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HE-800B

4. PREPARATION BEFORE SEWING

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4-5-3. Thread take-up spring height

Loosen the set screw (1), and turn the entire thread
tension adjuster to adjust the thread take-up spring height
to between 4 - 6 mm in accordance with the material to
be sewn.

4-5-4. Thread take-up spring tension

Turn the thread tension stud (1) to adjust the thread
take-up spring tension to between approximately 0.1 - 0.2
N in accordance with the material to be sewn.

4-5-5. Adjusting arm thread guide

The standard position of arm thread guide (1) is when the
screw (2) is aligned with the index mark.
The standard position for the arm thread guide (3) is
when the clearance between it and the screw (4) is 0.5
mm as shown in the illustration.

3958Q

Weaker

Stronger

3960Q

Index mark

0.5mm

4777M

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Содержание HE-800B

Страница 1: ...HE 800B Please read this manual before using the machine Please keep this manual within easy reach for quick reference ELECTRONIC DIRECT DRIVE LOCKSTITCH BUTTON HOLER 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 lever 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 corr...

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: ...and dew formation may cause problems with correct operation In the event of an electrical storm turn off the power and disconnect the power cord from the wall outlet Lightning may cause problems with correct operation 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...

Страница 5: ... lubricating oil and grease so that they do not get into your eyes or onto your skin otherwise inflammation can result Furthermore do not drink the oil or eat the grease under any circumstances as they can cause vomiting and diarrhea Keep the oil out of the reach of children Maintenance and inspection Maintenance and inspection of the sewing machine should only be carried out by a qualified techni...

Страница 6: ...e guard B Finger guard C Thread take up cover D Motor cover E Slide cover 3 Be careful to avoid injury from the moving thread take up 7 4 Be careful not to get your hands caught when returning the machine head to its original position after it has been tilted 5 Be careful to avoid injury from the moving cutter 6 Be sure to connect the ground If the ground connection is not secure you run a high ri...

Страница 7: ...HE 800B v Oil tank accessory 4732M 4731M 4730M ...

Страница 8: ...se 25 4 5 Thread tension 26 4 5 1 Lower thread tension 26 4 5 2 Upper thread tension 27 4 5 3 Thread take up spring height 28 4 5 4 Thread take up spring tension 28 4 5 5 Adjusting arm thread guide 28 5 USING THE SEWING MACHINE OPERATION PANEL BASIC OPERATION 29 5 1 Name and function of each operation panel item 29 5 2 Starting the sewing machine 31 5 3 Operating the treadle 32 5 4 Program setting...

Страница 9: ... start 82 11 7 Uneven seams 5 Poor rounding of seam 82 11 8 Uneven seams 6 Around rear tack or front tack 82 11 9 Uneven seams 7 Loose thread end at end backtack 82 11 10 Uneven seams 8 Thread sticking out at end backtack 83 11 11 Uneven seams 9 Sticking in needle plate 83 11 12 Uneven seams 10 All stitches 84 11 13 Upper thread run out 85 11 14 Unraveling of thread trimmed by upper thread trimmer...

Страница 10: ...ES OF MAJOR PARTS 1 Power switch 2 Control box 3 Operation panel 4 Treadle 5 Stop switch 6 Cotton stand 7 Tension release lever 8 Pulley Safety devices 9 Eye guard 10 Thread take up cover 11 Finger guard 12 Motor cover 13 Slide cover 4733M ...

Страница 11: ...motor driven mechanism Work clamp lifter mechanism Pulse motor driven mechanism Height of work clamp 13 mm max adjustable Cutter drive method Double position solenoid Lower thread holding device Standard equipment Bobbin presser Standard equipment Standard sewing pattern 21 Memory pattern 50 Max number of stitch 999 stitches program Overall cycle program stitch no 3 000 stitches 2 3 Needle Schmetz...

Страница 12: ...ht bar tack Radial rectangle Round rectangle Eyelet rectangle Rectangle radial Round radial Eyelet radial Rectangle round Radial round Eyelet round Rectangle tapertack Radial taper tack Round taper tack Eyelet taper tack Rectangle tack Radial tack Round tack Eyelet tack Rear tack Front tack ...

Страница 13: ...ay cause your hand to slip and your hand may get caught All cords should be secured at least 25 mm away from any moving parts Furthermore do not excessively bend the cords or secure them too firmly with staples otherwise there is the danger that fire or electric shocks could occur Be sure to connect the ground If the ground connection is not secure you run a high risk of receiving a serious electr...

Страница 14: ...ontrol box for HE 800B sewing machines Remove the six screws 1 and then remove the control box cover 2 NOTE When opening the cover 2 hold it securely so that it does not fall down 3 Bolts 4 pcs 4 Cushion collars 4 pcs 5 Control box 6 Plain washers 4 pcs 7 Nuts 4 pcs 8 Nuts 4 pcs Tighten the four nuts 7 until the clearance between the base of the table and the top of the box setting plate 9 is 14 m...

