The setting range is from 1 to 9 Press the home key to return to the home screen Press the return key to return to the menu screen or the home screen Once...

Страница 52: ...o this mode The program number 1 step number 2 sewing pattern and cursor blue box for the currently selected program are displayed Press the or key to change the cursor position When adding a step Press the key 3 to add a step after the current cursor position The sewing pattern for the added step will be the fixed stitch sewing pattern However if the number of steps has already reached 20 no furt...

Страница 53: ...es 3 Press the stitch pitch key to select the stitch pitch Use the and keys to change the value 4 Press the sewing speed key to select the main pattern sewing speed Use the and keys to change the value 5 Press the link key to switch linking between enabled and disabled No linking with next step Linking with next step 3 Press the return key to return to the previous screen Main sewing parameters wh...

Страница 54: ... setting to switch to program setting mode 3 Next in program setting mode select Step setting for start to switch to sewing start step setting mode 2 Select the step number for the step where you would like sewing to start from 3 The step number 1 for starting sewing will be displayed Depress the treadle to start sewing from that step When sewing is finished the sewing start step number 1 is clear...

Страница 55: ...itch to program copy mode 2 After switching to program copy mode the program number which is currently selected is displayed as the copying source program number 1 and as the copying destination program number 2 Press the or key 3 to select the copying source program number 1 Press the or key 4 to select the copying destination program number 2 When you press the OK key the program will be copied ...

Страница 56: ...key setting mode key selection 1 At the shortcut key setting mode key selection screen select the shortcut key 1 to 4 which you would like to assign a function to Shortcut key setting mode function selection 2 At the shortcut key setting mode function selection screen select the function which you would like to assign to the shortcut key The currently selected icon will be enclosed in a blue box 3...

Страница 57: ...with the same stitch pitch This section shows an example of how to register a design stitch which contains the following eight kinds of stitches into DS 1 1 Switching to add delete step mode 1 At the menu screen select Design stitch registration to switch to the design stitch registration number selection screen 2 Next select the design stitch number to be registered from DS 1 to DS 5 Group 1 1mm ...

Страница 58: ... set the sewing pitch 6 to 4 00mm and the number of stitches 7 to 1 For group 4 set the sewing pitch 8 to 2 00 mm and the number of stitches 9 to 2 For group 5 change the number of stitches 10 to no stitches If the number of stitches is set to all of the subsequent numbers of stitches will be set to 6 Press the return key to return to the design stitch registration number selection screen Press th...

Страница 59: ...us 1 for the target counter is set to OFF the target counter function will not operate It will not be possible to set the working pace at this time either I Press the key 1 to set the operating status to so that the working pace can be set 3 The working pace 2 will be displayed The working pace can be set to between 00 01 and 59 59 Press the key to increase the value and press the key to decrease ...

Страница 60: ...o select only the memory switches with current values that are different from their initial values 2 Press the or key to change the memory switch value 2 If the value that is displayed is different from the value that is currently set the value in the display will flash If you would like to return the setting to the initial value press the Reset key The Reset key is only displayed when the setting...

Страница 61: ...ion of the presser foot lifter pedal operation of the standing operation pedal takes priority ON Treadle operation is still enabled after standing operation pedal has been used alternating operation is possible OFF Treadle operation is disabled after standing operation pedal has been used 011 0 1 0 1 Operation when standing up variable speed pedal is ON 0 Sewing speed corresponds to treadle depres...

Страница 62: ...ation 101 1 5 1 1 Degree of slow startup immediately after sewing start A larger number means a slower startup This is not displayed when MSW 100 is set to OFF 102 10 10 Degrees 0 Degrees 1 Needle up stop position correction value 103 10 10 Degrees 0 Degrees 1 Needle down stop position correction value Feed motor settings 200 to 299 No Setting range Initial value Setting units Setting details 200 ...

Страница 63: ...gram individual function 305 0 1 1 1 Program common function program individual function settings AUTO auto thread trimming 0 Program common function 1 Program individual function 306 0 1 0 1 Program common function program individual function settings Slow start 0 Program common function 1 Program individual function 307 0 1 1 1 Program common function program individual function settings Special...