Страница 15: ... 1 on top of the work table and insert the four collars 2 2 Provisionally tighten the four flange nuts 4 onto the four bolts 3 and then position the bed base 1 3 Install the bed base 1 with the three flat washers 5 and wood screws 6 and then install the two rubber caps 7 4 Remove the four bolts 3 5 Set the magnet 8 in the position shown in the illustration 4737M 4069M ...

Страница 16: ...om plastic so be careful not to hit it with the machine head when placing the machine head on top of it Make sure that the felt support 4 do not touch the bed base 3 2 Install the machine head with the four spring washers 5 and four bolts 6 3 6 Installing the head rest 1 Head rest NOTE Tap the head rest 1 securely into the table hole If the head rest 1 is not pushed in as far as it will go the mac...

Страница 17: ...hrough the table hole 2 Loosen the two screws 4 at the side of the control box open the cord presser plate 5 in the direction of the arrow and pass the cord through the hole into the box NOTE Check that the operation panel cord is not being clamped when screwing the operation panel into the table The cord may become damaged if it is clamped 4742M 4741M ...

Страница 18: ...head 2 Install the oil stopper plate 1 3 9 Connecting the cords 1 Pass the cord bundle 1 through the hole in the work table 2 Pass the cord bundle 1 through the hole 2 into the control box 3 Securely connect the connectors as indicated in the table below Refer to the next page 4744M 4743M 4745M ...

Страница 19: ...amp sensor work clamp encoder 5 pin black P19 P ENC 5 Needle zigzag motor 4 pin white P21 XPM 6 Feed motor 4 pin blue P22 YPM 6 Work clamp motor 4 pin black P23 PPM 6 Tension release solenoid 4 pin P3 SOL2 6 Connector Connection location on cutter P C board Cord clamp Cutter solenoid 4 pin P2 SOL NOTE Route the needle zigzag feed and work clamp motor harnesses and the tension release solenoid harn...

Страница 20: ...L 4 5 4 Close the cord presser plate 3 in the direction of the left arrow and secure it by tightening the two screws 2 NOTE Close the cord presser plate 3 securely so that no foreign objects insects or small animals can get inside the control box 5 Check that the cords 1 do not get pulled and then gently return the machine head to its original position Lock the cord clamp securely 4747M 4748M ...

Страница 21: ...t secure you run the risk of receiving a serious electric shock and problems with correct operation may also occur 1 Ground wire from the machine head Ground mark position The recommended tightening torque for the ground screws is 1 0 0 1 N m NOTE Make sure that the ground connections are secure in order to ensure safety 4749M ...

Страница 22: ... a to position d Adjusting the treadle return pressure 1 Loosen the nut 5 and turn the bolt 6 The treadle return pressure becomes heavier as the bolt 6 is tightened and becomes lighter as the bolt 6 is loosened 2 Tighten the nut 5 Adjusting the treadle stroke Remove the nut 2 and then move connecting rod 1 from the position in figure A to the position in figure B The treadle stroke will increase b...

Страница 23: ...wo rubber cushions 2 and the washer 3 are securely clamped and so that the cotton stand 1 does not move 3 13 Installing the eye guard CAUTION Attach all safety devices before using the sewing machine If the machine is used without these devices attached injury may result 1 Eye guard assembly 2 Washer 3 Screw 4753M 4754M ...

Страница 24: ...before it is used for the first time and also after long periods of non use Use only the lubricating oil JX Nippon Oil Energy Corporation Sewing Lube 10N VG10 specified by Brother If this type of lubricating oil is difficult to obtain the recommended oil to use is Exxon Mobil Essotex SM10 VG10 3 14 1 Lubricating the bed base 1 Gently tilt back the machine head 2 Slowly pour in lubricating oil unti...

Страница 25: ...ghtened as much as possible and then loosened about two turns 3 15 Connecting the power cord CAUTION 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 operation mayalso occur Connect cords that match the voltage specifications Refer to the next page EU specifications 1 Filter box 2 Screws 4 pcs 3...

Страница 26: ...wer cord 5 Staples 5 pcs 1 Attach an appropriate 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 3 Use the six screws to tighten the cover of th...

Страница 27: ... AC power supply The inside of the control box uses single phase power NOTE If the ground connection is not secure electric shocks operating errors or damage to electronic components such as P C boards may occur 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 3 Use the six screws to ti...

Страница 28: ...er 1 Install the motor cover 2 with the three screws 1 other than A NOTE Be careful not to clamp the cords 3 when installing the motor cover 2 2 Loosen the knob screw 4 and then fully open the slider cover 5 Figure B NOTE If you try to open the slide cover 5 any further when it is already fully open the slide cover 5 may become damaged If the opening angle of the slide cover 5 is too small the sli...

Страница 29: ...t plates 1 to the auxiliary table 2 with the four bolts 3 2 Install the auxiliary table 2 to the bed 4 with the two bolts 5 3 While gently pushing the auxiliary table 2 so that there is no clearance between the bed 4 and the auxiliary table 2 tighten the four bolts 3 Set so that there is no clearance 4763M ...

Страница 30: ...edle otherwise the machine may operate if the treadle is depressed by mistake which could result in injury Use a Schmetz Nm 134 needle 1 Loosen the set screw 1 2 Insert the needle as far as it will go so that the groove is facing toward you 3 Securely tighten the set screw 1 At the time of shipment Spec 2 3 Needle 134 Nm90 134 Nm75 Front Groove 4764M ...

Страница 31: ...ead Push the needle bar to the right to make it easier to pass the thread through the needle When the sewing machine is threaded in threading mode the tension discs 3 will be open and the needle will be moved to the right to make it easier to thread the upper thread Refer to the next page NOTE If you start sewing without passing the thread through the thread guide 5 error E600 will be generated an...

Страница 32: ...wing machine is at standby in automatic sewing mode or test feeding mode The work clamp will drop The tension discs will be fully opened The needle will move to the right 2 Thread the upper thread 3 Once threading of the upper thread is complete press the THREAD key The work clamp and the needle will return to their original positions The tension discs will close Reference If you press the key whi...

Страница 33: ...adle to the 2nd step 7 When the sewing machine starts operating release the WIND key 4 and keep depressing the treadle until winding of the lower thread is complete Once winding of the set amount of lower thread is complete 80 to 90 of the bobbin diameter the bobbin presser 2 will return automatically 8 When winding of the lower thread is complete release the treadle 9 Remove the bobbin hook the t...

Страница 34: ...bin will spin freely and the work clamp pulse motor will get out of step 2 Pass the thread though the slot 1 and then under the tension spring 2 and through the slot 3 3 When sewing whip stitches pull approximately 40 mm of thread out from the thread hole 4 and when sewing purl stitches pull approximately 40 mm of thread out from thread hole 5 4 Open the rotary hook cover 6 5 Hold the latch on the...

Страница 35: ...to right and intertwines with the upper thread is called a purl stitch Reference thread tension Stitch patterns Whip stitch Purl stitch Upper thread Polyester 50 Spun 60 Polyester 50 Spun 60 Lower thread Polyester 50 Spun 60 Polyester 50 Spun 60 Upper thread tension N 0 3 0 7 0 40 0 75 0 75 2 00 1 0 2 5 Lower thread tension N 0 15 0 35 0 05 0 25 Thread take up spring tension mm 4 6 Thread take up ...

Страница 36: ... below In addition the procedure is safe because the sewing machine will not start up even if the treadle is depressed A When the zigzag tension discs 1 are open 1 Press the THREAD key The sewing machine will switch to threading mode The zigzag tension discs 1 will be fully opened 2 Turn the tack tension control 2 to adjust the tension for the bar tacking area and the zigzag area 3 Measure the upp...

Страница 37: ...ension Turn the thread tension stud 1 to adjust the thread take up spring tension to between approximately 0 1 0 2 N in accordance with the material to be sewn 4 5 5 Adjusting arm thread guide The standard position of arm thread guide 1 is when the screw 2 is aligned with the index mark The standard position for the arm thread guide 3 is when the clearance between it and the screw 4 is 0 5 mm as s...

Страница 38: ...ed to increase the values for program numbers and parameter numbers 7 key This key is used to decrease the values for parameter settings and memory switch settings 8 key This key is used to increase the values for parameter settings and memory switch settings 9 ENTER key This key is used to apply the values for parameter settings and memory switch settings 10 Shortcut 1 key This key is used to cha...

Страница 39: ...d write key This key is used to switch to data read write mode The R W indicator in the key illuminates when data read write mode is active 21 THREAD key This key is used to switch to threading mode The THREAD indicator in the key flashes when threading mode is active 22 CUTTER ON key This key is used to switch cutter operation between enabled and disabled The CUTTER ON indicator in the key illumi...

Страница 40: ...he treadle 4 The needle bar and the work clamp will move to the home position The operation panel display will show the standby condition 1 for the mode that was active when operation last stopped if it was automatic sewing mode test feeding mode or program mode 1 The standby condition is the name for the period from the point after switching to one of these modes until the first operation occurs ...

Страница 41: ... to the 2nd step C the machine starts sewing Figure 3 4 When the treadle is depressed backward to the backward position D the work clamp will lift up to higher than the neutral position Figure 4 This is useful for inserting and removing the material The work clamp rises while the treadle is being depressed backward and it returns to the neutral position when the treadle is released Depressed backw...

Страница 42: ...s from P01 to P50 Follow the method given below to change the contents of a program before using it 1 Switch the mode to test feeding mode 2 Select the program number from P01 to P50 1 to select the program that you would like to change The program No 1 changes in the order shown in the illustration each time the key is pressed The key changes the order in the opposite direction NOTE Program mode ...