Страница 64: ...ard then the sewing machine motor stops 402 1 2 1 1 Fixed stitch sewing load FUNC when stitch control in reverse direction 1 Reverse stitch sewing when hand switch is ON 2 Fixed stitch sewing when hand switch is ON 403 300 4000 sti min 4000 100 1st stitch sewing speed for slow start original pattern 404 300 4000 sti min 4000 100 2nd stitch sewing speed for slow start original pattern 405 300 4000 ...

Страница 65: ...a single stitch 3 Continuous correction sewing If the switch is kept pressed sewing continues 4 Continuous correction sewing If the switch is kept pressed sewing continues 4 Single stitch correction sewing at 2nd correction pitch Stops after sewing a single stitch Set the 2nd correction pitch separately 5 Reverse single correction sewing Stops after sewing a single stitch 5 One pitch at second cor...

Страница 66: ... locus 3 while the switch is being pressed 6 X over seam assist X over seam assist is carried out while the switch is being pressed Special locus 3 and X over assist parameters are used during X over seam sewing Changes to special locus 3 while the switch is being pressed 6 Auto X over seam assist switching Switches between X over seam assist and normal sewing each time the switch is pressed Speci...

Страница 67: ...g to switch to hand switch setting mode 2 Select the desired menu For example to set hand switch A so that it operates as a correction sewing switch 1 Select Hand switch A function setting 2 Next select Correction sewing function 3 Press the or key to select the desired setting Press the return key to return to the previous screen Press the menu key to return to the menu screen ...

Страница 68: ...the or key to set the ratio 1 with respect to the current pitch The setting range is from 10 to 250 Press the return key to return to the previous screen Press the menu key to return to the menu screen 6 10 3 2nd pitch setting If 2nd pitch has been set and the hand switch is pressed during sewing the stitch pitch will change to the pitch set as follows 1 Switching to 2nd pitch ratio screen At the ...

Страница 69: ...edia can not be detected will be displayed Press the return key to return to the setting menu The read write items that can be selected are as follows Code Setting item Read write direction 1 Read all programs USB media Panel Sewing machine 2 Write all programs USB media Panel Sewing machine 3 Read all memory switches USB media Panel Sewing machine 4 Write all memory switches USB media Panel Sewin...

Страница 70: ...ization mode and initialization method 1 While pressing the home key turn on the power to switch to the initialization menu screen 2 At the initialization menu screen you can select the items to be initialized 3 When you select an item to be initialized the Are you sure you want to initialize confirmation screen will be displayed Press OK to carry out the initialization When initialization is comp...

Страница 71: ...al injury or damage to the machine Secure the table so that it will not move when tilting back the machine head If the table moves it may crush your feet or cause other injuries Use both hands to hold the machine head when tilting it back or returning it to its original position If only one hand is used the weight of the machine head may cause your hand to slip and your hand may get caught 7 1 Sew...

Страница 72: ...ewing machine will operate Be careful not to depress the treadle by mistake 7 3 Backtacking When hand switch B 1 is pressed during sewing the feed direction will be reversed When it is released the feed direction will return to normal Hand switch B 1 can be set to carry out various different operations Refer to 6 10 Hand switches 0901D ...

Страница 73: ...tches forward direction with small stitch lengths The stitch pitch can be changed to between the main stitch pitch and the main reverse stitch pitch depending on how far it is pushed in Hand switch A 1 can be set to carry out various different operations Refer to 6 10 Hand switches 0902D Sewing direction Condensed stitches ...

Страница 74: ...d Setting method 1 Press the thread wiper key 1 slow start key 2 and best PFM mode key 3 so that the icons shown in the illustration illuminate Refer to 5 5 8 Best PFM mode 2 Adjust the tension for the pre tension 4 so that the upper thread trailing length is 25 to 30 mm spun thread or 28 to 33 mm polyester thread 2 1 25 30mm For spun thread 28 33mm For polyester thread 3 Becomes shorter Becomes l...