Страница 43: ...tting has been applied You can cancel the setting change by pressing the AUTO TEST MEMSW R W or COPY key without pressing the ENTER key 7 Repeat steps 4 6 above to change other parameters Shortcut keys The shortcut keys have the following six often used parameters registered into them You can retrieve a desired parameter simply by pressing the corresponding shortcut key Parameters cannot be retrie...

Страница 44: ...1 Rectangle 2 Radial 3 Round 4 Radial rectangle 5 Round rectangle 6 Eyelet rectangle 7 Rectangle radial 8 Round radial 9 Eyelet radial 10 Rectangle round 11 Radial round 12 Eyelet round 13 Rectangle taper tack 14 Radial taper tack 15 Round taper tack 16 Eyelet taper tack 17 Rectangle tack 18 Radial tack 19 Round tack 20 Eyelet tack 01 21 Straight bar tack 1 1 02 Length of the hole cutter length 4 ...

Страница 45: ...ch 500 4 000 sti min 100 500 11 Sewing speed for 2nd stitch 500 4 000 sti min 100 500 12 Sewing speed for 3rd stitch 500 4 000 sti min 100 1 200 13 Slow start 4 Sewing speed for 4th stitch 500 4 000 sti min 100 3 000 14 Underlay speed 5 500 4 000 sti min 100 2 000 15 Sewing speed zigzag part 1 000 4 000 sti min 100 3 600 16 Rear tack speed 5 500 4 000 sti min 100 4 000 17 Front tack speed 5 500 4 ...

Страница 46: ...0 2 0 2 0 mm 0 1 0 0 21 No of front tack stitch radial only 5 11 stitches 2 7 22 Taper tack length taper tack only 1 0 5 0 mm 0 1 3 0 23 Front tack sideways correction rectangle only 1 0 1 0 mm 0 1 0 0 Rear tack length except eyelet 25 0 5 5 0 mm 0 1 1 0 26 Rear tack pitch except radial eyelet 0 10 1 00 mm 0 05 0 30 27 Rear tack width correction except radial eyelet 2 0 2 0 mm 0 1 0 0 No of rear t...

Страница 47: ...ght bar tack pitch 0 2 2 0 mm 0 1 0 8 36 Straight bar tack width 1 5 6 0 mm 0 1 2 0 38 Start backtack 0 6 stitches 2 2 39 Start backtack width 0 5 3 0 mm 0 1 0 5 40 Start backtack pitch 0 10 0 80 mm 0 05 0 30 41 No of sewn together underlays 6 0 1 times 1 0 42 No of rectangle underlays 0 9 times 1 0 43 Saw shaped underlays OFF No saw shaped underlays 1 Front and rear tack 2 Rear tack only 3 Front ...

Страница 48: ...derlay feed pitch including for sewn together underlays 1 0 6 0 mm 0 1 2 0 48 Type of 2 cycle sewing OFF No double stitch 1 Identical double stitch 2 Crossed double stitch 1 OFF 49 No of bar tacks sewn for 2 cycle sewing 1 2 times 1 2 50 First offset for 2 cycle sewing 0 0 0 8 mm 0 1 0 3 51 End backtack 1 6 stitches 1 4 End tacktack width rectangle only 52 OFF Condense stitch 0 1 1 5 mm OFF Conden...

Страница 49: ...ecifications 2 3 specifications 1 54 Tension apply timing A Left zigzag stitch 4 6 stitches 1 0 55 Tension release timing B Rear tack 4 4 stitches 1 0 56 Tension apply timing C Right zigzag stitch 4 4 stitches 1 0 57 Tension release timing D Front tack 4 4 stitches 1 0 58 Sewing end tension apply timing 5 0 stitches 1 0 Whip Purl 3919Q Rear tack Right zigzag stitch Left zigzag stitch Front tack ...

Страница 50: ... Bar tack width B B C I Buttonhole length A D D E F Set automatically 5 4 4 Main restrictions when setting parameters When the sewing area is set to 4 0 x 32 0 mm default setting Symptom Cause Parameter number 08 Zigzag width does not become larger If the sewing area is 4 0 mm and parameter number 04 Cutter X space is set to 0 2 mm the zigzag width that can be entered will be limited to 4 0 0 2 2 ...

Страница 51: ... do not become larger See illustration 5 5 Rear tack vector shape programs Parameter No 31 1 Triangle 2 Rectangle 3 Saw shape Setting range 1 Triangle General sewing Setting range 2 Rectangle This is effective for preventing the material from getting stuck in the needle hole when sewing the rear tack which can happen when using lightweight materials An offset is used so that the stitches do not ov...

Страница 52: ...tive in preventing seams from unravelling in materials which appear not to have a very coarse weave It also serves to reinforce the buttonhole If the seam is hidden and the seam width seems small you can sew 2 3 rectangle underlays to make the material look more voluminous Underlays such as 1 to 9 in the illustration can be sewn in slightly different positions by changing the setting value for par...

Страница 53: ...gth B will not go below 1 7 mm At such times the front tack length can be set to less than 1 7 mm when using cutting after sewing Once sewing is finished and material feeding has finished the cutter will operate Setting range 3 Cutting before sewing Does not operate during the first sewing cycle Only applies to second and subsequent cycles during underlay sewing and overlap sewing This is used in ...

Страница 54: ... the display 3 Select the program number for the copying source 1 The program number for the copying source 1 changes in the order shown in the illustration each time the key is pressed The key changes the order in the opposite direction The program number for the copying source 1 and the program number for the copying destination 2 must both be program numbers for the same types of programs Indep...

Страница 55: ...be carried out In this example the details of the program number for the copying source P03 will be copied to the program number for the copying destination P15 2 6 If you press the COPY key program copy mode will end The sewing machine will return to the mode that was active before program copy mode 4794M 4814M 4813M ...

Страница 56: ...rts of the needle trimmer and injury may result NOTE The feed arm 1 can move so be careful of the clearance When using the machine check that the oil is visible through the oil cap If it cannot be seen stop the machine and eliminate the cause of the problem 6 1 Automatic sewing Automatic sewing mode When carrying out automatic sewing for the first time be sure to carry out a test sewing first In a...

Страница 57: ...nd length feed plate movement in the sewing pattern which has been programmed without actually sewing the program The needle will not move up and down and the cutter will not operate either 1 Switch the mode to test feeding mode The sewing pattern 1 the program number 2 and the number of stitches 3 will appear in the display 2 Select the program number 2 for test feeding The program number 2 chang...

Страница 58: ... test feeding mode will be exited and the sewing machine will switch to the automatic sewing standby condition Manual sewing method Turn the pulley 4 by hand in the direction of the arrow during test feeding Feeding will move forward by one stitch for each rotation of the pulley 4 Test feeding operation by turning the pulley 4 by hand also moves the needle up and down so if material has been set a...

Страница 59: ... being carried out The sewing machine will stop and the buzzer will sound Clearing the pause when not continuing from the point where sewing was paused 1 Press the RESET key The display will change alternately The buzzer will stop sounding 2 Eliminate the cause of the problem 3 Press the RESET key once more The needle bar and the work clamp will carry out home position detection and then they will...

Страница 60: ...ce 4 Press the and keys to determine the position to resume sewing The key moves forward and the key moves backward The feed will move quicker if you keep the key pressed down 5 Depress the treadle 1 to the 2nd step C Automatic sewing will resume NOTE If the STOP switch is pressed before the upper shaft motor starts operating or after it has stopped it will not be possible to continue sewing from ...

Страница 61: ...lected several times Program example The following shows an example of storing a cycle program into cycle program C1 that consists of three steps of independent program P01 with cutter operation on and one step of independent program P03 with cutter operation off Example Setting contents for cycle program C1 Step number Step 1 Step 2 Step 3 Step 4 Independent program number P01 P01 P01 P03 Cutter ...

Страница 62: ...etting has been made When is set the contents for all subsequent steps are cleared 5 Apply the changed contents The contents 3 for step 1 will change from flashing to steadily illuminated 6 Set the step number 2 to S02 7 Repeat steps 4 and 5 above to set the contents for step 2 of the cycle program to P01 the same contents as for step 1 8 Set the step number 2 to S03 9 Repeat steps 4 and 5 above t...

Страница 63: ...4 will disappear 13 Apply the changed contents 14 Press one of the following keys to exit cycle program mode NOTE The cutter operation when a cycle program is selected and automatic sewing is being carried out will occur as shown in the table at right in accordance with the setting of the CUTTER ON indicator which is currently selected 4843M 4787M 4844M 4792M 4847M 4838M 4846M 4845M Cutter operati...

Страница 64: ...MSW key 1 Memory switch number 2 Setting for selected number 3 Setting range 2 Select the memory switch 1 that you would like to change the setting for 3 Change the setting value 3 When the setting value is changed 3 will start flashing If you would like to return the setting to the default value press the RESET key 4 Apply the changed setting The setting for the memory switch will be stored and 3...

Страница 65: ...n units of 0 1 mm 0 1 8 0 1 0 300 Parameter number assignment for FUNC key Functions can be assigned to the FUNC key to make it operate as a seventh shortcut key OFF No assignment The help screen is displayed while the FUNC key is pressed 1 60 When the FUNC key is pressed the parameter setting screen for the number which has been set is displayed OFF 1 60 OFF 301 Display screen contrast You can ch...

Страница 66: ...he initialization level selected Refer to the table below 3 To carry out initialization OPERATING will be displayed and initialization will start If you do not wish to carry out the initialization procedure press the RESET key 4 To exit initialization mode Normal sewing machine operation will then be possible Initialization level and settings that are reset or initialized Level 1 Level 2 Level 3 P...