Страница 75: ...ect Feed amount correction on X over seam and then set the correction amount The figure is a percentage so for example if you set it to 1 the sewing pitch will increase by 1 of the main sewing pitch 2 3 Select Feed amount correction at crossing of X over seam and then set the correction amount The figure is a percentage so for example if you set it to 1 the sewing pitch will increase by 1 of the m...

Страница 76: ...edle bar and main tension spring to those for 5 specifications 4 Press the special locus key and then select No 2 NOTE The sewing speed will be subjected to the following limits sewing speed sewing pitch 4000sti min 3 0 3500sti min 4 0 2000sti min 5 0 No Icon Diagram of feed locus Specifications Sewing speed sewing pitch Result Standard 5000sti min 4 0 4000sti min 5 0 1 4000sti min 3 0 3500sti min...

Страница 77: ...ction sewing u sing second pitch 1 Single c orrection sewing ON To match the sewing end such as for corner sewing set the correction 2nd pitch to 50 Example If sewing stops half a stitch short before the sewing end press hand switch A if it stops a single stitch short press hand switch B 3 4 Second pitch 1 Reverse OFF If dividing sewing between condense backtack sewing and reverse backtack sewing ...

Страница 78: ...ead tension Upper thread tension too strong Lower thread tension too weak Decrease the upper thread tension Increase the lower thread tension Lower thread tension Adjust by turning the adjustment screw 1 until the bobbin case drops gently by its own weight while the thread end coming out of the bobbin case is held Upper thread tension After the lower thread tension has been adjusted adjust the upp...

Страница 79: ...the presser foot pressure 3 Tighten the adjusting nut 1 9 3 Adjusting the trailing length after thread trimming At the time of thread trimming the thread tension is loosened and tension is applied by the pretension 1 only The standard upper thread trailing length is 25 to 30 mm If the tension of the pretension 1 is increased the lengths of the threads trailing from the needle tips will be reduced ...

Страница 80: ...ench to loosen the set screws 1 and 2 by approximately two turns 3 Adjust the thread take up amount To increase the thread take up amount Turn the thread take up support shaft 3 clockwise so that the groove 4 is facing straight upward To return the thread take up amount to the standard setting Turn the thread take up support shaft 3 counterclockwise so that the groove 4 is facing straight downward...

Страница 81: ...of the machine head may cause your hand to slip and your hand may get caught 10 1 Daily cleaning procedures The following cleaning operations should be carried out each day in order to maintain the performance of this machine and to ensure a long service life Furthermore if the sewing machine has not been used for a long period of time carry out the following cleaning procedures before using it ag...

Страница 82: ... gauge 2 is below the lower reference line Refer to 3 3 Lubrication 3 Checking 1 Replace the needle if it is bent or if the tip is broken 2 Check that the upper threads have been threaded correctly Refer to 4 5 Threading the upper thread 3 Carry out a test sewing 0907D Upper reference line Lower reference line 0908D ...

Страница 83: ...eet 1 5 Check the amount of oil which has spattered onto the sheet If adjustment is necessary carry out the following operations in Adjusting the lubrication amount NOTE If the lubrication amount does not match the correct amount shown in the illustration at left if the amount of spattered oil is too much or none at all turn the adjusting screw 3 clockwise to fully tighten it turn it back counterc...

Страница 84: ...ord plug at the following times The machine may operate if the treadle is depressed by mistake which could result in injury When carrying out inspection adjustment and maintenance When replacing consumable parts such as the rotary hook and knives If the power switch needs to be left on when carrying out some adjustment make sure that you switch the sewing machine to maintenance mode Pay careful at...

Страница 85: ...f the thread tension spring 1 NOTE If using a tension gauge 7 part code 183922 101 to measure the tension take the upper thread reading from the scale at the red line side Do not adjust the tension of the thread take up spring if the presser foot has been raised by the lifting lever or if the thread trimmer solenoid is ON 12 2 Arm thread guide R The standard position of arm thread guide R 1 is the...

Страница 86: ... the bolt 6 and then move the presser bar 7 up or down until the presser foot 1 is at the standard height of 6 mm 5 Tighten the bolt 6 6 Install the rubber cap 5 7 Adjust the presser foot pressure using the presser adjusting screw 4 and then tighten the nut 3 12 4 X over seam sensor correction Be sure to carry out this procedure when replacing the presser foot 1 Turn on the power 2 Press the menu ...