Страница 67: ... Lower thread counter 2 While the sewing machine is at standby hold down the ENTER key and press the key The mode will switch to lower thread counter setting mode 3 Set the counting value 1 When the counting value is changed 1 will flash in the display Press the RESET key to return the value to what it was before it was changed 4 Apply the changed setting The mode will return to automatic sewing m...

Страница 68: ...Production counter 2 While the sewing machine is at standby hold down the ENTER key and press the key The mode will switch to production counter setting mode 3 Set the counting value 1 When the counting value is changed 1 will flash in the display If you would like to return the setting to 0 press the RESET key 4 Apply the changed setting The mode will return to automatic sewing mode NOTE If you p...

Страница 69: ...rn to the normal display NOTE If the FUNC key has been assigned as a shortcut key by changing the memory switch settings it will not be possible to display the help screen To display the help screen change the setting for memory switch No 300 to OFF Refer to 7 2 Setting memory switches Meaning of help screen symbols Symbol Meaning Operation method How to switch to data initialization mode While ho...

Страница 70: ... when handling the lubricating oil and grease so that they do not get into your eyes or onto your skin otherwise inflammation can result Furthermore do not drink the oil or eat the grease under any circumstances as they can cause vomiting and diarrhea Keep the oil out of the reach of children 8 1 Cleaning 1 Remove lint and dust from the thread passages 2 Remove lint and dust from around the work c...

Страница 71: ...ork clamp lifter pulse motor to go out of step 8 2 Draining the oil 1 Gently tilt back the machine head 2 Place the oil tank 1 against the underside of the table and then remove the screw 2 3 After the lubricating oil has been drained make sure that the O ring 3 is in the correct position and then tighten the screw 2 Wipe the magnet 4 and the bed base 5 so that they are free from dirt 8 3 Cleaning...

Страница 72: ...ways check that the tip of the needle is not broken and also the needle is not bent before starting sewing 8 6 Cleaning the length feed plate Clean the length feed plate 1 if foreign materials such as shavings start getting onto the material 1 Loosen the two bolts 2 and then remove the length feed plate 1 2 Clean the underside of the length feed plate 1 and the needle plate 3 4877M 3971Q 4876M ...

Страница 73: ...ine head Take care when handling the cutter Perform the following steps before carrying out the tasks listed below 1 Turn on the power to carry out home position detection and then switch the sewing machine to automatic sewing mode or test feeding mode 2 Press the THREAD key to switch to threading mode and then carry out adjustments The work clamp will drop and the sewing machine will not start up...

Страница 74: ...f the needle bar 6 and then align the rotary hook tip 9 with the center of the needle when the needle bar 6 contacts the gauge 7 Different gauges optional part are used for each of the two specifications 2 and 3 so make sure that the gauge being used matches the specifications and application for the sewing machine being adjusted 8 Tighten the two set screws 4 of the rotary hook joint 3 9 Close th...

Страница 75: ...ine head to its original position 6 Press the THREAD key 9 4 Adjusting the inner rotary hook and rotary hook holder overlap 1 Gently tilt back the machine head 2 Loosen the two screws 3 to adjust so that the tip of the rotary hook holder 1 does not protrude past the edge A of the inner rotary hook 2 3 Gently return the machine head to its original position 9 5 Adjusting the work clamp pressure The...

Страница 76: ...le plate NOTE When the cutter is driven by the solenoid the movement will be approximately 2 mm greater than that shown in the illustration If the cutter does not cut properly the cutter may get stuck in the material and not return If this happens replace or sharpen the cutter 2 Loosen the two screws 4 and move the cutter holder 5 to adjust so that the clearance between the cutter and the needle b...

Страница 77: ...nd the work clamp 3 to approximately 1 mm NOTE The work clamp 3 will tilt when sewing joints so adjust so that the upper thread trimmer 2 do not touch it If the upper thread trimmer 2 touch the work clamp 3 the work clamp lifter pulse motor may get out of step If the tilting of the work clamp 3 causes skipped stitches to occur when sewing material joints use the accessory auxiliary sheet 4 as show...

Страница 78: ...cam 1 and prevent the upper thread trimmer 2 from opening when the work clamp is lowered 3 Apply grease to the inclined face D of the opening cam 1 4 Press the THREAD key Trimmer fully opening timing adjustment 1 Loosen the two bolts 7 and then adjust the support plate 8 so that the back plate 5 and the cam 6 overlap by approximately 1 0 1 5 mm NOTE If the amount of overlap is too small the upper ...

Страница 79: ...e shaft B 1 to the left or right 3 Gently return the machine head to its original position 9 10 Adjusting the bobbin presser 1 Press the THREAD key to switch to threading mode 2 Gently tilt back the machine head 3 Loosen the set screw 1 and then adjust so that the bobbin presser 2 goes into the hole in the bobbin case 3 4 Check that the work clamp is at the home position and then loosen the nut 4 ...

Страница 80: ...5 The stop switch was still pressed when the power was turned on or there is a problem with the stop switch connection Turn off the power and check the connection of the stop switch connector P9 at the main P C board 10 E016 Problem with the stop switch connection Turn off the power and check the connection of the stop switch connector P9 at the main P C board 10 E025 Treadle was still depressed t...

Страница 81: ...k B on the motor cover E111 The sewing machine could not stop correctly at the needle up stop position after sewing Turn off the power and then check that there are no problems with the cutter mechanism the thread trimming mechanism and the upper shaft motor mechanism E112 The needle bar dropped during home position detection or while the SD card was being accessed Turn off the power and then turn...

Страница 82: ...main P C board are properly connected 10 E201 Needle zigzag motor stopped due to a problem Turn off the power and then check if there are any problems in the needle zigzag direction E210 Feed motor home position cannot be detected Feed motor feed sensor or feed encoder signal is not connected correctly Turn off the power and then check that the feed sensor connector P8 feed encoder connector P18 a...

Страница 83: ...the motor P C board are properly connected 74 E422 An error occurred while reading from the SD card Press the RESET key to clear the error Check the data on the SD card E424 Insufficient free space on the SD card Press the RESET key to clear the error Use a different SD card E425 An error occurred while writing to the SD card Press the RESET key to clear the error Check if the media is write prote...

Страница 84: ...y once more 51 50 E650 Cutter is not at home position Cutter is lowered Turn off the power and then check if there are any problems with the cutter mechanism Check that cutter solenoid connector P2 on the cutter P C board is properly connected 10 E651 Cutter has not operated Does not drop Turn off the power and then check that cutter sensor connector P7 on the main P C board and cutter solenoid co...

Страница 85: ...ck that the control program has been saved into the correct folder E884 There is a problem with the control program Write the correct file onto the SD card E885 Writing of the control program cannot begin Turn off the power and then check that there are no problems with the wiring and the P C boards inside the control box which are to have their firmware versions updated 10 11 E886 Data error occu...

Страница 86: ...dle 21 Needle Needle and thread Replace needle that fits the thread Upper thread threading Thread the upper thread correctly 22 Threading Lower thread threading Thread the lower thread correctly 25 Flaw or abrasion on the thread path Polish with buff or replace the part Especially pay attention to finishing around needle plate hole Flaw on the rotary hook tip and rotary hook edge Polish with buff ...

Страница 87: ...d from the inner and rotary hook 62 Upper thread amount Arm thread guide position Adjust the arm thread guide position 28 Bobbin case Damaged outside of bobbin case and bent bobbin holder spring etc Polish with buff or replace the part Use the HE 800B bobbin case 11 2 Skipped stitches Items with a in the Page column should only be handled by a qualified technician Cause Check Remedy Page Needle fa...

Страница 88: ...dle bar to the left and right with your finger and check that the tip of the rotary hook does not strike the needle 66 Thread tension Zigzag thread upper thread tension Adjust the upper thread tension appropriately 26 27 Needle bar play Vertical and longitudinal needle bar play Reduce the needle bar play or replace the parts Lower thread retainer cam Lower thread retainer cam should be sitting fir...

Страница 89: ... the screw to decrease thread take up amount so that upper thread does not pull out of trimmer assembly at the sewing start Lower thread tension Adjust the lower thread tension appropriately 26 Bobbin holder spring Add tension to the bobbin holder spring Lower thread retainer position Adjust the lower thread retainer position Adjust lower thread retainer so that a 35 40 mm thread leader is left af...

Страница 90: ... are bent replace them Check that the screws are tightened 11 5 Uneven seams 3 Seam lifts up at the sewing start Seam lifts up and does not tighten at the sewing start Items with a in the Page column should only be handled by a qualified technician Cause Check Remedy Page Upper thread trimmer gradual opening timing Adjust the timing so that the upper thread trimmer gradually start opening when the...

Страница 91: ...e lower thread correctly 25 Stitch patterns Purl stitch whip stitch Set using parameter number 53 40 Tension release Tension release timing Use parameter numbers 54 to 57 to set the timing for changing the thread tension 40 11 8 Uneven seams 6 Around rear tack or front tack Items with a in the Page column should only be handled by a qualified technician Cause Check Remedy Page Tension release Tens...

Страница 92: ...ning cam 69 Uneven material feeding Lower thread clamp opening timing Adjust so that the lower thread clamp plate opens when the feed mechanism moves 6 7 mm 70 11 11 Uneven seams 9 Sticking in needle plate Front and rear tack sections of material gets stuck in needle hole Items with a in the Page column should only be handled by a qualified technician Cause Check Remedy Page Start backtack Number ...