Страница 87: ...mm for 3 specifications or 1 2 mm for 5 specifications 6 Turn the machine pulley to move the feed dog 2 to its highest position above the needle plate 7 Tilt back the machine head 8 Loosen the set screw 3 9 Turn the feed lifting rock bracket stud 4 within a range of 90 from the reference line 5 to adjust the vertical height of the feed bar 6 Fig A 10 Tighten the set screw 3 If you are worried abou...

Страница 88: ...d 7 Loosen the set screw 5 8 Turn the feed base shaft 3 in the direction of the arrow within a range of 90º with respect to the standard position Figure C In order to prevent puckering lower the front of the feed dog 2 In order to prevent the material from slipping raise the front of the feed dog 2 9 Securely tighten the set screw 5 10 Press the home key 6 If you would like to tilt the feed dog 2 ...

Страница 89: ...e bar bush 2 as shown in the illustration when the needle bar 1 is at its lowest position 1 Turn the machine pulley to set the needle bar 1 to its lowest position 2 Remove the rubber cap 3 from the face plate 3 Loosen the screw 4 and move the thread wiper 1 up or down to adjust its position 4 Securely tighten the screw 4 5 Install the rubber cap 3 2286M 0918D ...

Страница 90: ...e needle plate 3 The top of the feed dog 2 and the top of the needle plate 3 are aligned and there is a clearance of 1 to 4 mm between the point of the needle and the top of the needle plate 3 5 Tilt back the machine head 6 Loosen the two set screws 5 of the feed lifting eccentric cam 4 and then turn the feed lifting eccentric cam 4 slightly to adjust the timing To advance the needle timing turn i...

Страница 91: ...the needle bar bush 2 as shown in the illustration 2 Loosen the three set screws 5 and then align the rotary hook tip 3 with the center of the needle 4 There should be a gap of 0 to 0 1 mm for 3 specifications or 0 to 0 15 mm 5 specifications between the rotary hook tip 3 and the needle 4 at this time 3 Securely tighten the three set screws 5 Checking the clearance between the rotary hook and bobb...

Страница 92: ...hand to move the feed dog 2 below the needle plate 3 2 Use the lifting lever to lower the presser foot 1 3 Remove the screw 4 and then replace the adjustment screw set 5 option SB6564 4 Turn the adjusting screw 6 to adjust the floating amount To raise the presser foot 1 Turn the adjusting screw 6 clockwise To lower the presser foot 1 Turn the adjusting screw 6 counterclockwise 5 Tighten the nut 7 ...

Страница 93: ... it is almost parallel to the ridge line on the mounting surface of the upper knife holder 11 If the upper knife 10 is tilted forward the knife pressure will increase and if it is tilted backward the knife pressure will decrease After adjusting operate the upper and lower knife holders by hand and check that the thread can be trimmed If using thick thread or if the thread is not being trimmed adju...

Страница 94: ...ten the screw 4 gently but securely at this time so that the upper knife lever 3 does not shift its position As a guide the screw 4 should be positioned in the center of the slot in the upper knife lever 3 9 Turn the machine pulley while the thread trimmer solenoid is still turned on so that the thread trimmer cam 12 moves the thread trimmer cam roller 13 to its maximum displacement position Make ...

Страница 95: ...the upper knife 10 with the center of the index mark 14 on the lower knife 6 Make sure that the tip of the upper knife 10 does not go past the index mark 14 11 Tighten the screw 2 of the thread trimmer lever 1 Make sure that there is no play in the thrust direction in the forked shaft 15 of the thread trimmer lever 1 see illustration on page 8 0956D 0957D 2mm ...

Страница 96: ...r finger in the direction of the arrow Adjust the position of the thread trimmer cam 2 at this time so that the roller shaft 4 of the thread trimming cam lever assembly 3 touches the hollow c of the thread trimmer cam 2 and so that the clearance between the edge of the thread trimmer is 0 6 to 0 8 mm Fig A 3 Check that the clearance between the edge of the thread trimmer cam 2 and the roller shaft...