Страница 93: ...eplace needle with one that fits for the thread Flaw on the rotary hook holder Polish with buff or replace the part Rotary hook holder Rotary hook holder and inner rotary hook overlap amount Adjust the rotary hook holder and inner rotary hook overlap amount 66 Rotary hook Rotary hook lubrication Decrease the quantity of lubrication oil Note that if you reduce the amount of oil too much thread brea...

Страница 94: ...mer cutting depth adjustment Upper thread trimmer assembly holding force Adjust so that the thread does not come out when you cut it with trimmer and hold the end of the thread between your fingers and gently swing the assembly Bend the trimmer U or replace them so that the correct force is applied Repair any damage from striking the needle Upper thread trimmer assembly Opening cam position Adjust...

Страница 95: ...ift amount The gauge is an option part 1 Adjust the needle bar height to 1 on the gauge 2 Adjust the needle and rotary hook timing to 2 on the gauge 64 65 Rotary hook Thread chips on rotary hook edge Remove thread chips 62 Lower thread retaining amount Adjust the lower thread retaining amount Lower thread snapping Adjust the positions of the lower thread retainer lower thread clamp and lower threa...

Страница 96: ...tment Upper thread trimmer cutting depth adjustment Upper thread trimmer assembly Burr on tips of upper thread trimmer M and upper thread trimmer U Polish with buff or replace the part Tension release timing Opening amount of zigzag tension discs and bar tack tension discs particularly zigzag tension discs Adjust the zigzag tension discs by moving the tension stud bracket in and out Adjust the bar...

Страница 97: ...tion adjustment Upper thread trimmer cutting depth adjustment Upper thread trimmer assembly Upper thread trimmer assembly holding force Adjust so that the thread does not come out when you cut it with trimmer and hold the end of the thread between your fingers and gently swing the assembly Bend the trimmer U or replace them so that the correct force is applied Repair any damage from striking the n...

Страница 98: ...r thread trimmer driving link so that it stops at the face plate In this position tighten the bolts so that the small slot in the upper thread trimmer lever and the edge of the washer are aligned Cam Upper thread trimmer opening timing Adjust so that the cam opens the stop plate properly 69 Upper thread trimmer gradual opening timing Adjust the timing so that the upper thread trimmer gradually sta...

Страница 99: ... hook Adjust the gap between the needle and the rotary hook tip to 0 01 0 08 mm Adjust to as large as possible without causing skipped stitches to occur Move the needle bar to the left and right with your finger and check that the tip of the rotary hook does not strike the needle 66 Needle plate position Adjust the forward back position of the needle plate so that the needle is in the center of th...

Страница 100: ...nd cutter solenoid connector P2 on the cutter P C board are properly connected 10 Nut Check if the nut is loose and tighten it securely Solenoid stopper Cutter sensor position Adjust the cutter sensor position Check if the mounting screws are loose and tighten them securely Cutter bar guide Smoothness of cutter operation Adjust the cutter bar guide so that the cutter operates smoothly with no play...

Страница 101: ...ms with a in the Page column should only be handled by a qualified technician Cause Check Remedy Page Setting the length of the hole Length of the hole Set parameter number 02 to the same value as the length of the cutter being used 35 Setting the cutter spacing Cutting of zigzag seam Use parameter number 04 to set the cutter X space Use parameter number 03 to set the correction of the cutter X po...

Страница 102: ...work clamp pressure Press material so that the material is properly stretched When using knits or woven materials replace the parts with the 3 specification parts Length feed plate for specification 3 work clamp assembly for knits needle plate 1 2 for specification 3 66 Underlay Underlay is being sewn Use parameter number 47 to reduce the underlay feed pitch to about 0 5 Use parameter number 14 to...

Страница 103: ...e work clamp lifting height setting Change the settings of memory switch Nos 001 002 003 004 If the work clamp lifting height is too high the lower thread trimming operation and the work clamp lifting will become stiff and the work clamp motor may go out of step 56 Lower thread threading Insert the bobbin correctly and pass the lower thread through the bobbin case correctly If the bobbin is insert...

Страница 104: ...f there are any problems with the connection and contacts of feed motor connector P22 on the main P C board 10 Upper thread trimmer position Remove and re install the upper thread trimmer Upper thread trimmer Check if the cam opens the stop plate Adjust the cam position If the feed mechanism operates when the cam has not opened the stop plate the cutter will bump against the upper thread trimmer 6...

Страница 105: ...moothly 11 29 Upper shaft does not rotate as far as the needle up stop position Items with a in the Page column should only be handled by a qualified technician Cause Check Remedy Page Thread retainer and rotary hook are touching Thread trimmer mechanism position 1 Turn the machine pulley backward to set the needle bar to the needle up position 2 Push the thread driving arm in the direction of the...

Страница 106: ...ndustries Ltd All Rights Reserved This is the original instructions Please note that the contents of this manual may differ slightly from the actual product purchased as a result of product improvements HE 800B SB3902 001 E 2012 10 B 1 ...

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