Страница 97: ...column should only be checked by a qualified technician For items with appearing in the Page column ask the place of purchase for advice Connector layout diagram Main P C board 0927D Connector P1 Connector P2 Connector P3 Connector P4 Connector P5 Power supply connector Feed motor connector Sewing machine motor connector Connector P13 Connector P6 0926D ...

Страница 98: ...t or standing up operation pedal to original portion Do not press the treadle or the standing operation pedal when turning on the power Sewing machine motor related errors Code Cause Remedy E100 Time for grease up Turn off the power apply grease and then clear the grease up counter according to the method specified E111 The needle up stop position exceeded the specified value when the sewing machi...

Страница 99: ...ion and memory related errors Code Cause Remedy E400 Panel connection was not detected when power was turned on Turn off the power and check the connection of connector P2 E410 Communication error with panel occurred when power was turned on Turn off the power and check the connection of connector P2 E422 Error when reading from USB media Press the Reset key Check the data in the USB media E424 In...

Страница 100: ...etected during main version update Turn off the power and check the connection of connector P2 E882 No USB medial connected when power was turned on Turn off the power and check the connection of the USB media E883 Version update file could not be detected in USB media when power was turned on Turn off the power and then check that the version update file is contained in the USB media E884 Problem...

Страница 101: ... is not tight Is the upper thread tension too strong Is the lower thread tension too weak Adjust the lower thread tension or upper thread tension 67 3 Loops appear in seam Is the thread path not smooth enough Use a file with a fine grain or sandpaper to polish smooth the thread path Is the bobbin turning smoothly Pull out the lower thread to check that there is no slackness in the thread tension o...

Страница 102: ...ull out prevention function If the thread is pulling out at the sewing start try the following remedies 1 Check the upper thread trailing length 2 Set the slow start number to 3 or less 3 Re adjust the upper thread trailing length to make it longer 4 Keep pressing the best PFM mode key 3 and then select Prev thread away PARA from Best PFM mode setting 1 Set the 2nd stitch pitch to 3 2 Increase the...

Страница 103: ... operating range too large Lower the position of the thread take up spring to as low a position as possible Is the presser foot pressure too strong Adjust the presser foot pressure Is the sewing speed too fast Gradually reduce the sewing speed Is the angle of the feed dog correct Tilt the front of the feed dog down slightly 67 67 74 73 68 23 29 77 9 Lower thread is tangled at the sewing start Bobb...

Страница 104: ...ad breaks during backtack sewing Is the backtack sewing speed too fast Use the panel to reduce the backtack sewing speed 28 30 12 Backtack sewing pitch varies depending on the sewing direction Backtack edge is not aligned Adjust using MSW 201 51 13 Thread tightening around X over seam areas Is the height of the feed dog correct Increase the feed dog height 76 14 Upper thread is pulling out of the ...

Страница 105: ...ction If you would like the trailing length to be even sorter after turning on the T T short function Is the meshing position of the thread trimming knives directly below the needle hole Use the T T short parameters to reduce the stitch pitch of the condense stitches the final stitch and the one before it before thread trimming Use the T T short parameters to reduce the pitch during thread trimmin...

Страница 106: ...earance between the needle and the tip of the rotary hook Is the needle and feed mechanism timing correct Adjust to the standard timing Try pressing the special locus key and selecting No 2 or No 3 It is extremely dangerous to leave any pieces of broken needle sticking in the material If the needle breaks search for all pieces until the whole of the needle is found again Furthermore we recommend t...

Страница 107: ...ch pattern In main sewing mode set the sewing pattern to something other than a fixed stitch pattern Is the power supply voltage too low Check the power supply voltage If the power cord is too long or too many appliances are being run from a single outlet this may cause voltage drops which will in turn cause the reset function to activate and stop the machine even if the power supply itself is nor...

Страница 108: ...Industries Ltd All Rights Reserved S 7300A I5031041D 2015 03 D 1 Please note that the contents of this manual may differ slightly from the actual product purchased as a result of product improvements This is the original instructions ...

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Brother S-7300A-303P, Инструкция по эксплуатации

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